./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test6_3.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_test6_3.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 9988836ddee06b99001d03a87a3e72125eac1288 ................................................................................................................................... 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_test6_3.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 9988836ddee06b99001d03a87a3e72125eac1288 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 06:24:11,735 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 06:24:11,738 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 06:24:11,760 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 06:24:11,761 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 06:24:11,761 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 06:24:11,762 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 06:24:11,764 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 06:24:11,765 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 06:24:11,766 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 06:24:11,767 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 06:24:11,768 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 06:24:11,768 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 06:24:11,769 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 06:24:11,770 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 06:24:11,771 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 06:24:11,771 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 06:24:11,772 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 06:24:11,778 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 06:24:11,790 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 06:24:11,792 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 06:24:11,794 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 06:24:11,796 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 06:24:11,797 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 06:24:11,804 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 06:24:11,804 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 06:24:11,804 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 06:24:11,805 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 06:24:11,805 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 06:24:11,806 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 06:24:11,806 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 06:24:11,807 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 06:24:11,807 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 06:24:11,808 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 06:24:11,808 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 06:24:11,808 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 06:24:11,809 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 06:24:11,809 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 06:24:11,809 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 06:24:11,810 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 06:24:11,810 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 06:24:11,811 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-08-27 06:24:11,825 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 06:24:11,826 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 06:24:11,826 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 06:24:11,826 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 06:24:11,827 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 06:24:11,827 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 06:24:11,827 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 06:24:11,827 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 06:24:11,827 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 06:24:11,827 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 06:24:11,828 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 06:24:11,828 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 06:24:11,828 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 06:24:11,828 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-27 06:24:11,828 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-27 06:24:11,828 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-08-27 06:24:11,828 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-27 06:24:11,829 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-27 06:24:11,829 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 06:24:11,829 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 06:24:11,829 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 06:24:11,829 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 06:24:11,829 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-27 06:24:11,829 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 06:24:11,830 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 06:24:11,830 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-27 06:24:11,830 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 06:24:11,830 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-27 06:24:11,830 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 06:24:11,830 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9988836ddee06b99001d03a87a3e72125eac1288 [2021-08-27 06:24:12,056 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 06:24:12,069 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 06:24:12,071 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 06:24:12,072 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 06:24:12,072 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 06:24:12,073 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test6_3.i [2021-08-27 06:24:12,122 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6be49f1f/9efa1a9613cc433ca085b9363e9995c1/FLAG583413a39 [2021-08-27 06:24:12,571 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 06:24:12,571 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test6_3.i [2021-08-27 06:24:12,585 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6be49f1f/9efa1a9613cc433ca085b9363e9995c1/FLAG583413a39 [2021-08-27 06:24:12,598 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6be49f1f/9efa1a9613cc433ca085b9363e9995c1 [2021-08-27 06:24:12,602 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 06:24:12,605 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-27 06:24:12,606 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 06:24:12,606 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 06:24:12,609 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 06:24:12,609 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:24:12" (1/1) ... [2021-08-27 06:24:12,610 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@985e12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:24:12, skipping insertion in model container [2021-08-27 06:24:12,610 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:24:12" (1/1) ... [2021-08-27 06:24:12,614 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 06:24:12,652 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 06:24:12,928 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:24:12,939 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 06:24:12,949 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3721f0ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:24:12, skipping insertion in model container [2021-08-27 06:24:12,949 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 06:24:12,949 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-08-27 06:24:12,951 INFO L168 Benchmark]: Toolchain (without parser) took 345.32 ms. Allocated memory is still 62.9 MB. Free memory was 41.7 MB in the beginning and 42.1 MB in the end (delta: -438.7 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-08-27 06:24:12,952 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 62.9 MB. Free memory was 43.7 MB in the beginning and 43.6 MB in the end (delta: 40.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 06:24:12,953 INFO L168 Benchmark]: CACSL2BoogieTranslator took 343.20 ms. Allocated memory is still 62.9 MB. Free memory was 41.5 MB in the beginning and 42.1 MB in the end (delta: -632.5 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-08-27 06:24:12,955 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 62.9 MB. Free memory was 43.7 MB in the beginning and 43.6 MB in the end (delta: 40.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 343.20 ms. Allocated memory is still 62.9 MB. Free memory was 41.5 MB in the beginning and 42.1 MB in the end (delta: -632.5 kB). Peak memory consumption was 10.5 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 06:24:14,252 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 06:24:14,254 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 06:24:14,286 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 06:24:14,286 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 06:24:14,287 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 06:24:14,288 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 06:24:14,289 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 06:24:14,290 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 06:24:14,291 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 06:24:14,291 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 06:24:14,292 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 06:24:14,292 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 06:24:14,293 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 06:24:14,294 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 06:24:14,294 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 06:24:14,295 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 06:24:14,296 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 06:24:14,297 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 06:24:14,298 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 06:24:14,299 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 06:24:14,299 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 06:24:14,300 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 06:24:14,301 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 06:24:14,302 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 06:24:14,303 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 06:24:14,303 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 06:24:14,303 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 06:24:14,304 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 06:24:14,304 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 06:24:14,304 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 06:24:14,307 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 06:24:14,307 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 06:24:14,308 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 06:24:14,310 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 06:24:14,310 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 06:24:14,311 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 06:24:14,311 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 06:24:14,311 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 06:24:14,312 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 06:24:14,313 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 06:24:14,314 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-08-27 06:24:14,331 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 06:24:14,331 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 06:24:14,332 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 06:24:14,332 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 06:24:14,341 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 06:24:14,342 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 06:24:14,342 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 06:24:14,342 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 06:24:14,342 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 06:24:14,343 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 06:24:14,343 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 06:24:14,343 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 06:24:14,344 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 06:24:14,344 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-27 06:24:14,344 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-27 06:24:14,344 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-08-27 06:24:14,344 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-27 06:24:14,344 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-27 06:24:14,344 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-27 06:24:14,345 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-27 06:24:14,345 