./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test16.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 906a4fb5 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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_test16.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 fa0c2a1ec4e9d87c009cc3e8aa4349638d4af33a ............................................................................................................................. 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 -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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_test16.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 fa0c2a1ec4e9d87c009cc3e8aa4349638d4af33a ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.1.25-906a4fb [2020-10-19 18:08:02,070 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 18:08:02,072 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 18:08:02,096 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 18:08:02,097 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 18:08:02,098 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 18:08:02,099 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 18:08:02,101 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 18:08:02,103 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 18:08:02,104 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 18:08:02,105 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 18:08:02,106 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 18:08:02,106 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 18:08:02,107 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 18:08:02,108 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 18:08:02,109 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 18:08:02,110 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 18:08:02,111 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 18:08:02,113 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 18:08:02,115 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 18:08:02,116 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 18:08:02,118 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 18:08:02,119 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 18:08:02,120 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 18:08:02,122 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 18:08:02,123 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 18:08:02,123 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 18:08:02,124 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 18:08:02,124 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 18:08:02,125 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 18:08:02,125 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 18:08:02,126 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 18:08:02,127 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 18:08:02,128 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 18:08:02,129 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 18:08:02,129 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 18:08:02,130 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 18:08:02,130 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 18:08:02,130 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 18:08:02,131 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 18:08:02,132 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 18:08:02,133 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-10-19 18:08:02,170 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 18:08:02,171 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 18:08:02,172 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 18:08:02,175 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 18:08:02,175 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 18:08:02,176 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 18:08:02,176 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 18:08:02,176 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 18:08:02,176 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 18:08:02,177 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 18:08:02,177 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 18:08:02,180 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-19 18:08:02,180 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-19 18:08:02,180 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-19 18:08:02,180 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 18:08:02,180 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-19 18:08:02,181 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 18:08:02,181 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 18:08:02,181 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 18:08:02,181 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 18:08:02,181 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 18:08:02,182 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 18:08:02,183 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 18:08:02,183 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 18:08:02,183 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 18:08:02,183 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 18:08:02,183 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-19 18:08:02,184 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 18:08:02,184 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> fa0c2a1ec4e9d87c009cc3e8aa4349638d4af33a [2020-10-19 18:08:02,505 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 18:08:02,518 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 18:08:02,521 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 18:08:02,523 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 18:08:02,523 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 18:08:02,524 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test16.i [2020-10-19 18:08:02,597 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d138e6cd1/27eed9c9b8cc4e9baa4da30202d57950/FLAGe16c9430d [2020-10-19 18:08:03,101 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 18:08:03,102 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test16.i [2020-10-19 18:08:03,121 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d138e6cd1/27eed9c9b8cc4e9baa4da30202d57950/FLAGe16c9430d [2020-10-19 18:08:03,430 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d138e6cd1/27eed9c9b8cc4e9baa4da30202d57950 [2020-10-19 18:08:03,434 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 18:08:03,441 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-19 18:08:03,442 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 18:08:03,443 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 18:08:03,446 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 18:08:03,447 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:08:03" (1/1) ... [2020-10-19 18:08:03,451 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1567c270 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:08:03, skipping insertion in model container [2020-10-19 18:08:03,451 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:08:03" (1/1) ... [2020-10-19 18:08:03,459 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 18:08:03,531 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 18:08:04,118 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:08:04,139 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) [2020-10-19 18:08:04,140 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4298ba12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:08:04, skipping insertion in model container [2020-10-19 18:08:04,140 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 18:08:04,141 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2020-10-19 18:08:04,144 INFO L168 Benchmark]: Toolchain (without parser) took 707.