./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test22_2-2.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_2-2.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 577bc449dc1bd07ff03d533463a99a048a746b45 ...................................................................................................................................... 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_2-2.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 577bc449dc1bd07ff03d533463a99a048a746b45 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 06:18:45,346 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 06:18:45,347 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 06:18:45,371 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 06:18:45,371 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 06:18:45,372 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 06:18:45,373 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 06:18:45,379 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 06:18:45,382 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 06:18:45,386 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 06:18:45,387 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 06:18:45,392 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 06:18:45,393 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 06:18:45,395 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 06:18:45,397 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 06:18:45,399 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 06:18:45,400 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 06:18:45,401 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 06:18:45,403 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 06:18:45,409 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 06:18:45,414 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 06:18:45,415 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 06:18:45,416 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 06:18:45,418 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 06:18:45,421 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 06:18:45,423 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 06:18:45,423 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 06:18:45,424 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 06:18:45,425 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 06:18:45,426 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 06:18:45,426 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 06:18:45,427 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 06:18:45,428 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 06:18:45,429 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 06:18:45,430 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 06:18:45,430 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 06:18:45,431 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 06:18:45,431 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 06:18:45,431 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 06:18:45,433 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 06:18:45,433 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 06:18:45,437 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-08-27 06:18:45,475 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 06:18:45,475 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 06:18:45,476 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 06:18:45,476 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 06:18:45,477 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 06:18:45,477 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 06:18:45,477 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 06:18:45,478 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 06:18:45,478 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 06:18:45,478 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 06:18:45,478 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 06:18:45,478 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 06:18:45,478 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 06:18:45,479 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-27 06:18:45,479 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-27 06:18:45,479 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-08-27 06:18:45,479 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-27 06:18:45,479 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-27 06:18:45,480 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 06:18:45,480 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 06:18:45,480 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 06:18:45,480 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 06:18:45,480 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-27 06:18:45,481 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 06:18:45,481 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 06:18:45,481 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-27 06:18:45,481 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 06:18:45,481 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-27 06:18:45,481 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 06:18:45,482 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 577bc449dc1bd07ff03d533463a99a048a746b45 [2021-08-27 06:18:45,786 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 06:18:45,814 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 06:18:45,816 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 06:18:45,817 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 06:18:45,818 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 06:18:45,819 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test22_2-2.i [2021-08-27 06:18:45,874 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42eb5f2a4/86111ff983294fe6ae1c0565cd24a811/FLAG2704defaf [2021-08-27 06:18:46,401 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 06:18:46,401 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test22_2-2.i [2021-08-27 06:18:46,413 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42eb5f2a4/86111ff983294fe6ae1c0565cd24a811/FLAG2704defaf [2021-08-27 06:18:46,860 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42eb5f2a4/86111ff983294fe6ae1c0565cd24a811 [2021-08-27 06:18:46,863 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 06:18:46,864 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-27 06:18:46,866 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 06:18:46,866 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 06:18:46,869 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 06:18:46,869 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:18:46" (1/1) ... [2021-08-27 06:18:46,870 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6451bf83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:18:46, skipping insertion in model container [2021-08-27 06:18:46,870 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:18:46" (1/1) ... [2021-08-27 06:18:46,876 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 06:18:46,923 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 06:18:47,218 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:18:47,232 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-08-27 06:18:47,233 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@21e7fe1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:18:47, skipping insertion in model container [2021-08-27 06:18:47,233 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 06:18:47,233 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-08-27 06:18:47,235 INFO L168 Benchmark]: Toolchain (without parser) took 369.81 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 28.9 MB in the beginning and 46.9 MB in the end (delta: -18.0 MB). Peak memory consumption was 14.5 MB. Max. memory is 16.1 GB. [2021-08-27 06:18:47,236 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 54.5 MB. Free memory was 35.9 MB in the beginning and 35.9 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 06:18:47,237 INFO L168 Benchmark]: CACSL2BoogieTranslator took 367.53 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 28.7 MB in the beginning and 46.9 MB in the end (delta: -18.2 MB). Peak memory consumption was 12.4 MB. Max. memory is 16.1 GB. [2021-08-27 06:18:47,238 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 54.5 MB. Free memory was 35.9 MB in the beginning and 35.9 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 367.53 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 28.7 MB in the beginning and 46.9 MB in the end (delta: -18.2 MB). Peak memory consumption was 12.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 06:18:48,867 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 06:18:48,870 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 06:18:48,911 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 06:18:48,912 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 06:18:48,916 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 06:18:48,917 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 06:18:48,922 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 06:18:48,925 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 06:18:48,930 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 06:18:48,931 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 06:18:48,935 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 06:18:48,936 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 06:18:48,938 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 06:18:48,939 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 06:18:48,943 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 06:18:48,944 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 06:18:48,945 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 06:18:48,947 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 06:18:48,951 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 06:18:48,954 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 06:18:48,955 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 06:18:48,957 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 06:18:48,957 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 06:18:48,962 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 06:18:48,962 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 06:18:48,962 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 06:18:48,964 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 06:18:48,964 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 06:18:48,965 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 06:18:48,965 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 06:18:48,966 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 06:18:48,967 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 06:18:48,968 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 06:18:48,969 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 06:18:48,969 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 06:18:48,970 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 06:18:48,970 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 06:18:48,970 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 06:18:48,972 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 06:18:48,972 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 06:18:48,973 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-08-27 06:18:49,013 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 06:18:49,013 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 06:18:49,014 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 06:18:49,014 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 06:18:49,016 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 06:18:49,017 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 06:18:49,017 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 06:18:49,017 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 06:18:49,017 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 06:18:49,017 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 06:18:49,018 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 06:18:49,018 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 06:18:49,019 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 06:18:49,019 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-27 06:18:49,019 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-27 06:18:49,019 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-08-27 06:18:49,019 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-27 06:18:49,019 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-27 06:18:49,020 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-27 06:18:49,020 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-27 06:18:49,020 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 06:18:49,020 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 06:18:49,020 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 06:18:49,021 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 06:18:49,021 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-27 06:18:49,021 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 06:18:49,021 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 06:18:49,021 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-27 06:18:49,021 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-27 06:18:49,022 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-27 06:18:49,022 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 06:18:49,022 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-27 06:18:49,022 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 577bc449dc1bd07ff03d533463a99a048a746b45 [2021-08-27 06:18:49,332 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 06:18:49,349 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 06:18:49,351 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 06:18:49,352 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 06:18:49,353 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 06:18:49,354 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test22_2-2.i [2021-08-27 06:18:49,409 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/26c9bc347/e91fdcc39dfb4d42bd58169aaf3346d0/FLAG0cd656e88 [2021-08-27 06:18:49,964 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 06:18:49,965 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test22_2-2.i [2021-08-27 06:18:49,982 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/26c9bc347/e91fdcc39dfb4d42bd58169aaf3346d0/FLAG0cd656e88 [2021-08-27 06:18:50,377 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/26c9bc347/e91fdcc39dfb4d42bd58169aaf3346d0 [2021-08-27 06:18:50,383 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 06:18:50,384 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-27 06:18:50,385 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 06:18:50,385 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 06:18:50,388 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 06:18:50,389 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:18:50" (1/1) ... [2021-08-27 06:18:50,390 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72f74293 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:18:50, skipping insertion in model container [2021-08-27 06:18:50,390 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:18:50" (1/1) ... [2021-08-27 06:18:50,395 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 06:18:50,444 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 06:18:50,845 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:18:50,863 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-08-27 06:18:50,875 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 06:18:50,933 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:18:50,953 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 06:18:51,021 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:18:51,063 INFO L208 MainTranslator]: Completed translation [2021-08-27 06:18:51,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:18:51 WrapperNode [2021-08-27 06:18:51,064 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 06:18:51,065 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 06:18:51,065 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 06:18:51,066 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 06:18:51,074 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:18:51" (1/1) ... [2021-08-27 06:18:51,079 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:18:51" (1/1) ... [2021-08-27 06:18:51,117 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:18:51" (1/1) ... [2021-08-27 06:18:51,118 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:18:51" (1/1) ... [2021-08-27 06:18:51,144 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:18:51" (1/1) ... [2021-08-27 06:18:51,148 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:18:51" (1/1) ... [2021-08-27 06:18:51,152 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:18:51" (1/1) ... [2021-08-27 06:18:51,175 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 06:18:51,176 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 06:18:51,176 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 06:18:51,176 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 06:18:51,177 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:18:51" (1/1) ... [2021-08-27 06:18:51,190 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 06:18:51,196 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 06:18:51,206 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-27 06:18:51,207 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-27 06:18:51,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-08-27 06:18:51,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 06:18:51,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-08-27 06:18:51,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-08-27 06:18:51,236 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-08-27 06:18:51,236 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-08-27 06:18:51,237 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-08-27 06:18:51,237 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-08-27 06:18:51,237 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-08-27 06:18:51,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-08-27 06:18:51,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-08-27 06:18:51,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-08-27 06:18:51,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-08-27 06:18:51,238 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-08-27 06:18:51,238 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-08-27 06:18:51,238 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-08-27 06:18:51,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-08-27 06:18:51,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-08-27 06:18:51,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-08-27 06:18:51,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-08-27 06:18:51,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-08-27 06:18:51,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-08-27 06:18:51,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-08-27 06:18:51,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-08-27 06:18:51,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-08-27 06:18:51,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-08-27 06:18:51,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-08-27 06:18:51,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-08-27 06:18:51,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-08-27 06:18:51,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-08-27 06:18:51,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-08-27 06:18:51,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-08-27 06:18:51,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-08-27 06:18:51,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-08-27 06:18:51,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-08-27 06:18:51,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-08-27 06:18:51,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-08-27 06:18:51,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-08-27 06:18:51,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-08-27 06:18:51,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-08-27 06:18:51,242 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-08-27 06:18:51,242 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-08-27 06:18:51,242 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-08-27 06:18:51,242 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-08-27 06:18:51,242 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-08-27 06:18:51,243 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-08-27 06:18:51,243 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-08-27 06:18:51,243 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-08-27 06:18:51,243 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-08-27 06:18:51,243 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-08-27 06:18:51,243 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-08-27 06:18:51,243 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-08-27 06:18:51,244 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-08-27 06:18:51,244 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-08-27 06:18:51,244 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-08-27 06:18:51,244 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-08-27 06:18:51,244 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-08-27 06:18:51,244 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-08-27 06:18:51,244 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-08-27 06:18:51,245 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-08-27 06:18:51,245 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-08-27 06:18:51,245 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-08-27 06:18:51,245 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-08-27 06:18:51,245 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-08-27 06:18:51,245 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-08-27 06:18:51,245 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-08-27 06:18:51,246 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-08-27 06:18:51,246 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-08-27 06:18:51,246 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-08-27 06:18:51,246 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-08-27 06:18:51,246 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-08-27 06:18:51,246 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-08-27 06:18:51,247 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-08-27 06:18:51,247 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-08-27 06:18:51,247 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-08-27 06:18:51,247 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-08-27 06:18:51,247 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-08-27 06:18:51,247 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-08-27 06:18:51,247 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-08-27 06:18:51,247 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-08-27 06:18:51,248 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-08-27 06:18:51,248 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-08-27 06:18:51,248 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-08-27 06:18:51,248 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-08-27 06:18:51,248 