./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test4-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 3d056a1f 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_test4-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-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 64bit --witnessprinter.graph.data.programhash a2aa33a4d599a5d6897f5617ce765d9180019e00 ......................................................................................................................... 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_test4-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-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 64bit --witnessprinter.graph.data.programhash a2aa33a4d599a5d6897f5617ce765d9180019e00 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.1.24-3d056a1 [2019-11-22 13:49:31,749 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-22 13:49:31,752 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-22 13:49:31,767 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-22 13:49:31,768 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-22 13:49:31,769 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-22 13:49:31,770 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-22 13:49:31,772 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-22 13:49:31,786 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-22 13:49:31,788 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-22 13:49:31,789 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-22 13:49:31,790 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-22 13:49:31,791 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-22 13:49:31,795 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-22 13:49:31,796 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-22 13:49:31,798 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-22 13:49:31,800 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-22 13:49:31,801 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-22 13:49:31,803 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-22 13:49:31,805 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-22 13:49:31,806 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-22 13:49:31,807 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-22 13:49:31,808 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-22 13:49:31,809 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-22 13:49:31,811 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-22 13:49:31,811 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-22 13:49:31,812 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-22 13:49:31,812 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-22 13:49:31,813 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-22 13:49:31,814 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-22 13:49:31,814 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-22 13:49:31,815 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-22 13:49:31,816 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-22 13:49:31,816 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-22 13:49:31,817 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-22 13:49:31,818 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-22 13:49:31,818 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-22 13:49:31,818 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-22 13:49:31,819 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-22 13:49:31,820 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-22 13:49:31,820 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-22 13:49:31,821 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2019-11-22 13:49:31,835 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-22 13:49:31,836 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-22 13:49:31,837 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-22 13:49:31,837 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-22 13:49:31,837 INFO L138 SettingsManager]: * Use SBE=true [2019-11-22 13:49:31,838 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-22 13:49:31,838 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-22 13:49:31,838 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-22 13:49:31,838 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-22 13:49:31,838 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-22 13:49:31,839 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-22 13:49:31,839 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-22 13:49:31,839 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-22 13:49:31,839 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-22 13:49:31,839 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-22 13:49:31,840 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-22 13:49:31,840 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-22 13:49:31,840 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-22 13:49:31,840 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-22 13:49:31,841 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-22 13:49:31,841 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-22 13:49:31,841 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-22 13:49:31,841 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-22 13:49:31,842 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-22 13:49:31,842 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a2aa33a4d599a5d6897f5617ce765d9180019e00 [2019-11-22 13:49:32,136 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-22 13:49:32,149 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-22 13:49:32,153 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-22 13:49:32,154 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-22 13:49:32,155 INFO L275 PluginConnector]: CDTParser initialized [2019-11-22 13:49:32,155 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test4-1.i [2019-11-22 13:49:32,216 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/404f5af4e/deaa3a7c0a4e4b80b3dbd8404aa1b629/FLAGe6e228b07 [2019-11-22 13:49:32,779 INFO L306 CDTParser]: Found 1 translation units. [2019-11-22 13:49:32,780 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test4-1.i [2019-11-22 13:49:32,807 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/404f5af4e/deaa3a7c0a4e4b80b3dbd8404aa1b629/FLAGe6e228b07 [2019-11-22 13:49:33,072 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/404f5af4e/deaa3a7c0a4e4b80b3dbd8404aa1b629 [2019-11-22 13:49:33,075 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-22 13:49:33,076 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-22 13:49:33,077 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-22 13:49:33,077 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-22 13:49:33,081 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-22 13:49:33,082 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:49:33" (1/1) ... [2019-11-22 13:49:33,084 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f36572e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:33, skipping insertion in model container [2019-11-22 13:49:33,085 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:49:33" (1/1) ... [2019-11-22 13:49:33,092 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-22 13:49:33,151 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-22 13:49:33,581 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-22 13:49:33,609 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) [2019-11-22 13:49:33,610 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5eacfcdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:33, skipping insertion in model container [2019-11-22 13:49:33,610 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-22 13:49:33,611 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2019-11-22 13:49:33,615 INFO L168 Benchmark]: Toolchain (without parser) took 536.