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 958.6 MB in the beginning and 1.1 GB in the end (delta: -168.8 MB). Peak memory consumption was 31.8 MB. Max. memory is 11.5 GB. [2020-10-19 18:08:04,145 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:08:04,146 INFO L168 Benchmark]: CACSL2BoogieTranslator took 698.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 953.2 MB in the beginning and 1.1 GB in the end (delta: -174.2 MB). Peak memory consumption was 26.4 MB. Max. memory is 11.5 GB. [2020-10-19 18:08:04,148 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 698.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 953.2 MB in the beginning and 1.1 GB in the end (delta: -174.2 MB). Peak memory consumption was 26.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-906a4fb [2020-10-19 18:08:05,774 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 18:08:05,776 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 18:08:05,800 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 18:08:05,801 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 18:08:05,802 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 18:08:05,803 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 18:08:05,805 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 18:08:05,807 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 18:08:05,808 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 18:08:05,809 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 18:08:05,810 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 18:08:05,810 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 18:08:05,811 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 18:08:05,813 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 18:08:05,814 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 18:08:05,815 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 18:08:05,816 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 18:08:05,817 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 18:08:05,819 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 18:08:05,821 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 18:08:05,822 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 18:08:05,823 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 18:08:05,824 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 18:08:05,827 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 18:08:05,827 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 18:08:05,828 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 18:08:05,828 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 18:08:05,829 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 18:08:05,830 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 18:08:05,830 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 18:08:05,831 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 18:08:05,832 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 18:08:05,833 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 18:08:05,834 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 18:08:05,834 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 18:08:05,835 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 18:08:05,835 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 18:08:05,835 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 18:08:05,836 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 18:08:05,837 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 18:08:05,838 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2020-10-19 18:08:05,861 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 18:08:05,861 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 18:08:05,862 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 18:08:05,863 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 18:08:05,863 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 18:08:05,863 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 18:08:05,864 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 18:08:05,864 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 18:08:05,864 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 18:08:05,864 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 18:08:05,865 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 18:08:05,865 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-19 18:08:05,865 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-19 18:08:05,866 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-19 18:08:05,866 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 18:08:05,869 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-19 18:08:05,869 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-19 18:08:05,870 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-19 18:08:05,870 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 18:08:05,870 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 18:08:05,871 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 18:08:05,871 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 18:08:05,871 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 18:08:05,871 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 18:08:05,872 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 18:08:05,872 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 18:08:05,872 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 18:08:05,873 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-19 18:08:05,874 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-19 18:08:05,874 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 18:08:05,874 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-19 18:08:05,875 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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 -> fa0c2a1ec4e9d87c009cc3e8aa4349638d4af33a [2020-10-19 18:08:06,214 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 18:08:06,226 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 18:08:06,229 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 18:08:06,231 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 18:08:06,231 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 18:08:06,232 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test16.i [2020-10-19 18:08:06,288 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3432c59b0/972d7c9068b247ffb724b53ab4dcfbde/FLAG92df93cec [2020-10-19 18:08:06,811 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 18:08:06,811 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test16.i [2020-10-19 18:08:06,837 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3432c59b0/972d7c9068b247ffb724b53ab4dcfbde/FLAG92df93cec [2020-10-19 18:08:07,050 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3432c59b0/972d7c9068b247ffb724b53ab4dcfbde [2020-10-19 18:08:07,054 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 18:08:07,061 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-19 18:08:07,062 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 18:08:07,062 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 18:08:07,067 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 18:08:07,068 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:08:07" (1/1) ... [2020-10-19 18:08:07,071 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35566b63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:08:07, skipping insertion in model container [2020-10-19 18:08:07,071 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:08:07" (1/1) ... [2020-10-19 18:08:07,079 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 18:08:07,146 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 18:08:07,661 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:08:07,681 