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 06:24:14,345 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 06:24:14,345 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 06:24:14,345 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 06:24:14,345 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-27 06:24:14,346 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 06:24:14,346 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 06:24:14,346 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-27 06:24:14,346 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-27 06:24:14,346 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-27 06:24:14,346 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 06:24:14,346 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-27 06:24:14,347 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9988836ddee06b99001d03a87a3e72125eac1288 [2021-08-27 06:24:14,600 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 06:24:14,619 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 06:24:14,621 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 06:24:14,622 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 06:24:14,622 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 06:24:14,623 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test6_3.i [2021-08-27 06:24:14,676 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42f3c972c/3580eed0a178485aab04dd471c6e6ce6/FLAGf8d6fe691 [2021-08-27 06:24:15,079 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 06:24:15,081 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test6_3.i [2021-08-27 06:24:15,092 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42f3c972c/3580eed0a178485aab04dd471c6e6ce6/FLAGf8d6fe691 [2021-08-27 06:24:15,428 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42f3c972c/3580eed0a178485aab04dd471c6e6ce6 [2021-08-27 06:24:15,436 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 06:24:15,437 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-27 06:24:15,438 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 06:24:15,439 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 06:24:15,441 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 06:24:15,442 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:24:15" (1/1) ... [2021-08-27 06:24:15,442 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69e29f29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:24:15, skipping insertion in model container [2021-08-27 06:24:15,442 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:24:15" (1/1) ... [2021-08-27 06:24:15,447 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 06:24:15,486 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 06:24:15,794 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:24:15,812 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-08-27 06:24:15,821 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 06:24:15,873 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:24:15,878 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 06:24:15,923 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:24:15,959 INFO L208 MainTranslator]: Completed translation [2021-08-27 06:24:15,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:24:15 WrapperNode [2021-08-27 06:24:15,960 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 06:24:15,961 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 06:24:15,961 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 06:24:15,961 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 06:24:15,968 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:24:15" (1/1) ... [2021-08-27 06:24:15,968 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:24:15" (1/1) ... [2021-08-27 06:24:15,987 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:24:15" (1/1) ... [2021-08-27 06:24:15,990 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:24:15" (1/1) ... [2021-08-27 06:24:16,021 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:24:15" (1/1) ... [2021-08-27 06:24:16,035 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:24:15" (1/1) ... [2021-08-27 06:24:16,040 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:24:15" (1/1) ... [2021-08-27 06:24:16,051 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 06:24:16,052 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 06:24:16,052 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 06:24:16,052 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 06:24:16,053 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:24:15" (1/1) ... [2021-08-27 06:24:16,057 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 06:24:16,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 06:24:16,074 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 06:24:16,100 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 06:24:16,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-08-27 06:24:16,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 06:24:16,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-08-27 06:24:16,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-08-27 06:24:16,123 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-08-27 06:24:16,125 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-08-27 06:24:16,125 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-08-27 06:24:16,125 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-08-27 06:24:16,125 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-08-27 06:24:16,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-08-27 06:24:16,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-08-27 06:24:16,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-08-27 06:24:16,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-08-27 06:24:16,126 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-08-27 06:24:16,126 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-08-27 06:24:16,126 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-08-27 06:24:16,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-08-27 06:24:16,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-08-27 06:24:16,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-08-27 06:24:16,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-08-27 06:24:16,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-08-27 06:24:16,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-08-27 06:24:16,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-08-27 06:24:16,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-08-27 06:24:16,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-08-27 06:24:16,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-08-27 06:24:16,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-08-27 06:24:16,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-08-27 06:24:16,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-08-27 06:24:16,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-08-27 06:24:16,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-08-27 06:24:16,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-08-27 06:24:16,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-08-27 06:24:16,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-08-27 06:24:16,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-08-27 06:24:16,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-08-27 06:24:16,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-08-27 06:24:16,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-08-27 06:24:16,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-08-27 06:24:16,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-08-27 06:24:16,129 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-08-27 06:24:16,130 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-08-27 06:24:16,130 INFO L138 BoogieDeclarations]: Found implementation of procedure f6 [2021-08-27 06:24:16,130 INFO L138 BoogieDeclarations]: Found implementation of procedure g6 [2021-08-27 06:24:16,130 INFO L138 BoogieDeclarations]: Found implementation of procedure probe1_6 [2021-08-27 06:24:16,130 INFO L138 BoogieDeclarations]: Found implementation of procedure disconnect_2_6 [2021-08-27 06:24:16,131 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-08-27 06:24:16,131 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-08-27 06:24:16,131 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-08-27 06:24:16,131 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-08-27 06:24:16,132 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-08-27 06:24:16,132 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-08-27 06:24:16,132 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-08-27 06:24:16,132 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-08-27 06:24:16,132 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-08-27 06:24:16,132 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-08-27 06:24:16,133 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-08-27 06:24:16,133 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-08-27 06:24:16,133 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-08-27 06:24:16,133 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-08-27 06:24:16,133 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-08-27 06:24:16,134 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-08-27 06:24:16,134 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-08-27 06:24:16,134 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-08-27 06:24:16,135 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-08-27 06:24:16,135 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-08-27 06:24:16,135 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-08-27 06:24:16,135 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-08-27 06:24:16,135 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-08-27 06:24:16,135 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-08-27 06:24:16,136 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-08-27 06:24:16,136 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-08-27 06:24:16,136 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-08-27 06:24:16,136 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-08-27 06:24:16,136 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-08-27 06:24:16,136 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-08-27 06:24:16,136 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-08-27 06:24:16,137 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-08-27 06:24:16,137 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-08-27 06:24:16,137 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-08-27 06:24:16,137 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-08-27 06:24:16,137 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-08-27 06:24:16,138 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-08-27 06:24:16,138 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-08-27 06:24:16,138 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-08-27 06:24:16,138 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-08-27 06:24:16,138 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-08-27 06:24:16,138 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-08-27 06:24:16,138 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-08-27 06:24:16,139 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-08-27 06:24:16,139 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-08-27 06:24:16,139 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-08-27 06:24:16,139 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-08-27 06:24:16,139 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-08-27 06:24:16,139 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-08-27 06:24:16,139 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-08-27 06:24:16,139 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-08-27 06:24:16,140 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-08-27 06:24:16,140 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-08-27 06:24:16,140 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-08-27 06:24:16,140 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-08-27 06:24:16,140 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-08-27 06:24:16,141 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-08-27 06:24:16,141 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-08-27 06:24:16,141 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-08-27 06:24:16,141 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-08-27 06:24:16,141 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-08-27 06:24:16,141 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-08-27 06:24:16,141 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-08-27 06:24:16,141 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-08-27 06:24:16,142 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-08-27 