./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test12-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 5fbdf5bf Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/memleaks_test12-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 860d6e5e319ae714500a9e03b3d6c37db1380961 ................................................................................................................................... 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_test12-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 860d6e5e319ae714500a9e03b3d6c37db1380961 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-30 17:45:10,995 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-30 17:45:10,996 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-30 17:45:11,015 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-30 17:45:11,015 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-30 17:45:11,016 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-30 17:45:11,017 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-30 17:45:11,018 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-30 17:45:11,019 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-30 17:45:11,020 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-30 17:45:11,021 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-30 17:45:11,021 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-30 17:45:11,022 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-30 17:45:11,022 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-30 17:45:11,023 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-30 17:45:11,024 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-30 17:45:11,025 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-30 17:45:11,025 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-30 17:45:11,026 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-30 17:45:11,027 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-30 17:45:11,028 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-30 17:45:11,029 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-30 17:45:11,030 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-30 17:45:11,031 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-30 17:45:11,032 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-30 17:45:11,033 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-30 17:45:11,033 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-30 17:45:11,033 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-30 17:45:11,034 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-30 17:45:11,034 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-30 17:45:11,034 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-30 17:45:11,035 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-30 17:45:11,035 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-30 17:45:11,036 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-30 17:45:11,036 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-30 17:45:11,037 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-30 17:45:11,037 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-30 17:45:11,037 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-30 17:45:11,038 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-30 17:45:11,038 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-30 17:45:11,039 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-30 17:45:11,044 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-08-30 17:45:11,067 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-30 17:45:11,068 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-30 17:45:11,069 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-30 17:45:11,069 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-30 17:45:11,070 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-30 17:45:11,070 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-30 17:45:11,070 INFO L138 SettingsManager]: * Use SBE=true [2021-08-30 17:45:11,071 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-30 17:45:11,071 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-30 17:45:11,071 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-30 17:45:11,072 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-30 17:45:11,072 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-30 17:45:11,072 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-30 17:45:11,072 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-30 17:45:11,072 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-30 17:45:11,072 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-08-30 17:45:11,072 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-30 17:45:11,073 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-30 17:45:11,073 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-30 17:45:11,073 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-30 17:45:11,073 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-30 17:45:11,073 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-30 17:45:11,073 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-30 17:45:11,073 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-30 17:45:11,073 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-30 17:45:11,074 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-30 17:45:11,074 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-30 17:45:11,074 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-30 17:45:11,074 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-30 17:45:11,074 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 860d6e5e319ae714500a9e03b3d6c37db1380961 [2021-08-30 17:45:11,335 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-30 17:45:11,354 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-30 17:45:11,355 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-30 17:45:11,356 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-30 17:45:11,357 INFO L275 PluginConnector]: CDTParser initialized [2021-08-30 17:45:11,358 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test12-2.i [2021-08-30 17:45:11,400 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a4ef13e1/202cd1b81c254c8da93009e21f214ed4/FLAG068074f32 [2021-08-30 17:45:11,765 INFO L306 CDTParser]: Found 1 translation units. [2021-08-30 17:45:11,765 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test12-2.i [2021-08-30 17:45:11,773 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a4ef13e1/202cd1b81c254c8da93009e21f214ed4/FLAG068074f32 [2021-08-30 17:45:12,138 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a4ef13e1/202cd1b81c254c8da93009e21f214ed4 [2021-08-30 17:45:12,140 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-30 17:45:12,141 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-30 17:45:12,142 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-30 17:45:12,142 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-30 17:45:12,145 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-30 17:45:12,146 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 05:45:12" (1/1) ... [2021-08-30 17:45:12,158 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d339ab7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:45:12, skipping insertion in model container [2021-08-30 17:45:12,158 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 05:45:12" (1/1) ... [2021-08-30 17:45:12,163 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-30 17:45:12,208 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-30 17:45:12,521 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-30 17:45:12,537 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-08-30 17:45:12,537 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@18e904ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:45:12, skipping insertion in model container [2021-08-30 17:45:12,537 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-30 17:45:12,538 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-08-30 17:45:12,540 INFO L158 Benchmark]: Toolchain (without parser) took 398.06ms. Allocated memory was 50.3MB in the beginning and 65.0MB in the end (delta: 14.7MB). Free memory was 24.2MB in the beginning and 43.4MB in the end (delta: -19.2MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. [2021-08-30 17:45:12,541 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 50.3MB. Free memory was 32.2MB in the beginning and 32.1MB in the end (delta: 30.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-30 17:45:12,542 INFO L158 Benchmark]: CACSL2BoogieTranslator took 396.44ms. Allocated memory was 50.3MB in the beginning and 65.0MB in the end (delta: 14.7MB). Free memory was 24.0MB in the beginning and 43.4MB in the end (delta: -19.4MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. [2021-08-30 17:45:12,543 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 50.3MB. Free memory was 32.2MB in the beginning and 32.1MB in the end (delta: 30.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 396.44ms. Allocated memory was 50.3MB in the beginning and 65.0MB in the end (delta: 14.7MB). Free memory was 24.0MB in the beginning and 43.4MB in the end (delta: -19.4MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. * 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-wip.dd.seqcomp-5fbdf5b [2021-08-30 17:45:13,997 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-30 17:45:14,000 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-30 17:45:14,038 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-30 17:45:14,039 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-30 17:45:14,042 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-30 17:45:14,043 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-30 17:45:14,048 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-30 17:45:14,050 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-30 17:45:14,054 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-30 17:45:14,055 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-30 17:45:14,059 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-30 17:45:14,060 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-30 17:45:14,062 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-30 17:45:14,063 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-30 17:45:14,066 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-30 17:45:14,067 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-30 17:45:14,068 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-30 17:45:14,070 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-30 17:45:14,073 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-30 17:45:14,075 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-30 17:45:14,075 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-30 17:45:14,076 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-30 17:45:14,077 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-30 17:45:14,080 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-30 17:45:14,080 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-30 17:45:14,080 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-30 17:45:14,081 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-30 17:45:14,081 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-30 17:45:14,082 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-30 17:45:14,082 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-30 17:45:14,083 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-30 17:45:14,084 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-30 17:45:14,084 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-30 17:45:14,085 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-30 17:45:14,085 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-30 17:45:14,086 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-30 17:45:14,086 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-30 17:45:14,086 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-30 17:45:14,087 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-30 17:45:14,088 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-30 17:45:14,088 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-08-30 17:45:14,114 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-30 17:45:14,114 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-30 17:45:14,115 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-30 17:45:14,115 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-30 17:45:14,116 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-30 17:45:14,117 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-30 17:45:14,117 INFO L138 SettingsManager]: * Use SBE=true [2021-08-30 17:45:14,117 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-30 17:45:14,117 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-30 17:45:14,117 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-30 17:45:14,118 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-30 17:45:14,118 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-30 17:45:14,118 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-30 17:45:14,118 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-30 17:45:14,118 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-30 17:45:14,118 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-08-30 17:45:14,119 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-30 17:45:14,119 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-30 17:45:14,119 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-30 17:45:14,119 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-30 17:45:14,119 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-30 17:45:14,119 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-30 17:45:14,119 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-30 17:45:14,120 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-30 17:45:14,120 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-30 17:45:14,120 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-30 17:45:14,120 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-30 17:45:14,120 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-30 17:45:14,120 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-30 17:45:14,120 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-30 17:45:14,121 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-30 17:45:14,121 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-30 17:45:14,121 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 860d6e5e319ae714500a9e03b3d6c37db1380961 [2021-08-30 17:45:14,377 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-30 17:45:14,391 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-30 17:45:14,392 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-30 17:45:14,393 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-30 17:45:14,393 INFO L275 PluginConnector]: CDTParser initialized [2021-08-30 17:45:14,394 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test12-2.i [2021-08-30 17:45:14,433 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad946cf1d/093ce2b4638141e68e39955c477bb0c6/FLAG223f1d8b1 [2021-08-30 17:45:14,868 INFO L306 CDTParser]: Found 1 translation units. [2021-08-30 17:45:14,868 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test12-2.i [2021-08-30 17:45:14,882 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad946cf1d/093ce2b4638141e68e39955c477bb0c6/FLAG223f1d8b1 [2021-08-30 17:45:14,896 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad946cf1d/093ce2b4638141e68e39955c477bb0c6 [2021-08-30 17:45:14,898 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-30 17:45:14,899 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-30 17:45:14,900 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-30 17:45:14,900 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-30 17:45:14,902 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-30 17:45:14,903 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 05:45:14" (1/1) ... [2021-08-30 17:45:14,904 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19858d14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:45:14, skipping insertion in model container [2021-08-30 17:45:14,904 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 05:45:14" (1/1) ... [2021-08-30 17:45:14,909 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-30 17:45:14,957 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-30 17:45:15,294 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-30 17:45:15,307 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-08-30 17:45:15,313 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-30 17:45:15,370 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-30 17:45:15,385 INFO L203 MainTranslator]: Completed pre-run [2021-08-30 17:45:15,439 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-30 17:45:15,495 INFO L208 MainTranslator]: Completed translation [2021-08-30 17:45:15,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:45:15 WrapperNode [2021-08-30 17:45:15,496 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-30 17:45:15,496 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-30 17:45:15,496 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-30 17:45:15,496 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-30 17:45:15,503 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:45:15" (1/1) ... [2021-08-30 17:45:15,504 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:45:15" (1/1) ... [2021-08-30 17:45:15,520 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:45:15" (1/1) ... [2021-08-30 17:45:15,521 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:45:15" (1/1) ... [2021-08-30 17:45:15,549 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:45:15" (1/1) ... [2021-08-30 17:45:15,558 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:45:15" (1/1) ... [2021-08-30 17:45:15,563 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:45:15" (1/1) ... [2021-08-30 17:45:15,570 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-30 17:45:15,573 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-30 17:45:15,573 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-30 17:45:15,573 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-30 17:45:15,574 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:45:15" (1/1) ... [2021-08-30 17:45:15,597 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-30 17:45:15,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-30 17:45:15,615 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-30 17:45:15,641 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-30 17:45:15,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-08-30 17:45:15,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-30 17:45:15,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-08-30 17:45:15,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_INT~TO~C_INT [2021-08-30 17:45:15,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-08-30 17:45:15,653 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-08-30 17:45:15,653 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-08-30 17:45:15,653 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-08-30 17:45:15,653 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-08-30 17:45:15,653 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-08-30 17:45:15,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-08-30 17:45:15,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-08-30 17:45:15,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-08-30 17:45:15,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-08-30 17:45:15,653 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-08-30 17:45:15,653 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-08-30 17:45:15,654 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-08-30 17:45:15,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-08-30 17:45:15,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-08-30 17:45:15,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-08-30 17:45:15,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-08-30 17:45:15,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-08-30 17:45:15,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-08-30 17:45:15,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-08-30 17:45:15,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-08-30 17:45:15,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-08-30 17:45:15,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-08-30 17:45:15,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-08-30 17:45:15,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-08-30 17:45:15,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-08-30 17:45:15,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-08-30 17:45:15,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-08-30 17:45:15,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-08-30 17:45:15,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-08-30 17:45:15,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-08-30 17:45:15,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-08-30 17:45:15,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-08-30 17:45:15,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-08-30 17:45:15,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-08-30 17:45:15,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-08-30 17:45:15,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-08-30 17:45:15,655 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-08-30 17:45:15,655 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-08-30 17:45:15,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_i2c_get_clientdata [2021-08-30 17:45:15,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_i2c_set_clientdata [2021-08-30 17:45:15,656 INFO L138 BoogieDeclarations]: Found implementation of procedure master_xfer [2021-08-30 17:45:15,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_i2c_transfer [2021-08-30 17:45:15,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_m88ts2022_rd_reg [2021-08-30 17:45:15,656 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_fix_12 [2021-08-30 17:45:15,656 INFO L138 BoogieDeclarations]: Found implementation of procedure free_12 [2021-08-30 17:45:15,656 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-08-30 17:45:15,656 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-08-30 17:45:15,656 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-08-30 17:45:15,656 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-08-30 17:45:15,656 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-08-30 17:45:15,656 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-08-30 17:45:15,656 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-08-30 17:45:15,657 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-08-30 17:45:15,657 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-08-30 17:45:15,657 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-08-30 17:45:15,657 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-08-30 17:45:15,657 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-08-30 17:45:15,658 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-08-30 17:45:15,658 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-08-30 17:45:15,658 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-08-30 17:45:15,659 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-08-30 17:45:15,659 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-08-30 17:45:15,659 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-08-30 17:45:15,659 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-08-30 17:45:15,659 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-08-30 17:45:15,659 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-08-30 17:45:15,659 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-08-30 17:45:15,659 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-08-30 17:45:15,659 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-08-30 17:45:15,659 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-08-30 17:45:15,659 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-08-30 17:45:15,659 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-08-30 17:45:15,660 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-08-30 17:45:15,660 