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-10-19 18:08:07,691 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 18:08:07,737 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:08:07,745 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 18:08:07,837 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:08:07,926 INFO L208 MainTranslator]: Completed translation [2020-10-19 18:08:07,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:08:07 WrapperNode [2020-10-19 18:08:07,927 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 18:08:07,928 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 18:08:07,929 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 18:08:07,929 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 18:08:07,943 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:08:07" (1/1) ... [2020-10-19 18:08:07,943 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:08:07" (1/1) ... [2020-10-19 18:08:07,967 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:08:07" (1/1) ... [2020-10-19 18:08:07,967 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:08:07" (1/1) ... [2020-10-19 18:08:08,000 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:08:07" (1/1) ... [2020-10-19 18:08:08,007 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:08:07" (1/1) ... [2020-10-19 18:08:08,014 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:08:07" (1/1) ... [2020-10-19 18:08:08,025 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 18:08:08,025 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 18:08:08,026 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 18:08:08,026 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 18:08:08,027 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:08:07" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 18:08:08,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-19 18:08:08,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 18:08:08,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-10-19 18:08:08,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2020-10-19 18:08:08,089 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-19 18:08:08,089 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-19 18:08:08,089 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-10-19 18:08:08,089 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-10-19 18:08:08,089 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-10-19 18:08:08,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2020-10-19 18:08:08,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2020-10-19 18:08:08,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-19 18:08:08,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-19 18:08:08,090 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2020-10-19 18:08:08,090 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2020-10-19 18:08:08,090 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2020-10-19 18:08:08,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2020-10-19 18:08:08,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2020-10-19 18:08:08,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2020-10-19 18:08:08,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2020-10-19 18:08:08,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2020-10-19 18:08:08,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2020-10-19 18:08:08,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2020-10-19 18:08:08,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2020-10-19 18:08:08,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2020-10-19 18:08:08,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2020-10-19 18:08:08,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2020-10-19 18:08:08,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2020-10-19 18:08:08,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2020-10-19 18:08:08,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2020-10-19 18:08:08,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2020-10-19 18:08:08,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2020-10-19 18:08:08,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2020-10-19 18:08:08,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2020-10-19 18:08:08,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2020-10-19 18:08:08,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2020-10-19 18:08:08,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2020-10-19 18:08:08,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2020-10-19 18:08:08,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2020-10-19 18:08:08,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2020-10-19 18:08:08,094 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2020-10-19 18:08:08,094 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2020-10-19 18:08:08,094 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_16 [2020-10-19 18:08:08,094 INFO L138 BoogieDeclarations]: Found implementation of procedure free_16 [2020-10-19 18:08:08,095 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2020-10-19 18:08:08,095 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-19 18:08:08,095 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-10-19 18:08:08,095 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-19 18:08:08,095 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-10-19 18:08:08,095 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-19 18:08:08,095 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-19 18:08:08,096 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-19 18:08:08,096 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-19 18:08:08,096 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-19 18:08:08,096 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-19 18:08:08,096 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-19 18:08:08,096 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-19 18:08:08,096 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-19 18:08:08,097 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-19 18:08:08,097 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-19 18:08:08,097 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-19 18:08:08,097 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-19 18:08:08,097 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-19 18:08:08,097 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-19 18:08:08,097 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-19 18:08:08,098 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-19 18:08:08,098 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-19 18:08:08,098 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-10-19 18:08:08,098 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-10-19 18:08:08,098 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-10-19 18:08:08,098 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-19 18:08:08,098 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-19 18:08:08,099 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-19 18:08:08,099 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-19 18:08:08,099 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-19 18:08:08,099 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-19 18:08:08,099 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-19 18:08:08,099 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-19 18:08:08,099 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-19 18:08:08,100 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-19 18:08:08,100 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-19 18:08:08,100 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-19 18:08:08,100 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-19 18:08:08,100 