06:24:16,142 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-08-27 06:24:16,142 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-08-27 06:24:16,142 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-08-27 06:24:16,142 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-08-27 06:24:16,142 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-08-27 06:24:16,142 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-08-27 06:24:16,142 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-08-27 06:24:16,143 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-08-27 06:24:16,143 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-08-27 06:24:16,143 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-08-27 06:24:16,143 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-08-27 06:24:16,144 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-08-27 06:24:16,144 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-08-27 06:24:16,146 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-08-27 06:24:16,147 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-08-27 06:24:16,147 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-08-27 06:24:16,147 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-08-27 06:24:16,148 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-08-27 06:24:16,148 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-08-27 06:24:16,149 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-08-27 06:24:16,149 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-08-27 06:24:16,149 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-08-27 06:24:16,153 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-08-27 06:24:16,154 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-08-27 06:24:16,154 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-08-27 06:24:16,154 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-08-27 06:24:16,154 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-08-27 06:24:16,154 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-08-27 06:24:16,154 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-08-27 06:24:16,154 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-08-27 06:24:16,154 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-08-27 06:24:16,155 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-08-27 06:24:16,155 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-08-27 06:24:16,155 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-08-27 06:24:16,155 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-08-27 06:24:16,155 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-08-27 06:24:16,155 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-08-27 06:24:16,155 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-08-27 06:24:16,155 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-08-27 06:24:16,156 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-08-27 06:24:16,156 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-08-27 06:24:16,156 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-08-27 06:24:16,156 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-08-27 06:24:16,156 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-08-27 06:24:16,156 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-08-27 06:24:16,156 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-08-27 06:24:16,156 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-08-27 06:24:16,156 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-08-27 06:24:16,157 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-08-27 06:24:16,157 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-08-27 06:24:16,157 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-08-27 06:24:16,157 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-08-27 06:24:16,157 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-08-27 06:24:16,157 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-08-27 06:24:16,157 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-08-27 06:24:16,157 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-08-27 06:24:16,157 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-08-27 06:24:16,158 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-08-27 06:24:16,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-08-27 06:24:16,158 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-08-27 06:24:16,158 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-08-27 06:24:16,158 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-08-27 06:24:16,158 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-08-27 06:24:16,158 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-08-27 06:24:16,158 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-08-27 06:24:16,158 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-08-27 06:24:16,158 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-08-27 06:24:16,159 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-08-27 06:24:16,159 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-08-27 06:24:16,159 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-27 06:24:16,159 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-08-27 06:24:16,159 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-08-27 06:24:16,159 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-08-27 06:24:16,159 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-08-27 06:24:16,159 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-08-27 06:24:16,159 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-08-27 06:24:16,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-08-27 06:24:16,160 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-08-27 06:24:16,160 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-08-27 06:24:16,160 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-08-27 06:24:16,160 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-08-27 06:24:16,160 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-08-27 06:24:16,160 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-08-27 06:24:16,160 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-08-27 06:24:16,160 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-08-27 06:24:16,161 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-08-27 06:24:16,161 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-08-27 06:24:16,161 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-08-27 06:24:16,161 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-08-27 06:24:16,161 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-08-27 06:24:16,161 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-08-27 06:24:16,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-08-27 06:24:16,161 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-08-27 06:24:16,161 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-08-27 06:24:16,161 INFO L130 BoogieDeclarations]: Found specification of procedure f6 [2021-08-27 06:24:16,162 INFO L130 BoogieDeclarations]: Found specification of procedure g6 [2021-08-27 06:24:16,162 INFO L130 BoogieDeclarations]: Found specification of procedure probe1_6 [2021-08-27 06:24:16,162 INFO L130 BoogieDeclarations]: Found specification of procedure disconnect_2_6 [2021-08-27 06:24:16,162 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-08-27 06:24:16,162 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-08-27 06:24:16,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-08-27 06:24:16,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 06:24:16,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-08-27 06:24:16,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 06:24:16,163 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-08-27 06:24:16,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-08-27 06:24:16,163 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-08-27 06:24:16,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-08-27 06:24:16,163 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-08-27 06:24:16,595 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 06:24:16,797 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 06:24:17,042 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 06:24:17,042 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-08-27 06:24:17,045 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:24:17 BoogieIcfgContainer [2021-08-27 06:24:17,045 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 06:24:17,046 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-27 06:24:17,047 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-27 06:24:17,048 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-27 06:24:17,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 06:24:15" (1/3) ... [2021-08-27 06:24:17,049 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@119c8b31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 06:24:17, skipping insertion in model container [2021-08-27 06:24:17,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:24:15" (2/3) ... [2021-08-27 06:24:17,050 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@119c8b31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 06:24:17, skipping insertion in model container [2021-08-27 06:24:17,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:24:17" (3/3) ... [2021-08-27 06:24:17,051 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test6_3.i [2021-08-27 06:24:17,054 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-27 06:24:17,055 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 78 error locations. [2021-08-27 06:24:17,087 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-27 06:24:17,092 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 06:24:17,092 INFO L340 AbstractCegarLoop]: Starting to check reachability of 78 error locations. [2021-08-27 06:24:17,103 INFO L276 IsEmpty]: Start isEmpty. Operand has 125 states, 70 states have (on average 1.5) internal successors, (105), 96 states have internal predecessors, (105), 15 states have call successors, (15), 14 states have call predecessors, (15), 14 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2021-08-27 06:24:17,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-08-27 06:24:17,111 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:24:17,111 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] [2021-08-27 06:24:17,112 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting entry_pointErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 74 more)] === [2021-08-27 06:24:17,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:24:17,115 INFO L82 PathProgramCache]: Analyzing trace with hash 24886788, now seen corresponding path program 1 times [2021-08-27 06:24:17,123 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:24:17,123 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [127668767] [2021-08-27 06:24:17,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:24:17,124 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:24:17,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:24:17,128 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 06:24:17,152 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 06:24:17,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:24:17,362 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 06:24:17,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:24:17,482 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 06:24:17,482 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:24:17,599 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 06:24:17,601 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:24:17,601 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [127668767] [2021-08-27 06:24:17,601 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [127668767] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:24:17,602 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:24:17,602 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-08-27 06:24:17,603 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277556232] [2021-08-27 06:24:17,606 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 06:24:17,606 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:24:17,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 06:24:17,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:24:17,617 INFO L87 Difference]: Start difference. First operand has 125 states, 70 states have (on average 1.5) internal successors, (105), 96 states have internal predecessors, (105), 15 states have call successors, (15), 14 states have call predecessors, (15), 14 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 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 06:24:17,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:24:17,670 INFO L93 Difference]: Finished difference Result 76 states and 85 transitions. [2021-08-27 06:24:17,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 