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-08-27 06:18:51,248 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-08-27 06:18:51,248 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-08-27 06:18:51,249 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-08-27 06:18:51,249 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-08-27 06:18:51,249 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-08-27 06:18:51,249 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-08-27 06:18:51,249 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-08-27 06:18:51,249 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-08-27 06:18:51,250 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-08-27 06:18:51,250 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-08-27 06:18:51,250 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-08-27 06:18:51,250 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-08-27 06:18:51,250 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-08-27 06:18:51,250 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-08-27 06:18:51,250 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-08-27 06:18:51,250 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-08-27 06:18:51,251 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-08-27 06:18:51,251 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-08-27 06:18:51,251 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-08-27 06:18:51,251 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-08-27 06:18:51,251 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-08-27 06:18:51,251 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-08-27 06:18:51,251 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-08-27 06:18:51,252 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-08-27 06:18:51,252 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-08-27 06:18:51,252 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-08-27 06:18:51,252 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-08-27 06:18:51,252 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-08-27 06:18:51,252 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-08-27 06:18:51,252 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-08-27 06:18:51,253 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-08-27 06:18:51,253 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-08-27 06:18:51,253 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-08-27 06:18:51,253 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-08-27 06:18:51,253 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-08-27 06:18:51,253 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-08-27 06:18:51,254 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-08-27 06:18:51,254 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-08-27 06:18:51,254 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-08-27 06:18:51,254 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-08-27 06:18:51,254 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-08-27 06:18:51,254 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-08-27 06:18:51,254 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-08-27 06:18:51,255 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-08-27 06:18:51,255 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-08-27 06:18:51,255 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-08-27 06:18:51,255 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-08-27 06:18:51,255 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-08-27 06:18:51,255 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-08-27 06:18:51,255 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-08-27 06:18:51,256 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-08-27 06:18:51,256 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-08-27 06:18:51,256 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-08-27 06:18:51,256 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-08-27 06:18:51,256 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-08-27 06:18:51,256 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-08-27 06:18:51,256 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-08-27 06:18:51,257 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-08-27 06:18:51,257 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-08-27 06:18:51,257 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-08-27 06:18:51,257 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-08-27 06:18:51,257 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-08-27 06:18:51,257 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-08-27 06:18:51,257 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-08-27 06:18:51,258 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-08-27 06:18:51,258 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-08-27 06:18:51,258 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-08-27 06:18:51,258 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-08-27 06:18:51,258 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-08-27 06:18:51,258 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-08-27 06:18:51,258 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-08-27 06:18:51,258 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-08-27 06:18:51,259 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-08-27 06:18:51,259 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-08-27 06:18:51,259 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-08-27 06:18:51,259 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-08-27 06:18:51,259 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-08-27 06:18:51,259 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-08-27 06:18:51,259 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-08-27 06:18:51,260 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-08-27 06:18:51,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-08-27 06:18:51,260 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-08-27 06:18:51,260 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-08-27 06:18:51,260 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-08-27 06:18:51,260 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-08-27 06:18:51,260 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-08-27 06:18:51,261 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-08-27 06:18:51,261 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-08-27 06:18:51,261 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-08-27 06:18:51,261 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-08-27 06:18:51,261 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-08-27 06:18:51,261 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-27 06:18:51,261 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-08-27 06:18:51,262 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-08-27 06:18:51,262 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-08-27 06:18:51,262 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-08-27 06:18:51,262 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-08-27 06:18:51,262 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-08-27 06:18:51,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-08-27 06:18:51,262 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-08-27 06:18:51,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-08-27 06:18:51,263 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-08-27 06:18:51,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-08-27 06:18:51,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-08-27 06:18:51,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-08-27 06:18:51,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-08-27 06:18:51,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-08-27 06:18:51,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-08-27 06:18:51,264 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-08-27 06:18:51,264 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-08-27 06:18:51,264 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-08-27 06:18:51,264 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-08-27 06:18:51,264 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-08-27 06:18:51,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-08-27 06:18:51,264 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-08-27 06:18:51,265 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-08-27 06:18:51,265 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-08-27 06:18:51,265 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-08-27 06:18:51,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-08-27 06:18:51,265 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 06:18:51,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-08-27 06:18:51,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 06:18:51,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-08-27 06:18:51,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-08-27 06:18:51,266 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-08-27 06:18:51,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-08-27 06:18:51,266 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-08-27 06:18:51,813 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 06:18:52,061 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 06:18:52,273 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 06:18:52,274 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-08-27 06:18:52,276 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:18:52 BoogieIcfgContainer [2021-08-27 06:18:52,276 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 06:18:52,277 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-27 06:18:52,277 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-27 06:18:52,280 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-27 06:18:52,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 06:18:50" (1/3) ... [2021-08-27 06:18:52,280 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12eb0fdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 06:18:52, skipping insertion in model container [2021-08-27 06:18:52,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:18:51" (2/3) ... [2021-08-27 06:18:52,281 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12eb0fdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 06:18:52, skipping insertion in model container [2021-08-27 06:18:52,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:18:52" (3/3) ... [2021-08-27 06:18:52,282 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test22_2-2.i [2021-08-27 06:18:52,286 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-27 06:18:52,286 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 71 error locations. [2021-08-27 06:18:52,316 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-27 06:18:52,323 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-27 06:18:52,323 INFO L340 AbstractCegarLoop]: Starting to check reachability of 71 error locations. [2021-08-27 06:18:52,347 INFO L276 IsEmpty]: Start isEmpty. Operand has 175 states, 97 states have (on average 1.4536082474226804) internal successors, (141), 132 states have internal predecessors, (141), 23 states have call successors, (23), 21 states have call predecessors, (23), 21 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2021-08-27 06:18:52,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-08-27 06:18:52,361 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:18:52,361 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:18:52,361 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_kobject_createErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:18:52,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:18:52,369 INFO L82 PathProgramCache]: Analyzing trace with hash -1536723929, now seen corresponding path program 1 times [2021-08-27 06:18:52,379 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:18:52,379 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [816771184] [2021-08-27 06:18:52,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:18:52,380 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:18:52,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:18:52,383 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:18:52,384 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-08-27 06:18:52,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:18:52,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 06:18:52,613 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:18:52,708 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-08-27 06:18:52,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:18:52,765 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:18:52,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:18:52,881 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:18:52,881 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [816771184] [2021-08-27 06:18:52,882 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [816771184] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:18:52,882 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:18:52,883 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-08-27 06:18:52,884 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031219413] [2021-08-27 06:18:52,890 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 06:18:52,891 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:18:52,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 06:18:52,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:18:52,912 INFO L87 Difference]: Start difference. First operand has 175 states, 97 states have (on average 1.4536082474226804) internal successors, (141), 132 states have internal predecessors, (141), 23 states have call successors, (23), 21 states have call predecessors, (23), 21 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-08-27 06:18:53,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:18:53,159 INFO L93 Difference]: Finished difference Result 157 states and 169 transitions. [2021-08-27 06:18:53,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 06:18:53,161 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2021-08-27 06:18:53,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:18:53,172 INFO L225 Difference]: With dead ends: 157 [2021-08-27 06:18:53,172 INFO L226 Difference]: Without dead ends: 154 [2021-08-27 06:18:53,173 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 27 SyntacticMatches, 3 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 26.1ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:18:53,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2021-08-27 06:18:53,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 148. [2021-08-27 06:18:53,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 83 states have (on average 1.3975903614457832) internal successors, (116), 109 states have internal predecessors, (116), 22 states have call successors, (22), 20 states have call predecessors, (22), 20 states have return successors, (22), 21 states have call predecessors, (22), 21 states have call successors, (22) [2021-08-27 06:18:53,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 160 transitions. [2021-08-27 06:18:53,238 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 160 transitions. Word has length 17 [2021-08-27 06:18:53,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:18:53,239 INFO L470 AbstractCegarLoop]: Abstraction has 148 states and 160 transitions. [2021-08-27 06:18:53,239 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-08-27 06:18:53,239 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 160 transitions. [2021-08-27 06:18:53,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-08-27 06:18:53,240 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:18:53,240 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:18:53,252 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-08-27 06:18:53,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:18:53,449 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_kobject_createErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:18:53,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:18:53,449 INFO L82 PathProgramCache]: Analyzing trace with hash -1536723928, now seen corresponding path program 1 times [2021-08-27 06:18:53,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:18:53,450 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [180728584] [2021-08-27 06:18:53,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:18:53,451 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:18:53,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:18:53,452 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:18:53,453 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-08-27 06:18:53,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:18:53,651 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-27 06:18:53,653 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:18:53,710 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-08-27 06:18:53,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:18:53,810 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:18:54,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:18:54,154 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:18:54,154 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [180728584] [2021-08-27 06:18:54,154 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [180728584] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:18:54,154 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:18:54,154 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-08-27 06:18:54,155 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604017395] [2021-08-27 06:18:54,156 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-27 06:18:54,156 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:18:54,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-27 06:18:54,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-08-27 06:18:54,157 INFO L87 Difference]: Start difference. First operand 148 states and 160 transitions. Second operand has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 8 states have internal predecessors, (16), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:18:54,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:18:54,701 INFO L93 Difference]: Finished difference Result 153 states and 165 transitions. [2021-08-27 06:18:54,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-27 06:18:54,704 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 8 states have internal predecessors, (16), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 17 [2021-08-27 06:18:54,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:18:54,705 INFO L225 Difference]: With dead ends: 153 [2021-08-27 06:18:54,706 INFO L226 Difference]: Without dead ends: 153 [2021-08-27 06:18:54,706 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 173.8ms TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-08-27 06:18:54,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2021-08-27 06:18:54,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 148. [2021-08-27 06:18:54,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 82 states have (on average 1.4024390243902438) internal successors, (115), 109 states have internal predecessors, (115), 22 states have call successors, (22), 20 states have call predecessors, (22), 20 states have return successors, (22), 21 states have call predecessors, (22), 21 states have call successors, (22) [2021-08-27 06:18:54,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 159 transitions. [2021-08-27 06:18:54,717 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 159 transitions. Word has length 17 [2021-08-27 06:18:54,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:18:54,717 INFO L470 AbstractCegarLoop]: Abstraction has 148 states and 159 transitions. [2021-08-27 06:18:54,717 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 8 states have internal predecessors, (16), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:18:54,718 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 159 transitions. [2021-08-27 06:18:54,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-08-27 06:18:54,718 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:18:54,718 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:18:54,724 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-08-27 06:18:54,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:18:54,919 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_kobject_createErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:18:54,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:18:54,920 INFO L82 PathProgramCache]: Analyzing trace with hash -1508094778, now seen corresponding path program 1 times [2021-08-27 06:18:54,920 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:18:54,920 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [385464398] [2021-08-27 06:18:54,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:18:54,921 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:18:54,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:18:54,923 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:18:54,924 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-08-27 06:18:55,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:18:55,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-27 06:18:55,113 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:18:55,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:18:55,229 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:18:55,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:18:55,326 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:18:55,326 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [385464398] [2021-08-27 06:18:55,326 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [385464398] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:18:55,327 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:18:55,328 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-08-27 06:18:55,328 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66435909] [2021-08-27 06:18:55,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 06:18:55,328 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:18:55,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 06:18:55,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:18:55,331 INFO L87 Difference]: Start difference. First operand 148 states and 159 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-08-27 06:18:55,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:18:55,360 INFO L93 Difference]: Finished difference Result 147 states and 156 transitions. [2021-08-27 06:18:55,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 06:18:55,360 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2021-08-27 06:18:55,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:18:55,364 INFO L225 Difference]: With dead ends: 147 [2021-08-27 06:18:55,364 INFO L226 Difference]: Without dead ends: 147 [2021-08-27 06:18:55,365 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.5ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:18:55,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2021-08-27 06:18:55,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 145. [2021-08-27 06:18:55,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 81 states have (on average 1.382716049382716) internal successors, (112), 106 states have internal predecessors, (112), 21 states have call successors, (21), 20 states have call predecessors, (21), 20 states have return successors, (21), 21 states have call predecessors, (21), 20 states have