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-19 18:08:08,100 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-19 18:08:08,100 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-19 18:08:08,101 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-19 18:08:08,101 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-19 18:08:08,101 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-19 18:08:08,101 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-19 18:08:08,101 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-19 18:08:08,101 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-19 18:08:08,101 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-19 18:08:08,102 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-19 18:08:08,102 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-19 18:08:08,102 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-19 18:08:08,102 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-19 18:08:08,102 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-19 18:08:08,102 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-19 18:08:08,102 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-19 18:08:08,103 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-19 18:08:08,103 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-19 18:08:08,103 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-19 18:08:08,103 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-19 18:08:08,103 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-19 18:08:08,103 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-19 18:08:08,103 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-19 18:08:08,104 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-19 18:08:08,104 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-19 18:08:08,104 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-19 18:08:08,104 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-19 18:08:08,104 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-19 18:08:08,104 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-19 18:08:08,104 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-19 18:08:08,105 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-19 18:08:08,105 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-19 18:08:08,105 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-19 18:08:08,105 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-19 18:08:08,105 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-19 18:08:08,105 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-19 18:08:08,105 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-19 18:08:08,106 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-19 18:08:08,106 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-19 18:08:08,106 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-19 18:08:08,106 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-19 18:08:08,106 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-19 18:08:08,106 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-19 18:08:08,106 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-19 18:08:08,107 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-19 18:08:08,107 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-19 18:08:08,107 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-19 18:08:08,107 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-19 18:08:08,107 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-19 18:08:08,107 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-19 18:08:08,107 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-19 18:08:08,108 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-19 18:08:08,108 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-19 18:08:08,108 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-19 18:08:08,108 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-19 18:08:08,108 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-19 18:08:08,108 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-19 18:08:08,108 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-19 18:08:08,109 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-19 18:08:08,109 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-19 18:08:08,109 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-19 18:08:08,109 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-19 18:08:08,109 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-19 18:08:08,109 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-19 18:08:08,110 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-19 18:08:08,110 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-19 18:08:08,110 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-19 18:08:08,110 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-19 18:08:08,110 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-19 18:08:08,110 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-19 18:08:08,110 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-19 18:08:08,110 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-19 18:08:08,111 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-19 18:08:08,111 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-19 18:08:08,111 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2020-10-19 18:08:08,111 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2020-10-19 18:08:08,111 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-10-19 18:08:08,111 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-10-19 18:08:08,111 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-19 18:08:08,112 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-19 18:08:08,112 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-19 18:08:08,112 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-19 18:08:08,112 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2020-10-19 18:08:08,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-19 18:08:08,112 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2020-10-19 18:08:08,112 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2020-10-19 18:08:08,113 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2020-10-19 18:08:08,113 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-19 18:08:08,113 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2020-10-19 18:08:08,113 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2020-10-19 18:08:08,113 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2020-10-19 18:08:08,113 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2020-10-19 18:08:08,113 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-10-19 18:08:08,114 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2020-10-19 18:08:08,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-19 18:08:08,114 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2020-10-19 18:08:08,114 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2020-10-19 18:08:08,114 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2020-10-19 18:08:08,114 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2020-10-19 18:08:08,114 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2020-10-19 18:08:08,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-19 18:08:08,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-19 18:08:08,115 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2020-10-19 18:08:08,115 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2020-10-19 18:08:08,115 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-10-19 18:08:08,115 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2020-10-19 18:08:08,115 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2020-10-19 18:08:08,115 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2020-10-19 18:08:08,115 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2020-10-19 