06:24:17,671 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 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 20 [2021-08-27 06:24:17,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:24:17,678 INFO L225 Difference]: With dead ends: 76 [2021-08-27 06:24:17,678 INFO L226 Difference]: Without dead ends: 73 [2021-08-27 06:24:17,679 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 24.0ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:24:17,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-08-27 06:24:17,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 56. [2021-08-27 06:24:17,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 32 states have (on average 1.375) internal successors, (44), 40 states have internal predecessors, (44), 8 states have call successors, (8), 8 states have call predecessors, (8), 8 states have return successors, (8), 8 states have call predecessors, (8), 7 states have call successors, (8) [2021-08-27 06:24:17,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 60 transitions. [2021-08-27 06:24:17,707 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 60 transitions. Word has length 20 [2021-08-27 06:24:17,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:24:17,708 INFO L470 AbstractCegarLoop]: Abstraction has 56 states and 60 transitions. [2021-08-27 06:24:17,708 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 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 06:24:17,708 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 60 transitions. [2021-08-27 06:24:17,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-08-27 06:24:17,709 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:24:17,709 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] [2021-08-27 06:24:17,720 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 06:24:17,919 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 06:24:17,919 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting entry_pointErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 74 more)] === [2021-08-27 06:24:17,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:24:17,919 INFO L82 PathProgramCache]: Analyzing trace with hash -171626717, now seen corresponding path program 1 times [2021-08-27 06:24:17,920 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:24:17,920 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1955569933] [2021-08-27 06:24:17,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:24:17,920 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:24:17,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:24:17,925 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 06:24:17,927 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 06:24:18,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:24:18,072 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-27 06:24:18,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:24:18,121 INFO L354 Elim1Store]: treesize reduction 34, result has 38.2 percent of original size [2021-08-27 06:24:18,121 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 26 [2021-08-27 06:24:18,229 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2021-08-27 06:24:18,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:24:18,274 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:24:18,395 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-08-27 06:24:18,477 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 06:24:18,477 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:24:18,477 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1955569933] [2021-08-27 06:24:18,477 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1955569933] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:24:18,477 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:24:18,478 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-08-27 06:24:18,478 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382282973] [2021-08-27 06:24:18,478 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 06:24:18,479 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:24:18,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 06:24:18,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:24:18,479 INFO L87 Difference]: Start difference. First operand 56 states and 60 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 4 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2021-08-27 06:24:18,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:24:18,580 INFO L93 Difference]: Finished difference Result 92 states and 102 transitions. [2021-08-27 06:24:18,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 06:24:18,581 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 4 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 20 [2021-08-27 06:24:18,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:24:18,582 INFO L225 Difference]: With dead ends: 92 [2021-08-27 06:24:18,582 INFO L226 Difference]: Without dead ends: 89 [2021-08-27 06:24:18,582 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 30 SyntacticMatches, 6 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 34.9ms TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-08-27 06:24:18,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2021-08-27 06:24:18,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 79. [2021-08-27 06:24:18,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 48 states have (on average 1.3958333333333333) internal successors, (67), 58 states have internal predecessors, (67), 12 states have call successors, (12), 9 states have call predecessors, (12), 11 states have return successors, (14), 14 states have call predecessors, (14), 11 states have call successors, (14) [2021-08-27 06:24:18,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 93 transitions. [2021-08-27 06:24:18,599 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 93 transitions. Word has length 20 [2021-08-27 06:24:18,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:24:18,599 INFO L470 AbstractCegarLoop]: Abstraction has 79 states and 93 transitions. [2021-08-27 06:24:18,599 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 4 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2021-08-27 06:24:18,599 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 93 transitions. [2021-08-27 06:24:18,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-08-27 06:24:18,600 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:24:18,601 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] [2021-08-27 06:24:18,609 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-08-27 06:24:18,807 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 06:24:18,808 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting entry_pointErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 74 more)] === [2021-08-27 06:24:18,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:24:18,808 INFO L82 PathProgramCache]: Analyzing trace with hash -171626716, now seen corresponding path program 1 times [2021-08-27 06:24:18,809 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:24:18,809 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2082363571] [2021-08-27 06:24:18,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:24:18,810 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:24:18,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:24:18,810 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 06:24:18,836 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 06:24:18,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:24:19,002 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 11 conjunts are in the unsatisfiable core [2021-08-27 06:24:19,005 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:24:19,030 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-08-27 06:24:19,030 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2021-08-27 06:24:19,086 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-08-27 06:24:19,187 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 06:24:19,188 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:24:19,408 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2021-08-27 06:24:19,557 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 06:24:19,558 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:24:19,558 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2082363571] [2021-08-27 06:24:19,558 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2082363571] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:24:19,558 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:24:19,558 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-08-27 06:24:19,558 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129885548] [2021-08-27 06:24:19,558 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-27 06:24:19,558 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:24:19,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-27 06:24:19,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-08-27 06:24:19,559 INFO L87 Difference]: Start difference. First operand 79 states and 93 transitions. Second operand has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 5 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2021-08-27 06:24:19,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:24:19,707 INFO L93 Difference]: Finished difference Result 110 states and 118 transitions. [2021-08-27 06:24:19,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-27 06:24:19,709 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 5 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 20 [2021-08-27 06:24:19,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:24:19,710 INFO L225 Difference]: With dead ends: 110 [2021-08-27 06:24:19,710 INFO L226 Difference]: Without dead ends: 100 [2021-08-27 06:24:19,710 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 54.5ms TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2021-08-27 06:24:19,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2021-08-27 06:24:19,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 90. [2021-08-27 06:24:19,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 56 states have (on average 1.375) internal successors, (77), 66 states have internal predecessors, (77), 12 states have call successors, (12), 12 states have call predecessors, (12), 14 states have return successors, (14), 14 states have call predecessors, (14), 11 states have call successors, (14) [2021-08-27 06:24:19,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 103 transitions. [2021-08-27 06:24:19,714 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 103 transitions. Word has length 20 [2021-08-27 06:24:19,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:24:19,715 INFO L470 AbstractCegarLoop]: Abstraction has 90 states and 103 transitions. [2021-08-27 06:24:19,715 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 5 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2021-08-27 06:24:19,715 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 103 transitions. [2021-08-27 06:24:19,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-08-27 06:24:19,715 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:24:19,715 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] [2021-08-27 06:24:19,723 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 06:24:19,922 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 06:24:19,923 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting probe1_6Err2ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 74 more)] === [2021-08-27 06:24:19,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:24:19,923 INFO L82 PathProgramCache]: Analyzing trace with hash 2076107592, now seen corresponding path program 1 times [2021-08-27 06:24:19,923 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:24:19,923 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1178882331] [2021-08-27 06:24:19,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:24:19,924 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:24:19,924 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:24:19,924 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 06:24:19,925 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 06:24:20,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:24:20,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 06:24:20,111 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:24:20,169 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 06:24:20,170 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:24:20,230 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 06:24:20,230 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:24:20,230 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1178882331] [2021-08-27 06:24:20,230 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1178882331] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:24:20,230 