call successors, (21) [2021-08-27 06:18:55,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 154 transitions. [2021-08-27 06:18:55,380 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 154 transitions. Word has length 17 [2021-08-27 06:18:55,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:18:55,381 INFO L470 AbstractCegarLoop]: Abstraction has 145 states and 154 transitions. [2021-08-27 06:18:55,381 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-08-27 06:18:55,383 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 154 transitions. [2021-08-27 06:18:55,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-08-27 06:18:55,384 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:18:55,384 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:18:55,399 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-08-27 06:18:55,602 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:18:55,602 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_atomic_add_returnErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:18:55,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:18:55,602 INFO L82 PathProgramCache]: Analyzing trace with hash 819266671, now seen corresponding path program 1 times [2021-08-27 06:18:55,603 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:18:55,603 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1584251745] [2021-08-27 06:18:55,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:18:55,603 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:18:55,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:18:55,604 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:18:55,606 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-08-27 06:18:55,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:18:55,822 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 06:18:55,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:18:55,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:18:55,902 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:18:55,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:18:55,999 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:18:55,999 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1584251745] [2021-08-27 06:18:55,999 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1584251745] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:18:55,999 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:18:55,999 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-08-27 06:18:56,000 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786560055] [2021-08-27 06:18:56,000 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 06:18:56,000 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:18:56,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 06:18:56,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:18:56,001 INFO L87 Difference]: Start difference. First operand 145 states and 154 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:18:56,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:18:56,026 INFO L93 Difference]: Finished difference Result 147 states and 155 transitions. [2021-08-27 06:18:56,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 06:18:56,026 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 27 [2021-08-27 06:18:56,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:18:56,029 INFO L225 Difference]: With dead ends: 147 [2021-08-27 06:18:56,029 INFO L226 Difference]: Without dead ends: 147 [2021-08-27 06:18:56,029 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.1ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:18:56,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2021-08-27 06:18:56,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 145. [2021-08-27 06:18:56,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 81 states have (on average 1.3703703703703705) internal successors, (111), 106 states have internal predecessors, (111), 21 states have call successors, (21), 20 states have call predecessors, (21), 20 states have return successors, (21), 21 states have call predecessors, (21), 20 states have call successors, (21) [2021-08-27 06:18:56,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 153 transitions. [2021-08-27 06:18:56,043 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 153 transitions. Word has length 27 [2021-08-27 06:18:56,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:18:56,043 INFO L470 AbstractCegarLoop]: Abstraction has 145 states and 153 transitions. [2021-08-27 06:18:56,043 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:18:56,043 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 153 transitions. [2021-08-27 06:18:56,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-08-27 06:18:56,045 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:18:56,045 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:18:56,056 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-08-27 06:18:56,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:18:56,254 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_atomic_add_returnErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:18:56,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:18:56,254 INFO L82 PathProgramCache]: Analyzing trace with hash 308732494, now seen corresponding path program 1 times [2021-08-27 06:18:56,254 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:18:56,255 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1521764327] [2021-08-27 06:18:56,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:18:56,255 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:18:56,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:18:56,256 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:18:56,257 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-08-27 06:18:56,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:18:56,464 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 11 conjunts are in the unsatisfiable core [2021-08-27 06:18:56,465 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:18:56,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:18:56,603 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:18:56,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:18:56,745 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:18:56,745 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1521764327] [2021-08-27 06:18:56,745 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1521764327] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:18:56,745 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:18:56,745 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-08-27 06:18:56,745 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131930856] [2021-08-27 06:18:56,746 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-27 06:18:56,746 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:18:56,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-27 06:18:56,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-27 06:18:56,747 INFO L87 Difference]: Start difference. First operand 145 states and 153 transitions. Second operand has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:18:56,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:18:56,815 INFO L93 Difference]: Finished difference Result 162 states and 172 transitions. [2021-08-27 06:18:56,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-27 06:18:56,821 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 27 [2021-08-27 06:18:56,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:18:56,826 INFO L225 Difference]: With dead ends: 162 [2021-08-27 06:18:56,826 INFO L226 Difference]: Without dead ends: 162 [2021-08-27 06:18:56,826 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 51.6ms TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-08-27 06:18:56,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2021-08-27 06:18:56,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 154. [2021-08-27 06:18:56,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 87 states have (on average 1.3448275862068966) internal successors, (117), 113 states have internal predecessors, (117), 22 states have call successors, (22), 21 states have call predecessors, (22), 22 states have return successors, (23), 22 states have call predecessors, (23), 21 states have call successors, (23) [2021-08-27 06:18:56,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 162 transitions. [2021-08-27 06:18:56,839 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 162 transitions. Word has length 27 [2021-08-27 06:18:56,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:18:56,839 INFO L470 AbstractCegarLoop]: Abstraction has 154 states and 162 transitions. [2021-08-27 06:18:56,839 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:18:56,839 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 162 transitions. [2021-08-27 06:18:56,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-08-27 06:18:56,842 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:18:56,842 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:18:56,853 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-08-27 06:18:57,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:18:57,051 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_kref_initErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:18:57,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:18:57,052 INFO L82 PathProgramCache]: Analyzing trace with hash -609527379, now seen corresponding path program 1 times [2021-08-27 06:18:57,052 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:18:57,052 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2143898166] [2021-08-27 06:18:57,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:18:57,052 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:18:57,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:18:57,053 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:18:57,054 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-08-27 06:18:57,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:18:57,295 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-27 06:18:57,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:18:57,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:18:57,408 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:18:57,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:18:57,532 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:18:57,532 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2143898166] [2021-08-27 06:18:57,532 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2143898166] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:18:57,532 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:18:57,532 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-08-27 06:18:57,533 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562275647] [2021-08-27 06:18:57,533 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-27 06:18:57,533 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:18:57,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-27 06:18:57,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-08-27 06:18:57,534 INFO L87 Difference]: Start difference. First operand 154 states and 162 transitions. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-08-27 06:18:57,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:18:57,571 INFO L93 Difference]: Finished difference Result 160 states and 168 transitions. [2021-08-27 06:18:57,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-27 06:18:57,572 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 32 [2021-08-27 06:18:57,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:18:57,573 INFO L225 Difference]: With dead ends: 160 [2021-08-27 06:18:57,573 INFO L226 Difference]: Without dead ends: 156 [2021-08-27 06:18:57,573 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 29.1ms TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2021-08-27 06:18:57,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2021-08-27 06:18:57,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2021-08-27 06:18:57,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 89 states have (on average 1.3370786516853932) internal successors, (119), 115 states have internal predecessors, (119), 22 states have call successors, (22), 21 states have call predecessors, (22), 22 states have return successors, (23), 22 states have call predecessors, (23), 21 states have call successors, (23) [2021-08-27 06:18:57,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 164 transitions. [2021-08-27 06:18:57,578 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 164 transitions. Word has length 32 [2021-08-27 06:18:57,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:18:57,578 INFO L470 AbstractCegarLoop]: Abstraction has 156 states and 164 transitions. [2021-08-27 06:18:57,578 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-08-27 06:18:57,579 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 164 transitions. [2021-08-27 06:18:57,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-08-27 06:18:57,579 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:18:57,580 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:18:57,589 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-08-27 06:18:57,789 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:18:57,790 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_kref_initErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:18:57,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:18:57,790 INFO L82 PathProgramCache]: Analyzing trace with hash -1756995251, now seen corresponding path program 1 times [2021-08-27 06:18:57,790 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:18:57,791 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [285717285] [2021-08-27 06:18:57,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:18:57,791 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:18:57,791 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:18:57,792 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:18:57,793 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-08-27 06:18:58,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:18:58,037 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-27 06:18:58,039 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:18:58,157 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:18:58,157 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:18:58,374 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:18:58,374 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:18:58,374 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [285717285] [2021-08-27 06:18:58,374 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [285717285] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-27 06:18:58,375 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 06:18:58,375 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-08-27 06:18:58,376 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573012202] [2021-08-27 06:18:58,376 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-27 06:18:58,376 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:18:58,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-27 06:18:58,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-08-27 06:18:58,377 INFO L87 Difference]: Start difference. First operand 156 states and 164 transitions. Second operand has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-08-27 06:18:58,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:18:58,511 INFO L93 Difference]: Finished difference Result 164 states and 174 transitions. [2021-08-27 06:18:58,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-27 06:18:58,513 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 34 [2021-08-27 06:18:58,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:18:58,514 INFO L225 Difference]: With dead ends: 164 [2021-08-27 06:18:58,514 INFO L226 Difference]: Without dead ends: 160 [2021-08-27 06:18:58,514 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 150.6ms TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2021-08-27 06:18:58,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2021-08-27 06:18:58,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2021-08-27 06:18:58,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 93 states have (on average 1.3225806451612903) internal successors, (123), 119 states have internal predecessors, (123), 22 states have call successors, (22), 21 states have call predecessors, (22), 22 states have return successors, (23), 22 states have call predecessors, (23), 21 states have call successors, (23) [2021-08-27 06:18:58,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 168 transitions. [2021-08-27 06:18:58,519 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 168 transitions. Word has length 34 [2021-08-27 06:18:58,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:18:58,519 INFO L470 AbstractCegarLoop]: Abstraction has 160 states and 168 transitions. [2021-08-27 06:18:58,519 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-08-27 06:18:58,520 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 168 transitions. [2021-08-27 06:18:58,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-08-27 06:18:58,520 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:18:58,521 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:18:58,537 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-08-27 06:18:58,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:18:58,730 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_atomic_sub_returnErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:18:58,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:18:58,731 INFO L82 PathProgramCache]: Analyzing trace with hash -1330547251, now seen corresponding path program 1 times [2021-08-27 06:18:58,731 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:18:58,731 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1887445075] [2021-08-27 06:18:58,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:18:58,731 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:18:58,731 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:18:58,732 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:18:58,733 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-08-27 06:18:59,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:18:59,008 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 11 conjunts are in the unsatisfiable core [2021-08-27 06:18:59,010 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:18:59,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:18:59,181 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:18:59,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:18:59,361 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:18:59,361 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1887445075] [2021-08-27 06:18:59,361 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1887445075] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:18:59,362 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:18:59,362 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-08-27 06:18:59,362 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539739468] [2021-08-27 06:18:59,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-27 06:18:59,363 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:18:59,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-27 06:18:59,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-27 06:18:59,364 INFO L87 Difference]: Start difference. First operand 160 states and 168 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 5 states have internal predecessors, (22), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-08-27 06:18:59,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:18:59,415 INFO L93 Difference]: Finished difference Result 171 states and 181 transitions. [2021-08-27 06:18:59,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-27 06:18:59,415 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 5 states have internal predecessors, (22), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 36 [2021-08-27 06:18:59,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:18:59,417 INFO L225 Difference]: With dead ends: 171 [2021-08-27 06:18:59,417 INFO L226 Difference]: Without dead ends: 171 [2021-08-27 06:18:59,417 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 49.4ms TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-08-27 06:18:59,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2021-08-27 06:18:59,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 167. [2021-08-27 06:18:59,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 97 states have (on average 1.309278350515464) internal successors, (127), 123 states have internal predecessors, (127), 24 states have call successors, (24), 22 states have call predecessors, (24), 23 states have return successors, (25), 24 states have call predecessors, (25), 23 states have call successors, (25) [2021-08-27 06:18:59,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 176 transitions. [2021-08-27 06:18:59,422 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 176 transitions. Word has length 36 [2021-08-27 06:18:59,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:18:59,423 INFO L470 AbstractCegarLoop]: Abstraction has 167 states and 176 transitions. [2021-08-27 06:18:59,423 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 5 states have internal predecessors, (22), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-08-27 06:18:59,423 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 176 transitions. [2021-08-27 06:18:59,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-08-27 06:18:59,424 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:18:59,424 INFO L512 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:18:59,436 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-08-27 06:18:59,636 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:18:59,639 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_kref_initErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:18:59,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:18:59,640 INFO L82 PathProgramCache]: Analyzing trace with hash -1177798515, now seen corresponding path program 2 times [2021-08-27 06:18:59,640 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:18:59,640 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2069798288] [2021-08-27 06:18:59,640 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-27 06:18:59,640 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:18:59,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:18:59,641 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:18:59,643 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-08-27 06:18:59,922 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-08-27 06:18:59,922 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 06:18:59,925 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 11 conjunts are in the unsatisfiable core [2021-08-27 06:18:59,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:18:59,955 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 06:19:00,213 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 06:19:00,214 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:19:00,435 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 06:19:00,435 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:19:00,436 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2069798288] [2021-08-27 06:19:00,436 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2069798288] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:19:00,436 