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -186.9 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. [2019-11-22 13:49:33,616 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-22 13:49:33,617 INFO L168 Benchmark]: CACSL2BoogieTranslator took 533.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -186.9 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. [2019-11-22 13:49:33,621 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 533.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -186.9 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 577]: 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 0.1.24-3d056a1 [2019-11-22 13:49:35,318 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-22 13:49:35,321 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-22 13:49:35,339 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-22 13:49:35,339 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-22 13:49:35,341 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-22 13:49:35,343 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-22 13:49:35,352 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-22 13:49:35,357 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-22 13:49:35,361 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-22 13:49:35,363 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-22 13:49:35,365 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-22 13:49:35,365 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-22 13:49:35,368 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-22 13:49:35,369 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-22 13:49:35,372 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-22 13:49:35,373 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-22 13:49:35,375 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-22 13:49:35,378 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-22 13:49:35,382 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-22 13:49:35,387 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-22 13:49:35,388 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-22 13:49:35,389 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-22 13:49:35,391 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-22 13:49:35,395 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-22 13:49:35,395 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-22 13:49:35,395 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-22 13:49:35,397 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-22 13:49:35,397 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-22 13:49:35,398 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-22 13:49:35,399 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-22 13:49:35,399 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-22 13:49:35,400 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-22 13:49:35,401 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-22 13:49:35,402 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-22 13:49:35,403 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-22 13:49:35,404 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-22 13:49:35,404 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-22 13:49:35,404 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-22 13:49:35,408 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-22 13:49:35,410 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-22 13:49:35,411 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf [2019-11-22 13:49:35,448 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-22 13:49:35,448 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-22 13:49:35,452 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-22 13:49:35,455 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-22 13:49:35,455 INFO L138 SettingsManager]: * Use SBE=true [2019-11-22 13:49:35,455 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-22 13:49:35,456 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-22 13:49:35,456 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-22 13:49:35,456 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-22 13:49:35,457 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-22 13:49:35,457 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-22 13:49:35,457 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-22 13:49:35,457 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-22 13:49:35,457 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-22 13:49:35,459 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-22 13:49:35,459 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-22 13:49:35,459 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-22 13:49:35,460 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-22 13:49:35,460 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-22 13:49:35,460 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-22 13:49:35,460 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-22 13:49:35,460 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-22 13:49:35,461 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-22 13:49:35,461 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-22 13:49:35,461 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-22 13:49:35,461 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-22 13:49:35,462 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-22 13:49:35,462 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a2aa33a4d599a5d6897f5617ce765d9180019e00 [2019-11-22 13:49:35,742 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-22 13:49:35,756 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-22 13:49:35,759 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-22 13:49:35,761 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-22 13:49:35,761 INFO L275 PluginConnector]: CDTParser initialized [2019-11-22 13:49:35,762 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test4-1.i [2019-11-22 13:49:35,832 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d1f4e263/a9310b6a0fdb4a3c93aed8593dfa326d/FLAG5a9737bd4 [2019-11-22 13:49:36,417 INFO L306 CDTParser]: Found 1 translation units. [2019-11-22 13:49:36,418 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test4-1.i [2019-11-22 13:49:36,433 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d1f4e263/a9310b6a0fdb4a3c93aed8593dfa326d/FLAG5a9737bd4 [2019-11-22 13:49:36,721 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d1f4e263/a9310b6a0fdb4a3c93aed8593dfa326d [2019-11-22 13:49:36,725 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-22 13:49:36,727 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-22 13:49:36,728 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-22 13:49:36,728 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-22 13:49:36,731 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-22 13:49:36,732 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:49:36" (1/1) ... [2019-11-22 13:49:36,735 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a2288bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:36, skipping insertion in model container [2019-11-22 13:49:36,735 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:49:36" (1/1) ... [2019-11-22 13:49:36,741 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-22 13:49:36,785 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-22 13:49:37,250 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-22 13:49:37,287 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-11-22 13:49:37,319 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-22 13:49:37,416 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-22 13:49:37,440 INFO L203 MainTranslator]: Completed pre-run [2019-11-22 13:49:37,523 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-22 