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:24:20,231 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-08-27 06:24:20,231 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058501866] [2021-08-27 06:24:20,231 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 06:24:20,231 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:24:20,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 06:24:20,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:24:20,232 INFO L87 Difference]: Start difference. First operand 90 states and 103 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-08-27 06:24:20,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:24:20,248 INFO L93 Difference]: Finished difference Result 89 states and 101 transitions. [2021-08-27 06:24:20,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 06:24:20,249 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 22 [2021-08-27 06:24:20,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:24:20,250 INFO L225 Difference]: With dead ends: 89 [2021-08-27 06:24:20,250 INFO L226 Difference]: Without dead ends: 89 [2021-08-27 06:24:20,250 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.6ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:24:20,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2021-08-27 06:24:20,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2021-08-27 06:24:20,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 56 states have (on average 1.3392857142857142) internal successors, (75), 65 states have internal predecessors, (75), 12 states have call successors, (12), 12 states have call predecessors, (12), 14 states have return successors, (14), 14 states have call predecessors, (14), 11 states have call successors, (14) [2021-08-27 06:24:20,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 101 transitions. [2021-08-27 06:24:20,254 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 101 transitions. Word has length 22 [2021-08-27 06:24:20,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:24:20,254 INFO L470 AbstractCegarLoop]: Abstraction has 89 states and 101 transitions. [2021-08-27 06:24:20,254 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-08-27 06:24:20,254 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 101 transitions. [2021-08-27 06:24:20,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-08-27 06:24:20,254 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:24:20,254 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] [2021-08-27 06:24:20,264 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 06:24:20,455 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 06:24:20,455 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting probe1_6Err3ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 74 more)] === [2021-08-27 06:24:20,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:24:20,455 INFO L82 PathProgramCache]: Analyzing trace with hash -65173633, now seen corresponding path program 1 times [2021-08-27 06:24:20,456 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:24:20,456 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1435636047] [2021-08-27 06:24:20,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:24:20,456 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:24:20,456 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:24:20,457 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 06:24:20,458 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 06:24:20,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:24:20,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-27 06:24:20,645 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:24:20,817 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 06:24:20,818 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:24:20,953 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 06:24:20,953 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:24:20,953 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1435636047] [2021-08-27 06:24:20,953 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1435636047] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:24:20,953 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:24:20,954 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 4] imperfect sequences [] total 9 [2021-08-27 06:24:20,954 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983617728] [2021-08-27 06:24:20,954 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-27 06:24:20,954 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:24:20,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-27 06:24:20,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-08-27 06:24:20,955 INFO L87 Difference]: Start difference. First operand 89 states and 101 transitions. Second operand has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 8 states have internal predecessors, (28), 4 states have call successors, (11), 3 states have call predecessors, (11), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2021-08-27 06:24:21,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:24:21,114 INFO L93 Difference]: Finished difference Result 95 states and 102 transitions. [2021-08-27 06:24:21,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-27 06:24:21,115 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 8 states have internal predecessors, (28), 4 states have call successors, (11), 3 states have call predecessors, (11), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) Word has length 23 [2021-08-27 06:24:21,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:24:21,116 INFO L225 Difference]: With dead ends: 95 [2021-08-27 06:24:21,116 INFO L226 Difference]: Without dead ends: 95 [2021-08-27 06:24:21,116 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 71.3ms TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-08-27 06:24:21,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2021-08-27 06:24:21,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 88. [2021-08-27 06:24:21,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 56 states have (on average 1.3035714285714286) internal successors, (73), 64 states have internal predecessors, (73), 12 states have call successors, (12), 12 states have call predecessors, (12), 14 states have return successors, (14), 14 states have call predecessors, (14), 11 states have call successors, (14) [2021-08-27 06:24:21,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 99 transitions. [2021-08-27 06:24:21,119 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 99 transitions. Word has length 23 [2021-08-27 06:24:21,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:24:21,120 INFO L470 AbstractCegarLoop]: Abstraction has 88 states and 99 transitions. [2021-08-27 06:24:21,120 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 8 states have internal predecessors, (28), 4 states have call successors, (11), 3 states have call predecessors, (11), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2021-08-27 06:24:21,120 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 99 transitions. [2021-08-27 06:24:21,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-08-27 06:24:21,120 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:24:21,120 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] [2021-08-27 06:24:21,129 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 06:24:21,327 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 06:24:21,327 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting probe1_6Err4ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 74 more)] === [2021-08-27 06:24:21,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:24:21,328 INFO L82 PathProgramCache]: Analyzing trace with hash -2020382166, now seen corresponding path program 1 times [2021-08-27 06:24:21,328 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:24:21,328 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [488404940] [2021-08-27 06:24:21,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:24:21,328 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:24:21,328 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:24:21,329 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 06:24:21,329 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 06:24:21,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:24:21,534 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 06:24:21,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:24:21,560 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 06:24:21,635 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 06:24:21,636 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:24:21,706 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 06:24:21,706 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:24:21,706 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [488404940] [2021-08-27 06:24:21,706 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [488404940] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:24:21,706 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:24:21,707 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 5 [2021-08-27 06:24:21,707 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033923908] [2021-08-27 06:24:21,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-27 06:24:21,707 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:24:21,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-27 06:24:21,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-08-27 06:24:21,708 INFO L87 Difference]: Start difference. First operand 88 states and 99 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-08-27 06:24:21,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:24:21,809 INFO L93 Difference]: Finished difference Result 91 states and 98 transitions. [2021-08-27 06:24:21,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-27 06:24:21,810 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 24 [2021-08-27 06:24:21,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:24:21,811 INFO L225 Difference]: With dead ends: 91 [2021-08-27 06:24:21,811 INFO L226 Difference]: Without dead ends: 91 [2021-08-27 06:24:21,811 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 41 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 26.3ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-08-27 06:24:21,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2021-08-27 06:24:21,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 88. [2021-08-27 06:24:21,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 56 states have (on average 1.2857142857142858) internal successors, (72), 64 states have internal predecessors, (72), 12 states have call successors, (12), 12 states have call predecessors, (12), 14 states have return successors, (14), 14 states have call predecessors, (14), 11 states have call successors, (14) [2021-08-27 06:24:21,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 98 transitions. [2021-08-27 06:24:21,819 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 98 transitions. Word has length 24 [2021-08-27 06:24:21,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:24:21,819 INFO L470 AbstractCegarLoop]: Abstraction has 88 states and 98 transitions. [2021-08-27 06:24:21,819 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-08-27 06:24:21,819 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 98 transitions. [2021-08-27 06:24:21,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-08-27 06:24:21,819 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:24:21,820 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] [2021-08-27 06:24:21,830 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 06:24:22,022 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 06:24:22,022 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting probe1_6Err4ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 74 more)] === [2021-08-27 06:24:22,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:24:22,022 INFO L82 PathProgramCache]: Analyzing trace with hash 1769026505, now seen corresponding path program 1 times [2021-08-27 06:24:22,023 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:24:22,023 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1648307372] [2021-08-27 06:24:22,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:24:22,023 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:24:22,023 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:24:22,024 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 06:24:22,031 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 06:24:22,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:24:22,242 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-27 06:24:22,243 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:24:22,328 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 