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:19:00,436 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 11 [2021-08-27 06:19:00,436 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024780718] [2021-08-27 06:19:00,437 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-08-27 06:19:00,438 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:19:00,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-27 06:19:00,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-08-27 06:19:00,438 INFO L87 Difference]: Start difference. First operand 167 states and 176 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 06:19:01,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:19:01,178 INFO L93 Difference]: Finished difference Result 190 states and 207 transitions. [2021-08-27 06:19:01,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-27 06:19:01,180 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 06:19:01,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:19:01,181 INFO L225 Difference]: With dead ends: 190 [2021-08-27 06:19:01,181 INFO L226 Difference]: Without dead ends: 190 [2021-08-27 06:19:01,182 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 55 SyntacticMatches, 10 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 223.4ms TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2021-08-27 06:19:01,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2021-08-27 06:19:01,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 166. [2021-08-27 06:19:01,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 97 states have (on average 1.2989690721649485) internal successors, (126), 122 states have internal predecessors, (126), 24 states have call successors, (24), 22 states have call predecessors, (24), 23 states have return successors, (25), 24 states have call predecessors, (25), 23 states have call successors, (25) [2021-08-27 06:19:01,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 175 transitions. [2021-08-27 06:19:01,187 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 175 transitions. Word has length 38 [2021-08-27 06:19:01,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:19:01,188 INFO L470 AbstractCegarLoop]: Abstraction has 166 states and 175 transitions. [2021-08-27 06:19:01,188 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 06:19:01,188 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 175 transitions. [2021-08-27 06:19:01,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-08-27 06:19:01,189 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:19:01,189 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 06:19:01,197 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 06:19:01,396 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 06:19:01,397 INFO L402 AbstractCegarLoop]: === Iteration 10 === 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 06:19:01,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:19:01,397 INFO L82 PathProgramCache]: Analyzing trace with hash -1177798514, now seen corresponding path program 1 times [2021-08-27 06:19:01,397 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:19:01,398 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [482726628] [2021-08-27 06:19:01,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:19:01,398 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:19:01,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:19:01,399 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 06:19:01,400 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 06:19:01,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:19:01,711 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-27 06:19:01,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:19:01,885 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 06:19:01,885 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:19:02,302 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 06:19:02,303 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:19:02,303 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [482726628] [2021-08-27 06:19:02,303 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [482726628] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-27 06:19:02,303 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 06:19:02,304 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2021-08-27 06:19:02,304 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597015299] [2021-08-27 06:19:02,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-08-27 06:19:02,304 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:19:02,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-08-27 06:19:02,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2021-08-27 06:19:02,305 INFO L87 Difference]: Start difference. First operand 166 states and 175 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 06:19:02,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:19:02,893 INFO L93 Difference]: Finished difference Result 178 states and 193 transitions. [2021-08-27 06:19:02,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-08-27 06:19:02,900 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 06:19:02,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:19:02,901 INFO L225 Difference]: With dead ends: 178 [2021-08-27 06:19:02,901 INFO L226 Difference]: Without dead ends: 174 [2021-08-27 06:19:02,902 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 652.1ms TimeCoverageRelationStatistics Valid=223, Invalid=377, Unknown=0, NotChecked=0, Total=600 [2021-08-27 06:19:02,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2021-08-27 06:19:02,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2021-08-27 06:19:02,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 105 states have (on average 1.276190476190476) internal successors, (134), 130 states have internal predecessors, (134), 24 states have call successors, (24), 22 states have call predecessors, (24), 23 states have return successors, (25), 24 states have call predecessors, (25), 23 states have call successors, (25) [2021-08-27 06:19:02,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 183 transitions. [2021-08-27 06:19:02,910 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 183 transitions. Word has length 38 [2021-08-27 06:19:02,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:19:02,912 INFO L470 AbstractCegarLoop]: Abstraction has 174 states and 183 transitions. [2021-08-27 06:19:02,912 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 06:19:02,912 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 183 transitions. [2021-08-27 06:19:02,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-08-27 06:19:02,917 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:19:02,918 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] [2021-08-27 06:19:02,928 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 06:19:03,128 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 06:19:03,128 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:19:03,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:19:03,129 INFO L82 PathProgramCache]: Analyzing trace with hash 44869055, now seen corresponding path program 1 times [2021-08-27 06:19:03,129 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:19:03,129 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1033023966] [2021-08-27 06:19:03,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:19:03,130 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:19:03,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:19:03,130 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 06:19:03,132 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 06:19:03,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:19:03,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 12 conjunts are in the unsatisfiable core [2021-08-27 06:19:03,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:19:03,594 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 06:19:03,595 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:19:03,834 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 06:19:03,834 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:19:03,834 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1033023966] [2021-08-27 06:19:03,834 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1033023966] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:19:03,834 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:19:03,834 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-08-27 06:19:03,835 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222232812] [2021-08-27 06:19:03,835 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-27 06:19:03,835 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:19:03,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 06:19:03,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 06:19:03,836 INFO L87 Difference]: Start difference. First operand 174 states and 183 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-08-27 06:19:03,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:19:03,990 INFO L93 Difference]: Finished difference Result 185 states and 194 transitions. [2021-08-27 06:19:03,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 06:19:03,991 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 39 [2021-08-27 06:19:03,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:19:03,992 INFO L225 Difference]: With dead ends: 185 [2021-08-27 06:19:03,992 INFO L226 Difference]: Without dead ends: 162 [2021-08-27 06:19:03,993 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 06:19:03,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2021-08-27 06:19:03,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 154. [2021-08-27 06:19:03,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 92 states have (on average 1.3043478260869565) internal successors, (120), 116 states have internal predecessors, (120), 21 states have call successors, (21), 20 states have call predecessors, (21), 19 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2021-08-27 06:19:03,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 161 transitions. [2021-08-27 06:19:03,998 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 161 transitions. Word has length 39 [2021-08-27 06:19:03,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:19:03,998 INFO L470 AbstractCegarLoop]: Abstraction has 154 states and 161 transitions. [2021-08-27 06:19:03,998 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-08-27 06:19:03,999 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 161 transitions. [2021-08-27 06:19:03,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-08-27 06:19:03,999 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:19:03,999 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 06:19:04,011 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Ended with exit code 0 [2021-08-27 06:19:04,208 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 06:19:04,209 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_kref_initErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:19:04,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:19:04,209 INFO L82 PathProgramCache]: Analyzing trace with hash 1122961166, now seen corresponding path program 2 times [2021-08-27 06:19:04,210 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:19:04,210 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [107256319] [2021-08-27 06:19:04,210 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-27 06:19:04,210 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:19:04,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:19:04,211 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 06:19:04,212 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 06:19:04,569 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-08-27 06:19:04,569 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 06:19:04,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 22 conjunts are in the unsatisfiable core [2021-08-27 06:19:04,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:19:04,616 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 06:19:05,021 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 06:19:05,021 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:19:05,872 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 06:19:05,873 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:19:05,873 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [107256319] [2021-08-27 06:19:05,873 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [107256319] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:19:05,873 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:19:05,873 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 11] imperfect sequences [] total 22 [2021-08-27 06:19:05,874 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681228272] [2021-08-27 06:19:05,874 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-08-27 06:19:05,874 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:19:05,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-08-27 06:19:05,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2021-08-27 06:19:05,875 INFO L87 Difference]: Start difference. First operand 154 states and 161 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 06:19:07,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:19:07,654 INFO L93 Difference]: Finished difference Result 153 states and 160 transitions. [2021-08-27 06:19:07,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-27 06:19:07,654 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 06:19:07,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:19:07,655 INFO L225 Difference]: With dead ends: 153 [2021-08-27 06:19:07,655 INFO L226 Difference]: Without dead ends: 153 [2021-08-27 06:19:07,656 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 69 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 783.6ms TimeCoverageRelationStatistics Valid=88, Invalid=614, Unknown=0, NotChecked=0, Total=702 [2021-08-27 06:19:07,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2021-08-27 06:19:07,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2021-08-27 06:19:07,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 92 states have (on average 1.2934782608695652) internal successors, (119), 115 states have internal predecessors, (119), 21 states have call successors, (21), 20 states have call predecessors, (21), 19 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2021-08-27 06:19:07,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 160 transitions. [2021-08-27 06:19:07,661 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 160 transitions. Word has length 46 [2021-08-27 06:19:07,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:19:07,662 INFO L470 AbstractCegarLoop]: Abstraction has 153 states and 160 transitions. [2021-08-27 06:19:07,662 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 06:19:07,662 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 160 transitions. [2021-08-27 06:19:07,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-08-27 06:19:07,663 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:19:07,663 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 06:19:07,671 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 06:19:07,865 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 06:19:07,865 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 06:19:07,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:19:07,865 INFO L82 PathProgramCache]: Analyzing trace with hash 1154934002, now seen corresponding path program 1 times [2021-08-27 06:19:07,866 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:19:07,866 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [690204952] [2021-08-27 06:19:07,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:19:07,866 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:19:07,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:19:07,866 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 06:19:07,867 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 06:19:08,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:19:08,286 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 17 conjunts are in the unsatisfiable core [2021-08-27 06:19:08,288 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:19:08,558 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 06:19:08,558 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:19:09,422 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 06:19:09,422 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:19:09,422 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [690204952] [2021-08-27 06:19:09,422 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [690204952] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-27 06:19:09,422 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 06:19:09,422 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 34 [2021-08-27 06:19:09,422 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339623854] [2021-08-27 06:19:09,423 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-08-27 06:19:09,423 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:19:09,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-08-27 06:19:09,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=230, Invalid=892, Unknown=0, NotChecked=0, Total=1122 [2021-08-27 06:19:09,424 INFO L87 Difference]: Start difference. First operand 153 states and 160 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 06:19:09,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:19:09,887 INFO L93 Difference]: Finished difference Result 159 states and 166 transitions. [2021-08-27 06:19:09,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-08-27 06:19:09,889 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 06:19:09,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:19:09,892 INFO L225 Difference]: With dead ends: 159 [2021-08-27 06:19:09,892 INFO L226 Difference]: Without dead ends: 155 [2021-08-27 06:19:09,893 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 694.5ms TimeCoverageRelationStatistics Valid=250, Invalid=940, Unknown=0, NotChecked=0, Total=1190 [2021-08-27 06:19:09,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2021-08-27 06:19:09,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2021-08-27 06:19:09,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 94 states have (on average 1.2872340425531914) internal successors, (121), 117 states have internal predecessors, (121), 21 states have call successors, (21), 20 states have call predecessors, (21), 19 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2021-08-27 06:19:09,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 162 transitions. [2021-08-27 06:19:09,911 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 162 transitions. Word has length 51 [2021-08-27 06:19:09,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:19:09,912 INFO L470 AbstractCegarLoop]: Abstraction has 155 states and 162 transitions. [2021-08-27 06:19:09,912 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 06:19:09,912 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 162 transitions. [2021-08-27 06:19:09,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-08-27 06:19:09,913 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:19:09,913 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 06:19:09,924 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 06:19:10,124 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 06:19:10,125 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 06:19:10,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:19:10,126 INFO L82 PathProgramCache]: Analyzing trace with hash -1486980782, now seen corresponding path program 2 times [2021-08-27 06:19:10,126 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:19:10,126 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1643959997] [2021-08-27 06:19:10,126 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-27 06:19:10,126 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:19:10,127 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:19:10,127 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 06:19:10,130 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 06:19:10,578 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-08-27 06:19:10,578 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 06:19:10,581 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 11 conjunts are in the unsatisfiable core [2021-08-27 06:19:10,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:19:10,616 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-08-27 06:19:10,910 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:19:10,911 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:19:11,138 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 06:19:11,139 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:19:11,139 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1643959997] [2021-08-27 06:19:11,139 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1643959997] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:19:11,139 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:19:11,139 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 11 [2021-08-27 06:19:11,140 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085764180] [2021-08-27 06:19:11,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-08-27 06:19:11,140 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:19:11,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-27 06:19:11,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-08-27 06:19:11,141 INFO L87 Difference]: Start difference. First operand 155 states and 162 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 06:19:11,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:19:11,782 INFO L93 Difference]: Finished difference Result 177 states and 192 transitions. [2021-08-27 06:19:11,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-27 06:19:11,783 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 06:19:11,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:19:11,784 INFO L225 Difference]: With dead ends: 177 [2021-08-27 06:19:11,784 INFO L226 Difference]: Without dead ends: 177 [2021-08-27 06:19:11,785 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 85 SyntacticMatches, 10 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 182.0ms TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2021-08-27 06:19:11,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2021-08-27 06:19:11,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 153. [2021-08-27 06:19:11,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 94 states have (on average 1.2659574468085106) internal successors, (119), 115 states have internal predecessors, (119), 21 states have call successors, (21), 20 states have call predecessors, (21), 19 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2021-08-27 06:19:11,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 160 transitions. [2021-08-27 06:19:11,790 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 160 transitions. Word has length 53 [2021-08-27 06:19:11,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:19:11,790 INFO L470 AbstractCegarLoop]: Abstraction has 153 states and 160 transitions. [2021-08-27 06:19:11,790 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 06:19:11,790 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 160 transitions. [2021-08-27 06:19:11,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-08-27 06:19:11,791 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:19:11,791 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 