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-08-30 17:45:15,660 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-08-30 17:45:15,660 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-08-30 17:45:15,660 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-08-30 17:45:15,660 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-08-30 17:45:15,660 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-08-30 17:45:15,660 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-08-30 17:45:15,660 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-08-30 17:45:15,660 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-08-30 17:45:15,660 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-08-30 17:45:15,661 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-08-30 17:45:15,661 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-08-30 17:45:15,661 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-08-30 17:45:15,661 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-08-30 17:45:15,661 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-08-30 17:45:15,661 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-08-30 17:45:15,661 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-08-30 17:45:15,661 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-08-30 17:45:15,661 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-08-30 17:45:15,661 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-08-30 17:45:15,661 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-08-30 17:45:15,661 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-08-30 17:45:15,661 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-08-30 17:45:15,661 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-08-30 17:45:15,661 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-08-30 17:45:15,662 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-08-30 17:45:15,662 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-08-30 17:45:15,662 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-08-30 17:45:15,662 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-08-30 17:45:15,662 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-08-30 17:45:15,662 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-08-30 17:45:15,662 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-08-30 17:45:15,662 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-08-30 17:45:15,662 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-08-30 17:45:15,662 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-08-30 17:45:15,662 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-08-30 17:45:15,662 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-08-30 17:45:15,662 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-08-30 17:45:15,662 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-08-30 17:45:15,662 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-08-30 17:45:15,662 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-08-30 17:45:15,663 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-08-30 17:45:15,663 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-08-30 17:45:15,663 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-08-30 17:45:15,663 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-08-30 17:45:15,664 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-08-30 17:45:15,665 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-08-30 17:45:15,665 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-08-30 17:45:15,665 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-08-30 17:45:15,666 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-08-30 17:45:15,666 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-08-30 17:45:15,666 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-08-30 17:45:15,667 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-08-30 17:45:15,667 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-08-30 17:45:15,667 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-08-30 17:45:15,671 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-08-30 17:45:15,671 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-08-30 17:45:15,671 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-08-30 17:45:15,671 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-08-30 17:45:15,672 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-08-30 17:45:15,672 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-08-30 17:45:15,672 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-08-30 17:45:15,672 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-08-30 17:45:15,672 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-08-30 17:45:15,672 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-08-30 17:45:15,672 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-08-30 17:45:15,672 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-08-30 17:45:15,672 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-08-30 17:45:15,672 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-08-30 17:45:15,672 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-08-30 17:45:15,672 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-08-30 17:45:15,672 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-08-30 17:45:15,672 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-08-30 17:45:15,672 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-08-30 17:45:15,672 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-08-30 17:45:15,672 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-08-30 17:45:15,672 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-08-30 17:45:15,672 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-08-30 17:45:15,672 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-08-30 17:45:15,673 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-08-30 17:45:15,673 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-08-30 17:45:15,673 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-08-30 17:45:15,673 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-08-30 17:45:15,673 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-08-30 17:45:15,673 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-08-30 17:45:15,673 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-08-30 17:45:15,673 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-08-30 17:45:15,673 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-08-30 17:45:15,673 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-08-30 17:45:15,673 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-08-30 17:45:15,673 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-08-30 17:45:15,673 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-08-30 17:45:15,673 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-08-30 17:45:15,673 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-08-30 17:45:15,673 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-08-30 17:45:15,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-08-30 17:45:15,674 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-08-30 17:45:15,674 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-08-30 17:45:15,674 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-08-30 17:45:15,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-08-30 17:45:15,674 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-08-30 17:45:15,674 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-08-30 17:45:15,674 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-08-30 17:45:15,674 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-08-30 17:45:15,674 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-08-30 17:45:15,674 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-08-30 17:45:15,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-30 17:45:15,674 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-08-30 17:45:15,674 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-08-30 17:45:15,674 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-08-30 17:45:15,675 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-08-30 17:45:15,675 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-08-30 17:45:15,675 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-08-30 17:45:15,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-08-30 17:45:15,675 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-08-30 17:45:15,675 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-08-30 17:45:15,675 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-08-30 17:45:15,675 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-08-30 17:45:15,675 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-08-30 17:45:15,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-08-30 17:45:15,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-08-30 17:45:15,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-08-30 17:45:15,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-08-30 17:45:15,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-08-30 17:45:15,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-08-30 17:45:15,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-08-30 17:45:15,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-08-30 17:45:15,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-08-30 17:45:15,676 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-08-30 17:45:15,677 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-08-30 17:45:15,688 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-08-30 17:45:15,688 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_i2c_get_clientdata [2021-08-30 17:45:15,688 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_i2c_set_clientdata [2021-08-30 17:45:15,689 INFO L130 BoogieDeclarations]: Found specification of procedure master_xfer [2021-08-30 17:45:15,689 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_i2c_transfer [2021-08-30 17:45:15,689 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_INT~TO~C_INT [2021-08-30 17:45:15,689 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_m88ts2022_rd_reg [2021-08-30 17:45:15,689 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-30 17:45:15,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-08-30 17:45:15,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-08-30 17:45:15,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-08-30 17:45:15,689 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_fix_12 [2021-08-30 17:45:15,689 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-08-30 17:45:15,689 INFO L130 BoogieDeclarations]: Found specification of procedure free_12 [2021-08-30 17:45:15,689 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-08-30 17:45:15,689 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-08-30 17:45:15,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-08-30 17:45:15,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-30 17:45:15,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-08-30 17:45:15,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-08-30 17:45:15,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-08-30 17:45:15,689 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-08-30 17:45:15,689 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-08-30 17:45:15,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-08-30 17:45:15,689 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-08-30 17:45:16,078 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-30 17:45:16,129 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-30 17:45:16,225 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-30 17:45:16,225 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-08-30 17:45:16,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 05:45:16 BoogieIcfgContainer [2021-08-30 17:45:16,229 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-30 17:45:16,230 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-30 17:45:16,230 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-30 17:45:16,232 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-30 17:45:16,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 05:45:14" (1/3) ... [2021-08-30 17:45:16,234 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4999066e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 05:45:16, skipping insertion in model container [2021-08-30 17:45:16,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:45:15" (2/3) ... [2021-08-30 17:45:16,234 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4999066e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 05:45:16, skipping insertion in model container [2021-08-30 17:45:16,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 05:45:16" (3/3) ... [2021-08-30 17:45:16,235 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test12-2.i [2021-08-30 17:45:16,239 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-30 17:45:16,239 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 146 error locations. [2021-08-30 17:45:16,278 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-30 17:45:16,286 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-30 17:45:16,286 INFO L340 AbstractCegarLoop]: Starting to check reachability of 146 error locations. [2021-08-30 17:45:16,319 INFO L276 IsEmpty]: Start isEmpty. Operand has 408 states, 212 states have (on average 1.7311320754716981) internal successors, (367), 341 states have internal predecessors, (367), 40 states have call successors, (40), 29 states have call predecessors, (40), 29 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2021-08-30 17:45:16,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-08-30 17:45:16,324 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:45:16,325 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:45:16,325 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_destroy_msgsErr0REQUIRES_VIOLATION === [master_xferErr0REQUIRES_VIOLATION, master_xferErr1REQUIRES_VIOLATION, master_xferErr2REQUIRES_VIOLATION, master_xferErr3REQUIRES_VIOLATION (and 142 more)] === [2021-08-30 17:45:16,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:45:16,329 INFO L82 PathProgramCache]: Analyzing trace with hash 1947470556, now seen corresponding path program 1 times [2021-08-30 17:45:16,337 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:45:16,337 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [464946667] [2021-08-30 17:45:16,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:45:16,338 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:45:16,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:45:16,340 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 17:45:16,341 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-08-30 17:45:16,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:45:16,519 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-30 17:45:16,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:45:16,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:45:16,643 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:45:16,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:45:16,727 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:45:16,727 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [464946667] [2021-08-30 17:45:16,728 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [464946667] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 17:45:16,729 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 17:45:16,729 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-08-30 17:45:16,730 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717702140] [2021-08-30 17:45:16,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-30 17:45:16,735 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:45:16,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-30 17:45:16,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-30 17:45:16,769 INFO L87 Difference]: Start difference. First operand has 408 states, 212 states have (on average 1.7311320754716981) internal successors, (367), 341 states have internal predecessors, (367), 40 states have call successors, (40), 29 states have call predecessors, (40), 29 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-08-30 17:45:18,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:45:18,471 INFO L93 Difference]: Finished difference Result 439 states and 497 transitions. [2021-08-30 17:45:18,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-30 17:45:18,476 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2021-08-30 17:45:18,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:45:18,484 INFO L225 Difference]: With dead ends: 439 [2021-08-30 17:45:18,484 INFO L226 Difference]: Without dead ends: 436 [2021-08-30 17:45:18,485 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.36ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-30 17:45:18,487 INFO L928 BasicCegarLoop]: 82 mSDtfsCounter, 60 mSDsluCounter, 1274 mSDsCounter, 0 mSdLazyCounter, 1454 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1343.80ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 1455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.93ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1605.11ms IncrementalHoareTripleChecker+Time [2021-08-30 17:45:18,487 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 321 Invalid, 1455 Unknown, 0 Unchecked, 19.93ms Time], IncrementalHoareTripleChecker [1 Valid, 1454 Invalid, 0 Unknown, 0 Unchecked, 1605.11ms Time] [2021-08-30 17:45:18,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2021-08-30 17:45:18,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 374. [2021-08-30 17:45:18,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 193 states have (on average 1.7512953367875648) internal successors, (338), 316 states have internal predecessors, (338), 35 states have call successors, (35), 25 states have call predecessors, (35), 25 states have return successors, (42), 35 states have call predecessors, (42), 34 states have call successors, (42) [2021-08-30 17:45:18,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 415 transitions. [2021-08-30 17:45:18,525 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 415 transitions. Word has length 16 [2021-08-30 17:45:18,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:45:18,525 INFO L470 AbstractCegarLoop]: Abstraction has 374 states and 415 transitions. [2021-08-30 17:45:18,525 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-08-30 17:45:18,526 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 415 transitions. [2021-08-30 17:45:18,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-08-30 17:45:18,526 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:45:18,526 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:45:18,533 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-08-30 17:45:18,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:45:18,733 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_destroy_msgsErr0REQUIRES_VIOLATION === [master_xferErr0REQUIRES_VIOLATION, master_xferErr1REQUIRES_VIOLATION, master_xferErr2REQUIRES_VIOLATION, master_xferErr3REQUIRES_VIOLATION (and 142 more)] === [2021-08-30 17:45:18,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:45:18,733 INFO L82 PathProgramCache]: Analyzing trace with hash -604686405, now seen corresponding path program 1 times [2021-08-30 17:45:18,734 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:45:18,734 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [153653219] [2021-08-30 17:45:18,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:45:18,734 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:45:18,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:45:18,737 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 17:45:18,738 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-08-30 17:45:18,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:45:18,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-30 17:45:18,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:45:18,924 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-08-30 17:45:18,925 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 1 case distinctions, treesize of input 9 treesize of output 15 [2021-08-30 17:45:19,061 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-30 17:45:19,062 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 22 [2021-08-30 17:45:19,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:45:19,186 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:45:19,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:45:19,292 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:45:19,292 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [153653219] [2021-08-30 17:45:19,292 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [153653219] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 17:45:19,292 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 17:45:19,293 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-08-30 17:45:19,293 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602872274] [2021-08-30 17:45:19,294 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-30 17:45:19,294 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:45:19,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-30 17:45:19,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-08-30 17:45:19,294 INFO L87 Difference]: Start difference. First operand 374 states and 415 transitions. Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 3 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2021-08-30 17:45:20,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:45:20,993 INFO L93 Difference]: Finished difference Result 636 states and 714 transitions. [2021-08-30 17:45:20,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-30 17:45:20,994 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 3 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 16 [2021-08-30 17:45:20,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:45:20,997 INFO L225 Difference]: With dead ends: 636 [2021-08-30 17:45:20,998 INFO L226 Difference]: Without dead ends: 631 [2021-08-30 17:45:20,998 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 6 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 58.95ms TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2021-08-30 17:45:20,998 INFO L928 BasicCegarLoop]: 62 mSDtfsCounter, 613 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 1305 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1377.