06:24:22,329 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:24:22,425 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 06:24:22,425 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:24:22,426 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1648307372] [2021-08-27 06:24:22,426 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1648307372] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:24:22,426 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:24:22,426 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-08-27 06:24:22,426 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676509877] [2021-08-27 06:24:22,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 06:24:22,426 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:24:22,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 06:24:22,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:24:22,427 INFO L87 Difference]: Start difference. First operand 88 states and 98 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-08-27 06:24:22,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:24:22,441 INFO L93 Difference]: Finished difference Result 62 states and 66 transitions. [2021-08-27 06:24:22,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 06:24:22,442 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 24 [2021-08-27 06:24:22,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:24:22,443 INFO L225 Difference]: With dead ends: 62 [2021-08-27 06:24:22,443 INFO L226 Difference]: Without dead ends: 58 [2021-08-27 06:24:22,443 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.8ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:24:22,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2021-08-27 06:24:22,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2021-08-27 06:24:22,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 35 states have (on average 1.2571428571428571) internal successors, (44), 41 states have internal predecessors, (44), 9 states have call successors, (9), 9 states have call predecessors, (9), 9 states have return successors, (9), 9 states have call predecessors, (9), 8 states have call successors, (9) [2021-08-27 06:24:22,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 62 transitions. [2021-08-27 06:24:22,445 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 62 transitions. Word has length 24 [2021-08-27 06:24:22,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:24:22,445 INFO L470 AbstractCegarLoop]: Abstraction has 58 states and 62 transitions. [2021-08-27 06:24:22,446 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-08-27 06:24:22,446 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 62 transitions. [2021-08-27 06:24:22,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-08-27 06:24:22,446 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:24:22,446 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] [2021-08-27 06:24:22,455 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 06:24:22,669 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 06:24:22,669 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting probe1_6Err0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 74 more)] === [2021-08-27 06:24:22,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:24:22,669 INFO L82 PathProgramCache]: Analyzing trace with hash -292940866, now seen corresponding path program 1 times [2021-08-27 06:24:22,669 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:24:22,670 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [722288820] [2021-08-27 06:24:22,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:24:22,670 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:24:22,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:24:22,670 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 06:24:22,671 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 06:24:22,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:24:22,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 13 conjunts are in the unsatisfiable core [2021-08-27 06:24:22,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:24:22,925 INFO L354 Elim1Store]: treesize reduction 34, result has 38.2 percent of original size [2021-08-27 06:24:22,925 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 26 [2021-08-27 06:24:23,055 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-08-27 06:24:23,056 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 20 [2021-08-27 06:24:23,156 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 06:24:23,156 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:24:23,341 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 06:24:23,341 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:24:23,341 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [722288820] [2021-08-27 06:24:23,341 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [722288820] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:24:23,341 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:24:23,341 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 5] imperfect sequences [] total 8 [2021-08-27 06:24:23,341 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97076006] [2021-08-27 06:24:23,342 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-08-27 06:24:23,342 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:24:23,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-27 06:24:23,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-08-27 06:24:23,342 INFO L87 Difference]: Start difference. First operand 58 states and 62 transitions. Second operand has 9 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 3 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-08-27 06:24:23,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:24:23,595 INFO L93 Difference]: Finished difference Result 62 states and 64 transitions. [2021-08-27 06:24:23,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-27 06:24:23,597 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 3 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 28 [2021-08-27 06:24:23,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:24:23,597 INFO L225 Difference]: With dead ends: 62 [2021-08-27 06:24:23,598 INFO L226 Difference]: Without dead ends: 62 [2021-08-27 06:24:23,598 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 39 SyntacticMatches, 10 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 181.5ms TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2021-08-27 06:24:23,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2021-08-27 06:24:23,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 57. [2021-08-27 06:24:23,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 35 states have (on average 1.2285714285714286) internal successors, (43), 40 states have internal predecessors, (43), 9 states have call successors, (9), 9 states have call predecessors, (9), 9 states have return successors, (9), 9 states have call predecessors, (9), 8 states have call successors, (9) [2021-08-27 06:24:23,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 61 transitions. [2021-08-27 06:24:23,600 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 61 transitions. Word has length 28 [2021-08-27 06:24:23,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:24:23,600 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 61 transitions. [2021-08-27 06:24:23,600 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 3 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-08-27 06:24:23,600 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 61 transitions. [2021-08-27 06:24:23,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-08-27 06:24:23,601 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:24:23,601 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] [2021-08-27 06:24:23,613 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-08-27 06:24:23,807 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 06:24:23,808 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting probe1_6Err1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 74 more)] === [2021-08-27 06:24:23,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:24:23,808 INFO L82 PathProgramCache]: Analyzing trace with hash -292940865, now seen corresponding path program 1 times [2021-08-27 06:24:23,809 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:24:23,809 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1124184556] [2021-08-27 06:24:23,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:24:23,809 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:24:23,809 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:24:23,809 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 06:24:23,810 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 06:24:24,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:24:24,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 18 conjunts are in the unsatisfiable core [2021-08-27 06:24:24,054 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:24:24,072 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-08-27 06:24:24,073 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2021-08-27 06:24:28,258 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-08-27 06:24:28,258 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2021-08-27 06:24:28,445 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 06:24:28,445 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:24:29,885 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 06:24:29,885 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:24:29,886 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1124184556] [2021-08-27 06:24:29,886 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1124184556] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:24:29,886 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:24:29,886 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 7] imperfect sequences [] total 14 [2021-08-27 06:24:29,886 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491426208] [2021-08-27 06:24:29,886 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-08-27 06:24:29,886 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:24:29,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-08-27 06:24:29,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=167, Unknown=2, NotChecked=0, Total=210 [2021-08-27 06:24:29,887 INFO L87 Difference]: Start difference. First operand 57 states and 61 transitions. Second operand has 15 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 12 states have internal predecessors, (34), 6 states have call successors, (13), 8 states have call predecessors, (13), 6 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2021-08-27 06:24:35,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:24:35,390 INFO L93 Difference]: Finished difference Result 55 states and 58 transitions. [2021-08-27 06:24:35,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-27 06:24:35,391 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 12 states have internal predecessors, (34), 6 states have call successors, (13), 8 states have call predecessors, (13), 6 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 28 [2021-08-27 06:24:35,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:24:35,391 INFO L225 Difference]: With dead ends: 55 [2021-08-27 06:24:35,391 INFO L226 Difference]: Without dead ends: 55 [2021-08-27 06:24:35,391 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 38 SyntacticMatches, 5 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 5592.0ms TimeCoverageRelationStatistics Valid=123, Invalid=381, Unknown=2, NotChecked=0, Total=506 [2021-08-27 06:24:35,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2021-08-27 06:24:35,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2021-08-27 06:24:35,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 35 states have (on average 1.1428571428571428) internal successors, (40), 38 states have internal predecessors, (40), 9 states have call successors, (9), 9 states have call predecessors, (9), 9 states have return successors, (9), 9 states have call predecessors, (9), 8 states have call successors, (9) [2021-08-27 06:24:35,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 58 transitions. [2021-08-27 06:24:35,394 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 58 transitions. Word has length 28 [2021-08-27 06:24:35,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:24:35,394 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 58 transitions. [2021-08-27 06:24:35,394 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 12 states have internal predecessors, (34), 6 states have call successors, (13), 8 states have call predecessors, (13), 6 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2021-08-27 06:24:35,396 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 58 