06:19:11,799 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-08-27 06:19:11,997 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 06:19:11,997 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 06:19:11,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:19:11,997 INFO L82 PathProgramCache]: Analyzing trace with hash -1486980781, now seen corresponding path program 1 times [2021-08-27 06:19:12,009 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:19:12,009 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1175061111] [2021-08-27 06:19:12,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:19:12,009 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:19:12,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:19:12,011 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 06:19:12,011 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 06:19:12,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:19:12,491 INFO L263 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 22 conjunts are in the unsatisfiable core [2021-08-27 06:19:12,493 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:19:12,524 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 06:19:12,916 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:19:12,916 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:19:13,728 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 06:19:13,728 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:19:13,728 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1175061111] [2021-08-27 06:19:13,728 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1175061111] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:19:13,729 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:19:13,729 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 11] imperfect sequences [] total 22 [2021-08-27 06:19:13,729 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983192139] [2021-08-27 06:19:13,729 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-08-27 06:19:13,729 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:19:13,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-08-27 06:19:13,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2021-08-27 06:19:13,730 INFO L87 Difference]: Start difference. First operand 153 states and 160 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 06:19:15,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:19:15,497 INFO L93 Difference]: Finished difference Result 151 states and 158 transitions. [2021-08-27 06:19:15,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-27 06:19:15,498 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 06:19:15,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:19:15,499 INFO L225 Difference]: With dead ends: 151 [2021-08-27 06:19:15,499 INFO L226 Difference]: Without dead ends: 151 [2021-08-27 06:19:15,499 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 81 SyntacticMatches, 3 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 735.9ms TimeCoverageRelationStatistics Valid=88, Invalid=614, Unknown=0, NotChecked=0, Total=702 [2021-08-27 06:19:15,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2021-08-27 06:19:15,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2021-08-27 06:19:15,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 94 states have (on average 1.2446808510638299) internal successors, (117), 113 states have internal predecessors, (117), 21 states have call successors, (21), 20 states have call predecessors, (21), 19 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2021-08-27 06:19:15,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 158 transitions. [2021-08-27 06:19:15,503 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 158 transitions. Word has length 53 [2021-08-27 06:19:15,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:19:15,504 INFO L470 AbstractCegarLoop]: Abstraction has 151 states and 158 transitions. [2021-08-27 06:19:15,504 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 06:19:15,504 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 158 transitions. [2021-08-27 06:19:15,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-08-27 06:19:15,505 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:19:15,505 INFO L512 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:19:15,518 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 06:19:15,715 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 06:19:15,716 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 06:19:15,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:19:15,716 INFO L82 PathProgramCache]: Analyzing trace with hash 869337392, now seen corresponding path program 1 times [2021-08-27 06:19:15,716 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:19:15,717 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1957339095] [2021-08-27 06:19:15,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:19:15,717 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:19:15,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:19:15,717 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 06:19:15,718 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 06:19:16,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:19:16,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-27 06:19:16,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:19:16,412 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 06:19:16,412 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:19:16,624 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 06:19:16,624 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:19:16,624 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1957339095] [2021-08-27 06:19:16,624 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1957339095] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:19:16,624 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:19:16,624 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 8 [2021-08-27 06:19:16,624 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44633801] [2021-08-27 06:19:16,625 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-27 06:19:16,625 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:19:16,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-27 06:19:16,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-08-27 06:19:16,626 INFO L87 Difference]: Start difference. First operand 151 states and 158 transitions. Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 7 states have internal predecessors, (28), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2021-08-27 06:19:16,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:19:16,666 INFO L93 Difference]: Finished difference Result 153 states and 159 transitions. [2021-08-27 06:19:16,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-27 06:19:16,666 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 7 states have internal predecessors, (28), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) Word has length 56 [2021-08-27 06:19:16,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:19:16,667 INFO L225 Difference]: With dead ends: 153 [2021-08-27 06:19:16,667 INFO L226 Difference]: Without dead ends: 151 [2021-08-27 06:19:16,667 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 33.5ms TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-08-27 06:19:16,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2021-08-27 06:19:16,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2021-08-27 06:19:16,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 94 states have (on average 1.2340425531914894) internal successors, (116), 112 states have internal predecessors, (116), 21 states have call successors, (21), 20 states have call predecessors, (21), 19 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2021-08-27 06:19:16,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 157 transitions. [2021-08-27 06:19:16,671 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 157 transitions. Word has length 56 [2021-08-27 06:19:16,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:19:16,672 INFO L470 AbstractCegarLoop]: Abstraction has 151 states and 157 transitions. [2021-08-27 06:19:16,672 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 7 states have internal predecessors, (28), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2021-08-27 06:19:16,672 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 157 transitions. [2021-08-27 06:19:16,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-08-27 06:19:16,673 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:19:16,673 INFO L512 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:19:16,684 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 06:19:16,883 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 06:19:16,884 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 06:19:16,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:19:16,884 INFO L82 PathProgramCache]: Analyzing trace with hash 45505149, now seen corresponding path program 1 times [2021-08-27 06:19:16,884 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:19:16,884 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1153194396] [2021-08-27 06:19:16,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:19:16,885 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:19:16,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:19:16,885 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 06:19:16,886 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 06:19:17,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:19:17,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 8 conjunts are in the unsatisfiable core [2021-08-27 06:19:17,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:19:17,636 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 06:19:17,637 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:19:17,973 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 06:19:17,973 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:19:17,973 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1153194396] [2021-08-27 06:19:17,974 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1153194396] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:19:17,974 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:19:17,974 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 11 [2021-08-27 06:19:17,974 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220994912] [2021-08-27 06:19:17,974 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-08-27 06:19:17,975 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:19:17,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-27 06:19:17,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-08-27 06:19:17,976 INFO L87 Difference]: Start difference. First operand 151 states and 157 transitions. Second operand has 11 states, 11 states have (on average 3.0) internal successors, (33), 10 states have internal predecessors, (33), 5 states have call successors, (12), 2 states have call predecessors, (12), 5 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) [2021-08-27 06:19:18,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:19:18,058 INFO L93 Difference]: Finished difference Result 155 states and 160 transitions. [2021-08-27 06:19:18,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-27 06:19:18,059 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.0) internal successors, (33), 10 states have internal predecessors, (33), 5 states have call successors, (12), 2 states have call predecessors, (12), 5 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) Word has length 61 [2021-08-27 06:19:18,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:19:18,060 INFO L225 Difference]: With dead ends: 155 [2021-08-27 06:19:18,060 INFO L226 Difference]: Without dead ends: 151 [2021-08-27 06:19:18,061 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 78.0ms TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-08-27 06:19:18,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2021-08-27 06:19:18,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2021-08-27 06:19:18,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 94 states have (on average 1.2234042553191489) internal successors, (115), 111 states have internal predecessors, (115), 21 states have call successors, (21), 20 states have call predecessors, (21), 19 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2021-08-27 06:19:18,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 156 transitions. [2021-08-27 06:19:18,068 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 156 transitions. Word has length 61 [2021-08-27 06:19:18,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:19:18,068 INFO L470 AbstractCegarLoop]: Abstraction has 151 states and 156 transitions. [2021-08-27 06:19:18,068 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.0) internal successors, (33), 10 states have internal predecessors, (33), 5 states have call successors, (12), 2 states have call predecessors, (12), 5 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) [2021-08-27 06:19:18,069 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 156 transitions. [2021-08-27 06:19:18,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-08-27 06:19:18,069 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:19:18,069 INFO L512 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:19:18,089 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 06:19:18,287 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 06:19:18,287 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 06:19:18,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:19:18,288 INFO L82 PathProgramCache]: Analyzing trace with hash -686968968, now seen corresponding path program 1 times [2021-08-27 06:19:18,288 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:19:18,289 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2097577407] [2021-08-27 06:19:18,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:19:18,289 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:19:18,289 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:19:18,290 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 06:19:18,298 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 06:19:18,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:19:18,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 14 conjunts are in the unsatisfiable core [2021-08-27 06:19:18,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:19:19,002 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 06:19:19,375 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 06:19:19,375 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:19:19,743 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 06:19:19,743 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:19:19,743 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2097577407] [2021-08-27 06:19:19,743 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2097577407] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:19:19,743 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:19:19,743 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14, 13] imperfect sequences [] total 14 [2021-08-27 06:19:19,745 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742103580] [2021-08-27 06:19:19,745 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-08-27 06:19:19,745 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:19:19,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-08-27 06:19:19,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2021-08-27 06:19:19,746 INFO L87 Difference]: Start difference. First operand 151 states and 156 transitions. Second operand has 15 states, 12 states have (on average 4.5) internal successors, (54), 10 states have internal predecessors, (54), 6 states have call successors, (18), 5 states have call predecessors, (18), 4 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) [2021-08-27 06:19:20,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:19:20,489 INFO L93 Difference]: Finished difference Result 173 states and 186 transitions. [2021-08-27 06:19:20,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-08-27 06:19:20,490 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 12 states have (on average 4.5) internal successors, (54), 10 states have internal predecessors, (54), 6 states have call successors, (18), 5 states have call predecessors, (18), 4 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) Word has length 72 [2021-08-27 06:19:20,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:19:20,491 INFO L225 Difference]: With dead ends: 173 [2021-08-27 06:19:20,491 INFO L226 Difference]: Without dead ends: 173 [2021-08-27 06:19:20,491 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 119 SyntacticMatches, 11 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 235.2ms TimeCoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2021-08-27 06:19:20,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2021-08-27 06:19:20,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 149. [2021-08-27 06:19:20,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 94 states have (on average 1.202127659574468) internal successors, (113), 109 states have internal predecessors, (113), 21 states have call successors, (21), 20 states have call predecessors, (21), 19 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2021-08-27 06:19:20,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 154 transitions. [2021-08-27 06:19:20,496 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 154 transitions. Word has length 72 [2021-08-27 06:19:20,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:19:20,496 INFO L470 AbstractCegarLoop]: Abstraction has 149 states and 154 transitions. [2021-08-27 06:19:20,496 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 12 states have (on average 4.5) internal successors, (54), 10 states have internal predecessors, (54), 6 states have call successors, (18), 5 states have call predecessors, (18), 4 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) [2021-08-27 06:19:20,497 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 154 transitions. [2021-08-27 06:19:20,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-08-27 06:19:20,497 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:19:20,497 INFO L512 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:19:20,506 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Ended with exit code 0 [2021-08-27 06:19:20,700 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 06:19:20,701 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 06:19:20,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:19:20,701 INFO L82 PathProgramCache]: Analyzing trace with hash -686968967, now seen corresponding path program 1 times [2021-08-27 06:19:20,706 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:19:20,707 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2066350645] [2021-08-27 06:19:20,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:19:20,707 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:19:20,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:19:20,708 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 06:19:20,710 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 06:19:21,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:19:21,466 INFO L263 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 28 conjunts are in the unsatisfiable core [2021-08-27 06:19:21,468 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:19:21,503 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 06:19:22,021 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 06:19:22,021 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:19:23,246 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 06:19:23,246 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:19:23,246 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2066350645] [2021-08-27 06:19:23,246 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2066350645] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:19:23,246 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:19:23,246 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15, 14] imperfect sequences [] total 28 [2021-08-27 06:19:23,246 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316364560] [2021-08-27 06:19:23,247 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-08-27 06:19:23,247 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:19:23,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-08-27 06:19:23,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=733, Unknown=0, NotChecked=0, Total=812 [2021-08-27 06:19:23,248 INFO L87 Difference]: Start difference. First operand 149 states and 154 transitions. Second operand has 29 states, 24 states have (on average 2.8333333333333335) internal successors, (68), 19 states have internal predecessors, (68), 10 states have call successors, (21), 8 states have call predecessors, (21), 6 states have return successors, (15), 8 states have call predecessors, (15), 4 states have call successors, (15) [2021-08-27 06:19:25,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:19:25,595 INFO L93 Difference]: Finished difference Result 147 states and 152 transitions. [2021-08-27 06:19:25,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-08-27 06:19:25,595 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 24 states have (on average 2.8333333333333335) internal successors, (68), 19 states have internal predecessors, (68), 10 states have call successors, (21), 8 states have call predecessors, (21), 6 states have return successors, (15), 8 states have call predecessors, (15), 4 states have call successors, (15) Word has length 72 [2021-08-27 06:19:25,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:19:25,599 INFO L225 Difference]: With dead ends: 147 [2021-08-27 06:19:25,599 INFO L226 Difference]: Without dead ends: 147 [2021-08-27 06:19:25,599 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 113 SyntacticMatches, 3 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 1150.6ms TimeCoverageRelationStatistics Valid=113, Invalid=1009, Unknown=0, NotChecked=0, Total=1122 [2021-08-27 06:19:25,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2021-08-27 06:19:25,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2021-08-27 06:19:25,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 94 states have (on average 1.1808510638297873) internal successors, (111), 107 states have internal predecessors, (111), 21 states have call successors, (21), 20 states have call predecessors, (21), 19 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2021-08-27 06:19:25,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 152 transitions. [2021-08-27 06:19:25,602 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 152 transitions. Word has length 72 [2021-08-27 06:19:25,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:19:25,603 INFO L470 AbstractCegarLoop]: Abstraction has 147 states and 152 transitions. [2021-08-27 06:19:25,603 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 24 states have (on average 2.8333333333333335) internal successors, (68), 19 states have internal predecessors, (68), 10 states have call successors, (21), 8 states have call predecessors, (21), 6 states have return successors, (15), 8 states have call predecessors, (15), 4 states have call successors, (15) [2021-08-27 06:19:25,603 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 152 transitions. [2021-08-27 06:19:25,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-08-27 06:19:25,604 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:19:25,604 