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 622 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 1411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.71ms SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 1305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1612.72ms IncrementalHoareTripleChecker+Time [2021-08-30 17:45:20,999 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [622 Valid, 80 Invalid, 1411 Unknown, 0 Unchecked, 13.71ms Time], IncrementalHoareTripleChecker [106 Valid, 1305 Invalid, 0 Unknown, 0 Unchecked, 1612.72ms Time] [2021-08-30 17:45:21,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2021-08-30 17:45:21,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 446. [2021-08-30 17:45:21,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 246 states have (on average 1.7195121951219512) internal successors, (423), 370 states have internal predecessors, (423), 43 states have call successors, (43), 33 states have call predecessors, (43), 37 states have return successors, (58), 45 states have call predecessors, (58), 42 states have call successors, (58) [2021-08-30 17:45:21,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 524 transitions. [2021-08-30 17:45:21,024 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 524 transitions. Word has length 16 [2021-08-30 17:45:21,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:45:21,024 INFO L470 AbstractCegarLoop]: Abstraction has 446 states and 524 transitions. [2021-08-30 17:45:21,024 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 3 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2021-08-30 17:45:21,024 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 524 transitions. [2021-08-30 17:45:21,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-08-30 17:45:21,025 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:45:21,025 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:45:21,033 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-08-30 17:45:21,225 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:45:21,225 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_destroy_msgsErr1REQUIRES_VIOLATION === [master_xferErr0REQUIRES_VIOLATION, master_xferErr1REQUIRES_VIOLATION, master_xferErr2REQUIRES_VIOLATION, master_xferErr3REQUIRES_VIOLATION (and 142 more)] === [2021-08-30 17:45:21,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:45:21,226 INFO L82 PathProgramCache]: Analyzing trace with hash -604686404, now seen corresponding path program 1 times [2021-08-30 17:45:21,226 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:45:21,226 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [370749180] [2021-08-30 17:45:21,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:45:21,227 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:45:21,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:45:21,227 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 17:45:21,229 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-08-30 17:45:21,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:45:21,350 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-30 17:45:21,352 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:45:21,359 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-08-30 17:45:21,427 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 [2021-08-30 17:45:21,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:45:21,479 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:45:21,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:45:21,692 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:45:21,692 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [370749180] [2021-08-30 17:45:21,692 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [370749180] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 17:45:21,692 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 17:45:21,692 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-08-30 17:45:21,693 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003283641] [2021-08-30 17:45:21,693 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-30 17:45:21,693 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:45:21,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-30 17:45:21,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-08-30 17:45:21,697 INFO L87 Difference]: Start difference. First operand 446 states and 524 transitions. Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 3 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2021-08-30 17:45:23,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:45:23,861 INFO L93 Difference]: Finished difference Result 671 states and 789 transitions. [2021-08-30 17:45:23,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-30 17:45:23,861 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 3 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 16 [2021-08-30 17:45:23,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:45:23,864 INFO L225 Difference]: With dead ends: 671 [2021-08-30 17:45:23,864 INFO L226 Difference]: Without dead ends: 671 [2021-08-30 17:45:23,864 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 50.36ms TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2021-08-30 17:45:23,865 INFO L928 BasicCegarLoop]: 84 mSDtfsCounter, 585 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 1369 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1823.59ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 594 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 1472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.98ms SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 1369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2110.02ms IncrementalHoareTripleChecker+Time [2021-08-30 17:45:23,865 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [594 Valid, 119 Invalid, 1472 Unknown, 0 Unchecked, 8.98ms Time], IncrementalHoareTripleChecker [103 Valid, 1369 Invalid, 0 Unknown, 0 Unchecked, 2110.02ms Time] [2021-08-30 17:45:23,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 671 states. [2021-08-30 17:45:23,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 671 to 527. [2021-08-30 17:45:23,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 312 states have (on average 1.7403846153846154) internal successors, (543), 438 states have internal predecessors, (543), 51 states have call successors, (51), 39 states have call predecessors, (51), 44 states have return successors, (70), 52 states have call predecessors, (70), 50 states have call successors, (70) [2021-08-30 17:45:23,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 664 transitions. [2021-08-30 17:45:23,881 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 664 transitions. Word has length 16 [2021-08-30 17:45:23,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:45:23,881 INFO L470 AbstractCegarLoop]: Abstraction has 527 states and 664 transitions. [2021-08-30 17:45:23,881 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 3 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2021-08-30 17:45:23,881 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 664 transitions. [2021-08-30 17:45:23,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-08-30 17:45:23,882 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:45:23,882 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:45:23,888 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-08-30 17:45:24,088 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:45:24,089 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_destroy_msgsErr2REQUIRES_VIOLATION === [master_xferErr0REQUIRES_VIOLATION, master_xferErr1REQUIRES_VIOLATION, master_xferErr2REQUIRES_VIOLATION, master_xferErr3REQUIRES_VIOLATION (and 142 more)] === [2021-08-30 17:45:24,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:45:24,089 INFO L82 PathProgramCache]: Analyzing trace with hash -1283043716, now seen corresponding path program 1 times [2021-08-30 17:45:24,090 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:45:24,090 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [551296782] [2021-08-30 17:45:24,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:45:24,090 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:45:24,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:45:24,090 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 17:45:24,091 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-08-30 17:45:24,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:45:24,223 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 20 conjunts are in the unsatisfiable core [2021-08-30 17:45:24,228 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:45:24,244 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-08-30 17:45:24,244 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 [2021-08-30 17:45:24,336 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-30 17:45:24,337 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 23 [2021-08-30 17:45:24,450 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 24 [2021-08-30 17:45:24,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:45:24,481 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:45:24,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:45:24,623 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:45:24,624 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [551296782] [2021-08-30 17:45:24,624 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [551296782] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 17:45:24,624 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 17:45:24,624 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-08-30 17:45:24,624 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314783320] [2021-08-30 17:45:24,624 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-30 17:45:24,624 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:45:24,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-30 17:45:24,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-08-30 17:45:24,625 INFO L87 Difference]: Start difference. First operand 527 states and 664 transitions. Second operand has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 3 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2021-08-30 17:45:27,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:45:27,255 INFO L93 Difference]: Finished difference Result 616 states and 768 transitions. [2021-08-30 17:45:27,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-30 17:45:27,256 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 3 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 18 [2021-08-30 17:45:27,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:45:27,258 INFO L225 Difference]: With dead ends: 616 [2021-08-30 17:45:27,258 INFO L226 Difference]: Without dead ends: 616 [2021-08-30 17:45:27,259 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 23 SyntacticMatches, 4 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 156.66ms TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2021-08-30 17:45:27,259 INFO L928 BasicCegarLoop]: 59 mSDtfsCounter, 263 mSDsluCounter, 1101 mSDsCounter, 0 mSdLazyCounter, 2667 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2203.67ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 2760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.04ms SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 2667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2505.72ms IncrementalHoareTripleChecker+Time [2021-08-30 17:45:27,259 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [264 Valid, 153 Invalid, 2760 Unknown, 0 Unchecked, 11.04ms Time], IncrementalHoareTripleChecker [93 Valid, 2667 Invalid, 0 Unknown, 0 Unchecked, 2505.72ms Time] [2021-08-30 17:45:27,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2021-08-30 17:45:27,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 537. [2021-08-30 17:45:27,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 319 states have (on average 1.7272727272727273) internal successors, (551), 446 states have internal predecessors, (551), 51 states have call successors, (51), 41 states have call predecessors, (51), 47 states have return successors, (70), 52 states have call predecessors, (70), 50 states have call successors, (70) [2021-08-30 17:45:27,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 672 transitions. [2021-08-30 17:45:27,271 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 672 transitions. Word has length 18 [2021-08-30 17:45:27,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:45:27,272 INFO L470 AbstractCegarLoop]: Abstraction has 537 states and 672 transitions. [2021-08-30 17:45:27,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 3 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2021-08-30 17:45:27,272 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 672 transitions. [2021-08-30 17:45:27,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-08-30 17:45:27,272 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:45:27,272 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:45:27,282 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-08-30 17:45:27,478 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:45:27,479 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_destroy_msgsErr3REQUIRES_VIOLATION === [master_xferErr0REQUIRES_VIOLATION, master_xferErr1REQUIRES_VIOLATION, master_xferErr2REQUIRES_VIOLATION, master_xferErr3REQUIRES_VIOLATION (and 142 more)] === [2021-08-30 17:45:27,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:45:27,479 INFO L82 PathProgramCache]: Analyzing trace with hash -1283043715, now seen corresponding path program 1 times [2021-08-30 17:45:27,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:45:27,479 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [27507912] [2021-08-30 17:45:27,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:45:27,479 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:45:27,480 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:45:27,480 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 17:45:27,481 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-08-30 17:45:27,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:45:27,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 29 conjunts are in the unsatisfiable core [2021-08-30 17:45:27,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:45:27,597 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-08-30 17:45:27,680 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 [2021-08-30 17:45:27,782 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 26 [2021-08-30 17:45:27,784 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2021-08-30 17:45:27,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:45:27,825 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:45:28,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:45:28,169 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:45:28,169 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [27507912] [2021-08-30 17:45:28,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [27507912] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 17:45:28,169 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 17:45:28,170 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-08-30 17:45:28,170 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764745199] [2021-08-30 17:45:28,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-30 17:45:28,170 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:45:28,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-30 17:45:28,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-08-30 17:45:28,170 INFO L87 Difference]: Start difference. First operand 537 states and 672 transitions. Second operand has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 3 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2021-08-30 17:45:33,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:45:33,224 INFO L93 Difference]: Finished difference Result 640 states and 801 transitions. [2021-08-30 17:45:33,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-30 17:45:33,225 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 3 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 18 [2021-08-30 17:45:33,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:45:33,227 INFO L225 Difference]: With dead ends: 640 [2021-08-30 17:45:33,227 INFO L226 Difference]: Without dead ends: 640 [2021-08-30 17:45:33,228 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 306.85ms TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2021-08-30 17:45:33,232 INFO L928 BasicCegarLoop]: 71 mSDtfsCounter, 280 mSDsluCounter, 1202 mSDsCounter, 0 mSdLazyCounter, 3082 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4301.67ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 3181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.24ms SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 3082 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4836.54ms IncrementalHoareTripleChecker+Time [2021-08-30 17:45:33,232 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [283 Valid, 254 Invalid, 3181 Unknown, 0 Unchecked, 14.24ms Time], IncrementalHoareTripleChecker [99 Valid, 3082 Invalid, 0 Unknown, 0 Unchecked, 4836.54ms Time] [2021-08-30 17:45:33,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 640 states. [2021-08-30 17:45:33,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 640 to 552. [2021-08-30 17:45:33,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 331 states have (on average 1.7190332326283988) internal successors, (569), 460 states have internal predecessors, (569), 52 states have call successors, (52), 42 states have call predecessors, (52), 49 states have return successors, (74), 52 states have call predecessors, (74), 51 states have call successors, (74) [2021-08-30 17:45:33,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 695 transitions. [2021-08-30 17:45:33,262 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 695 transitions. Word has length 18 [2021-08-30 17:45:33,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:45:33,262 INFO L470 AbstractCegarLoop]: Abstraction has 552 states and 695 transitions. [2021-08-30 17:45:33,262 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 3 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2021-08-30 17:45:33,262 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 695 transitions. [2021-08-30 17:45:33,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-08-30 17:45:33,263 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:45:33,263 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:45:33,272 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-08-30 17:45:33,470 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:45:33,471 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting entry_pointErr22ASSERT_VIOLATIONMEMORY_FREE === [master_xferErr0REQUIRES_VIOLATION, master_xferErr1REQUIRES_VIOLATION, master_xferErr2REQUIRES_VIOLATION, master_xferErr3REQUIRES_VIOLATION (and 142 more)] === [2021-08-30 17:45:33,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:45:33,471 INFO L82 PathProgramCache]: Analyzing trace with hash -1609617441, now seen corresponding path program 1 times [2021-08-30 17:45:33,471 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:45:33,471 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2043562547] [2021-08-30 17:45:33,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:45:33,472 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:45:33,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:45:33,472 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 17:45:33,473 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-08-30 17:45:33,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:45:33,570 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-30 17:45:33,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:45:33,603 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-30 17:45:33,603 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:45:33,650 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-30 17:45:33,650 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:45:33,650 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2043562547] [2021-08-30 17:45:33,650 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2043562547] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 17:45:33,650 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 17:45:33,650 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-08-30 17:45:33,650 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146842840] [2021-08-30 17:45:33,650 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-30 17:45:33,651 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:45:33,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-30 17:45:33,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-30 17:45:33,651 INFO L87 Difference]: Start difference. First operand 552 states and 695 transitions. 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), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-30 17:45:34,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:45:34,998 INFO L93 Difference]: Finished difference Result 613 states and 770 transitions. [2021-08-30 17:45:34,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-30 17:45:34,998 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), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 21 [2021-08-30 17:45:34,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:45:35,001 INFO L225 Difference]: With dead ends: 613 [2021-08-30 17:45:35,001 INFO L226 Difference]: Without dead ends: 613 [2021-08-30 17:45:35,002 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.60ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-30 17:45:35,004 INFO L928 BasicCegarLoop]: 83 mSDtfsCounter, 57 mSDsluCounter, 1331 mSDsCounter, 0 mSdLazyCounter, 1515 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1169.08ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 1516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.96ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1322.30ms IncrementalHoareTripleChecker+Time [2021-08-30 17:45:35,004 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 325 Invalid, 1516 Unknown, 0 Unchecked, 4.96ms Time], IncrementalHoareTripleChecker [1 Valid, 1515 Invalid, 0 Unknown, 0 Unchecked, 1322.30ms Time] [2021-08-30 17:45:35,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2021-08-30 17:45:35,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 554. [2021-08-30 17:45:35,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 333 states have (on average 1.7147147147147148) internal successors, (571), 461 states have internal predecessors, (571), 52 states have call successors, (52), 42 states have call predecessors, (52), 49 states have return successors, (74), 53 states have call predecessors, (74), 51 states have call successors, (74) [2021-08-30 17:45:35,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 697 transitions. [2021-08-30 17:45:35,025 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 697 transitions. Word has length 21 [2021-08-30 17:45:35,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:45:35,025 INFO L470 AbstractCegarLoop]: Abstraction has 554 states and 697 transitions. [2021-08-30 17:45:35,026 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), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-30 17:45:35,026 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 697 transitions. [2021-08-30 17:45:35,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-08-30 17:45:35,028 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:45:35,028 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:45:35,037 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-08-30 17:45:35,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:45:35,235 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting entry_pointErr0REQUIRES_VIOLATION === [master_xferErr0REQUIRES_VIOLATION, master_xferErr1REQUIRES_VIOLATION, master_xferErr2REQUIRES_VIOLATION, master_xferErr3REQUIRES_VIOLATION (and 142 more)] === [2021-08-30 17:45:35,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:45:35,236 INFO L82 PathProgramCache]: Analyzing trace with hash -1609617450, now seen corresponding path program 1 times [2021-08-30 17:45:35,236 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:45:35,236 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1767428025] [2021-08-30 17:45:35,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:45:35,236 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:45:35,236 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:45:35,237 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 17:45:35,238 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-08-30 17:45:35,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:45:35,333 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-30 17:45:35,334 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:45:35,346 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-08-30 17:45:35,427 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-08-30 17:45:35,427 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 16 treesize of output 21 [2021-08-30 17:45:35,440 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:45:35,440 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:45:35,569 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:45:35,569 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:45:35,569 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1767428025] [2021-08-30 17:45:35,569 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1767428025] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-30 17:45:35,569 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-30 17:45:35,569 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 7 [2021-08-30 17:45:35,569 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867325045] [2021-08-30 17:45:35,570 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-30 