transitions. [2021-08-27 06:24:35,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-08-27 06:24:35,396 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:24:35,397 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:24:35,403 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2021-08-27 06:24:35,600 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 06:24:35,602 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting entry_pointErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 74 more)] === [2021-08-27 06:24:35,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:24:35,603 INFO L82 PathProgramCache]: Analyzing trace with hash 2144040275, now seen corresponding path program 1 times [2021-08-27 06:24:35,603 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:24:35,603 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [905053304] [2021-08-27 06:24:35,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:24:35,603 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:24:35,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:24:35,604 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 06:24:35,606 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 06:24:35,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:24:35,881 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 15 conjunts are in the unsatisfiable core [2021-08-27 06:24:35,882 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:24:35,922 INFO L354 Elim1Store]: treesize reduction 34, result has 38.2 percent of original size [2021-08-27 06:24:35,923 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 26 [2021-08-27 06:24:35,992 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2021-08-27 06:24:36,098 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 15 [2021-08-27 06:24:36,266 INFO L354 Elim1Store]: treesize reduction 20, result has 28.6 percent of original size [2021-08-27 06:24:36,266 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 28 [2021-08-27 06:24:36,308 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 06:24:36,308 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:24:36,687 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2021-08-27 06:24:36,823 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 06:24:36,823 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:24:36,823 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [905053304] [2021-08-27 06:24:36,823 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [905053304] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:24:36,823 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:24:36,824 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 6] imperfect sequences [] total 13 [2021-08-27 06:24:36,824 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087744729] [2021-08-27 06:24:36,824 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-08-27 06:24:36,824 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:24:36,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-08-27 06:24:36,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2021-08-27 06:24:36,825 INFO L87 Difference]: Start difference. First operand 55 states and 58 transitions. Second operand has 14 states, 13 states have (on average 2.769230769230769) internal successors, (36), 12 states have internal predecessors, (36), 6 states have call successors, (9), 5 states have call predecessors, (9), 7 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2021-08-27 06:25:53,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:25:53,433 INFO L93 Difference]: Finished difference Result 57 states and 59 transitions. [2021-08-27 06:25:53,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-27 06:25:53,433 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.769230769230769) internal successors, (36), 12 states have internal predecessors, (36), 6 states have call successors, (9), 5 states have call predecessors, (9), 7 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) Word has length 29 [2021-08-27 06:25:53,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:25:53,434 INFO L225 Difference]: With dead ends: 57 [2021-08-27 06:25:53,434 INFO L226 Difference]: Without dead ends: 42 [2021-08-27 06:25:53,434 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 39 SyntacticMatches, 7 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 10449.2ms TimeCoverageRelationStatistics Valid=96, Invalid=320, Unknown=4, NotChecked=0, Total=420 [2021-08-27 06:25:53,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-08-27 06:25:53,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2021-08-27 06:25:53,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 26 states have (on average 1.0384615384615385) internal successors, (27), 27 states have internal predecessors, (27), 8 states have call successors, (8), 8 states have call predecessors, (8), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-08-27 06:25:53,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 42 transitions. [2021-08-27 06:25:53,436 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 42 transitions. Word has length 29 [2021-08-27 06:25:53,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:25:53,436 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 42 transitions. [2021-08-27 06:25:53,436 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.769230769230769) internal successors, (36), 12 states have internal predecessors, (36), 6 states have call successors, (9), 5 states have call predecessors, (9), 7 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2021-08-27 06:25:53,436 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 42 transitions. [2021-08-27 06:25:53,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-08-27 06:25:53,436 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:25:53,437 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:25:53,443 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 06:25:53,643 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 06:25:53,643 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 74 more)] === [2021-08-27 06:25:53,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:25:53,644 INFO L82 PathProgramCache]: Analyzing trace with hash -1970951303, now seen corresponding path program 1 times [2021-08-27 06:25:53,644 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:25:53,644 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1262045179] [2021-08-27 06:25:53,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:25:53,644 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:25:53,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:25:53,646 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 06:25:53,652 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 06:25:53,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:25:53,960 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 06:25:53,961 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:25:54,053 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 06:25:54,054 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:25:54,176 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 06:25:54,176 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:25:54,176 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1262045179] [2021-08-27 06:25:54,176 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1262045179] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:25:54,176 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:25:54,176 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-08-27 06:25:54,176 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532502067] [2021-08-27 06:25:54,177 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 06:25:54,177 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:25:54,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 06:25:54,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:25:54,177 INFO L87 Difference]: Start difference. First operand 42 states and 42 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) [2021-08-27 06:25:54,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:25:54,195 INFO L93 Difference]: Finished difference Result 42 states and 41 transitions. [2021-08-27 06:25:54,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 06:25:54,196 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) Word has length 37 [2021-08-27 06:25:54,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:25:54,196 INFO L225 Difference]: With dead ends: 42 [2021-08-27 06:25:54,196 INFO L226 Difference]: Without dead ends: 42 [2021-08-27 06:25:54,197 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.1ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:25:54,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-08-27 06:25:54,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2021-08-27 06:25:54,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 26 states have (on average 1.0) internal successors, (26), 26 states have internal predecessors, (26), 8 states have call successors, (8), 8 states have call predecessors, (8), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-08-27 06:25:54,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 41 transitions. [2021-08-27 06:25:54,198 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 41 transitions. Word has length 37 [2021-08-27 06:25:54,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:25:54,198 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 41 transitions. [2021-08-27 06:25:54,198 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) [2021-08-27 06:25:54,198 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 41 transitions. [2021-08-27 06:25:54,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-08-27 06:25:54,199 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:25:54,199 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:25:54,209 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-08-27 06:25:54,399 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 06:25:54,399 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 74 more)] === [2021-08-27 06:25:54,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:25:54,400 INFO L82 PathProgramCache]: Analyzing trace with hash -1874562474, now seen corresponding path program 1 times [2021-08-27 06:25:54,400 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:25:54,400 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [693222909] [2021-08-27 06:25:54,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:25:54,400 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:25:54,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:25:54,401 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 06:25:54,402 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 06:25:54,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 06:25:54,745 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 06:25:54,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 06:25:54,807 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-08-27 06:25:54,807 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-08-27 06:25:54,808 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-08-27 06:25:54,809 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION [2021-08-27 06:25:54,809 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION [2021-08-27 06:25:54,809 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION [2021-08-27 06:25:54,810 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION [2021-08-27 06:25:54,810 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION [2021-08-27 06:25:54,810 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION [2021-08-27 06:25:54,810 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION [2021-08-27 06:25:54,810 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION [2021-08-27 06:25:54,810 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION [2021-08-27 06:25:54,810 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION [2021-08-27 06:25:54,810 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION [2021-08-27 06:25:54,810 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION [2021-08-27 06:25:54,811 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION [2021-08-27 06:25:54,811 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION [2021-08-27 06:25:54,811 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION [2021-08-27 06:25:54,811 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION [2021-08-27 06:25:54,811 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION [2021-08-27 06:25:54,811 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION [2021-08-27 06:25:54,811 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION [2021-08-27 06:25:54,811 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION [2021-08-27 06:25:54,811 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION [2021-08-27 06:25:54,811 