INFO L512 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:19:25,615 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 06:19:25,812 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 06:19:25,813 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 06:19:25,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:19:25,813 INFO L82 PathProgramCache]: Analyzing trace with hash -1435641885, now seen corresponding path program 1 times [2021-08-27 06:19:25,813 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:19:25,813 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [627702561] [2021-08-27 06:19:25,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:19:25,814 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:19:25,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:19:25,815 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 06:19:25,821 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 06:19:26,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:19:26,551 INFO L263 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-27 06:19:26,553 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:19:26,780 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 06:19:26,780 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:19:27,088 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:19:27,088 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:19:27,088 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [627702561] [2021-08-27 06:19:27,088 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [627702561] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:19:27,088 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:19:27,088 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 11 [2021-08-27 06:19:27,089 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769340298] [2021-08-27 06:19:27,089 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-08-27 06:19:27,089 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:19:27,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-27 06:19:27,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-08-27 06:19:27,090 INFO L87 Difference]: Start difference. First operand 147 states and 152 transitions. Second operand has 11 states, 10 states have (on average 4.4) internal successors, (44), 9 states have internal predecessors, (44), 4 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (9), 5 states have call predecessors, (9), 3 states have call successors, (9) [2021-08-27 06:19:27,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:19:27,152 INFO L93 Difference]: Finished difference Result 150 states and 154 transitions. [2021-08-27 06:19:27,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-27 06:19:27,152 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 4.4) internal successors, (44), 9 states have internal predecessors, (44), 4 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (9), 5 states have call predecessors, (9), 3 states have call successors, (9) Word has length 81 [2021-08-27 06:19:27,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:19:27,153 INFO L225 Difference]: With dead ends: 150 [2021-08-27 06:19:27,153 INFO L226 Difference]: Without dead ends: 147 [2021-08-27 06:19:27,153 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 67.7ms TimeCoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-08-27 06:19:27,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2021-08-27 06:19:27,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2021-08-27 06:19:27,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 94 states have (on average 1.1702127659574468) internal successors, (110), 106 states have internal predecessors, (110), 21 states have call successors, (21), 20 states have call predecessors, (21), 19 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2021-08-27 06:19:27,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 151 transitions. [2021-08-27 06:19:27,156 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 151 transitions. Word has length 81 [2021-08-27 06:19:27,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:19:27,157 INFO L470 AbstractCegarLoop]: Abstraction has 147 states and 151 transitions. [2021-08-27 06:19:27,157 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 4.4) internal successors, (44), 9 states have internal predecessors, (44), 4 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (9), 5 states have call predecessors, (9), 3 states have call successors, (9) [2021-08-27 06:19:27,157 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 151 transitions. [2021-08-27 06:19:27,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-27 06:19:27,158 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:19:27,158 INFO L512 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:19:27,169 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 06:19:27,364 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 06:19:27,365 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 06:19:27,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:19:27,365 INFO L82 PathProgramCache]: Analyzing trace with hash -1591381372, now seen corresponding path program 1 times [2021-08-27 06:19:27,365 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:19:27,365 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [629525622] [2021-08-27 06:19:27,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:19:27,366 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:19:27,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:19:27,366 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 06:19:27,368 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 06:19:28,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:19:28,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 22 conjunts are in the unsatisfiable core [2021-08-27 06:19:28,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:19:28,204 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 06:19:28,733 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 06:19:28,733 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:19:29,159 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 06:19:29,159 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:19:29,159 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [629525622] [2021-08-27 06:19:29,159 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [629525622] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:19:29,159 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:19:29,159 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16, 15] imperfect sequences [] total 16 [2021-08-27 06:19:29,160 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577488079] [2021-08-27 06:19:29,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-08-27 06:19:29,160 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:19:29,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-08-27 06:19:29,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2021-08-27 06:19:29,161 INFO L87 Difference]: Start difference. First operand 147 states and 151 transitions. Second operand has 17 states, 14 states have (on average 5.857142857142857) internal successors, (82), 11 states have internal predecessors, (82), 7 states have call successors, (25), 6 states have call predecessors, (25), 4 states have return successors, (19), 6 states have call predecessors, (19), 4 states have call successors, (19) [2021-08-27 06:19:30,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:19:30,234 INFO L93 Difference]: Finished difference Result 198 states and 218 transitions. [2021-08-27 06:19:30,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-08-27 06:19:30,234 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 14 states have (on average 5.857142857142857) internal successors, (82), 11 states have internal predecessors, (82), 7 states have call successors, (25), 6 states have call predecessors, (25), 4 states have return successors, (19), 6 states have call predecessors, (19), 4 states have call successors, (19) Word has length 94 [2021-08-27 06:19:30,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:19:30,235 INFO L225 Difference]: With dead ends: 198 [2021-08-27 06:19:30,236 INFO L226 Difference]: Without dead ends: 198 [2021-08-27 06:19:30,236 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 155 SyntacticMatches, 17 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 353.0ms TimeCoverageRelationStatistics Valid=70, Invalid=392, Unknown=0, NotChecked=0, Total=462 [2021-08-27 06:19:30,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2021-08-27 06:19:30,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 174. [2021-08-27 06:19:30,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 112 states have (on average 1.1696428571428572) internal successors, (131), 125 states have internal predecessors, (131), 25 states have call successors, (25), 24 states have call predecessors, (25), 25 states have return successors, (30), 24 states have call predecessors, (30), 24 states have call successors, (30) [2021-08-27 06:19:30,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 186 transitions. [2021-08-27 06:19:30,242 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 186 transitions. Word has length 94 [2021-08-27 06:19:30,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:19:30,242 INFO L470 AbstractCegarLoop]: Abstraction has 174 states and 186 transitions. [2021-08-27 06:19:30,242 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 14 states have (on average 5.857142857142857) internal successors, (82), 11 states have internal predecessors, (82), 7 states have call successors, (25), 6 states have call predecessors, (25), 4 states have return successors, (19), 6 states have call predecessors, (19), 4 states have call successors, (19) [2021-08-27 06:19:30,243 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 186 transitions. [2021-08-27 06:19:30,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-27 06:19:30,243 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:19:30,244 INFO L512 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:19:30,259 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 06:19:30,459 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 06:19:30,459 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 06:19:30,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:19:30,460 INFO L82 PathProgramCache]: Analyzing trace with hash -1591381371, now seen corresponding path program 1 times [2021-08-27 06:19:30,460 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:19:30,460 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [451913843] [2021-08-27 06:19:30,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:19:30,460 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:19:30,461 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:19:30,469 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 06:19:30,469 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 06:19:31,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:19:31,355 INFO L263 TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 32 conjunts are in the unsatisfiable core [2021-08-27 06:19:31,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:19:31,392 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-08-27 06:19:32,095 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 06:19:32,095 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:19:33,645 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 06:19:33,645 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:19:33,645 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [451913843] [2021-08-27 06:19:33,646 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [451913843] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:19:33,646 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:19:33,646 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17, 16] imperfect sequences [] total 32 [2021-08-27 06:19:33,646 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553686157] [2021-08-27 06:19:33,646 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-08-27 06:19:33,646 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:19:33,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-08-27 06:19:33,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=965, Unknown=0, NotChecked=0, Total=1056 [2021-08-27 06:19:33,647 INFO L87 Difference]: Start difference. First operand 174 states and 186 transitions. Second operand has 33 states, 28 states have (on average 3.5) internal successors, (98), 21 states have internal predecessors, (98), 12 states have call successors, (29), 10 states have call predecessors, (29), 6 states have return successors, (21), 10 states have call predecessors, (21), 6 states have call successors, (21) [2021-08-27 06:19:36,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:19:36,282 INFO L93 Difference]: Finished difference Result 172 states and 182 transitions. [2021-08-27 06:19:36,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-08-27 06:19:36,283 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 28 states have (on average 3.5) internal successors, (98), 21 states have internal predecessors, (98), 12 states have call successors, (29), 10 states have call predecessors, (29), 6 states have return successors, (21), 10 states have call predecessors, (21), 6 states have call successors, (21) Word has length 94 [2021-08-27 06:19:36,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:19:36,284 INFO L225 Difference]: With dead ends: 172 [2021-08-27 06:19:36,284 INFO L226 Difference]: Without dead ends: 172 [2021-08-27 06:19:36,284 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 151 SyntacticMatches, 5 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 330 ImplicationChecksByTransitivity, 1505.5ms TimeCoverageRelationStatistics Valid=132, Invalid=1350, Unknown=0, NotChecked=0, Total=1482 [2021-08-27 06:19:36,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2021-08-27 06:19:36,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2021-08-27 06:19:36,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 112 states have (on average 1.1339285714285714) internal successors, (127), 123 states have internal predecessors, (127), 25 states have call successors, (25), 24 states have call predecessors, (25), 25 states have return successors, (30), 24 states have call predecessors, (30), 24 states have call successors, (30) [2021-08-27 06:19:36,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 182 transitions. [2021-08-27 06:19:36,289 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 182 transitions. Word has length 94 [2021-08-27 06:19:36,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:19:36,289 INFO L470 AbstractCegarLoop]: Abstraction has 172 states and 182 transitions. [2021-08-27 06:19:36,290 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 28 states have (on average 3.5) internal successors, (98), 21 states have internal predecessors, (98), 12 states have call successors, (29), 10 states have call predecessors, (29), 6 states have return successors, (21), 10 states have call predecessors, (21), 6 states have call successors, (21) [2021-08-27 06:19:36,290 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 182 transitions. [2021-08-27 06:19:36,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-08-27 06:19:36,291 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:19:36,291 INFO L512 BasicCegarLoop]: trace histogram [16, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:19:36,311 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2021-08-27 06:19:36,504 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:19:36,504 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:19:36,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:19:36,505 INFO L82 PathProgramCache]: Analyzing trace with hash -868591192, now seen corresponding path program 1 times [2021-08-27 06:19:36,505 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:19:36,505 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1901311898] [2021-08-27 06:19:36,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:19:36,506 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:19:36,506 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:19:36,507 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:19:36,509 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-08-27 06:19:37,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:19:37,433 INFO L263 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-27 06:19:37,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:19:37,692 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:19:37,692 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:19:38,150 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2021-08-27 06:19:38,150 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:19:38,151 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1901311898] [2021-08-27 06:19:38,151 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1901311898] provided 1 perfect and 1 imperfect interpolant sequences [2021-08-27 06:19:38,151 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-27 06:19:38,151 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 11 [2021-08-27 06:19:38,151 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898587127] [2021-08-27 06:19:38,151 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-27 06:19:38,152 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:19:38,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-27 06:19:38,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-08-27 06:19:38,152 INFO L87 Difference]: Start difference. First operand 172 states and 182 transitions. Second operand has 10 states, 10 states have (on average 5.3) internal successors, (53), 8 states have internal predecessors, (53), 4 states have call successors, (15), 2 states have call predecessors, (15), 5 states have return successors, (14), 6 states have call predecessors, (14), 4 states have call successors, (14) [2021-08-27 06:19:38,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:19:38,235 INFO L93 Difference]: Finished difference Result 173 states and 179 transitions. [2021-08-27 06:19:38,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-27 06:19:38,237 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 8 states have internal predecessors, (53), 4 states have call successors, (15), 2 states have call predecessors, (15), 5 states have return successors, (14), 6 states have call predecessors, (14), 4 states have call successors, (14) Word has length 97 [2021-08-27 06:19:38,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:19:38,239 INFO L225 Difference]: With dead ends: 173 [2021-08-27 06:19:38,239 INFO L226 Difference]: Without dead ends: 169 [2021-08-27 06:19:38,239 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 73.9ms TimeCoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-08-27 06:19:38,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2021-08-27 06:19:38,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2021-08-27 06:19:38,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 111 states have (on average 1.117117117117117) internal successors, (124), 121 states have internal predecessors, (124), 24 states have call successors, (24), 24 states have call predecessors, (24), 24 states have return successors, (27), 23 states have call predecessors, (27), 23 states have call successors, (27) [2021-08-27 06:19:38,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 175 transitions. [2021-08-27 06:19:38,249 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 175 transitions. Word has length 97 [2021-08-27 06:19:38,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:19:38,249 INFO L470 AbstractCegarLoop]: Abstraction has 169 states and 175 transitions. [2021-08-27 06:19:38,249 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 8 states have internal predecessors, (53), 4 states have call successors, (15), 2 states have call predecessors, (15), 5 states have return successors, (14), 6 states have call predecessors, (14), 4 states have call successors, (14) [2021-08-27 06:19:38,250 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 175 transitions. [2021-08-27 06:19:38,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-08-27 06:19:38,251 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:19:38,251 INFO L512 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:19:38,264 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2021-08-27 06:19:38,463 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:19:38,464 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_kobject_cleanupErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:19:38,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:19:38,464 INFO L82 PathProgramCache]: Analyzing trace with hash -1941158107, now seen corresponding path program 1 times [2021-08-27 06:19:38,465 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:19:38,465 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2089214854] [2021-08-27 06:19:38,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:19:38,465 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:19:38,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:19:38,466 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:19:38,466 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2021-08-27 06:19:39,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:19:39,534 INFO L263 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 34 conjunts are in the unsatisfiable core [2021-08-27 06:19:39,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:19:39,560 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 06:19:40,203 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 06:19:40,203 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:19:40,706 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 06:19:40,706 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:19:40,706 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2089214854] [2021-08-27 06:19:40,706 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2089214854] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:19:40,706 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:19:40,707 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20, 19] imperfect sequences [] total 20 [2021-08-27 06:19:40,707 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910076855] [2021-08-27 06:19:40,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-08-27 06:19:40,707 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:19:40,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-08-27 06:19:40,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2021-08-27 06:19:40,709 INFO L87 Difference]: Start difference. First operand 169 states and 175 transitions. Second operand has 21 states, 17 states have (on average 5.705882352941177) internal successors, (97), 13 states have internal predecessors, (97), 9 states have call successors, (29), 8 states have call predecessors, (29), 4 states have return successors, (21), 7 states have call predecessors, (21), 5 states have call successors, (21) [2021-08-27 06:19:41,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:19:41,947 INFO L93 Difference]: Finished difference Result 200 states and 216 transitions. [2021-08-27 06:19:41,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-08-27 06:19:41,947 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 17 states have (on average 5.705882352941177) internal successors, (97), 13 states have internal predecessors, (97), 9 states have call successors, (29), 8 states have call predecessors, (29), 4 states have return