13:49:37,633 INFO L208 MainTranslator]: Completed translation [2019-11-22 13:49:37,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:37 WrapperNode [2019-11-22 13:49:37,634 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-22 13:49:37,635 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-22 13:49:37,636 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-22 13:49:37,636 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-22 13:49:37,648 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:37" (1/1) ... [2019-11-22 13:49:37,649 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:37" (1/1) ... [2019-11-22 13:49:37,677 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:37" (1/1) ... [2019-11-22 13:49:37,677 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:37" (1/1) ... [2019-11-22 13:49:37,709 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:37" (1/1) ... [2019-11-22 13:49:37,717 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:37" (1/1) ... [2019-11-22 13:49:37,724 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:37" (1/1) ... [2019-11-22 13:49:37,735 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-22 13:49:37,736 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-22 13:49:37,736 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-22 13:49:37,736 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-22 13:49:37,737 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:37" (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 [2019-11-22 13:49:37,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-22 13:49:37,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-22 13:49:37,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-22 13:49:37,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2019-11-22 13:49:37,809 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-22 13:49:37,809 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-22 13:49:37,809 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-22 13:49:37,809 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-22 13:49:37,810 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-22 13:49:37,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-11-22 13:49:37,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-11-22 13:49:37,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-22 13:49:37,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-22 13:49:37,811 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-11-22 13:49:37,811 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-22 13:49:37,811 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-11-22 13:49:37,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-11-22 13:49:37,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-11-22 13:49:37,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-11-22 13:49:37,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-11-22 13:49:37,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-11-22 13:49:37,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-11-22 13:49:37,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-11-22 13:49:37,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-11-22 13:49:37,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-11-22 13:49:37,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-11-22 13:49:37,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-11-22 13:49:37,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-11-22 13:49:37,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-11-22 13:49:37,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-11-22 13:49:37,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-11-22 13:49:37,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-11-22 13:49:37,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-11-22 13:49:37,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-11-22 13:49:37,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-11-22 13:49:37,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-11-22 13:49:37,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-11-22 13:49:37,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-11-22 13:49:37,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-11-22 13:49:37,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-11-22 13:49:37,817 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-22 13:49:37,817 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-22 13:49:37,818 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-11-22 13:49:37,818 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-22 13:49:37,818 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-22 13:49:37,818 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-22 13:49:37,818 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-22 13:49:37,819 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-22 13:49:37,819 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-22 13:49:37,819 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-22 13:49:37,819 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-22 13:49:37,820 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-22 13:49:37,820 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-22 13:49:37,820 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-22 13:49:37,820 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-22 13:49:37,820 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-22 13:49:37,821 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-22 13:49:37,821 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-22 13:49:37,821 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-22 13:49:37,821 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-22 13:49:37,821 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-22 13:49:37,822 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-22 13:49:37,822 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-22 13:49:37,822 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-22 13:49:37,822 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-22 13:49:37,822 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-22 13:49:37,823 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-22 13:49:37,823 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-22 13:49:37,823 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-22 13:49:37,823 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-22 13:49:37,824 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-22 13:49:37,824 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-22 13:49:37,824 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-22 13:49:37,824 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-22 13:49:37,824 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-22 13:49:37,825 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-22 13:49:37,825 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-22 13:49:37,825 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-22 13:49:37,825 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-22 13:49:37,825 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-22 13:49:37,826 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-22 13:49:37,826 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-22 13:49:37,826 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-22 13:49:37,826 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-22 13:49:37,826 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-22 13:49:37,827 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-22 13:49:37,827 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-22 13:49:37,827 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-22 13:49:37,827 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-22 13:49:37,827 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-22 13:49:37,828 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-22 