17:45:35,570 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:45:35,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-30 17:45:35,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-08-30 17:45:35,570 INFO L87 Difference]: Start difference. First operand 554 states and 697 transitions. Second operand has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-08-30 17:45:37,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:45:37,547 INFO L93 Difference]: Finished difference Result 688 states and 844 transitions. [2021-08-30 17:45:37,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-30 17:45:37,547 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 21 [2021-08-30 17:45:37,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:45:37,549 INFO L225 Difference]: With dead ends: 688 [2021-08-30 17:45:37,549 INFO L226 Difference]: Without dead ends: 688 [2021-08-30 17:45:37,549 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 30 SyntacticMatches, 6 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 101.96ms TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-08-30 17:45:37,550 INFO L928 BasicCegarLoop]: 73 mSDtfsCounter, 299 mSDsluCounter, 1167 mSDsCounter, 0 mSdLazyCounter, 2253 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1653.17ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 2890 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.91ms SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 2253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 573 IncrementalHoareTripleChecker+Unchecked, 1902.34ms IncrementalHoareTripleChecker+Time [2021-08-30 17:45:37,550 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [309 Valid, 157 Invalid, 2890 Unknown, 0 Unchecked, 8.91ms Time], IncrementalHoareTripleChecker [64 Valid, 2253 Invalid, 0 Unknown, 573 Unchecked, 1902.34ms Time] [2021-08-30 17:45:37,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2021-08-30 17:45:37,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 570. [2021-08-30 17:45:37,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 570 states, 348 states have (on average 1.7097701149425288) internal successors, (595), 473 states have internal predecessors, (595), 53 states have call successors, (53), 42 states have call predecessors, (53), 49 states have return successors, (76), 57 states have call predecessors, (76), 52 states have call successors, (76) [2021-08-30 17:45:37,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 724 transitions. [2021-08-30 17:45:37,562 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 724 transitions. Word has length 21 [2021-08-30 17:45:37,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:45:37,562 INFO L470 AbstractCegarLoop]: Abstraction has 570 states and 724 transitions. [2021-08-30 17:45:37,562 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-08-30 17:45:37,563 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 724 transitions. [2021-08-30 17:45:37,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-08-30 17:45:37,567 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:45:37,567 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:45:37,576 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-08-30 17:45:37,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:45:37,775 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting entry_pointErr1REQUIRES_VIOLATION === [master_xferErr0REQUIRES_VIOLATION, master_xferErr1REQUIRES_VIOLATION, master_xferErr2REQUIRES_VIOLATION, master_xferErr3REQUIRES_VIOLATION (and 142 more)] === [2021-08-30 17:45:37,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:45:37,776 INFO L82 PathProgramCache]: Analyzing trace with hash -1609617449, now seen corresponding path program 1 times [2021-08-30 17:45:37,776 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:45:37,776 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [497191813] [2021-08-30 17:45:37,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:45:37,776 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:45:37,776 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:45:37,777 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 17:45:37,779 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-08-30 17:45:37,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:45:37,884 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 16 conjunts are in the unsatisfiable core [2021-08-30 17:45:37,885 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:45:37,911 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-08-30 17:45:37,915 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-08-30 17:45:40,113 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-08-30 17:45:40,113 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 30 treesize of output 32 [2021-08-30 17:45:40,120 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-08-30 17:45:40,121 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 24 [2021-08-30 17:45:40,155 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:45:40,155 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:45:47,647 WARN L860 $PredicateComparison]: unable to prove that (forall ((v_entry_point_~client~0.base_BEFORE_CALL_4 (_ BitVec 32)) (|v_ldv_malloc_#res.base_41| (_ BitVec 32)) (v_entry_point_~client~0.offset_BEFORE_CALL_2 (_ BitVec 32))) (or (and (forall ((ldv_malloc_~size (_ BitVec 32))) (bvule (bvadd (_ bv4 32) v_entry_point_~client~0.offset_BEFORE_CALL_2) (select (store |c_#length| |v_ldv_malloc_#res.base_41| ldv_malloc_~size) v_entry_point_~client~0.base_BEFORE_CALL_4))) (bvule v_entry_point_~client~0.offset_BEFORE_CALL_2 (bvadd (_ bv4 32) v_entry_point_~client~0.offset_BEFORE_CALL_2))) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_#valid| |v_ldv_malloc_#res.base_41|)))))) (exists ((|v_ldv_malloc_#res.base_40| (_ BitVec 32))) (and (or (exists ((v_ldv_malloc_~size_37 (_ BitVec 32))) (not (bvule (bvadd (_ bv4 32) v_entry_point_~client~0.offset_BEFORE_CALL_2) (select (store |c_old(#length)| |v_ldv_malloc_#res.base_40| v_ldv_malloc_~size_37) v_entry_point_~client~0.base_BEFORE_CALL_4)))) (not (bvule v_entry_point_~client~0.offset_BEFORE_CALL_2 (bvadd (_ bv4 32) v_entry_point_~client~0.offset_BEFORE_CALL_2)))) (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_old(#valid)| |v_ldv_malloc_#res.base_40|))))))))) is different from true [2021-08-30 17:45:48,477 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 29 treesize of output 27 [2021-08-30 17:45:48,535 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2021-08-30 17:45:48,535 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:45:48,536 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [497191813] [2021-08-30 17:45:48,536 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [497191813] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-30 17:45:48,536 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-30 17:45:48,536 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2021-08-30 17:45:48,536 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131238175] [2021-08-30 17:45:48,537 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-08-30 17:45:48,537 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:45:48,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-08-30 17:45:48,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=4, NotChecked=26, Total=240 [2021-08-30 17:45:48,539 INFO L87 Difference]: Start difference. First operand 570 states and 724 transitions. Second operand has 16 states, 15 states have (on average 1.6) internal successors, (24), 14 states have internal predecessors, (24), 3 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2021-08-30 17:46:12,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:46:12,685 INFO L93 Difference]: Finished difference Result 762 states and 937 transitions. [2021-08-30 17:46:12,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-30 17:46:12,685 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 1.6) internal successors, (24), 14 states have internal predecessors, (24), 3 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) Word has length 21 [2021-08-30 17:46:12,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:46:12,687 INFO L225 Difference]: With dead ends: 762 [2021-08-30 17:46:12,687 INFO L226 Difference]: Without dead ends: 762 [2021-08-30 17:46:12,688 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 26895.86ms TimeCoverageRelationStatistics Valid=66, Invalid=309, Unknown=9, NotChecked=36, Total=420 [2021-08-30 17:46:12,688 INFO L928 BasicCegarLoop]: 75 mSDtfsCounter, 364 mSDsluCounter, 2466 mSDsCounter, 0 mSdLazyCounter, 4318 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5005.78ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 378 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 6880 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 24.41ms SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 4318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2475 IncrementalHoareTripleChecker+Unchecked, 5666.73ms IncrementalHoareTripleChecker+Time [2021-08-30 17:46:12,688 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [378 Valid, 450 Invalid, 6880 Unknown, 0 Unchecked, 24.41ms Time], IncrementalHoareTripleChecker [87 Valid, 4318 Invalid, 0 Unknown, 2475 Unchecked, 5666.73ms Time] [2021-08-30 17:46:12,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 762 states. [2021-08-30 17:46:12,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 762 to 592. [2021-08-30 17:46:12,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 592 states, 367 states have (on average 1.7057220708446867) internal successors, (626), 492 states have internal predecessors, (626), 56 states have call successors, (56), 42 states have call predecessors, (56), 49 states have return successors, (82), 60 states have call predecessors, (82), 55 states have call successors, (82) [2021-08-30 17:46:12,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 764 transitions. [2021-08-30 17:46:12,698 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 764 transitions. Word has length 21 [2021-08-30 17:46:12,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:46:12,699 INFO L470 AbstractCegarLoop]: Abstraction has 592 states and 764 transitions. [2021-08-30 17:46:12,699 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 1.6) internal successors, (24), 14 states have internal predecessors, (24), 3 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2021-08-30 17:46:12,699 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 764 transitions. [2021-08-30 17:46:12,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-08-30 17:46:12,699 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:46:12,699 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:46:12,708 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-08-30 17:46:12,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:46:12,905 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting entry_pointErr0REQUIRES_VIOLATION === [master_xferErr0REQUIRES_VIOLATION, master_xferErr1REQUIRES_VIOLATION, master_xferErr2REQUIRES_VIOLATION, master_xferErr3REQUIRES_VIOLATION (and 142 more)] === [2021-08-30 17:46:12,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:46:12,905 INFO L82 PathProgramCache]: Analyzing trace with hash -1903020457, now seen corresponding path program 1 times [2021-08-30 17:46:12,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:46:12,905 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [487809532] [2021-08-30 17:46:12,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:46:12,906 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:46:12,906 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:46:12,906 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 17:46:12,907 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-08-30 17:46:13,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:46:13,003 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-30 17:46:13,003 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:46:13,071 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:46:13,071 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:46:13,135 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-30 17:46:13,135 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:46:13,135 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [487809532] [2021-08-30 17:46:13,135 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [487809532] provided 1 perfect and 1 imperfect interpolant sequences [2021-08-30 17:46:13,136 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-30 17:46:13,136 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2021-08-30 17:46:13,136 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811986707] [2021-08-30 17:46:13,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-30 17:46:13,136 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:46:13,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-30 17:46:13,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-30 17:46:13,136 INFO L87 Difference]: Start difference. First operand 592 states and 764 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-08-30 17:46:14,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:46:14,518 INFO L93 Difference]: Finished difference Result 505 states and 612 transitions. [2021-08-30 17:46:14,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-30 17:46:14,518 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 21 [2021-08-30 17:46:14,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:46:14,520 INFO L225 Difference]: With dead ends: 505 [2021-08-30 17:46:14,520 INFO L226 Difference]: Without dead ends: 505 [2021-08-30 17:46:14,520 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.23ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-30 17:46:14,521 INFO L928 BasicCegarLoop]: 78 mSDtfsCounter, 2 mSDsluCounter, 1214 mSDsCounter, 0 mSdLazyCounter, 1339 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1182.59ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 1339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.77ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1362.79ms IncrementalHoareTripleChecker+Time [2021-08-30 17:46:14,521 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 310 Invalid, 1339 Unknown, 0 Unchecked, 3.77ms Time], IncrementalHoareTripleChecker [0 Valid, 1339 Invalid, 0 Unknown, 0 Unchecked, 1362.79ms Time] [2021-08-30 17:46:14,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2021-08-30 17:46:14,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 503. [2021-08-30 17:46:14,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 503 states, 298 states have (on average 1.6946308724832215) internal successors, (505), 419 states have internal predecessors, (505), 45 states have call successors, (45), 36 states have call predecessors, (45), 42 states have return successors, (60), 50 states have call predecessors, (60), 44 states have call successors, (60) [2021-08-30 17:46:14,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 610 transitions. [2021-08-30 17:46:14,528 INFO L78 Accepts]: Start accepts. Automaton has 503 states and 610 transitions. Word has length 21 [2021-08-30 17:46:14,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:46:14,528 INFO L470 AbstractCegarLoop]: Abstraction has 503 states and 610 transitions. [2021-08-30 17:46:14,528 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-08-30 17:46:14,528 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states and 610 transitions. [2021-08-30 17:46:14,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-08-30 17:46:14,529 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:46:14,529 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:46:14,545 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-08-30 17:46:14,736 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:46:14,736 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting entry_pointErr23ASSERT_VIOLATIONMEMORY_FREE === [master_xferErr0REQUIRES_VIOLATION, master_xferErr1REQUIRES_VIOLATION, master_xferErr2REQUIRES_VIOLATION, master_xferErr3REQUIRES_VIOLATION (and 142 more)] === [2021-08-30 17:46:14,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:46:14,736 INFO L82 PathProgramCache]: Analyzing trace with hash -1765996063, now seen corresponding path program 1 times [2021-08-30 17:46:14,737 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:46:14,737 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [815598188] [2021-08-30 17:46:14,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:46:14,737 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:46:14,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:46:14,738 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 17:46:14,744 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-08-30 17:46:14,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:46:14,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-30 17:46:14,843 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:46:15,008 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:46:15,008 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:46:15,131 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-30 17:46:15,131 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:46:15,131 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [815598188] [2021-08-30 17:46:15,131 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [815598188] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-30 17:46:15,131 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-30 17:46:15,132 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4] total 9 [2021-08-30 17:46:15,132 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174883455] [2021-08-30 17:46:15,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-30 17:46:15,132 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:46:15,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-30 17:46:15,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-08-30 17:46:15,133 INFO L87 Difference]: Start difference. First operand 503 states and 610 transitions. Second operand has 10 states, 9 states have (on average 3.0) internal successors, (27), 8 states have internal predecessors, (27), 4 states have call successors, (9), 3 states have call predecessors, (9), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2021-08-30 17:46:17,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:46:17,728 INFO L93 Difference]: Finished difference Result 504 states and 610 transitions. [2021-08-30 17:46:17,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-30 17:46:17,728 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.0) internal successors, (27), 8 states have internal predecessors, (27), 4 states have call successors, (9), 3 states have call predecessors, (9), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) Word has length 22 [2021-08-30 17:46:17,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:46:17,730 INFO L225 Difference]: With dead ends: 504 [2021-08-30 17:46:17,730 INFO L226 Difference]: Without dead ends: 504 [2021-08-30 17:46:17,730 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 110.20ms TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-08-30 17:46:17,730 INFO L928 BasicCegarLoop]: 63 mSDtfsCounter, 382 mSDsluCounter, 1675 mSDsCounter, 0 mSdLazyCounter, 2209 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2196.08ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 402 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 2565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.66ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 2209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 346 IncrementalHoareTripleChecker+Unchecked, 2541.06ms IncrementalHoareTripleChecker+Time [2021-08-30 17:46:17,731 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [402 Valid, 67 Invalid, 2565 Unknown, 0 Unchecked, 7.66ms Time], IncrementalHoareTripleChecker [10 Valid, 2209 Invalid, 0 Unknown, 346 Unchecked, 2541.06ms Time] [2021-08-30 17:46:17,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2021-08-30 17:46:17,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 502. [2021-08-30 17:46:17,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 298 states have (on average 1.6879194630872483) internal successors, (503), 418 states have internal predecessors, (503), 45 states have call successors, (45), 36 states have call predecessors, (45), 42 states have return successors, (60), 50 states have call predecessors, (60), 44 states have call successors, (60) [2021-08-30 17:46:17,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 608 transitions. [2021-08-30 17:46:17,738 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 608 transitions. Word has length 22 [2021-08-30 17:46:17,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:46:17,738 INFO L470 AbstractCegarLoop]: Abstraction has 502 states and 608 transitions. [2021-08-30 17:46:17,738 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.0) internal successors, (27), 8 states have internal predecessors, (27), 4 states have call successors, (9), 3 states have call predecessors, (9), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2021-08-30 17:46:17,738 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 608 transitions. [2021-08-30 17:46:17,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-08-30 17:46:17,739 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:46:17,739 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:46:17,745 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-08-30 17:46:17,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:46:17,945 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_list_delErr0REQUIRES_VIOLATION === [master_xferErr0REQUIRES_VIOLATION, master_xferErr1REQUIRES_VIOLATION, master_xferErr2REQUIRES_VIOLATION, master_xferErr3REQUIRES_VIOLATION (and 142 more)] === [2021-08-30 17:46:17,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:46:17,946 INFO L82 PathProgramCache]: Analyzing trace with hash -1984782888, now seen corresponding path program 1 times [2021-08-30 17:46:17,946 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:46:17,946 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1495609891] [2021-08-30 17:46:17,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:46:17,946 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:46:17,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:46:17,947 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 17:46:17,948 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-08-30 17:46:18,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:46:18,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 22 conjunts are in the unsatisfiable core [2021-08-30 17:46:18,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:46:18,190 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-08-30 17:46:18,195 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-08-30 17:46:18,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:46:18,249 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:46:18,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:46:18,414 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:46:18,414 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1495609891] [2021-08-30 17:46:18,414 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1495609891] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 17:46:18,414 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 17:46:18,414 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-08-30 17:46:18,414 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61344616] [2021-08-30 17:46:18,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-30 17:46:18,414 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:46:18,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-30 17:46:18,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-30 17:46:18,415 INFO L87 Difference]: Start difference. First operand 502 states and 608 transitions. Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 4 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2021-08-30 17:46:21,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:46:21,616 INFO L93 Difference]: Finished difference Result 465 states and 537 transitions. [2021-08-30 17:46:21,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-30 17:46:21,616 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 4 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 23 [2021-08-30 17:46:21,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:46:21,617 INFO L225 Difference]: With dead ends: 465 [2021-08-30 17:46:21,618 INFO L226 Difference]: Without dead ends: 454 [2021-08-30 17:46:21,618 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 82.33ms TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-08-30 17:46:21,618 INFO L928 BasicCegarLoop]: 70 mSDtfsCounter, 30 mSDsluCounter, 2187 mSDsCounter, 0 mSdLazyCounter, 2354 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2790.30ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 2358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.97ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3143.45ms IncrementalHoareTripleChecker+Time [2021-08-30 17:46:21,618 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 426 Invalid, 2358 Unknown, 0 Unchecked, 6.97ms Time], IncrementalHoareTripleChecker [4 Valid, 2354 Invalid, 0 Unknown, 0 Unchecked, 3143.45ms Time] [2021-08-30 17:46:21,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2021-08-30 17:46:21,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 446. [2021-08-30 17:46:21,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 256 states have (on average 1.69140625) internal successors, (433), 375 states have internal predecessors, (433), 39 states have call successors, (39), 30 states have call predecessors, (39), 34 states have return successors, (51), 43 states have call predecessors, (51), 38 states have call successors, (51) [2021-08-30 17:46:21,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 523 transitions. [2021-08-30 17:46:21,624 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 523 transitions. Word has length 23 [2021-08-30 17:46:21,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:46:21,625 INFO L470 AbstractCegarLoop]: Abstraction has 446 states and 523 transitions. [2021-08-30 17:46:21,625 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 4 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2021-08-30 17:46:21,625 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 523 transitions. [2021-08-30 17:46:21,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-08-30 17:46:21,625 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:46:21,626 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:46:21,636 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-08-30 17:46:21,832 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:46:21,832 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_destroy_msgsErr0REQUIRES_VIOLATION === [master_xferErr0REQUIRES_VIOLATION, master_xferErr1REQUIRES_VIOLATION, master_xferErr2REQUIRES_VIOLATION, master_xferErr3REQUIRES_VIOLATION (and 142 more)] === [2021-08-30 17:46:21,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:46:21,833 INFO L82 PathProgramCache]: Analyzing trace with hash 2091962744, now seen corresponding path program 1 times [2021-08-30 17:46:21,833 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:46:21,833 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1866859901] [2021-08-30 17:46:21,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:46:21,834 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:46:21,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:46:21,834 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 17:46:21,835 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-08-30 17:46:21,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:46:21,943 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 17 conjunts are in the unsatisfiable core [2021-08-30 17:46:21,944 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:46:21,956 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-08-30 17:46:21,957 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 [2021-08-30 17:46:22,039 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-30 17:46:22,039 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 24 [2021-08-30 17:46:22,103 INFO L354 Elim1Store]: treesize reduction 38, result has 39.7 percent of original size [2021-08-30 17:46:22,103 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 29 treesize of output 46 [2021-08-30 17:46:22,284 INFO L354 Elim1Store]: treesize reduction 2, result has 92.0 percent of original size [2021-08-30 17:46:22,285 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 77 [2021-08-30 17:46:22,793 INFO L354 Elim1Store]: treesize reduction 31, result has 50.8 percent of original size [2021-08-30 17:46:22,794 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 71 treesize of output 95 [2021-08-30 17:46:24,110 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-30 17:46:24,110 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:46:24,354 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-30 17:46:24,354 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:46:24,354 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1866859901] [2021-08-30 17:46:24,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1866859901] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-30 17:46:24,354 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-30 17:46:24,354 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 12 [2021-08-30 17:46:24,354 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793857856] [2021-08-30 17:46:24,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-08-30 17:46:24,355 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:46:24,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-08-30 17:46:24,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2021-08-30 17:46:24,355 INFO L87 Difference]: Start difference. First operand 446 states and 523 transitions. Second operand has 13 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 10 states have internal predecessors, (32), 6 states have call successors, (11), 6 states have call predecessors, (11), 6 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) [2021-08-30 17:46:25,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:46:25,643 INFO L93 Difference]: Finished difference Result 446 states and 522 transitions. [2021-08-30 17:46:25,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-30 17:46:25,644 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 10 states have internal predecessors, (32), 6 states have call successors, (11), 6 states have call predecessors, (11), 6 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) Word has length 26 [2021-08-30 17:46:25,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:46:25,645 INFO L225 Difference]: With dead ends: 446 [2021-08-30 17:46:25,645 INFO L226 Difference]: Without dead ends: 446 [2021-08-30 17:46:25,645 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 32 SyntacticMatches, 8 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 232.54ms TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2021-08-30 17:46:25,646 INFO L928 BasicCegarLoop]: 68 mSDtfsCounter, 3 mSDsluCounter, 921 mSDsCounter, 0 mSdLazyCounter, 1022 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1113.20ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 1732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.21ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1022 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 710 IncrementalHoareTripleChecker+Unchecked, 1254.49ms IncrementalHoareTripleChecker+Time [2021-08-30 17:46:25,646 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 248 Invalid, 1732 Unknown, 0 Unchecked, 3.21ms Time], IncrementalHoareTripleChecker [0 Valid, 1022 Invalid, 0 Unknown, 710 Unchecked, 1254.49ms Time] [2021-08-30 17:46:25,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2021-08-30 17:46:25,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 446. [2021-08-30 17:46:25,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 256 states have (on average 1.6875) internal successors, (432), 375 states have internal predecessors, (432), 39 states have call successors, (39), 30 states have call predecessors, (39), 34 states have return successors, (51), 43 states have call predecessors, (51), 38 states have call successors, (51) [2021-08-30 17:46:25,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 522 transitions. [2021-08-30 17:46:25,651 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 522 transitions. Word has length 26 [2021-08-30 17:46:25,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:46:25,652 INFO L470 AbstractCegarLoop]: Abstraction has 446 states and 522 transitions. [2021-08-30 17:46:25,652 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 10 states have internal predecessors, (32), 6 states have call successors, (11), 6 states have call predecessors, (11), 6 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) [2021-08-30 17:46:25,652 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 522 transitions. [2021-08-30 17:46:25,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-08-30 17:46:25,652 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:46:25,652 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:46:25,660 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-08-30 17:46:25,858 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:46:25,859 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_destroy_msgsErr1REQUIRES_VIOLATION === [master_xferErr0REQUIRES_VIOLATION, master_xferErr1REQUIRES_VIOLATION, master_xferErr2REQUIRES_VIOLATION, master_xferErr3REQUIRES_VIOLATION (and 142 more)] === [2021-08-30 17:46:25,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:46:25,860 INFO L82 PathProgramCache]: Analyzing trace with hash 2091962745, now seen corresponding path program 1 times [2021-08-30 17:46:25,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:46:25,860 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1822180807] [2021-08-30 17:46:25,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:46:25,860 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:46:25,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:46:25,861 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 17:46:25,861 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-08-30 17:46:25,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:46:25,960 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 20 conjunts are in the unsatisfiable core [2021-08-30 17:46:25,961 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:46:25,974 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-08-30 17:46:25,974 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 [2021-08-30 17:46:25,991 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-08-30 17:46:26,077 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-30 17:46:26,078 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 22 [2021-08-30 17:46:26,099 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 [2021-08-30 17:46:28,168 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-08-30 17:46:28,168 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 36 treesize of output 38 [2021-08-30 17:46:28,182 INFO L354 Elim1Store]: treesize reduction 9, result has 64.0 percent of original size [2021-08-30 17:46:28,182 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 30 treesize of output 39 [2021-08-30 17:46:28,240 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-08-30 17:46:30,316 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 2 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:46:30,317 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:46:38,743 WARN L210 SmtUtils]: Spent 6.03s on a formula simplification that was a NOOP. DAG size: 27 [2021-08-30 17:46:43,190 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:46:43,190 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:46:43,190 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1822180807] [2021-08-30 17:46:43,191 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1822180807] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-30 17:46:43,194 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-30 17:46:43,194 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-08-30 17:46:43,194 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092012918] [2021-08-30 17:46:43,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-08-30 17:46:43,194 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:46:43,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-30 17:46:43,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=91, Unknown=3, NotChecked=0, Total=132 [2021-08-30 17:46:43,195 INFO L87 Difference]: Start difference. First operand 446 states and 522 transitions. Second operand has 12 states, 11 states have (on average 3.090909090909091) internal successors, (34), 11 states have internal predecessors, (34), 5 states have call successors, (11), 9 states have call predecessors, (11), 6 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2021-08-30 17:46:56,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:46:56,391 INFO L93 Difference]: Finished difference Result 637 states and 732 transitions. [2021-08-30 17:46:56,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-30 17:46:56,391 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.090909090909091) internal successors, (34), 11 states have internal predecessors, (34), 5 states have call successors, (11), 9 states have call predecessors, (11), 6 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 26 [2021-08-30 17:46:56,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:46:56,393 INFO L225 Difference]: With dead ends: 637 [2021-08-30 17:46:56,393 INFO L226 Difference]: Without dead ends: 637 [2021-08-30 17:46:56,393 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 40 SyntacticMatches, 3 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 26570.99ms TimeCoverageRelationStatistics Valid=84, Invalid=180, Unknown=8, NotChecked=0, Total=272 [2021-08-30 17:46:56,394 INFO L928 BasicCegarLoop]: 80 mSDtfsCounter, 505 mSDsluCounter, 1562 mSDsCounter, 0 mSdLazyCounter, 2382 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2658.88ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 516 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 4553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.61ms SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 2382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2080 IncrementalHoareTripleChecker+Unchecked, 3018.96ms IncrementalHoareTripleChecker+Time [2021-08-30 17:46:56,394 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [516 Valid, 198 Invalid, 4553 Unknown, 0 Unchecked, 10.61ms Time], IncrementalHoareTripleChecker [91 Valid, 2382 Invalid, 0 Unknown, 2080 Unchecked, 3018.96ms Time] [2021-08-30 17:46:56,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states. [2021-08-30 17:46:56,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 515. [2021-08-30 17:46:56,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 515 states, 311 states have (on average 1.6881028938906752) internal successors, (525), 433 states have internal predecessors, (525), 46 states have call successors, (46), 35 states have call predecessors, (46), 41 states have return successors, (61), 49 states have call predecessors, (61), 45 states have call successors, (61) [2021-08-30 17:46:56,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 632 transitions. [2021-08-30 17:46:56,401 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 632 transitions. Word has length 26 [2021-08-30 17:46:56,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:46:56,401 INFO L470 AbstractCegarLoop]: Abstraction has 515 states and 632 transitions. [2021-08-30 17:46:56,401 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.090909090909091) internal successors, (34), 11 states have internal predecessors, (34), 5 states have call successors, (11), 9 states have call predecessors, (11), 6 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2021-08-30 17:46:56,401 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 632 transitions. [2021-08-30 17:46:56,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-08-30 17:46:56,402 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:46:56,402 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:46:56,411 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-08-30 17:46:56,608 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:46:56,609 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_destroy_msgsErr2REQUIRES_VIOLATION === [master_xferErr0REQUIRES_VIOLATION, master_xferErr1REQUIRES_VIOLATION, master_xferErr2REQUIRES_VIOLATION, master_xferErr3REQUIRES_VIOLATION (and 142 more)] === [2021-08-30 17:46:56,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:46:56,609 INFO L82 PathProgramCache]: Analyzing trace with hash 331508985, now seen corresponding path program 1 times [2021-08-30 17:46:56,609 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:46:56,609 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1562600284] [2021-08-30 17:46:56,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:46:56,609 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:46:56,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:46:56,610 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 17:46:56,611 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-08-30 17:46:56,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:46:56,708 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 12 conjunts are in the unsatisfiable core [2021-08-30 17:46:56,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:46:56,773 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2021-08-30 17:46:56,785 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-08-30 17:46:56,785 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:46:56,799 INFO L354 Elim1Store]: treesize reduction 5, result has 58.3 percent of original size [2021-08-30 17:46:56,799 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 21 [2021-08-30 17:46:56,854 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-08-30 17:46:56,854 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:46:56,854 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1562600284] [2021-08-30 17:46:56,854 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1562600284] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 17:46:56,854 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 17:46:56,855 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-08-30 17:46:56,855 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857735317] [2021-08-30 17:46:56,855 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-30 17:46:56,855 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:46:56,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-30 17:46:56,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-30 17:46:56,855 INFO L87 Difference]: Start difference. First operand 515 states and 632 transitions. Second operand has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2021-08-30 17:46:58,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:46:58,290 INFO L93 Difference]: Finished difference Result 530 states and 650 transitions. [2021-08-30 17:46:58,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-30 17:46:58,290 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) Word has length 28 [2021-08-30 17:46:58,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:46:58,292 INFO L225 Difference]: With dead ends: 530 [2021-08-30 17:46:58,292 INFO L226 Difference]: Without dead ends: 530 [2021-08-30 17:46:58,292 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 51 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 23.49ms TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-08-30 17:46:58,292 INFO L928 BasicCegarLoop]: 72 mSDtfsCounter, 19 mSDsluCounter, 891 mSDsCounter, 0 mSdLazyCounter, 1326 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1246.32ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 1329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.08ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1407.39ms IncrementalHoareTripleChecker+Time [2021-08-30 17:46:58,293 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 268 Invalid, 1329 Unknown, 0 Unchecked, 3.08ms Time], IncrementalHoareTripleChecker [3 Valid, 1326 Invalid, 0 Unknown, 0 Unchecked, 1407.39ms Time] [2021-08-30 17:46:58,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2021-08-30 17:46:58,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 515. [2021-08-30 17:46:58,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 515 states, 311 states have (on average 1.684887459807074) internal successors, (524), 433 states have internal predecessors, (524), 46 states have call successors, (46), 35 states have call predecessors, (46), 41 states have return successors, (61), 49 states have call predecessors, (61), 45 states have call successors, (61) [2021-08-30 17:46:58,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 631 transitions. [2021-08-30 17:46:58,299 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 631 transitions. Word has length 28 [2021-08-30 17:46:58,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:46:58,300 INFO L470 AbstractCegarLoop]: Abstraction has 515 states and 631 transitions. [2021-08-30 17:46:58,300 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2021-08-30 17:46:58,300 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 631 transitions. [2021-08-30 17:46:58,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-08-30 17:46:58,301 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:46:58,301 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:46:58,311 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Ended with exit code 0 [2021-08-30 17:46:58,507 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:46:58,508 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_destroy_msgsErr3REQUIRES_VIOLATION === [master_xferErr0REQUIRES_VIOLATION, master_xferErr1REQUIRES_VIOLATION, master_xferErr2REQUIRES_VIOLATION, master_xferErr3REQUIRES_VIOLATION (and 142 more)] === [2021-08-30 17:46:58,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:46:58,508 INFO L82 PathProgramCache]: Analyzing trace with hash 331508986, now seen corresponding path program 1 times [2021-08-30 17:46:58,508 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:46:58,508 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1675717625] [2021-08-30 17:46:58,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:46:58,508 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:46:58,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:46:58,510 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 17:46:58,510 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-08-30 17:46:58,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:46:58,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 23 conjunts are in the unsatisfiable core [2021-08-30 17:46:58,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:46:58,789 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 26 [2021-08-30 17:46:58,797 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2021-08-30 17:46:58,821 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-08-30 17:46:58,821 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:46:58,901 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-30 17:46:58,901 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 42 [2021-08-30 17:46:59,233 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-08-30 17:46:59,233 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:46:59,233 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1675717625] [2021-08-30 17:46:59,234 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1675717625] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 17:46:59,234 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 17:46:59,234 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-08-30 17:46:59,234 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931503406] [2021-08-30 17:46:59,234 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-30 