18:08:08,116 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2020-10-19 18:08:08,116 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2020-10-19 18:08:08,116 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2020-10-19 18:08:08,116 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2020-10-19 18:08:08,116 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2020-10-19 18:08:08,116 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2020-10-19 18:08:08,117 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2020-10-19 18:08:08,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-10-19 18:08:08,117 INFO L130 BoogieDeclarations]: Found specification of procedure f [2020-10-19 18:08:08,117 INFO L130 BoogieDeclarations]: Found specification of procedure g [2020-10-19 18:08:08,117 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_16 [2020-10-19 18:08:08,117 INFO L130 BoogieDeclarations]: Found specification of procedure free_16 [2020-10-19 18:08:08,117 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2020-10-19 18:08:08,117 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-19 18:08:08,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-19 18:08:08,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 18:08:08,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-19 18:08:08,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 18:08:08,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2020-10-19 18:08:08,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-10-19 18:08:08,118 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-10-19 18:08:08,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2020-10-19 18:08:08,119 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2020-10-19 18:08:08,693 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-19 18:08:09,031 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-19 18:08:09,369 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 18:08:09,369 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-19 18:08:09,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:08:09 BoogieIcfgContainer [2020-10-19 18:08:09,373 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 18:08:09,374 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 18:08:09,374 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 18:08:09,378 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 18:08:09,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 06:08:07" (1/3) ... [2020-10-19 18:08:09,379 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4668ee9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 06:08:09, skipping insertion in model container [2020-10-19 18:08:09,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:08:07" (2/3) ... [2020-10-19 18:08:09,380 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4668ee9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 06:08:09, skipping insertion in model container [2020-10-19 18:08:09,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:08:09" (3/3) ... [2020-10-19 18:08:09,382 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test16.i [2020-10-19 18:08:09,403 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 18:08:09,416 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 74 error locations. [2020-10-19 18:08:09,432 INFO L253 AbstractCegarLoop]: Starting to check reachability of 74 error locations. [2020-10-19 18:08:09,450 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 18:08:09,450 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-19 18:08:09,450 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 18:08:09,450 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 18:08:09,451 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 18:08:09,451 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 18:08:09,451 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 18:08:09,451 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 18:08:09,470 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states. [2020-10-19 18:08:09,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-19 18:08:09,480 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:08:09,481 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:08:09,482 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_16Err0ASSERT_VIOLATIONMEMORY_FREE, free_16Err1ASSERT_VIOLATIONMEMORY_FREE, free_16Err2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-10-19 18:08:09,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:08:09,488 INFO L82 PathProgramCache]: Analyzing trace with hash 997159282, now seen corresponding path program 1 times [2020-10-19 18:08:09,501 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:08:09,501 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1052478586] [2020-10-19 18:08:09,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-10-19 18:08:09,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:08:09,698 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-19 18:08:09,704 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:08:09,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:08:09,794 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:08:09,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:08:09,873 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1052478586] [2020-10-19 18:08:09,874 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:08:09,874 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 8 [2020-10-19 18:08:09,875 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712091440] [2020-10-19 18:08:09,880 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-19 18:08:09,881 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:08:09,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-19 18:08:09,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-19 18:08:09,901 INFO L87 Difference]: Start difference. First operand 107 states. Second operand 8 states. [2020-10-19 18:08:10,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:08:10,017 INFO L93 Difference]: Finished difference Result 49 states and 51 transitions. [2020-10-19 18:08:10,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-19 18:08:10,019 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 17 [2020-10-19 18:08:10,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:08:10,032 INFO L225 Difference]: With dead ends: 49 [2020-10-19 18:08:10,033 INFO L226 Difference]: Without dead ends: 46 [2020-10-19 18:08:10,035 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-10-19 18:08:10,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-10-19 18:08:10,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 42. [2020-10-19 18:08:10,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-10-19 18:08:10,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 44 transitions. [2020-10-19 18:08:10,083 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 44 transitions. Word has length 17 [2020-10-19 18:08:10,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:08:10,083 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 44 transitions. [2020-10-19 18:08:10,083 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-19 18:08:10,084 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 44 transitions. [2020-10-19 18:08:10,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-19 18:08:10,085 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:08:10,085 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:08:10,298 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-19 18:08:10,299 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_16Err0ASSERT_VIOLATIONMEMORY_FREE, free_16Err1ASSERT_VIOLATIONMEMORY_FREE, free_16Err2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-10-19 18:08:10,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:08:10,300 INFO L82 