13:49:37,828 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-22 13:49:37,828 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-22 13:49:37,828 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-22 13:49:37,828 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-22 13:49:37,829 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-22 13:49:37,829 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-22 13:49:37,829 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-22 13:49:37,829 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-22 13:49:37,829 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-22 13:49:37,830 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-22 13:49:37,830 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-22 13:49:37,830 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-22 13:49:37,830 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-22 13:49:37,830 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-22 13:49:37,831 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-22 13:49:37,831 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-22 13:49:37,831 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-22 13:49:37,831 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-22 13:49:37,831 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-22 13:49:37,831 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-22 13:49:37,832 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-22 13:49:37,832 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-22 13:49:37,832 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-22 13:49:37,832 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-22 13:49:37,832 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-22 13:49:37,833 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-22 13:49:37,833 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-22 13:49:37,833 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-22 13:49:37,833 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-22 13:49:37,834 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-22 13:49:37,834 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-22 13:49:37,834 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-22 13:49:37,834 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-22 13:49:37,834 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-22 13:49:37,835 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-22 13:49:37,835 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-22 13:49:37,835 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-22 13:49:37,835 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-22 13:49:37,835 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-22 13:49:37,836 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-22 13:49:37,836 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-22 13:49:37,836 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-22 13:49:37,836 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-22 13:49:37,836 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-22 13:49:37,837 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-22 13:49:37,837 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-22 13:49:37,837 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-22 13:49:37,837 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-22 13:49:37,837 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-22 13:49:37,838 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-22 13:49:37,838 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-22 13:49:37,838 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-22 13:49:37,838 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-22 13:49:37,838 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-22 13:49:37,839 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-22 13:49:37,839 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-22 13:49:37,839 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-22 13:49:37,839 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-22 13:49:37,840 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-22 13:49:37,840 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-22 13:49:37,840 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-22 13:49:37,840 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-22 13:49:37,840 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-22 13:49:37,841 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-22 13:49:37,841 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-22 13:49:37,841 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-22 13:49:37,841 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-11-22 13:49:37,841 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-11-22 13:49:37,841 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-22 13:49:37,842 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-22 13:49:37,842 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-22 13:49:37,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-22 13:49:37,842 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-22 13:49:37,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-22 13:49:37,843 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-11-22 13:49:37,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-22 13:49:37,843 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-22 13:49:37,843 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-11-22 13:49:37,843 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-11-22 13:49:37,843 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-22 13:49:37,844 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-11-22 13:49:37,844 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-11-22 13:49:37,844 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-11-22 13:49:37,844 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-11-22 13:49:37,844 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-22 13:49:37,845 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-11-22 13:49:37,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-22 13:49:37,845 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-11-22 13:49:37,845 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-11-22 13:49:37,845 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-11-22 13:49:37,846 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-11-22 13:49:37,846 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-11-22 13:49:37,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-22 13:49:37,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-22 13:49:37,846 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-11-22 13:49:37,847 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-11-22 13:49:37,847 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-22 13:49:37,847 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-11-22 13:49:37,847 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-11-22 13:49:37,848 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-11-22 13:49:37,848 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-11-22 13:49:37,848 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-11-22 13:49:37,848 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-11-22 13:49:37,848 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-11-22 13:49:37,849 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-11-22 13:49:37,849 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-11-22 13:49:37,849 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-11-22 13:49:37,849 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-11-22 13:49:37,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-22 13:49:37,850 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-22 13:49:37,850 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-22 13:49:37,850 