successors, (21), 7 states have call predecessors, (21), 5 states have call successors, (21) Word has length 107 [2021-08-27 06:19:41,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:19:41,948 INFO L225 Difference]: With dead ends: 200 [2021-08-27 06:19:41,948 INFO L226 Difference]: Without dead ends: 200 [2021-08-27 06:19:41,949 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 175 SyntacticMatches, 19 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 513.9ms TimeCoverageRelationStatistics Valid=92, Invalid=664, Unknown=0, NotChecked=0, Total=756 [2021-08-27 06:19:41,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2021-08-27 06:19:41,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 175. [2021-08-27 06:19:41,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 115 states have (on average 1.1130434782608696) internal successors, (128), 124 states have internal predecessors, (128), 27 states have call successors, (27), 27 states have call predecessors, (27), 24 states have return successors, (30), 23 states have call predecessors, (30), 26 states have call successors, (30) [2021-08-27 06:19:41,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 185 transitions. [2021-08-27 06:19:41,954 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 185 transitions. Word has length 107 [2021-08-27 06:19:41,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:19:41,954 INFO L470 AbstractCegarLoop]: Abstraction has 175 states and 185 transitions. [2021-08-27 06:19:41,955 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 17 states have (on average 5.705882352941177) internal successors, (97), 13 states have internal predecessors, (97), 9 states have call successors, (29), 8 states have call predecessors, (29), 4 states have return successors, (21), 7 states have call predecessors, (21), 5 states have call successors, (21) [2021-08-27 06:19:41,955 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 185 transitions. [2021-08-27 06:19:41,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-08-27 06:19:41,955 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:19:41,956 INFO L512 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:19:41,977 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 06:19:42,169 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:19:42,170 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_kobject_cleanupErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:19:42,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:19:42,170 INFO L82 PathProgramCache]: Analyzing trace with hash -1941158106, now seen corresponding path program 1 times [2021-08-27 06:19:42,171 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:19:42,171 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2000868014] [2021-08-27 06:19:42,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:19:42,171 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:19:42,171 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:19:42,172 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:19:42,172 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2021-08-27 06:19:43,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:19:43,322 INFO L263 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 44 conjunts are in the unsatisfiable core [2021-08-27 06:19:43,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:19:43,354 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-08-27 06:19:44,262 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 06:19:44,262 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:19:46,372 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 06:19:46,372 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:19:46,372 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2000868014] [2021-08-27 06:19:46,373 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2000868014] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:19:46,373 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:19:46,373 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21, 20] imperfect sequences [] total 40 [2021-08-27 06:19:46,373 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111873384] [2021-08-27 06:19:46,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2021-08-27 06:19:46,374 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:19:46,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-08-27 06:19:46,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=1525, Unknown=0, NotChecked=0, Total=1640 [2021-08-27 06:19:46,375 INFO L87 Difference]: Start difference. First operand 175 states and 185 transitions. Second operand has 41 states, 34 states have (on average 3.411764705882353) internal successors, (116), 25 states have internal predecessors, (116), 16 states have call successors, (35), 14 states have call predecessors, (35), 6 states have return successors, (23), 12 states have call predecessors, (23), 8 states have call successors, (23) [2021-08-27 06:19:49,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:19:49,949 INFO L93 Difference]: Finished difference Result 173 states and 182 transitions. [2021-08-27 06:19:49,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-08-27 06:19:49,949 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 34 states have (on average 3.411764705882353) internal successors, (116), 25 states have internal predecessors, (116), 16 states have call successors, (35), 14 states have call predecessors, (35), 6 states have return successors, (23), 12 states have call predecessors, (23), 8 states have call successors, (23) Word has length 107 [2021-08-27 06:19:49,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:19:49,950 INFO L225 Difference]: With dead ends: 173 [2021-08-27 06:19:49,951 INFO L226 Difference]: Without dead ends: 173 [2021-08-27 06:19:49,951 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 167 SyntacticMatches, 7 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 551 ImplicationChecksByTransitivity, 2296.9ms TimeCoverageRelationStatistics Valid=170, Invalid=2182, Unknown=0, NotChecked=0, Total=2352 [2021-08-27 06:19:49,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2021-08-27 06:19:49,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2021-08-27 06:19:49,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 115 states have (on average 1.0869565217391304) internal successors, (125), 122 states have internal predecessors, (125), 27 states have call successors, (27), 27 states have call predecessors, (27), 24 states have return successors, (30), 23 states have call predecessors, (30), 26 states have call successors, (30) [2021-08-27 06:19:49,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 182 transitions. [2021-08-27 06:19:49,955 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 182 transitions. Word has length 107 [2021-08-27 06:19:49,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:19:49,955 INFO L470 AbstractCegarLoop]: Abstraction has 173 states and 182 transitions. [2021-08-27 06:19:49,955 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 34 states have (on average 3.411764705882353) internal successors, (116), 25 states have internal predecessors, (116), 16 states have call successors, (35), 14 states have call predecessors, (35), 6 states have return successors, (23), 12 states have call predecessors, (23), 8 states have call successors, (23) [2021-08-27 06:19:49,955 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 182 transitions. [2021-08-27 06:19:49,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-08-27 06:19:49,956 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:19:49,956 INFO L512 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:19:49,973 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2021-08-27 06:19:50,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:19:50,165 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:19:50,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:19:50,165 INFO L82 PathProgramCache]: Analyzing trace with hash -1601225112, now seen corresponding path program 1 times [2021-08-27 06:19:50,166 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:19:50,166 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2072810948] [2021-08-27 06:19:50,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:19:50,166 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:19:50,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:19:50,166 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:19:50,167 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2021-08-27 06:19:51,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:19:51,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 23 conjunts are in the unsatisfiable core [2021-08-27 06:19:51,393 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:19:52,757 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 06:19:52,757 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:19:53,648 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 06:19:53,648 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:19:53,648 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2072810948] [2021-08-27 06:19:53,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2072810948] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:19:53,648 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:19:53,649 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21, 19] imperfect sequences [] total 39 [2021-08-27 06:19:53,649 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955104059] [2021-08-27 06:19:53,649 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2021-08-27 06:19:53,649 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:19:53,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-08-27 06:19:53,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=1410, Unknown=0, NotChecked=0, Total=1560 [2021-08-27 06:19:53,651 INFO L87 Difference]: Start difference. First operand 173 states and 182 transitions. Second operand has 40 states, 33 states have (on average 3.8181818181818183) internal successors, (126), 24 states have internal predecessors, (126), 17 states have call successors, (39), 15 states have call predecessors, (39), 7 states have return successors, (24), 13 states have call predecessors, (24), 9 states have call successors, (24) [2021-08-27 06:19:55,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:19:55,150 INFO L93 Difference]: Finished difference Result 172 states and 181 transitions. [2021-08-27 06:19:55,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-08-27 06:19:55,150 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 33 states have (on average 3.8181818181818183) internal successors, (126), 24 states have internal predecessors, (126), 17 states have call successors, (39), 15 states have call predecessors, (39), 7 states have return successors, (24), 13 states have call predecessors, (24), 9 states have call successors, (24) Word has length 110 [2021-08-27 06:19:55,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:19:55,151 INFO L225 Difference]: With dead ends: 172 [2021-08-27 06:19:55,151 INFO L226 Difference]: Without dead ends: 172 [2021-08-27 06:19:55,152 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 174 SyntacticMatches, 7 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 495 ImplicationChecksByTransitivity, 1296.5ms TimeCoverageRelationStatistics Valid=206, Invalid=1956, Unknown=0, NotChecked=0, Total=2162 [2021-08-27 06:19:55,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2021-08-27 06:19:55,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2021-08-27 06:19:55,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 115 states have (on average 1.0782608695652174) internal successors, (124), 121 states have internal predecessors, (124), 27 states have call successors, (27), 27 states have call predecessors, (27), 24 states have return successors, (30), 23 states have call predecessors, (30), 26 states have call successors, (30) [2021-08-27 06:19:55,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 181 transitions. [2021-08-27 06:19:55,155 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 181 transitions. Word has length 110 [2021-08-27 06:19:55,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:19:55,156 INFO L470 AbstractCegarLoop]: Abstraction has 172 states and 181 transitions. [2021-08-27 06:19:55,156 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 33 states have (on average 3.8181818181818183) internal successors, (126), 24 states have internal predecessors, (126), 17 states have call successors, (39), 15 states have call predecessors, (39), 7 states have return successors, (24), 13 states have call predecessors, (24), 9 states have call successors, (24) [2021-08-27 06:19:55,156 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 181 transitions. [2021-08-27 06:19:55,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-08-27 06:19:55,157 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:19:55,157 INFO L512 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:19:55,172 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 06:19:55,372 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:19:55,372 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:19:55,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:19:55,372 INFO L82 PathProgramCache]: Analyzing trace with hash 2104777833, now seen corresponding path program 1 times [2021-08-27 06:19:55,373 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:19:55,373 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [26270875] [2021-08-27 06:19:55,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:19:55,373 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:19:55,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:19:55,374 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:19:55,375 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2021-08-27 06:19:56,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:19:56,789 INFO L263 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 86 conjunts are in the unsatisfiable core [2021-08-27 06:19:56,792 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:19:56,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:56,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:56,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:56,983 INFO L173 IndexEqualityManager]: detected equality via solver [2021-08-27 06:19:56,984 INFO L173 IndexEqualityManager]: detected equality via solver [2021-08-27 06:19:57,024 INFO L354 Elim1Store]: treesize reduction 166, result has 13.5 percent of original size [2021-08-27 06:19:57,024 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 30 treesize of output 36 [2021-08-27 06:19:59,262 WARN L860 $PredicateComparison]: unable to prove that (exists ((v_DerPreprocessor_1 (_ BitVec 8))) (= (store |c_old(#memory_int)| |c_LDV_INIT_LIST_HEAD_#in~list.base| (let ((.cse0 (bvadd (_ bv4 32) |c_LDV_INIT_LIST_HEAD_#in~list.offset|))) (store (store (select |c_old(#memory_int)| |c_LDV_INIT_LIST_HEAD_#in~list.base|) |c_LDV_INIT_LIST_HEAD_#in~list.offset| v_DerPreprocessor_1) .cse0 (select (select |c_#memory_int| |c_LDV_INIT_LIST_HEAD_#in~list.base|) .cse0)))) |c_#memory_int|)) is different from true [2021-08-27 06:19:59,416 INFO L354 Elim1Store]: treesize reduction 360, result has 11.3 percent of original size [2021-08-27 06:19:59,417 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 06:20:01,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:01,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:01,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:01,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:01,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:01,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:01,061 INFO L173 IndexEqualityManager]: detected equality via solver [2021-08-27 06:20:01,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:01,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:01,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:01,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:01,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:01,065 INFO L173 IndexEqualityManager]: detected equality via solver [2021-08-27 06:20:01,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:01,066 INFO L173 IndexEqualityManager]: detected equality via solver [2021-08-27 06:20:01,067 INFO L173 IndexEqualityManager]: detected equality via solver [2021-08-27 06:20:01,076 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-27 06:20:01,076 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 06:20:02,516 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-27 06:20:02,517 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 06:20:02,616 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 06:20:02,616 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:20:06,169 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1172 treesize of output 1062 [2021-08-27 06:20:06,188 INFO L354 Elim1Store]: treesize reduction 72, result has 1.4 percent of original size [2021-08-27 06:20:06,189 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 33149 treesize of output 16765 [2021-08-27 06:20:27,933 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ldv_kobject_get_#in~kobj.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ldv_kobject_get_#in~kobj.offset_BEFORE_CALL_2| (_ BitVec 32))) (let ((.cse1 (bvadd |v_ldv_kobject_get_#in~kobj.offset_BEFORE_CALL_2| (_ bv15 32))) (.cse2 (bvadd |v_ldv_kobject_get_#in~kobj.offset_BEFORE_CALL_2| (_ bv14 32))) (.cse3 (bvadd |v_ldv_kobject_get_#in~kobj.offset_BEFORE_CALL_2| (_ bv13 32))) (.cse4 (bvadd |v_ldv_kobject_get_#in~kobj.offset_BEFORE_CALL_2| (_ bv12 32)))) (or (not (= (_ bv1 32) (let ((.cse0 (select (store |c_#memory_int| c_ldv_kref_get_~kref.base (let ((.cse9 (bvadd c_ldv_kref_get_~kref.offset (_ bv3 32))) (.cse8 (bvadd c_ldv_kref_get_~kref.offset (_ bv2 32))) (.cse7 (bvadd c_ldv_kref_get_~kref.offset (_ bv1 32))) (.cse5 (select |c_#memory_int| c_ldv_kref_get_~kref.base))) (let ((.cse6 (bvadd (concat (concat (concat (select .cse5 .cse9) (select .cse5 .cse8)) (select .cse5 .cse7)) (select .cse5 c_ldv_kref_get_~kref.offset)) (_ bv1 32)))) (store (store (store (store .cse5 c_ldv_kref_get_~kref.offset ((_ extract 7 0) .cse6)) .cse7 ((_ extract 15 8) .cse6)) .cse8 ((_ extract 23 16) .cse6)) .cse9 ((_ extract 31 24) .cse6))))) |v_ldv_kobject_get_#in~kobj.base_BEFORE_CALL_2|))) (concat (concat (concat (select .cse0 .cse1) (select .cse0 .cse2)) (select .cse0 .cse3)) (select .cse0 .cse4))))) (= (let ((.cse10 (select (store |c_old(#memory_int)| |c_ldv_kref_get_#in~kref.base| (let ((.cse15 (bvadd |c_ldv_kref_get_#in~kref.offset| (_ bv3 32))) (.cse14 (bvadd |c_ldv_kref_get_#in~kref.offset| (_ bv2 32))) (.cse13 (bvadd |c_ldv_kref_get_#in~kref.offset| (_ bv1 32))) (.cse11 (select |c_old(#memory_int)| |c_ldv_kref_get_#in~kref.base|))) (let ((.cse12 (bvadd (_ bv1 32) (concat (concat (concat (select .cse11 .cse15) (select .cse11 .cse14)) (select .cse11 .cse13)) (select .cse11 |c_ldv_kref_get_#in~kref.offset|))))) (store (store (store (store .cse11 |c_ldv_kref_get_#in~kref.offset| ((_ extract 7 0) .cse12)) .cse13 ((_ extract 15 8) .cse12)) .cse14 ((_ extract 23 16) .cse12)) .cse15 ((_ extract 31 24) .cse12))))) |v_ldv_kobject_get_#in~kobj.base_BEFORE_CALL_2|))) (concat (concat (concat (select .cse10 .cse1) (select .cse10 .cse2)) (select .cse10 .cse3)) (select .cse10 .cse4))) (_ bv1 32))))) is different from false [2021-08-27 06:20:28,014 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:20:28,014 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [26270875] [2021-08-27 06:20:28,015 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-27 06:20:28,015 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1115506824] [2021-08-27 06:20:28,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:20:28,015 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-08-27 06:20:28,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2021-08-27 06:20:28,022 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 06:20:28,025 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (29)] Waiting until timeout for monitored process [2021-08-27 06:20:30,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:20:30,166 INFO L263 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 130 conjunts are in the unsatisfiable core [2021-08-27 06:20:30,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:20:30,395 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-08-27 06:20:30,614 INFO L354 Elim1Store]: treesize reduction 23, result has 23.3 percent of original size [2021-08-27 06:20:30,615 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2021-08-27 06:20:30,831 INFO L354 Elim1Store]: treesize reduction 60, result has 22.1 percent of original size [2021-08-27 06:20:30,834 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 36 treesize of output 38 [2021-08-27 06:20:31,101 INFO L354 Elim1Store]: treesize reduction 110, result has 19.1 percent of original size [2021-08-27 06:20:31,101 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 47 treesize of output 52 [2021-08-27 06:20:31,412 INFO L354 Elim1Store]: treesize reduction 172, result has 16.9 percent of original size [2021-08-27 06:20:31,412 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 58 treesize of output 66 [2021-08-27 06:20:31,824 INFO L354 Elim1Store]: treesize reduction 246, result has 15.2 percent of original size [2021-08-27 06:20:31,828 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 69 treesize of output 80 [2021-08-27 06:20:32,308 INFO L354 Elim1Store]: treesize reduction 332, result has 13.8 percent of original size [2021-08-27 06:20:32,308 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 80 treesize of output 94 [2021-08-27 06:20:32,798 INFO L354 Elim1Store]: treesize reduction 444, result has 12.3 percent of original size [2021-08-27 06:20:32,798 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 28 case distinctions, treesize of input 92 treesize of output 109 [2021-08-27 06:20:33,372 INFO L354 Elim1Store]: treesize reduction 566, result has 11.3 percent of original size [2021-08-27 06:20:33,373 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 36 case distinctions, treesize of input 104 treesize of output 124 [2021-08-27 06:20:34,072 INFO L354 Elim1Store]: treesize reduction 702, result has 10.5 percent of original size [2021-08-27 06:20:34,072 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 45 case distinctions, treesize of input 116 treesize of output 139 [2021-08-27 06:20:34,886 INFO L354 Elim1Store]: treesize reduction 796, result has 10.1 percent of original size [2021-08-27 06:20:34,887 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 55 case distinctions, treesize of input 124 treesize of output 150 [2021-08-27 06:20:35,896 INFO L354 Elim1Store]: treesize reduction 942, result has 9.4 percent of original size [2021-08-27 06:20:35,896 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 66 case distinctions, treesize of input 135 treesize of output 164 [2021-08-27 06:20:37,083 INFO L354 Elim1Store]: treesize reduction 1100, result has 8.9 percent of original size [2021-08-27 06:20:37,083 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 78 case distinctions, treesize of input 146 treesize of output 178 [2021-08-27 06:20:38,375 INFO L354 Elim1Store]: treesize reduction 1296, result has 8.2 percent of original size [2021-08-27 06:20:38,376 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 0 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 91 case distinctions, treesize of input 158 treesize of output 193 [2021-08-27 06:20:39,897 INFO L354 Elim1Store]: treesize reduction 1496, result