17:46:59,234 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:46:59,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-30 17:46:59,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-30 17:46:59,235 INFO L87 Difference]: Start difference. First operand 515 states and 631 transitions. Second operand has 8 states, 7 states have (on average 4.857142857142857) internal successors, (34), 8 states have internal predecessors, (34), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) [2021-08-30 17:47:02,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:47:02,834 INFO L93 Difference]: Finished difference Result 531 states and 651 transitions. [2021-08-30 17:47:02,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-30 17:47:02,835 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.857142857142857) internal successors, (34), 8 states have internal predecessors, (34), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) Word has length 28 [2021-08-30 17:47:02,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:47:02,837 INFO L225 Difference]: With dead ends: 531 [2021-08-30 17:47:02,837 INFO L226 Difference]: Without dead ends: 531 [2021-08-30 17:47:02,837 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 125.62ms TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-08-30 17:47:02,837 INFO L928 BasicCegarLoop]: 72 mSDtfsCounter, 25 mSDsluCounter, 1573 mSDsCounter, 0 mSdLazyCounter, 1995 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3202.15ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 2000 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.53ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1995 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3553.81ms IncrementalHoareTripleChecker+Time [2021-08-30 17:47:02,837 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 396 Invalid, 2000 Unknown, 0 Unchecked, 4.53ms Time], IncrementalHoareTripleChecker [5 Valid, 1995 Invalid, 0 Unknown, 0 Unchecked, 3553.81ms Time] [2021-08-30 17:47:02,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2021-08-30 17:47:02,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 515. [2021-08-30 17:47:02,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 515 states, 311 states have (on average 1.6816720257234727) internal successors, (523), 433 states have internal predecessors, (523), 46 states have call successors, (46), 35 states have call predecessors, (46), 41 states have return successors, (61), 49 states have call predecessors, (61), 45 states have call successors, (61) [2021-08-30 17:47:02,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 630 transitions. [2021-08-30 17:47:02,844 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 630 transitions. Word has length 28 [2021-08-30 17:47:02,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:47:02,844 INFO L470 AbstractCegarLoop]: Abstraction has 515 states and 630 transitions. [2021-08-30 17:47:02,844 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.857142857142857) internal successors, (34), 8 states have internal predecessors, (34), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) [2021-08-30 17:47:02,845 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 630 transitions. [2021-08-30 17:47:02,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-08-30 17:47:02,845 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:47:02,845 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:47:02,860 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-08-30 17:47:03,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:47:03,056 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting entry_pointErr19ASSERT_VIOLATIONMEMORY_FREE === [master_xferErr0REQUIRES_VIOLATION, master_xferErr1REQUIRES_VIOLATION, master_xferErr2REQUIRES_VIOLATION, master_xferErr3REQUIRES_VIOLATION (and 142 more)] === [2021-08-30 17:47:03,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:47:03,056 INFO L82 PathProgramCache]: Analyzing trace with hash -457736982, now seen corresponding path program 1 times [2021-08-30 17:47:03,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:47:03,056 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [566301302] [2021-08-30 17:47:03,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:47:03,057 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:47:03,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:47:03,057 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 17:47:03,059 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-08-30 17:47:03,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:47:03,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-30 17:47:03,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:47:03,197 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-08-30 17:47:03,198 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:47:03,242 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-08-30 17:47:03,242 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:47:03,242 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [566301302] [2021-08-30 17:47:03,243 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [566301302] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 17:47:03,243 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 17:47:03,243 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-08-30 17:47:03,243 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356164733] [2021-08-30 17:47:03,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-30 17:47:03,243 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:47:03,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-30 17:47:03,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-30 17:47:03,244 INFO L87 Difference]: Start difference. First operand 515 states and 630 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-08-30 17:47:04,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:47:04,621 INFO L93 Difference]: Finished difference Result 568 states and 691 transitions. [2021-08-30 17:47:04,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-30 17:47:04,621 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 29 [2021-08-30 17:47:04,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:47:04,623 INFO L225 Difference]: With dead ends: 568 [2021-08-30 17:47:04,623 INFO L226 Difference]: Without dead ends: 568 [2021-08-30 17:47:04,623 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.29ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-30 17:47:04,624 INFO L928 BasicCegarLoop]: 79 mSDtfsCounter, 50 mSDsluCounter, 1295 mSDsCounter, 0 mSdLazyCounter, 1463 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1210.14ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 1464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.82ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1363.25ms IncrementalHoareTripleChecker+Time [2021-08-30 17:47:04,624 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [57 Valid, 311 Invalid, 1464 Unknown, 0 Unchecked, 2.82ms Time], IncrementalHoareTripleChecker [1 Valid, 1463 Invalid, 0 Unknown, 0 Unchecked, 1363.25ms Time] [2021-08-30 17:47:04,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2021-08-30 17:47:04,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 515. [2021-08-30 17:47:04,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 515 states, 311 states have (on average 1.6784565916398715) internal successors, (522), 433 states have internal predecessors, (522), 46 states have call successors, (46), 35 states have call predecessors, (46), 41 states have return successors, (61), 49 states have call predecessors, (61), 45 states have call successors, (61) [2021-08-30 17:47:04,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 629 transitions. [2021-08-30 17:47:04,630 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 629 transitions. Word has length 29 [2021-08-30 17:47:04,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:47:04,631 INFO L470 AbstractCegarLoop]: Abstraction has 515 states and 629 transitions. [2021-08-30 17:47:04,631 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-08-30 17:47:04,631 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 629 transitions. [2021-08-30 17:47:04,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-08-30 17:47:04,631 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:47:04,631 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:47:04,640 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Ended with exit code 0 [2021-08-30 17:47:04,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:47:04,840 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting entry_pointErr2REQUIRES_VIOLATION === [master_xferErr0REQUIRES_VIOLATION, master_xferErr1REQUIRES_VIOLATION, master_xferErr2REQUIRES_VIOLATION, master_xferErr3REQUIRES_VIOLATION (and 142 more)] === [2021-08-30 17:47:04,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:47:04,840 INFO L82 PathProgramCache]: Analyzing trace with hash -457736974, now seen corresponding path program 1 times [2021-08-30 17:47:04,840 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:47:04,841 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2124173588] [2021-08-30 17:47:04,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:47:04,841 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:47:04,841 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:47:04,841 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 17:47:04,842 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-08-30 17:47:04,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:47:04,945 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-30 17:47:04,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:47:04,965 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-08-30 17:47:05,024 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-08-30 17:47:05,024 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 16 treesize of output 21 [2021-08-30 17:47:05,041 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-30 17:47:05,041 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:47:05,187 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-30 17:47:05,187 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:47:05,187 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2124173588] [2021-08-30 17:47:05,187 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2124173588] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-30 17:47:05,187 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-30 17:47:05,187 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 7 [2021-08-30 17:47:05,187 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886018550] [2021-08-30 17:47:05,188 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-30 17:47:05,188 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:47:05,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-30 17:47:05,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-08-30 17:47:05,188 INFO L87 Difference]: Start difference. First operand 515 states and 629 transitions. Second operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 2 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2021-08-30 17:47:06,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:47:06,932 INFO L93 Difference]: Finished difference Result 630 states and 779 transitions. [2021-08-30 17:47:06,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-30 17:47:06,933 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 2 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 29 [2021-08-30 17:47:06,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:47:06,935 INFO L225 Difference]: With dead ends: 630 [2021-08-30 17:47:06,935 INFO L226 Difference]: Without dead ends: 630 [2021-08-30 17:47:06,935 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 45 SyntacticMatches, 6 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 99.32ms TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-08-30 17:47:06,935 INFO L928 BasicCegarLoop]: 72 mSDtfsCounter, 209 mSDsluCounter, 1033 mSDsCounter, 0 mSdLazyCounter, 2019 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1487.50ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 2538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.40ms SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 2019 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 469 IncrementalHoareTripleChecker+Unchecked, 1708.87ms IncrementalHoareTripleChecker+Time [2021-08-30 17:47:06,935 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [219 Valid, 165 Invalid, 2538 Unknown, 0 Unchecked, 5.40ms Time], IncrementalHoareTripleChecker [50 Valid, 2019 Invalid, 0 Unknown, 469 Unchecked, 1708.87ms Time] [2021-08-30 17:47:06,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2021-08-30 17:47:06,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 521. [2021-08-30 17:47:06,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 521 states, 317 states have (on average 1.6719242902208202) internal successors, (530), 438 states have internal predecessors, (530), 46 states have call successors, (46), 35 states have call predecessors, (46), 41 states have return successors, (61), 50 states have call predecessors, (61), 45 states have call successors, (61) [2021-08-30 17:47:06,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 637 transitions. [2021-08-30 17:47:06,942 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 637 transitions. Word has length 29 [2021-08-30 17:47:06,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:47:06,942 INFO L470 AbstractCegarLoop]: Abstraction has 521 states and 637 transitions. [2021-08-30 17:47:06,943 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 2 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2021-08-30 17:47:06,943 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 637 transitions. [2021-08-30 17:47:06,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-08-30 17:47:06,943 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:47:06,943 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:47:06,960 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Ended with exit code 0 [2021-08-30 17:47:07,150 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:47:07,150 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting entry_pointErr3REQUIRES_VIOLATION === [master_xferErr0REQUIRES_VIOLATION, master_xferErr1REQUIRES_VIOLATION, master_xferErr2REQUIRES_VIOLATION, master_xferErr3REQUIRES_VIOLATION (and 142 more)] === [2021-08-30 17:47:07,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:47:07,151 INFO L82 PathProgramCache]: Analyzing trace with hash -457736973, now seen corresponding path program 1 times [2021-08-30 17:47:07,151 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:47:07,151 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1453649025] [2021-08-30 17:47:07,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:47:07,152 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:47:07,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:47:07,152 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 17:47:07,154 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-08-30 17:47:07,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:47:07,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 16 conjunts are in the unsatisfiable core [2021-08-30 17:47:07,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:47:07,290 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-08-30 17:47:07,295 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-08-30 17:47:09,456 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-08-30 17:47:09,456 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 28 treesize of output 30 [2021-08-30 17:47:09,464 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-08-30 17:47:09,465 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 22 [2021-08-30 17:47:09,500 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-30 17:47:09,500 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:47:16,716 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ldv_malloc_#res.base_115| (_ BitVec 32)) (v_entry_point_~cfg~2.base_BEFORE_CALL_4 (_ BitVec 32)) (v_entry_point_~cfg~2.offset_BEFORE_CALL_2 (_ BitVec 32))) (or (exists ((|v_ldv_malloc_#res.base_114| (_ BitVec 32))) (and (or (exists ((v_ldv_malloc_~size_107 (_ BitVec 32))) (not (bvule (bvadd (_ bv4 32) v_entry_point_~cfg~2.offset_BEFORE_CALL_2) (select (store |c_old(#length)| |v_ldv_malloc_#res.base_114| v_ldv_malloc_~size_107) v_entry_point_~cfg~2.base_BEFORE_CALL_4)))) (not (bvule v_entry_point_~cfg~2.offset_BEFORE_CALL_2 (bvadd (_ bv4 32) v_entry_point_~cfg~2.offset_BEFORE_CALL_2)))) (= (_ bv0 1) (bvneg (select |c_old(#valid)| |v_ldv_malloc_#res.base_114|))))) (and (bvule v_entry_point_~cfg~2.offset_BEFORE_CALL_2 (bvadd (_ bv4 32) v_entry_point_~cfg~2.offset_BEFORE_CALL_2)) (forall ((ldv_malloc_~size (_ BitVec 32))) (bvule (bvadd (_ bv4 32) v_entry_point_~cfg~2.offset_BEFORE_CALL_2) (select (store |c_#length| |v_ldv_malloc_#res.base_115| ldv_malloc_~size) v_entry_point_~cfg~2.base_BEFORE_CALL_4)))) (not (= (_ bv0 1) (bvneg (bvneg (select |c_#valid| |v_ldv_malloc_#res.base_115|))))))) is different from false [2021-08-30 17:47:19,431 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 27 treesize of output 25 [2021-08-30 17:47:19,495 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 1 not checked. [2021-08-30 17:47:19,495 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:47:19,495 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1453649025] [2021-08-30 17:47:19,495 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1453649025] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-30 17:47:19,495 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-30 17:47:19,495 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2021-08-30 17:47:19,496 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035426967] [2021-08-30 17:47:19,496 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-08-30 17:47:19,496 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:47:19,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-08-30 17:47:19,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=4, NotChecked=26, Total=240 [2021-08-30 17:47:19,497 INFO L87 Difference]: Start difference. First operand 521 states and 637 transitions. Second operand has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 14 states have internal predecessors, (31), 3 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2021-08-30 17:47:31,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:47:31,445 INFO L93 Difference]: Finished difference Result 684 states and 843 transitions. [2021-08-30 17:47:31,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-30 17:47:31,446 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 14 states have internal predecessors, (31), 3 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) Word has length 29 [2021-08-30 17:47:31,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:47:31,448 INFO L225 Difference]: With dead ends: 684 [2021-08-30 17:47:31,448 INFO L226 Difference]: Without dead ends: 684 [2021-08-30 17:47:31,448 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 45 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 18688.75ms TimeCoverageRelationStatistics Valid=62, Invalid=278, Unknown=6, NotChecked=34, Total=380 [2021-08-30 17:47:31,448 INFO L928 BasicCegarLoop]: 67 mSDtfsCounter, 261 mSDsluCounter, 2145 mSDsCounter, 0 mSdLazyCounter, 2956 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3338.93ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 6202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.14ms SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 2956 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 3186 IncrementalHoareTripleChecker+Unchecked, 3744.88ms IncrementalHoareTripleChecker+Time [2021-08-30 17:47:31,449 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [275 Valid, 326 Invalid, 6202 Unknown, 0 Unchecked, 15.14ms Time], IncrementalHoareTripleChecker [60 Valid, 2956 Invalid, 0 Unknown, 3186 Unchecked, 3744.88ms Time] [2021-08-30 17:47:31,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 684 states. [2021-08-30 17:47:31,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 684 to 535. [2021-08-30 17:47:31,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 329 states have (on average 1.6656534954407294) internal successors, (548), 450 states have internal predecessors, (548), 48 states have call successors, (48), 35 states have call predecessors, (48), 41 states have return successors, (65), 52 states have call predecessors, (65), 47 states have call successors, (65) [2021-08-30 17:47:31,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 661 transitions. [2021-08-30 17:47:31,456 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 661 transitions. Word has length 29 [2021-08-30 17:47:31,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:47:31,456 INFO L470 AbstractCegarLoop]: Abstraction has 535 states and 661 transitions. [2021-08-30 17:47:31,456 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 14 states have internal predecessors, (31), 3 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2021-08-30 17:47:31,456 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 661 transitions. [2021-08-30 17:47:31,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-08-30 17:47:31,457 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:47:31,457 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:47:31,466 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Ended with exit code 0 [2021-08-30 17:47:31,663 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:47:31,664 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting entry_pointErr2REQUIRES_VIOLATION === [master_xferErr0REQUIRES_VIOLATION, master_xferErr1REQUIRES_VIOLATION, master_xferErr2REQUIRES_VIOLATION, master_xferErr3REQUIRES_VIOLATION (and 142 more)] === [2021-08-30 17:47:31,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:47:31,664 INFO L82 PathProgramCache]: Analyzing trace with hash -963295599, now seen corresponding path program 1 times [2021-08-30 17:47:31,664 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:47:31,664 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2031549411] [2021-08-30 17:47:31,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:47:31,665 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:47:31,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:47:31,665 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 17:47:31,667 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-08-30 17:47:31,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:47:31,768 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-30 17:47:31,769 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:47:31,843 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-30 17:47:31,843 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:47:31,912 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-08-30 17:47:31,913 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:47:31,913 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2031549411] [2021-08-30 17:47:31,913 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2031549411] provided 1 perfect and 1 imperfect interpolant sequences [2021-08-30 17:47:31,913 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-30 17:47:31,913 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2021-08-30 17:47:31,913 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509732238] [2021-08-30 17:47:31,913 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-30 17:47:31,913 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:47:31,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-30 17:47:31,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-30 17:47:31,914 INFO L87 Difference]: Start difference. First operand 535 states and 661 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-08-30 17:47:33,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:47:33,391 INFO L93 Difference]: Finished difference Result 464 states and 544 transitions. [2021-08-30 17:47:33,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-30 17:47:33,391 