PathProgramCache]: Analyzing trace with hash 965683329, now seen corresponding path program 1 times [2020-10-19 18:08:10,300 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:08:10,300 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1582826616] [2020-10-19 18:08:10,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-10-19 18:08:10,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:08:10,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-19 18:08:10,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:08:10,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:08:10,534 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:08:10,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:08:10,619 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1582826616] [2020-10-19 18:08:10,620 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:08:10,620 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-19 18:08:10,620 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260878617] [2020-10-19 18:08:10,622 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 18:08:10,623 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:08:10,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 18:08:10,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 18:08:10,624 INFO L87 Difference]: Start difference. First operand 42 states and 44 transitions. Second operand 3 states. [2020-10-19 18:08:10,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:08:10,677 INFO L93 Difference]: Finished difference Result 54 states and 57 transitions. [2020-10-19 18:08:10,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 18:08:10,678 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2020-10-19 18:08:10,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:08:10,680 INFO L225 Difference]: With dead ends: 54 [2020-10-19 18:08:10,680 INFO L226 Difference]: Without dead ends: 43 [2020-10-19 18:08:10,681 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 18:08:10,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-10-19 18:08:10,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2020-10-19 18:08:10,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-10-19 18:08:10,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 45 transitions. [2020-10-19 18:08:10,695 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 45 transitions. Word has length 21 [2020-10-19 18:08:10,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:08:10,695 INFO L481 AbstractCegarLoop]: Abstraction has 43 states and 45 transitions. [2020-10-19 18:08:10,695 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 18:08:10,696 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 45 transitions. [2020-10-19 18:08:10,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-19 18:08:10,697 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:08:10,697 INFO L422 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] [2020-10-19 18:08:10,909 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-19 18:08:10,910 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_16Err0ASSERT_VIOLATIONMEMORY_FREE, free_16Err1ASSERT_VIOLATIONMEMORY_FREE, free_16Err2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-10-19 18:08:10,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:08:10,910 INFO L82 PathProgramCache]: Analyzing trace with hash -1103285257, now seen corresponding path program 1 times [2020-10-19 18:08:10,911 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:08:10,911 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1465561038] [2020-10-19 18:08:10,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-10-19 18:08:11,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:08:11,114 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-19 18:08:11,117 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:08:11,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:08:11,191 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:08:11,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:08:11,301 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1465561038] [2020-10-19 18:08:11,302 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:08:11,302 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2020-10-19 18:08:11,302 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316580373] [2020-10-19 18:08:11,303 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-19 18:08:11,303 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:08:11,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-19 18:08:11,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-10-19 18:08:11,304 INFO L87 Difference]: Start difference. First operand 43 states and 45 transitions. Second operand 9 states. [2020-10-19 18:08:11,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:08:11,352 INFO L93 Difference]: Finished difference Result 42 states and 44 transitions. [2020-10-19 18:08:11,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-19 18:08:11,352 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2020-10-19 18:08:11,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:08:11,354 INFO L225 Difference]: With dead ends: 42 [2020-10-19 18:08:11,354 INFO L226 Difference]: Without dead ends: 42 [2020-10-19 18:08:11,354 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-19 18:08:11,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-10-19 18:08:11,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-10-19 18:08:11,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-10-19 18:08:11,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 44 transitions. [2020-10-19 18:08:11,362 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 44 transitions. Word has length 23 [2020-10-19 18:08:11,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:08:11,362 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 44 transitions. [2020-10-19 18:08:11,362 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-19 18:08:11,362 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 44 transitions. [2020-10-19 18:08:11,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-19 18:08:11,363 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:08:11,363 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:08:11,577 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-19 18:08:11,578 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_16Err0ASSERT_VIOLATIONMEMORY_FREE, free_16Err1ASSERT_VIOLATIONMEMORY_FREE, free_16Err2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-10-19 18:08:11,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:08:11,579 INFO L82 PathProgramCache]: Analyzing trace with hash 157895800, now seen corresponding path program 1 times [2020-10-19 18:08:11,580 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:08:11,581 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1196769643] [2020-10-19 18:08:11,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-10-19 18:08:11,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:08:11,723 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-19 18:08:11,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:08:11,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:08:11,897 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:08:12,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:08:12,280 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1196769643] [2020-10-19 18:08:12,281 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:08:12,281 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 8] imperfect sequences [] total 16 [2020-10-19 18:08:12,281 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506045440] [2020-10-19 18:08:12,282 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-19 18:08:12,282 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:08:12,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-19 