has 7.8 percent of original size [2021-08-27 06:20:39,898 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 0 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 105 case distinctions, treesize of input 170 treesize of output 208 [2021-08-27 06:20:41,595 INFO L354 Elim1Store]: treesize reduction 1646, result has 7.5 percent of original size [2021-08-27 06:20:41,595 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 15 select indices, 15 select index equivalence classes, 0 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 120 case distinctions, treesize of input 179 treesize of output 220 [2021-08-27 06:20:47,673 WARN L860 $PredicateComparison]: unable to prove that (exists ((v_DerPreprocessor_5 (_ BitVec 32)) (v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_ldv_kobject_init_internal_#in~kobj.base| (let ((.cse0 (bvadd (_ bv4 32) |c_ldv_kobject_init_internal_#in~kobj.offset|))) (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_ldv_kobject_init_internal_#in~kobj.base|) (bvadd |c_ldv_kobject_init_internal_#in~kobj.offset| (_ bv12 32)) v_DerPreprocessor_2) (bvadd (_ bv13 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) v_DerPreprocessor_3) (bvadd (_ bv14 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) v_DerPreprocessor_4) (bvadd (_ bv15 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) v_DerPreprocessor_5) .cse0 .cse0) (bvadd (_ bv8 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) .cse0))))) is different from true [2021-08-27 06:20:49,699 WARN L860 $PredicateComparison]: unable to prove that (exists ((v_DerPreprocessor_5 (_ BitVec 32)) (v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_ldv_kobject_init_#in~kobj.base| (let ((.cse0 (bvadd (_ bv4 32) |c_ldv_kobject_init_#in~kobj.offset|))) (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_ldv_kobject_init_#in~kobj.base|) (bvadd |c_ldv_kobject_init_#in~kobj.offset| (_ bv12 32)) v_DerPreprocessor_2) (bvadd (_ bv13 32) |c_ldv_kobject_init_#in~kobj.offset|) v_DerPreprocessor_3) (bvadd (_ bv14 32) |c_ldv_kobject_init_#in~kobj.offset|) v_DerPreprocessor_4) (bvadd |c_ldv_kobject_init_#in~kobj.offset| (_ bv15 32)) v_DerPreprocessor_5) .cse0 .cse0) (bvadd (_ bv8 32) |c_ldv_kobject_init_#in~kobj.offset|) .cse0))))) is different from true [2021-08-27 06:20:49,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:49,878 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-27 06:20:49,881 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 16 select indices, 16 select index equivalence classes, 120 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 185 treesize of output 195 [2021-08-27 06:20:54,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:54,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:54,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:54,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:54,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:54,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:54,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:54,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:54,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:54,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:54,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:54,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:54,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:54,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:54,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:54,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:54,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:54,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:54,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:54,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:54,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:54,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:54,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:54,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:54,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:54,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:54,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:54,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:54,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:54,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:54,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:54,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:54,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:54,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:54,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:54,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:54,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:54,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:54,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:54,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:54,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:54,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:54,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:54,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:54,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:54,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:54,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:54,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:54,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:54,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:54,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:54,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:54,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:54,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:54,697 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-27 06:20:54,698 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 120 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 137 treesize of output 121 [2021-08-27 06:20:57,978 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-27 06:20:57,979 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 06:21:00,875 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-27 06:21:00,875 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 06:21:02,006 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 06:21:02,006 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:21:16,585 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-27 06:21:16,585 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1542202959] [2021-08-27 06:21:16,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:21:16,586 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 06:21:16,586 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 06:21:16,593 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 06:21:16,594 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 06:21:18,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:21:18,326 INFO L263 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 86 conjunts are in the unsatisfiable core [2021-08-27 06:21:18,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:21:18,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:18,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:18,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:18,468 INFO L173 IndexEqualityManager]: detected equality via solver [2021-08-27 06:21:18,469 INFO L173 IndexEqualityManager]: detected equality via solver [2021-08-27 06:21:18,508 INFO L354 Elim1Store]: treesize reduction 166, result has 13.5 percent of original size [2021-08-27 06:21:18,508 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 06:21:20,441 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 06:21:20,554 INFO L354 Elim1Store]: treesize reduction 360, result has 11.3 percent of original size [2021-08-27 06:21:20,555 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 06:21:21,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:21,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:21,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:21,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:21,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:21,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:21,010 INFO L173 IndexEqualityManager]: detected equality via solver [2021-08-27 06:21:21,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:21,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:21,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:21,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:21,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:21,013 INFO L173 IndexEqualityManager]: detected equality via solver [2021-08-27 06:21:21,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:21:21,015 INFO L173 IndexEqualityManager]: detected equality via solver [2021-08-27 06:21:21,015 INFO L173 IndexEqualityManager]: detected equality via solver [2021-08-27 06:21:21,023 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-27 06:21:21,023 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 06:21:21,350 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-27 06:21:21,351 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 06:21:21,389 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 06:21:21,390 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:21:22,381 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1172 treesize of output 1062 [2021-08-27 06:21:22,411 INFO L354 Elim1Store]: treesize reduction 72, result has 1.4 percent of original size [2021-08-27 06:21:22,412 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 65661 treesize of output 32893 [2021-08-27 06:21:58,066 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-27 06:21:58,067 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:21:58,067 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-08-27 06:21:58,067 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-08-27 06:21:58,067 INFO L626 BasicCegarLoop]: Counterexample might be feasible [2021-08-27 06:21:58,070 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:21:58,071 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION [2021-08-27 06:21:58,071 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION [2021-08-27 06:21:58,071 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION [2021-08-27 06:21:58,071 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION [2021-08-27 06:21:58,071 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION [2021-08-27 06:21:58,072 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION [2021-08-27 06:21:58,072 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION [2021-08-27 06:21:58,072 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION [2021-08-27 06:21:58,072 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION [2021-08-27 06:21:58,073 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION [2021-08-27 06:21:58,074 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION [2021-08-27 06:21:58,074 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION [2021-08-27 06:21:58,074 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION [2021-08-27 06:21:58,074 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION [2021-08-27 06:21:58,074 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION [2021-08-27 06:21:58,074 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION [2021-08-27 06:21:58,074 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION [2021-08-27 06:21:58,074 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION [2021-08-27 06:21:58,074 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION [2021-08-27 06:21:58,074 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION [2021-08-27 06:21:58,074 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION [2021-08-27 06:21:58,074 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION [2021-08-27 06:21:58,074 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION [2021-08-27 06:21:58,074 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION [2021-08-27 06:21:58,075 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION [2021-08-27 06:21:58,075 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION [2021-08-27 06:21:58,075 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION [2021-08-27 06:21:58,075 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION [2021-08-27 06:21:58,075 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION [2021-08-27 06:21:58,075 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION [2021-08-27 06:21:58,075 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION [2021-08-27 06:21:58,075 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION [2021-08-27 06:21:58,075 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION [2021-08-27 06:21:58,075 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION [2021-08-27 06:21:58,075 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION [2021-08-27 06:21:58,075 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION [2021-08-27 06:21:58,075 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION [2021-08-27 06:21:58,076 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION [2021-08-27 06:21:58,076 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION [2021-08-27 06:21:58,076 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION [2021-08-27 06:21:58,076 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION [2021-08-27 06:21:58,076 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION [2021-08-27 06:21:58,076 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:21:58,076 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:21:58,076 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:21:58,076 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:21:58,076 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:21:58,076 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:21:58,076 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-08-27 06:21:58,076 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION [2021-08-27 06:21:58,076 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION [2021-08-27 06:21:58,076 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION [2021-08-27 06:21:58,077 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION [2021-08-27 06:21:58,077 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION [2021-08-27 06:21:58,077 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION [2021-08-27 06:21:58,077 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION [2021-08-27 06:21:58,077 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION [2021-08-27 06:21:58,077 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:21:58,077 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:21:58,077 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:21:58,077 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:21:58,077 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:21:58,077 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION [2021-08-27 06:21:58,077 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION [2021-08-27 06:21:58,078 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION [2021-08-27 06:21:58,078 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION [2021-08-27 06:21:58,078 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION [2021-08-27 06:21:58,078 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION [2021-08-27 06:21:58,078 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION [2021-08-27 06:21:58,078 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION [2021-08-27 06:21:58,086 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 06:21:58,309 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2021-08-27 06:21:58,498 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (28)] Ended with exit code 0 [2021-08-27 06:21:58,685 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:21:58,689 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-27 06:21:58,692 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2021-08-27 06:21:58,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 06:21:58 BoogieIcfgContainer [2021-08-27 06:21:58,701 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-27 06:21:58,701 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 06:21:58,701 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 06:21:58,701 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 06:21:58,702 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:18:52" (3/4) ... [2021-08-27 06:21:58,704 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-27 06:21:58,704 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 06:21:58,705 INFO L168 Benchmark]: Toolchain (without parser) took 188320.73 ms. Allocated memory was 56.6 MB in the beginning and 264.2 MB in the end (delta: 207.6 MB). Free memory was 33.9 MB in the beginning and 155.7 MB in the end (delta: -121.8 MB). Peak memory consumption was 85.8 MB. Max. memory is 16.1 GB. [2021-08-27 06:21:58,705 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 56.6 MB. Free memory was 38.9 MB in the beginning and 38.9 MB in the end (delta: 38.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 06:21:58,705 INFO L168 Benchmark]: CACSL2BoogieTranslator took 679.41 ms. Allocated memory was 56.6 MB in the beginning and 71.3 MB in the end (delta: 14.7 MB). Free memory was 33.8 MB in the beginning and 36.9 MB in the end (delta: -3.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-08-27 06:21:58,706 INFO L168 Benchmark]: Boogie Preprocessor took 110.24 ms. Allocated memory is still 71.3 MB. Free memory was 36.7 MB in the beginning and 50.0 MB in the end (delta: -13.4 MB). Peak memory consumption was 5.1 MB. Max. memory is 16.1 GB. [2021-08-27 06:21:58,706 INFO L168 Benchmark]: RCFGBuilder took 1099.64 ms. Allocated memory was 71.3 MB in the beginning and 86.0 MB in the end (delta: 14.7 MB). Free memory was 50.0 MB in the beginning and 47.2 MB in the end (delta: 2.9 MB). Peak memory consumption was 31.0 MB. Max. memory is 16.1 GB. [2021-08-27 06:21:58,706 INFO L168 Benchmark]: TraceAbstraction took 186423.54 ms. Allocated memory was 86.0 MB in the beginning and 264.2 MB in the end (delta: 178.3 MB). Free memory was 46.7 MB in the beginning and 155.7 MB in the end (delta: -109.1 MB). Peak memory consumption was 68.1 MB. Max. memory is 16.1 GB. [2021-08-27 06:21:58,707 INFO L168 Benchmark]: Witness Printer took 3.08 ms. Allocated memory is still 264.2 MB. Free memory is still 155.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 06:21:58,708 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 56.6 MB. Free memory was 38.9 MB in the beginning and 38.9 MB in the end (delta: 38.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 679.41 ms. Allocated memory was 56.6 MB in the beginning and 71.3 MB in the end (delta: 14.7 MB). Free memory was 33.8 MB in the beginning and 36.9 MB in the end (delta: -3.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 110.24 ms. Allocated memory is still 71.3 MB. Free memory was 36.7 MB in the beginning and 50.0 MB in the end (delta: -13.4 MB). Peak memory consumption was 5.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1099.64 ms. Allocated memory was 71.3 MB in the beginning and 86.0 MB in the end (delta: 14.7 MB). Free memory was 50.0 MB in the beginning and 47.2 MB in the end (delta: 2.9 MB). Peak memory consumption was 31.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 186423.54 ms. Allocated memory was 86.0 MB in the beginning and 264.2 MB in the end (delta: 178.3 MB). Free memory was 46.7 MB in the beginning and 155.7 MB in the end (delta: -109.1 MB). Peak memory consumption was 68.1 MB. Max. memory is 16.1 GB. * Witness Printer took 3.08 ms. Allocated memory is still 264.2 MB. Free memory is still 155.7 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) }; [L765] CALL entry_point() [L758] struct ldv_kobject *kobj; [L759] CALL, EXPR ldv_kobject_create() [L740] struct ldv_kobject *kobj; [L741] CALL, EXPR ldv_malloc(sizeof(*kobj)) [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L741] RET, EXPR ldv_malloc(sizeof(*kobj)) [L741] kobj = ldv_malloc(sizeof(*kobj)) [L742] COND FALSE !(!kobj) [L744] FCALL memset(kobj, 0, sizeof(*kobj)) [L745] CALL ldv_kobject_init(kobj) [L730] COND FALSE !(!kobj) [L733] CALL ldv_kobject_init_internal(kobj) [L723] COND FALSE !(!kobj) [L725] CALL ldv_kref_init(&kobj->kref) [L682] ((&kref->refcount)->counter) = (1) [L725] RET ldv_kref_init(&kobj->kref) [L726] CALL LDV_INIT_LIST_HEAD(&kobj->entry) [L540] list->next = list [L541] list->prev = list [L726] RET LDV_INIT_LIST_HEAD(&kobj->entry) [L733] RET ldv_kobject_init_internal(kobj) [L745] RET ldv_kobject_init(kobj) [L746] return kobj; [L759] RET, EXPR ldv_kobject_create() [L759] kobj = ldv_kobject_create() [L760] CALL ldv_kobject_get(kobj) [L717] COND TRUE \read(*kobj) [L718] CALL ldv_kref_get(&kobj->kref) [L686] CALL ldv_atomic_add_return(1, (&kref->refcount)) [L657] int temp; [L658] EXPR v->counter [L658] temp = v->counter [L659] temp += i [L660] v->counter = temp [L661] return temp; [L686] RET ldv_atomic_add_return(1, (&kref->refcount)) [L718] RET ldv_kref_get(&kobj->kref) [L719] return kobj; [L760] RET ldv_kobject_get(kobj) [L761] CALL ldv_kobject_put(kobj) [L711] COND TRUE \read(*kobj) [L712] CALL ldv_kref_put(&kobj->kref, ldv_kobject_release) [L690] CALL ldv_kref_sub(kref, 1, release) [L674] CALL, EXPR ldv_atomic_sub_return(((int) count), (&kref->refcount)) [L665] int temp; [L666] EXPR v->counter [L666] temp = v->counter [L667] temp -= i [L668] v->counter = temp [L669] return temp; [L674] RET, EXPR ldv_atomic_sub_return(((int) count), (&kref->refcount)) [L674] COND TRUE (ldv_atomic_sub_return(((int) count), (&kref->refcount)) == 0) [L675] CALL release(kref) [L706] const typeof( ((struct ldv_kobject *)0)->kref ) *__mptr = (kref); [L706] struct ldv_kobject *kobj = ({ const typeof( ((struct ldv_kobject *)0)->kref ) *__mptr = (kref); (struct ldv_kobject *)( (char *)__mptr - ((size_t) &((struct ldv_kobject *)0)->kref) );}); [L707] CALL ldv_kobject_cleanup(kobj) [L699] EXPR kobj->name [L699] char *name = kobj->name; [L700] free(kobj) [L700] free(kobj) [L700] free(kobj) [L701] COND TRUE \read(*name) [L702] free(name) - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 764]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 47 procedures, 334 locations, 71 error locations. Started 1 CEGAR loops. OverallTime: 186373.2ms, OverallIterations: 27, TraceHistogramMax: 16, EmptinessCheckTime: 42.9ms, AutomataDifference: 20785.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 19.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 3321 SDtfs, 1603 SDslu, 25209 SDs, 0 SdLazy, 12950 SolverSat, 389 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 15316.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3004 GetRequests, 2465 SyntacticMatches, 96 SemanticMatches, 443 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2218 ImplicationChecksByTransitivity, 11390.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=175occurred in iteration=0, InterpolantAutomatonStates: 315, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 223.2ms AutomataMinimizationTime, 26 MinimizatonAttempts, 156 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 461.2ms SsaConstructionTime, 1765.4ms SatisfiabilityAnalysisTime, 22704.5ms InterpolantComputationTime, 1476 NumberOfCodeBlocks, 1440 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 2900 ConstructedInterpolants, 478 QuantifiedInterpolants, 12289 SizeOfPredicates, 111 NumberOfNonLiveVariables, 6056 ConjunctsInSsa, 387 ConjunctsInUnsatCore, 52 InterpolantComputations, 45 PerfectInterpolantSequences, 3801/4062 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-08-27 06:21:58,815 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...