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 29 [2021-08-30 17:47:33,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:47:33,392 INFO L225 Difference]: With dead ends: 464 [2021-08-30 17:47:33,393 INFO L226 Difference]: Without dead ends: 464 [2021-08-30 17:47:33,393 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.88ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-30 17:47:33,393 INFO L928 BasicCegarLoop]: 77 mSDtfsCounter, 5 mSDsluCounter, 1202 mSDsCounter, 0 mSdLazyCounter, 1320 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1313.17ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 1320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.82ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1463.51ms IncrementalHoareTripleChecker+Time [2021-08-30 17:47:33,393 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 306 Invalid, 1320 Unknown, 0 Unchecked, 2.82ms Time], IncrementalHoareTripleChecker [0 Valid, 1320 Invalid, 0 Unknown, 0 Unchecked, 1463.51ms Time] [2021-08-30 17:47:33,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2021-08-30 17:47:33,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 462. [2021-08-30 17:47:33,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 272 states have (on average 1.650735294117647) internal successors, (449), 389 states have internal predecessors, (449), 40 states have call successors, (40), 30 states have call predecessors, (40), 35 states have return successors, (53), 45 states have call predecessors, (53), 39 states have call successors, (53) [2021-08-30 17:47:33,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 542 transitions. [2021-08-30 17:47:33,399 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 542 transitions. Word has length 29 [2021-08-30 17:47:33,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:47:33,399 INFO L470 AbstractCegarLoop]: Abstraction has 462 states and 542 transitions. [2021-08-30 17:47:33,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-08-30 17:47:33,399 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 542 transitions. [2021-08-30 17:47:33,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-08-30 17:47:33,399 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:47:33,399 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:47:33,409 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-08-30 17:47:33,606 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:47:33,606 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting entry_pointErr20ASSERT_VIOLATIONMEMORY_FREE === [master_xferErr0REQUIRES_VIOLATION, master_xferErr1REQUIRES_VIOLATION, master_xferErr2REQUIRES_VIOLATION, master_xferErr3REQUIRES_VIOLATION (and 142 more)] === [2021-08-30 17:47:33,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:47:33,607 INFO L82 PathProgramCache]: Analyzing trace with hash -417440209, now seen corresponding path program 1 times [2021-08-30 17:47:33,607 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:47:33,607 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [120250782] [2021-08-30 17:47:33,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:47:33,607 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:47:33,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:47:33,608 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 17:47:33,612 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-08-30 17:47:33,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:47:33,713 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-30 17:47:33,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:47:33,966 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-08-30 17:47:33,966 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:47:34,080 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-08-30 17:47:34,081 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:47:34,081 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [120250782] [2021-08-30 17:47:34,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [120250782] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-30 17:47:34,081 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-30 17:47:34,081 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4] total 9 [2021-08-30 17:47:34,081 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994477869] [2021-08-30 17:47:34,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-30 17:47:34,082 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:47:34,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-30 17:47:34,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-08-30 17:47:34,083 INFO L87 Difference]: Start difference. First operand 462 states and 542 transitions. Second operand has 10 states, 9 states have (on average 3.888888888888889) internal successors, (35), 8 states have internal predecessors, (35), 5 states have call successors, (11), 3 states have call predecessors, (11), 5 states have return successors, (8), 7 states have call predecessors, (8), 5 states have call successors, (8) [2021-08-30 17:47:36,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:47:36,471 INFO L93 Difference]: Finished difference Result 733 states and 848 transitions. [2021-08-30 17:47:36,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-30 17:47:36,471 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.888888888888889) internal successors, (35), 8 states have internal predecessors, (35), 5 states have call successors, (11), 3 states have call predecessors, (11), 5 states have return successors, (8), 7 states have call predecessors, (8), 5 states have call successors, (8) Word has length 30 [2021-08-30 17:47:36,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:47:36,473 INFO L225 Difference]: With dead ends: 733 [2021-08-30 17:47:36,473 INFO L226 Difference]: Without dead ends: 733 [2021-08-30 17:47:36,473 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 51 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 94.09ms TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-08-30 17:47:36,474 INFO L928 BasicCegarLoop]: 101 mSDtfsCounter, 369 mSDsluCounter, 1795 mSDsCounter, 0 mSdLazyCounter, 1730 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2098.75ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 379 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 2445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.10ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1730 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 702 IncrementalHoareTripleChecker+Unchecked, 2360.06ms IncrementalHoareTripleChecker+Time [2021-08-30 17:47:36,474 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [379 Valid, 247 Invalid, 2445 Unknown, 0 Unchecked, 5.10ms Time], IncrementalHoareTripleChecker [13 Valid, 1730 Invalid, 0 Unknown, 702 Unchecked, 2360.06ms Time] [2021-08-30 17:47:36,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2021-08-30 17:47:36,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 608. [2021-08-30 17:47:36,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 608 states, 384 states have (on average 1.6666666666666667) internal successors, (640), 501 states have internal predecessors, (640), 60 states have call successors, (60), 47 states have call predecessors, (60), 52 states have return successors, (87), 64 states have call predecessors, (87), 59 states have call successors, (87) [2021-08-30 17:47:36,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 608 states to 608 states and 787 transitions. [2021-08-30 17:47:36,496 INFO L78 Accepts]: Start accepts. Automaton has 608 states and 787 transitions. Word has length 30 [2021-08-30 17:47:36,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:47:36,497 INFO L470 AbstractCegarLoop]: Abstraction has 608 states and 787 transitions. [2021-08-30 17:47:36,497 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.888888888888889) internal successors, (35), 8 states have internal predecessors, (35), 5 states have call successors, (11), 3 states have call predecessors, (11), 5 states have return successors, (8), 7 states have call predecessors, (8), 5 states have call successors, (8) [2021-08-30 17:47:36,497 INFO L276 IsEmpty]: Start isEmpty. Operand 608 states and 787 transitions. [2021-08-30 17:47:36,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-08-30 17:47:36,497 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:47:36,498 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:47:36,508 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2021-08-30 17:47:36,704 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:47:36,704 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting entry_pointErr24ASSERT_VIOLATIONMEMORY_FREE === [master_xferErr0REQUIRES_VIOLATION, master_xferErr1REQUIRES_VIOLATION, master_xferErr2REQUIRES_VIOLATION, master_xferErr3REQUIRES_VIOLATION (and 142 more)] === [2021-08-30 17:47:36,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:47:36,705 INFO L82 PathProgramCache]: Analyzing trace with hash 1485738260, now seen corresponding path program 1 times [2021-08-30 17:47:36,705 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:47:36,705 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [951930927] [2021-08-30 17:47:36,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:47:36,705 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:47:36,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:47:36,706 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 17:47:36,707 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-08-30 17:47:36,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:47:36,812 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 13 conjunts are in the unsatisfiable core [2021-08-30 17:47:36,813 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:47:36,825 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-08-30 17:47:36,893 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-08-30 17:47:36,893 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 22 treesize of output 29 [2021-08-30 17:47:37,026 INFO L354 Elim1Store]: treesize reduction 20, result has 28.6 percent of original size [2021-08-30 17:47:37,026 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 29 treesize of output 32 [2021-08-30 17:47:37,065 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-30 17:47:37,066 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:47:45,388 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:47:45,388 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:47:45,388 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [951930927] [2021-08-30 17:47:45,388 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [951930927] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-30 17:47:45,388 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-30 17:47:45,388 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2021-08-30 17:47:45,388 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800134168] [2021-08-30 17:47:45,389 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-08-30 17:47:45,389 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:47:45,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-08-30 17:47:45,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=163, Unknown=4, NotChecked=0, Total=210 [2021-08-30 17:47:45,390 INFO L87 Difference]: Start difference. First operand 608 states and 787 transitions. Second operand has 15 states, 14 states have (on average 2.857142857142857) internal successors, (40), 12 states have internal predecessors, (40), 4 states have call successors, (8), 4 states have call predecessors, (8), 6 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2021-08-30 17:47:53,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:47:53,123 INFO L93 Difference]: Finished difference Result 613 states and 791 transitions. [2021-08-30 17:47:53,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-30 17:47:53,124 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.857142857142857) internal successors, (40), 12 states have internal predecessors, (40), 4 states have call successors, (8), 4 states have call predecessors, (8), 6 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) Word has length 34 [2021-08-30 17:47:53,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:47:53,125 INFO L225 Difference]: With dead ends: 613 [2021-08-30 17:47:53,125 INFO L226 Difference]: Without dead ends: 613 [2021-08-30 17:47:53,126 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 50 SyntacticMatches, 4 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 14225.77ms TimeCoverageRelationStatistics Valid=48, Invalid=187, Unknown=5, NotChecked=0, Total=240 [2021-08-30 17:47:53,126 INFO L928 BasicCegarLoop]: 69 mSDtfsCounter, 15 mSDsluCounter, 1300 mSDsCounter, 0 mSdLazyCounter, 1746 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1490.07ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 2161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.26ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1746 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 406 IncrementalHoareTripleChecker+Unchecked, 1680.30ms IncrementalHoareTripleChecker+Time [2021-08-30 17:47:53,126 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 355 Invalid, 2161 Unknown, 0 Unchecked, 4.26ms Time], IncrementalHoareTripleChecker [9 Valid, 1746 Invalid, 0 Unknown, 406 Unchecked, 1680.30ms Time] [2021-08-30 17:47:53,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2021-08-30 17:47:53,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 613. [2021-08-30 17:47:53,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 613 states, 388 states have (on average 1.6597938144329898) internal successors, (644), 506 states have internal predecessors, (644), 60 states have call successors, (60), 47 states have call predecessors, (60), 53 states have return successors, (87), 64 states have call predecessors, (87), 59 states have call successors, (87) [2021-08-30 17:47:53,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 613 states to 613 states and 791 transitions. [2021-08-30 17:47:53,133 INFO L78 Accepts]: Start accepts. Automaton has 613 states and 791 transitions. Word has length 34 [2021-08-30 17:47:53,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:47:53,134 INFO L470 AbstractCegarLoop]: Abstraction has 613 states and 791 transitions. [2021-08-30 17:47:53,134 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.857142857142857) internal successors, (40), 12 states have internal predecessors, (40), 4 states have call successors, (8), 4 states have call predecessors, (8), 6 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2021-08-30 17:47:53,134 INFO L276 IsEmpty]: Start isEmpty. Operand 613 states and 791 transitions. [2021-08-30 17:47:53,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-08-30 17:47:53,134 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:47:53,134 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:47:53,154 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Ended with exit code 0 [2021-08-30 17:47:53,344 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:47:53,347 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [master_xferErr0REQUIRES_VIOLATION, master_xferErr1REQUIRES_VIOLATION, master_xferErr2REQUIRES_VIOLATION, master_xferErr3REQUIRES_VIOLATION (and 142 more)] === [2021-08-30 17:47:53,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:47:53,347 INFO L82 PathProgramCache]: Analyzing trace with hash 219157383, now seen corresponding path program 1 times [2021-08-30 17:47:53,347 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:47:53,348 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1340159950] [2021-08-30 17:47:53,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:47:53,348 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:47:53,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:47:53,349 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 17:47:53,384 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-08-30 17:47:53,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:47:53,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 16 conjunts are in the unsatisfiable core [2021-08-30 17:47:53,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:47:53,630 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-30 17:47:53,630 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:47:57,763 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:47:57,764 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1340159950] [2021-08-30 17:47:57,764 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-30 17:47:57,764 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [836034259] [2021-08-30 17:47:57,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:47:57,764 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-08-30 17:47:57,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2021-08-30 17:47:57,765 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-08-30 17:47:57,766 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process [2021-08-30 17:47:57,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:47:57,933 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 18 conjunts are in the unsatisfiable core [2021-08-30 17:47:57,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:47:57,949 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-08-30 17:47:57,949 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 28 [2021-08-30 17:48:02,207 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-30 17:48:02,208 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:48:06,323 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-30 17:48:06,324 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1781722518] [2021-08-30 17:48:06,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:48:06,324 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-30 17:48:06,324 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-30 17:48:06,325 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-30 17:48:06,325 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2021-08-30 17:48:06,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:48:06,438 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 15 conjunts are in the unsatisfiable core [2021-08-30 17:48:06,439 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:48:06,560 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-30 17:48:06,560 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:48:10,678 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-30 17:48:10,678 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-08-30 17:48:10,678 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-08-30 17:48:10,678 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-08-30 17:48:10,679 INFO L627 BasicCegarLoop]: Counterexample might be feasible [2021-08-30 17:48:10,682 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK (145 of 146 remaining) [2021-08-30 17:48:10,683 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location master_xferErr0REQUIRES_VIOLATION (144 of 146 remaining) [2021-08-30 17:48:10,683 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location master_xferErr1REQUIRES_VIOLATION (143 of 146 remaining) [2021-08-30 17:48:10,683 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location master_xferErr2REQUIRES_VIOLATION (142 of 146 remaining) [2021-08-30 17:48:10,683 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location master_xferErr3REQUIRES_VIOLATION (141 of 146 remaining) [2021-08-30 17:48:10,683 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION (140 of 146 remaining) [2021-08-30 17:48:10,683 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION (139 of 146 remaining) [2021-08-30 17:48:10,683 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION (138 of 146 remaining) [2021-08-30 17:48:10,684 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION (137 of 146 remaining) [2021-08-30 17:48:10,684 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION (136 of 146 remaining) [2021-08-30 17:48:10,684 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION (135 of 146 remaining) [2021-08-30 17:48:10,684 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION (134 of 146 remaining) [2021-08-30 17:48:10,684 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION (133 of 146 remaining) [2021-08-30 17:48:10,684 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION (132 of 146 remaining) [2021-08-30 17:48:10,684 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION (131 of 146 remaining) [2021-08-30 17:48:10,684 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION (130 of 146 remaining) [2021-08-30 17:48:10,684 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION (129 of 146 remaining) [2021-08-30 17:48:10,684 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION (128 of 146 remaining) [2021-08-30 17:48:10,684 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION (127 of 146 remaining) [2021-08-30 17:48:10,684 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION (126 of 146 remaining) [2021-08-30 17:48:10,685 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION (125 of 146 remaining) [2021-08-30 17:48:10,685 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION (124 of 146 remaining) [2021-08-30 17:48:10,685 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION (123 of 146 remaining) [2021-08-30 17:48:10,685 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION (122 of 146 remaining) [2021-08-30 17:48:10,685 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION (121 of 146 remaining) [2021-08-30 17:48:10,685 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION (120 of 146 remaining) [2021-08-30 17:48:10,685 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION (119 of 146 remaining) [2021-08-30 17:48:10,685 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION (118 of 146 remaining) [2021-08-30 17:48:10,685 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION (117 of 146 remaining) [2021-08-30 17:48:10,685 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION (116 of 146 remaining) [2021-08-30 17:48:10,685 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION (115 of 146 remaining) [2021-08-30 17:48:10,685 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_i2c_transferErr0REQUIRES_VIOLATION (114 of 146 remaining) [2021-08-30 17:48:10,685 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_i2c_transferErr1REQUIRES_VIOLATION (113 of 146 remaining) [2021-08-30 17:48:10,685 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION (112 of 146 remaining) [2021-08-30 17:48:10,686 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION (111 of 146 remaining) [2021-08-30 17:48:10,686 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION (110 of 146 remaining) [2021-08-30 17:48:10,686 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION (109 of 146 remaining) [2021-08-30 17:48:10,686 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION (108 of 146 remaining) [2021-08-30 17:48:10,686 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION (107 of 146 remaining) [2021-08-30 17:48:10,686 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION (106 of 146 remaining) [2021-08-30 17:48:10,686 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION (105 of 146 remaining) [2021-08-30 17:48:10,686 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION (104 of 146 remaining) [2021-08-30 17:48:10,687 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION (103 of 146 remaining) [2021-08-30 17:48:10,687 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION (102 of 146 remaining) [2021-08-30 17:48:10,687 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION (101 of 146 remaining) [2021-08-30 17:48:10,687 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION (100 of 146 remaining) [2021-08-30 17:48:10,687 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION (99 of 146 remaining) [2021-08-30 17:48:10,687 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION (98 of 146 remaining) [2021-08-30 17:48:10,687 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION (97 of 146 remaining) [2021-08-30 17:48:10,687 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE (96 of 146 remaining) [2021-08-30 