18:08:12,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2020-10-19 18:08:12,283 INFO L87 Difference]: Start difference. First operand 42 states and 44 transitions. Second operand 17 states. [2020-10-19 18:08:12,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:08:12,716 INFO L93 Difference]: Finished difference Result 53 states and 54 transitions. [2020-10-19 18:08:12,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-19 18:08:12,718 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 24 [2020-10-19 18:08:12,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:08:12,720 INFO L225 Difference]: With dead ends: 53 [2020-10-19 18:08:12,720 INFO L226 Difference]: Without dead ends: 51 [2020-10-19 18:08:12,720 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2020-10-19 18:08:12,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-10-19 18:08:12,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 46. [2020-10-19 18:08:12,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-10-19 18:08:12,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 48 transitions. [2020-10-19 18:08:12,727 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 48 transitions. Word has length 24 [2020-10-19 18:08:12,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:08:12,727 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 48 transitions. [2020-10-19 18:08:12,728 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-19 18:08:12,728 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 48 transitions. [2020-10-19 18:08:12,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-19 18:08:12,729 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:08:12,729 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:08:12,929 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-10-19 18:08:12,931 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_16Err0ASSERT_VIOLATIONMEMORY_FREE, free_16Err1ASSERT_VIOLATIONMEMORY_FREE, free_16Err2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-10-19 18:08:12,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:08:12,931 INFO L82 PathProgramCache]: Analyzing trace with hash 599802905, now seen corresponding path program 1 times [2020-10-19 18:08:12,932 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:08:12,932 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1352754458] [2020-10-19 18:08:12,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-10-19 18:08:13,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:08:13,063 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-19 18:08:13,067 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:08:13,108 INFO L384 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 [2020-10-19 18:08:13,109 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:08:13,117 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:08:13,117 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:08:13,117 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-10-19 18:08:13,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:08:13,188 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:08:13,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:08:13,332 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1352754458] [2020-10-19 18:08:13,332 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:08:13,332 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2020-10-19 18:08:13,332 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942787098] [2020-10-19 18:08:13,333 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-19 18:08:13,333 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:08:13,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-19 18:08:13,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-10-19 18:08:13,334 INFO L87 Difference]: Start difference. First operand 46 states and 48 transitions. Second operand 9 states. [2020-10-19 18:08:13,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:08:13,491 INFO L93 Difference]: Finished difference Result 50 states and 51 transitions. [2020-10-19 18:08:13,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-19 18:08:13,492 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-10-19 18:08:13,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:08:13,493 INFO L225 Difference]: With dead ends: 50 [2020-10-19 18:08:13,493 INFO L226 Difference]: Without dead ends: 50 [2020-10-19 18:08:13,494 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-19 18:08:13,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-10-19 18:08:13,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 46. [2020-10-19 18:08:13,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-10-19 18:08:13,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 47 transitions. [2020-10-19 18:08:13,500 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 47 transitions. Word has length 25 [2020-10-19 18:08:13,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:08:13,500 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 47 transitions. [2020-10-19 18:08:13,500 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-19 18:08:13,500 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 47 transitions. [2020-10-19 18:08:13,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-19 18:08:13,501 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:08:13,502 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:08:13,702 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-10-19 18:08:13,703 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_16Err0ASSERT_VIOLATIONMEMORY_FREE, free_16Err1ASSERT_VIOLATIONMEMORY_FREE, free_16Err2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-10-19 18:08:13,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:08:13,704 INFO L82 PathProgramCache]: Analyzing trace with hash 306399898, now seen corresponding path program 1 times [2020-10-19 18:08:13,705 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:08:13,705 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [961747227] [2020-10-19 18:08:13,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-10-19 18:08:13,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:08:13,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 9 conjunts are in the unsatisfiable core [2020-10-19 18:08:13,853 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:08:13,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:08:13,916 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:08:13,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:08:13,989 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [961747227] [2020-10-19 18:08:13,989 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:08:13,990 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2020-10-19 18:08:13,990 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132185085] [2020-10-19 18:08:13,990 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-19 18:08:13,990 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:08:13,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-19 18:08:13,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-10-19 18:08:13,991 INFO L87 Difference]: Start difference. First operand 46 states and 47 transitions. Second operand 9 states. [2020-10-19 18:08:14,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:08:14,077 INFO L93 Difference]: Finished difference Result 47 states and 48 transitions. [2020-10-19 18:08:14,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-19 18:08:14,080 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-10-19 18:08:14,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:08:14,081 INFO L225 Difference]: With dead ends: 47 [2020-10-19 18:08:14,082 INFO L226 Difference]: Without dead ends: 47 [2020-10-19 18:08:14,082 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-19 