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-11-22 13:49:37,850 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-22 13:49:37,850 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-22 13:49:37,851 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-22 13:49:37,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-22 13:49:37,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-22 13:49:37,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2019-11-22 13:49:37,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-11-22 13:49:37,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-11-22 13:49:37,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-22 13:49:37,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-22 13:49:38,541 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-22 13:49:38,942 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-22 13:49:39,352 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-22 13:49:39,352 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-22 13:49:39,355 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:49:39 BoogieIcfgContainer [2019-11-22 13:49:39,355 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-22 13:49:39,357 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-22 13:49:39,357 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-22 13:49:39,360 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-22 13:49:39,361 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:49:36" (1/3) ... [2019-11-22 13:49:39,362 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50379f37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:49:39, skipping insertion in model container [2019-11-22 13:49:39,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:37" (2/3) ... [2019-11-22 13:49:39,363 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50379f37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:49:39, skipping insertion in model container [2019-11-22 13:49:39,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:49:39" (3/3) ... [2019-11-22 13:49:39,365 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test4-1.i [2019-11-22 13:49:39,375 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-22 13:49:39,385 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 74 error locations. [2019-11-22 13:49:39,397 INFO L249 AbstractCegarLoop]: Starting to check reachability of 74 error locations. [2019-11-22 13:49:39,416 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-22 13:49:39,416 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-22 13:49:39,416 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-22 13:49:39,417 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-22 13:49:39,417 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-22 13:49:39,417 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-22 13:49:39,417 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-22 13:49:39,417 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-22 13:49:39,435 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states. [2019-11-22 13:49:39,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-22 13:49:39,444 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 13:49:39,445 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 13:49:39,446 INFO L410 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, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 13:49:39,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 13:49:39,452 INFO L82 PathProgramCache]: Analyzing trace with hash 927863930, now seen corresponding path program 1 times [2019-11-22 13:49:39,464 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 13:49:39,464 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1496480184] [2019-11-22 13:49:39,465 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:49:39,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 13:49:39,812 INFO L255 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-22 13:49:39,819 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 13:49:39,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 13:49:39,891 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 13:49:40,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 13:49:40,039 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1496480184] [2019-11-22 13:49:40,040 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 13:49:40,041 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-22 13:49:40,044 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74245757] [2019-11-22 13:49:40,053 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-22 13:49:40,053 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 13:49:40,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-22 13:49:40,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 13:49:40,082 INFO L87 Difference]: Start difference. First operand 98 states. Second operand 5 states. [2019-11-22 13:49:40,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 13:49:40,148 INFO L93 Difference]: Finished difference Result 42 states and 47 transitions. [2019-11-22 13:49:40,150 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-22 13:49:40,152 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2019-11-22 13:49:40,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 13:49:40,169 INFO L225 Difference]: With dead ends: 42 [2019-11-22 13:49:40,177 INFO L226 Difference]: Without dead ends: 39 [2019-11-22 13:49:40,181 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 13:49:40,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-11-22 13:49:40,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 29. [2019-11-22 13:49:40,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-11-22 13:49:40,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2019-11-22 13:49:40,278 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 16 [2019-11-22 13:49:40,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 13:49:40,279 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2019-11-22 13:49:40,279 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-22 13:49:40,279 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2019-11-22 13:49:40,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-22 13:49:40,282 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 13:49:40,282 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 13:49:40,488 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:49:40,489 INFO L410 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, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 13:49:40,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 13:49:40,490 INFO L82 PathProgramCache]: Analyzing trace with hash -1624293031, now seen corresponding path program 1 times [2019-11-22 13:49:40,492 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 13:49:40,492 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1119796100] [2019-11-22 13:49:40,493 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:49:40,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 13:49:40,754 INFO L255 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-22 13:49:40,756 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 13:49:40,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 13:49:40,767 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 13:49:40,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 13:49:40,820 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1119796100] [2019-11-22 13:49:40,820 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 13:49:40,820 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-22 13:49:40,820 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482244525] [2019-11-22 13:49:40,822 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-22 13:49:40,822 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 13:49:40,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-22 