17:48:10,688 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE (95 of 146 remaining) [2021-08-30 17:48:10,688 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE (94 of 146 remaining) [2021-08-30 17:48:10,688 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE (93 of 146 remaining) [2021-08-30 17:48:10,688 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE (92 of 146 remaining) [2021-08-30 17:48:10,688 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE (91 of 146 remaining) [2021-08-30 17:48:10,688 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION (90 of 146 remaining) [2021-08-30 17:48:10,688 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION (89 of 146 remaining) [2021-08-30 17:48:10,688 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION (88 of 146 remaining) [2021-08-30 17:48:10,688 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION (87 of 146 remaining) [2021-08-30 17:48:10,688 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION (86 of 146 remaining) [2021-08-30 17:48:10,688 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION (85 of 146 remaining) [2021-08-30 17:48:10,688 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION (84 of 146 remaining) [2021-08-30 17:48:10,688 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION (83 of 146 remaining) [2021-08-30 17:48:10,689 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE (82 of 146 remaining) [2021-08-30 17:48:10,689 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE (81 of 146 remaining) [2021-08-30 17:48:10,689 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE (80 of 146 remaining) [2021-08-30 17:48:10,689 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE (79 of 146 remaining) [2021-08-30 17:48:10,689 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE (78 of 146 remaining) [2021-08-30 17:48:10,689 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE (77 of 146 remaining) [2021-08-30 17:48:10,689 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION (76 of 146 remaining) [2021-08-30 17:48:10,689 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION (75 of 146 remaining) [2021-08-30 17:48:10,689 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION (74 of 146 remaining) [2021-08-30 17:48:10,689 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION (73 of 146 remaining) [2021-08-30 17:48:10,689 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION (72 of 146 remaining) [2021-08-30 17:48:10,689 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION (71 of 146 remaining) [2021-08-30 17:48:10,689 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_m88ts2022_rd_regErr0REQUIRES_VIOLATION (70 of 146 remaining) [2021-08-30 17:48:10,689 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_m88ts2022_rd_regErr1REQUIRES_VIOLATION (69 of 146 remaining) [2021-08-30 17:48:10,689 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_m88ts2022_rd_regErr2REQUIRES_VIOLATION (68 of 146 remaining) [2021-08-30 17:48:10,689 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_m88ts2022_rd_regErr3REQUIRES_VIOLATION (67 of 146 remaining) [2021-08-30 17:48:10,689 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_m88ts2022_rd_regErr4REQUIRES_VIOLATION (66 of 146 remaining) [2021-08-30 17:48:10,690 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_m88ts2022_rd_regErr5REQUIRES_VIOLATION (65 of 146 remaining) [2021-08-30 17:48:10,690 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_m88ts2022_rd_regErr6REQUIRES_VIOLATION (64 of 146 remaining) [2021-08-30 17:48:10,690 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_m88ts2022_rd_regErr7REQUIRES_VIOLATION (63 of 146 remaining) [2021-08-30 17:48:10,690 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_m88ts2022_rd_regErr8REQUIRES_VIOLATION (62 of 146 remaining) [2021-08-30 17:48:10,690 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_m88ts2022_rd_regErr9REQUIRES_VIOLATION (61 of 146 remaining) [2021-08-30 17:48:10,690 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_m88ts2022_rd_regErr10REQUIRES_VIOLATION (60 of 146 remaining) [2021-08-30 17:48:10,690 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_m88ts2022_rd_regErr11REQUIRES_VIOLATION (59 of 146 remaining) [2021-08-30 17:48:10,690 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_m88ts2022_rd_regErr12REQUIRES_VIOLATION (58 of 146 remaining) [2021-08-30 17:48:10,690 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_m88ts2022_rd_regErr13REQUIRES_VIOLATION (57 of 146 remaining) [2021-08-30 17:48:10,690 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_m88ts2022_rd_regErr14REQUIRES_VIOLATION (56 of 146 remaining) [2021-08-30 17:48:10,690 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_m88ts2022_rd_regErr15REQUIRES_VIOLATION (55 of 146 remaining) [2021-08-30 17:48:10,690 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_m88ts2022_rd_regErr16REQUIRES_VIOLATION (54 of 146 remaining) [2021-08-30 17:48:10,690 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_m88ts2022_rd_regErr17REQUIRES_VIOLATION (53 of 146 remaining) [2021-08-30 17:48:10,690 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location alloc_fix_12Err0REQUIRES_VIOLATION (52 of 146 remaining) [2021-08-30 17:48:10,690 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location alloc_fix_12Err1REQUIRES_VIOLATION (51 of 146 remaining) [2021-08-30 17:48:10,690 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location alloc_fix_12Err2REQUIRES_VIOLATION (50 of 146 remaining) [2021-08-30 17:48:10,690 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location alloc_fix_12Err3REQUIRES_VIOLATION (49 of 146 remaining) [2021-08-30 17:48:10,691 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location alloc_fix_12Err4REQUIRES_VIOLATION (48 of 146 remaining) [2021-08-30 17:48:10,691 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location alloc_fix_12Err5REQUIRES_VIOLATION (47 of 146 remaining) [2021-08-30 17:48:10,691 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location alloc_fix_12Err6REQUIRES_VIOLATION (46 of 146 remaining) [2021-08-30 17:48:10,691 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location alloc_fix_12Err7REQUIRES_VIOLATION (45 of 146 remaining) [2021-08-30 17:48:10,691 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location alloc_fix_12Err8REQUIRES_VIOLATION (44 of 146 remaining) [2021-08-30 17:48:10,691 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location alloc_fix_12Err9REQUIRES_VIOLATION (43 of 146 remaining) [2021-08-30 17:48:10,691 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location alloc_fix_12Err10REQUIRES_VIOLATION (42 of 146 remaining) [2021-08-30 17:48:10,691 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location alloc_fix_12Err11REQUIRES_VIOLATION (41 of 146 remaining) [2021-08-30 17:48:10,691 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location alloc_fix_12Err12REQUIRES_VIOLATION (40 of 146 remaining) [2021-08-30 17:48:10,691 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location alloc_fix_12Err13REQUIRES_VIOLATION (39 of 146 remaining) [2021-08-30 17:48:10,691 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location alloc_fix_12Err14ASSERT_VIOLATIONMEMORY_FREE (38 of 146 remaining) [2021-08-30 17:48:10,692 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location alloc_fix_12Err15ASSERT_VIOLATIONMEMORY_FREE (37 of 146 remaining) [2021-08-30 17:48:10,692 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location alloc_fix_12Err16ASSERT_VIOLATIONMEMORY_FREE (36 of 146 remaining) [2021-08-30 17:48:10,692 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION (35 of 146 remaining) [2021-08-30 17:48:10,692 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION (34 of 146 remaining) [2021-08-30 17:48:10,692 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_12Err0REQUIRES_VIOLATION (33 of 146 remaining) [2021-08-30 17:48:10,692 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_12Err1REQUIRES_VIOLATION (32 of 146 remaining) [2021-08-30 17:48:10,692 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_12Err2REQUIRES_VIOLATION (31 of 146 remaining) [2021-08-30 17:48:10,692 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_12Err3REQUIRES_VIOLATION (30 of 146 remaining) [2021-08-30 17:48:10,693 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_12Err4REQUIRES_VIOLATION (29 of 146 remaining) [2021-08-30 17:48:10,693 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_12Err5REQUIRES_VIOLATION (28 of 146 remaining) [2021-08-30 17:48:10,693 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_12Err6ASSERT_VIOLATIONMEMORY_FREE (27 of 146 remaining) [2021-08-30 17:48:10,693 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_12Err7ASSERT_VIOLATIONMEMORY_FREE (26 of 146 remaining) [2021-08-30 17:48:10,693 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_12Err8ASSERT_VIOLATIONMEMORY_FREE (25 of 146 remaining) [2021-08-30 17:48:10,693 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr0REQUIRES_VIOLATION (24 of 146 remaining) [2021-08-30 17:48:10,693 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr1REQUIRES_VIOLATION (23 of 146 remaining) [2021-08-30 17:48:10,693 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr2REQUIRES_VIOLATION (22 of 146 remaining) [2021-08-30 17:48:10,693 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr3REQUIRES_VIOLATION (21 of 146 remaining) [2021-08-30 17:48:10,694 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr4REQUIRES_VIOLATION (20 of 146 remaining) [2021-08-30 17:48:10,694 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr5REQUIRES_VIOLATION (19 of 146 remaining) [2021-08-30 17:48:10,694 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr6REQUIRES_VIOLATION (18 of 146 remaining) [2021-08-30 17:48:10,694 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr7REQUIRES_VIOLATION (17 of 146 remaining) [2021-08-30 17:48:10,694 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr8REQUIRES_VIOLATION (16 of 146 remaining) [2021-08-30 17:48:10,694 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr9REQUIRES_VIOLATION (15 of 146 remaining) [2021-08-30 17:48:10,694 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr10ASSERT_VIOLATIONMEMORY_FREE (14 of 146 remaining) [2021-08-30 17:48:10,694 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr11ASSERT_VIOLATIONMEMORY_FREE (13 of 146 remaining) [2021-08-30 17:48:10,695 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr12ASSERT_VIOLATIONMEMORY_FREE (12 of 146 remaining) [2021-08-30 17:48:10,695 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr13ASSERT_VIOLATIONMEMORY_FREE (11 of 146 remaining) [2021-08-30 17:48:10,695 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr14ASSERT_VIOLATIONMEMORY_FREE (10 of 146 remaining) [2021-08-30 17:48:10,695 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr15ASSERT_VIOLATIONMEMORY_FREE (9 of 146 remaining) [2021-08-30 17:48:10,695 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr16ASSERT_VIOLATIONMEMORY_FREE (8 of 146 remaining) [2021-08-30 17:48:10,695 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr17ASSERT_VIOLATIONMEMORY_FREE (7 of 146 remaining) [2021-08-30 17:48:10,695 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr18ASSERT_VIOLATIONMEMORY_FREE (6 of 146 remaining) [2021-08-30 17:48:10,695 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr19ASSERT_VIOLATIONMEMORY_FREE (5 of 146 remaining) [2021-08-30 17:48:10,696 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr20ASSERT_VIOLATIONMEMORY_FREE (4 of 146 remaining) [2021-08-30 17:48:10,696 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr21ASSERT_VIOLATIONMEMORY_FREE (3 of 146 remaining) [2021-08-30 17:48:10,696 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr22ASSERT_VIOLATIONMEMORY_FREE (2 of 146 remaining) [2021-08-30 17:48:10,696 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr23ASSERT_VIOLATIONMEMORY_FREE (1 of 146 remaining) [2021-08-30 17:48:10,696 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr24ASSERT_VIOLATIONMEMORY_FREE (0 of 146 remaining) [2021-08-30 17:48:10,702 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (24)] Ended with exit code 0 [2021-08-30 17:48:10,905 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2021-08-30 17:48:11,116 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2021-08-30 17:48:11,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-30 17:48:11,308 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-30 17:48:11,314 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-08-30 17:48:11,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 05:48:11 BoogieIcfgContainer [2021-08-30 17:48:11,320 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-30 17:48:11,321 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-30 17:48:11,321 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-30 17:48:11,321 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-30 17:48:11,321 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 05:45:16" (3/4) ... [2021-08-30 17:48:11,323 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-30 17:48:11,323 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-30 17:48:11,324 INFO L158 Benchmark]: Toolchain (without parser) took 176424.70ms. Allocated memory was 62.9MB in the beginning and 146.8MB in the end (delta: 83.9MB). Free memory was 41.9MB in the beginning and 73.0MB in the end (delta: -31.1MB). Peak memory consumption was 51.3MB. Max. memory is 16.1GB. [2021-08-30 17:48:11,324 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 62.9MB. Free memory is still 45.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-08-30 17:48:11,324 INFO L158 Benchmark]: CACSL2BoogieTranslator took 595.80ms. Allocated memory was 62.9MB in the beginning and 77.6MB in the end (delta: 14.7MB). Free memory was 41.7MB in the beginning and 54.6MB in the end (delta: -12.9MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. [2021-08-30 17:48:11,324 INFO L158 Benchmark]: Boogie Preprocessor took 76.04ms. Allocated memory is still 77.6MB. Free memory was 54.6MB in the beginning and 48.5MB in the end (delta: 6.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-08-30 17:48:11,324 INFO L158 Benchmark]: RCFGBuilder took 656.00ms. Allocated memory is still 77.6MB. Free memory was 48.5MB in the beginning and 36.4MB in the end (delta: 12.1MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. [2021-08-30 17:48:11,324 INFO L158 Benchmark]: TraceAbstraction took 175090.65ms. Allocated memory was 77.6MB in the beginning and 146.8MB in the end (delta: 69.2MB). Free memory was 35.7MB in the beginning and 73.0MB in the end (delta: -37.3MB). Peak memory consumption was 30.8MB. Max. memory is 16.1GB. [2021-08-30 17:48:11,325 INFO L158 Benchmark]: Witness Printer took 2.53ms. Allocated memory is still 146.8MB. Free memory is still 73.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-08-30 17:48:11,326 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 62.9MB. Free memory is still 45.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 595.80ms. Allocated memory was 62.9MB in the beginning and 77.6MB in the end (delta: 14.7MB). Free memory was 41.7MB in the beginning and 54.6MB in the end (delta: -12.9MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 76.04ms. Allocated memory is still 77.6MB. Free memory was 54.6MB in the beginning and 48.5MB in the end (delta: 6.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 656.00ms. Allocated memory is still 77.6MB. Free memory was 48.5MB in the beginning and 36.4MB in the end (delta: 12.1MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. * TraceAbstraction took 175090.65ms. Allocated memory was 77.6MB in the beginning and 146.8MB in the end (delta: 69.2MB). Free memory was 35.7MB in the beginning and 73.0MB in the end (delta: -37.3MB). Peak memory consumption was 30.8MB. Max. memory is 16.1GB. * Witness Printer took 2.53ms. Allocated memory is still 146.8MB. Free memory is still 73.0MB. There was no memory consumed. Max. memory is 16.1GB. * 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.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 911]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: unable to decide satisfiability of path constraint, overapproximation of memtrack at line 911. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L912] CALL entry_point() [L877] CALL, EXPR ldv_malloc(sizeof(struct ldv_i2c_client)) [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L877] RET, EXPR ldv_malloc(sizeof(struct ldv_i2c_client)) [L877] struct ldv_i2c_client *client = (struct ldv_i2c_client *)ldv_malloc(sizeof(struct ldv_i2c_client)); [L878] COND FALSE !(!client) [L880] CALL, EXPR ldv_malloc(sizeof(struct ldv_m88ts2022_config)) [L526] COND FALSE !(__VERIFIER_nondet_int()) [L529] return 0; [L880] RET, EXPR ldv_malloc(sizeof(struct ldv_m88ts2022_config)) [L879-L880] struct ldv_m88ts2022_config *cfg = (struct ldv_m88ts2022_config *) ldv_malloc(sizeof(struct ldv_m88ts2022_config)); [L881] COND TRUE !cfg [L906] free(client) [L906] free(client) [L906] free(client) [L908] CALL ldv_destroy_msgs() [L605] struct ldv_msg *msg; [L606] struct ldv_msg *n; [L607] EXPR (&ldv_global_msg_list)->next [L607] const typeof( ((typeof(*msg) *)0)->list ) *__mptr = ((&ldv_global_msg_list)->next); [L607] msg = ({ const typeof( ((typeof(*msg) *)0)->list ) *__mptr = ((&ldv_global_msg_list)->next); (typeof(*msg) *)( (char *)__mptr - ((size_t) &((typeof(*msg) *)0)->list) );}) [L607] EXPR (msg)->list.next [L607] const typeof( ((typeof(*(msg)) *)0)->list ) *__mptr = ((msg)->list.next); [L607] n = ({ const typeof( ((typeof(*(msg)) *)0)->list ) *__mptr = ((msg)->list.next); (typeof(*(msg)) *)( (char *)__mptr - ((size_t) &((typeof(*(msg)) *)0)->list) );}) [L607] COND FALSE !(&msg->list != (&ldv_global_msg_list)) [L908] RET ldv_destroy_msgs() [L912] RET entry_point() - UnprovableResult [Line: 800]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 800]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 800]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 800]: 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: 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: 814]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 814]: 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: 816]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 816]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 821]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 821]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 821]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 821]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 826]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 826]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 826]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 826]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 832]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 832]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 832]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 832]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 834]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 834]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 834]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 834]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 844]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 844]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 845]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 845]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 848]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 848]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 848]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 848]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 849]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 849]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 852]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 852]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 860]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 860]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 864]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 864]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 864]: Unable to prove that free always succeeds Unable to prove that free 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: 868]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 868]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 869]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 869]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 870]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 870]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 873]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 873]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 873]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 882]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 882]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 886]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 886]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 889]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 889]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 893]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 893]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 894]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 894]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 898]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 898]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 898]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 900]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 900]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 900]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 902]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 902]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 902]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 904]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 904]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 904]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 906]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 906]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 906]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 55 procedures, 541 locations, 146 error locations. Started 1 CEGAR loops. OverallTime: 175026.57ms, OverallIterations: 22, TraceHistogramMax: 3, EmptinessCheckTime: 27.34ms, AutomataDifference: 94228.12ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 0.00ms, InitialAbstractionConstructionTime: 25.28ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4539 SdHoareTripleChecker+Valid, 50164.30ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4396 mSDsluCounter, 5482 SdHoareTripleChecker+Invalid, 44205.84ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 10947 IncrementalHoareTripleChecker+Unchecked, 28172 mSDsCounter, 800 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 41824 IncrementalHoareTripleChecker+Invalid, 53571 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 800 mSolverCounterUnsat, 1557 mSDtfsCounter, 41824 mSolverCounterSat, 181.56ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1029 GetRequests, 804 SyntacticMatches, 42 SemanticMatches, 183 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 87887.08ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=613occurred in iteration=21, InterpolantAutomatonStates: 163, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 247.67ms AutomataMinimizationTime, 21 MinimizatonAttempts, 1508 StatesRemovedByMinimization, 19 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 136.98ms SsaConstructionTime, 340.95ms SatisfiabilityAnalysisTime, 55803.40ms InterpolantComputationTime, 501 NumberOfCodeBlocks, 501 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 960 ConstructedInterpolants, 99 QuantifiedInterpolants, 9573 SizeOfPredicates, 101 NumberOfNonLiveVariables, 2171 ConjunctsInSsa, 260 ConjunctsInUnsatCore, 42 InterpolantComputations, 22 PerfectInterpolantSequences, 162/216 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-08-30 17:48:11,397 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...