18:08:14,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-10-19 18:08:14,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 45. [2020-10-19 18:08:14,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-10-19 18:08:14,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 46 transitions. [2020-10-19 18:08:14,092 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 46 transitions. Word has length 25 [2020-10-19 18:08:14,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:08:14,092 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 46 transitions. [2020-10-19 18:08:14,092 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-19 18:08:14,093 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 46 transitions. [2020-10-19 18:08:14,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-19 18:08:14,095 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:08:14,095 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:08:14,295 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-10-19 18:08:14,296 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_16Err0ASSERT_VIOLATIONMEMORY_FREE, free_16Err1ASSERT_VIOLATIONMEMORY_FREE, free_16Err2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-10-19 18:08:14,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:08:14,297 INFO L82 PathProgramCache]: Analyzing trace with hash 1123950726, now seen corresponding path program 1 times [2020-10-19 18:08:14,297 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:08:14,298 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1775461744] [2020-10-19 18:08:14,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2020-10-19 18:08:14,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:08:14,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-19 18:08:14,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:08:14,470 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1775461744] [2020-10-19 18:08:14,471 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-19 18:08:14,471 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [976630894] [2020-10-19 18:08:14,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-19 18:08:14,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:08:14,748 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-19 18:08:14,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:08:14,752 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-19 18:08:14,752 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1281615555] [2020-10-19 18:08:14,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:08:14,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:08:14,942 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-19 18:08:14,943 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:08:14,946 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-19 18:08:14,946 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:08:14,946 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2020-10-19 18:08:14,946 ERROR L205 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2020-10-19 18:08:14,947 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-19 18:08:15,554 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk,8 mathsat -unsat_core_generation=3,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:08:15,561 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2020-10-19 18:08:15,570 WARN L238 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-10-19 18:08:15,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 06:08:15 BoogieIcfgContainer [2020-10-19 18:08:15,573 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 18:08:15,573 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 18:08:15,573 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 18:08:15,573 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 18:08:15,574 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:08:09" (3/4) ... [2020-10-19 18:08:15,576 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-19 18:08:15,577 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 18:08:15,578 INFO L168 Benchmark]: Toolchain (without parser) took 8522.71 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 284.7 MB). Free memory was 949.2 MB in the beginning and 1.3 GB in the end (delta: -304.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:08:15,578 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:08:15,579 INFO L168 Benchmark]: CACSL2BoogieTranslator took 865.75 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.1 MB). Free memory was 949.2 MB in the beginning and 1.1 GB in the end (delta: -109.3 MB). Peak memory consumption was 26.3 MB. Max. memory is 11.5 GB. [2020-10-19 18:08:15,580 INFO L168 Benchmark]: Boogie Preprocessor took 96.84 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2020-10-19 18:08:15,580 INFO L168 Benchmark]: RCFGBuilder took 1347.22 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 937.8 MB in the end (delta: 113.8 MB). Peak memory consumption was 113.8 MB. Max. memory is 11.5 GB. [2020-10-19 18:08:15,581 INFO L168 Benchmark]: TraceAbstraction took 6198.73 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 185.6 MB). Free memory was 937.8 MB in the beginning and 1.3 GB in the end (delta: -316.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:08:15,581 INFO L168 Benchmark]: Witness Printer took 3.53 ms. Allocated memory is still 1.3 GB. Free memory is still 1.3 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:08:15,585 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 865.75 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.1 MB). Free memory was 949.2 MB in the beginning and 1.1 GB in the end (delta: -109.3 MB). Peak memory consumption was 26.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 96.84 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1347.22 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 937.8 MB in the end (delta: 113.8 MB). Peak memory consumption was 113.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 6198.73 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 185.6 MB). Free memory was 937.8 MB in the beginning and 1.3 GB in the end (delta: -316.3 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 3.53 ms. Allocated memory is still 1.3 GB. Free memory is still 1.3 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 777]: 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 777. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L778] CALL entry_point() [L773] int condition = __VERIFIER_nondet_int(); [L774] CALL, EXPR alloc_16(condition) [L761] COND TRUE \read(condition) [L762] CALL, EXPR ldv_malloc(sizeof(struct A16)) [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L762] RET, EXPR ldv_malloc(sizeof(struct A16)) [L762] struct A16 *p = (struct A16 *)ldv_malloc(sizeof(struct A16)); [L763] return p; [L774] RET, EXPR alloc_16(condition) [L774] struct A16 *p = alloc_16(condition); [L775] CALL free_16(p, condition) [L768] COND FALSE !(\read(condition)) [L775] RET free_16(p, condition) [L778] RET entry_point() - StatisticsResult: Ultimate Automizer benchmark data CFG has 49 procedures, 347 locations, 74 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 6.1s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 190 SDtfs, 107 SDslu, 890 SDs, 0 SdLazy, 453 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 272 GetRequests, 220 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=107occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 15 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 135 NumberOfCodeBlocks, 135 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 258 ConstructedInterpolants, 0 QuantifiedInterpolants, 14665 SizeOfPredicates, 16 NumberOfNonLiveVariables, 493 ConjunctsInSsa, 57 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...