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION [2021-08-27 06:25:54,812 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION [2021-08-27 06:25:54,812 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION [2021-08-27 06:25:54,812 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION [2021-08-27 06:25:54,812 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION [2021-08-27 06:25:54,812 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION [2021-08-27 06:25:54,812 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION [2021-08-27 06:25:54,812 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION [2021-08-27 06:25:54,812 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION [2021-08-27 06:25:54,812 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION [2021-08-27 06:25:54,813 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION [2021-08-27 06:25:54,813 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION [2021-08-27 06:25:54,813 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION [2021-08-27 06:25:54,813 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION [2021-08-27 06:25:54,813 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION [2021-08-27 06:25:54,813 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION [2021-08-27 06:25:54,813 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION [2021-08-27 06:25:54,813 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION [2021-08-27 06:25:54,813 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION [2021-08-27 06:25:54,813 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION [2021-08-27 06:25:54,814 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION [2021-08-27 06:25:54,814 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:25:54,814 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:25:54,814 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:25:54,814 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:25:54,814 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:25:54,814 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:25:54,814 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION [2021-08-27 06:25:54,815 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION [2021-08-27 06:25:54,815 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION [2021-08-27 06:25:54,815 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION [2021-08-27 06:25:54,815 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION [2021-08-27 06:25:54,815 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION [2021-08-27 06:25:54,815 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION [2021-08-27 06:25:54,815 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION [2021-08-27 06:25:54,815 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:25:54,815 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:25:54,816 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:25:54,816 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:25:54,816 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:25:54,816 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:25:54,816 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION [2021-08-27 06:25:54,816 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION [2021-08-27 06:25:54,816 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION [2021-08-27 06:25:54,816 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION [2021-08-27 06:25:54,816 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION [2021-08-27 06:25:54,816 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION [2021-08-27 06:25:54,817 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION [2021-08-27 06:25:54,817 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION [2021-08-27 06:25:54,817 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr0REQUIRES_VIOLATION [2021-08-27 06:25:54,817 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr1REQUIRES_VIOLATION [2021-08-27 06:25:54,817 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe1_6Err0REQUIRES_VIOLATION [2021-08-27 06:25:54,817 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe1_6Err1REQUIRES_VIOLATION [2021-08-27 06:25:54,817 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe1_6Err2ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:25:54,817 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe1_6Err3ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:25:54,817 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe1_6Err4ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:25:54,825 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 06:25:55,025 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 06:25:55,029 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-27 06:25:55,036 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-08-27 06:25:55,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 06:25:55 BoogieIcfgContainer [2021-08-27 06:25:55,053 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-27 06:25:55,053 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 06:25:55,054 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 06:25:55,054 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 06:25:55,054 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:24:17" (3/4) ... [2021-08-27 06:25:55,057 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-27 06:25:55,057 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 06:25:55,058 INFO L168 Benchmark]: Toolchain (without parser) took 99620.59 ms. Allocated memory was 67.1 MB in the beginning and 207.6 MB in the end (delta: 140.5 MB). Free memory was 47.2 MB in the beginning and 102.7 MB in the end (delta: -55.6 MB). Peak memory consumption was 84.7 MB. Max. memory is 16.1 GB. [2021-08-27 06:25:55,058 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 67.1 MB. Free memory is still 50.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 06:25:55,058 INFO L168 Benchmark]: CACSL2BoogieTranslator took 521.92 ms. Allocated memory is still 67.1 MB. Free memory was 47.1 MB in the beginning and 32.1 MB in the end (delta: 14.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-08-27 06:25:55,059 INFO L168 Benchmark]: Boogie Preprocessor took 90.73 ms. Allocated memory was 67.1 MB in the beginning and 83.9 MB in the end (delta: 16.8 MB). Free memory was 32.1 MB in the beginning and 63.7 MB in the end (delta: -31.6 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. [2021-08-27 06:25:55,059 INFO L168 Benchmark]: RCFGBuilder took 993.03 ms. Allocated memory is still 83.9 MB. Free memory was 63.4 MB in the beginning and 44.1 MB in the end (delta: 19.3 MB). Peak memory consumption was 36.4 MB. Max. memory is 16.1 GB. [2021-08-27 06:25:55,059 INFO L168 Benchmark]: TraceAbstraction took 98006.93 ms. Allocated memory was 83.9 MB in the beginning and 207.6 MB in the end (delta: 123.7 MB). Free memory was 43.1 MB in the beginning and 102.7 MB in the end (delta: -59.6 MB). Peak memory consumption was 62.6 MB. Max. memory is 16.1 GB. [2021-08-27 06:25:55,059 INFO L168 Benchmark]: Witness Printer took 3.52 ms. Allocated memory is still 207.6 MB. Free memory is still 102.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 06:25:55,060 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 67.1 MB. Free memory is still 50.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 521.92 ms. Allocated memory is still 67.1 MB. Free memory was 47.1 MB in the beginning and 32.1 MB in the end (delta: 14.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 90.73 ms. Allocated memory was 67.1 MB in the beginning and 83.9 MB in the end (delta: 16.8 MB). Free memory was 32.1 MB in the beginning and 63.7 MB in the end (delta: -31.6 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. * RCFGBuilder took 993.03 ms. Allocated memory is still 83.9 MB. Free memory was 63.4 MB in the beginning and 44.1 MB in the end (delta: 19.3 MB). Peak memory consumption was 36.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 98006.93 ms. Allocated memory was 83.9 MB in the beginning and 207.6 MB in the end (delta: 123.7 MB). Free memory was 43.1 MB in the beginning and 102.7 MB in the end (delta: -59.6 MB). Peak memory consumption was 62.6 MB. Max. memory is 16.1 GB. * Witness Printer took 3.52 ms. Allocated memory is still 207.6 MB. Free memory is still 102.7 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 ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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: 790]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 790. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L782] struct A a6; VAL [\old(a6)=null, \old(a6)=null, \old(ldv_global_msg_list)=null, \old(ldv_global_msg_list)=null, a6={3:0}, ldv_global_msg_list={-2147483648:0}] [L791] CALL entry_point() VAL [a6={3:0}, ldv_global_msg_list={-2147483648:0}] [L784] CALL, EXPR probe1_6(&a6) VAL [a={3:0}, a6={3:0}, ldv_global_msg_list={-2147483648:0}] [L764] int ret = - -3; VAL [a={3:0}, a={3:0}, a6={3:0}, ldv_global_msg_list={-2147483648:0}, ret=3] [L765] CALL, EXPR ldv_malloc(sizeof(int)) VAL [\old(size)=4, a6={3:0}, ldv_global_msg_list={-2147483648:0}] [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L765] RET, EXPR ldv_malloc(sizeof(int)) VAL [a={3:0}, a={3:0}, a6={3:0}, ldv_global_msg_list={-2147483648:0}, ldv_malloc(sizeof(int))={1:0}, ret=3] [L765] int *p = (int *)ldv_malloc(sizeof(int)); [L766] COND FALSE !(p==0) VAL [a={3:0}, a={3:0}, a6={3:0}, ldv_global_msg_list={-2147483648:0}, p={1:0}, ret=3] [L768] CALL, EXPR f6() VAL [a6={3:0}, ldv_global_msg_list={-2147483648:0}] [L758] return __VERIFIER_nondet_int(); [L768] RET, EXPR f6() VAL [a={3:0}, a={3:0}, a6={3:0}, f6()=0, ldv_global_msg_list={-2147483648:0}, p={1:0}, ret=3] [L768] ret = f6() [L769] COND FALSE !(ret<0) VAL [a={3:0}, a={3:0}, a6={3:0}, ldv_global_msg_list={-2147483648:0}, p={1:0}, ret=0] [L771] CALL, EXPR g6() VAL [a6={3:0}, ldv_global_msg_list={-2147483648:0}] [L761] return __VERIFIER_nondet_int(); [L771] RET, EXPR g6() VAL [a={3:0}, a={3:0}, a6={3:0}, g6()=0, ldv_global_msg_list={-2147483648:0}, p={1:0}, ret=0] [L771] ret = g6() [L772] COND FALSE !(ret<0) VAL [a={3:0}, a={3:0}, a6={3:0}, ldv_global_msg_list={-2147483648:0}, p={1:0}, ret=0] [L774] a->p = p VAL [a={3:0}, a={3:0}, a6={3:0}, ldv_global_msg_list={-2147483648:0}, p={1:0}, ret=0] [L775] return 0; VAL [\result=0, a={3:0}, a={3:0}, a6={3:0}, ldv_global_msg_list={-2147483648:0}, p={1:0}, ret=0] [L784] RET, EXPR probe1_6(&a6) VAL [a6={3:0}, ldv_global_msg_list={-2147483648:0}, probe1_6(&a6)=0] [L784] int ret = probe1_6(&a6); [L785] COND TRUE ret==0 VAL [a6={3:0}, ldv_global_msg_list={-2147483648:0}, ret=0] [L786] FCALL disconnect_2_6(&a6) VAL [a6={3:0}, ldv_global_msg_list={-2147483648:0}, ret=0] [L788] a6.p = 0 VAL [a6={3:0}, ldv_global_msg_list={-2147483648:0}, ret=0] [L791] RET entry_point() VAL [a6={3:0}, ldv_global_msg_list={-2147483648:0}] - 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: 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: 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. - UnprovableResult [Line: 788]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 788]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 774]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 774]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 777]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 777]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 777]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 51 procedures, 365 locations, 78 error locations. Started 1 CEGAR loops. OverallTime: 97942.3ms, OverallIterations: 12, TraceHistogramMax: 1, EmptinessCheckTime: 17.1ms, AutomataDifference: 83019.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 8.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 549 SDtfs, 753 SDslu, 1159 SDs, 0 SdLazy, 799 SolverSat, 254 SolverUnsat, 34 SolverUnknown, 0 SolverNotchecked, 71627.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 564 GetRequests, 448 SyntacticMatches, 31 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 16467.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=125occurred in iteration=0, InterpolantAutomatonStates: 80, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 64.0ms AutomataMinimizationTime, 11 MinimizatonAttempts, 52 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 113.1ms SsaConstructionTime, 271.8ms SatisfiabilityAnalysisTime, 9440.2ms InterpolantComputationTime, 316 NumberOfCodeBlocks, 316 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 528 ConstructedInterpolants, 45 QuantifiedInterpolants, 3205 SizeOfPredicates, 28 NumberOfNonLiveVariables, 1231 ConjunctsInSsa, 96 ConjunctsInUnsatCore, 22 InterpolantComputations, 22 PerfectInterpolantSequences, 0/0 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 06:25:55,106 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...