13:49:40,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-22 13:49:40,823 INFO L87 Difference]: Start difference. First operand 29 states and 32 transitions. Second operand 3 states. [2019-11-22 13:49:40,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 13:49:40,887 INFO L93 Difference]: Finished difference Result 40 states and 44 transitions. [2019-11-22 13:49:40,887 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-22 13:49:40,887 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2019-11-22 13:49:40,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 13:49:40,889 INFO L225 Difference]: With dead ends: 40 [2019-11-22 13:49:40,889 INFO L226 Difference]: Without dead ends: 37 [2019-11-22 13:49:40,890 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-22 13:49:40,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-11-22 13:49:40,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 25. [2019-11-22 13:49:40,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-11-22 13:49:40,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2019-11-22 13:49:40,903 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 16 [2019-11-22 13:49:40,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 13:49:40,903 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2019-11-22 13:49:40,904 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-22 13:49:40,904 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2019-11-22 13:49:40,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-22 13:49:40,905 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 13:49:40,905 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 13:49:41,108 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:49:41,109 INFO L410 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, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 13:49:41,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 13:49:41,110 INFO L82 PathProgramCache]: Analyzing trace with hash -1911181477, now seen corresponding path program 1 times [2019-11-22 13:49:41,110 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 13:49:41,110 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2085406830] [2019-11-22 13:49:41,111 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:49:41,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 13:49:41,408 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-22 13:49:41,413 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 13:49:41,452 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-22 13:49:41,452 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 13:49:41,507 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-22 13:49:41,508 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2085406830] [2019-11-22 13:49:41,508 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 13:49:41,508 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-22 13:49:41,508 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745656289] [2019-11-22 13:49:41,509 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-22 13:49:41,509 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 13:49:41,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-22 13:49:41,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 13:49:41,510 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand 5 states. [2019-11-22 13:49:41,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 13:49:41,530 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2019-11-22 13:49:41,531 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-22 13:49:41,531 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2019-11-22 13:49:41,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 13:49:41,532 INFO L225 Difference]: With dead ends: 24 [2019-11-22 13:49:41,532 INFO L226 Difference]: Without dead ends: 24 [2019-11-22 13:49:41,535 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 13:49:41,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-11-22 13:49:41,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2019-11-22 13:49:41,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-11-22 13:49:41,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2019-11-22 13:49:41,540 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 20 [2019-11-22 13:49:41,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 13:49:41,543 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2019-11-22 13:49:41,543 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-22 13:49:41,543 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2019-11-22 13:49:41,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-22 13:49:41,545 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 13:49:41,545 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 13:49:41,750 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:49:41,750 INFO L410 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, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 13:49:41,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 13:49:41,751 INFO L82 PathProgramCache]: Analyzing trace with hash 882916751, now seen corresponding path program 1 times [2019-11-22 13:49:41,751 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 13:49:41,752 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [261221670] [2019-11-22 13:49:41,752 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:49:41,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 13:49:41,972 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-22 13:49:41,973 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 13:49:42,004 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-22 13:49:42,004 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 13:49:42,046 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-22 13:49:42,047 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [261221670] [2019-11-22 13:49:42,047 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 13:49:42,047 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-22 13:49:42,047 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872452812] [2019-11-22 13:49:42,049 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-22 13:49:42,049 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 13:49:42,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-22 13:49:42,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 13:49:42,049 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand 5 states. [2019-11-22 13:49:42,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 13:49:42,112 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions. [2019-11-22 13:49:42,112 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-22 13:49:42,112 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2019-11-22 13:49:42,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 13:49:42,113 INFO L225 Difference]: With dead ends: 29 [2019-11-22 13:49:42,113 INFO L226 Difference]: Without dead ends: 29 [2019-11-22 13:49:42,114 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 13:49:42,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-11-22 13:49:42,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2019-11-22 13:49:42,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-11-22 13:49:42,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2019-11-22 13:49:42,123 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 21 [2019-11-22 13:49:42,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 13:49:42,123 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2019-11-22 13:49:42,123 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-22 13:49:42,123 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2019-11-22 13:49:42,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-22 13:49:42,124 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 13:49:42,125 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 13:49:42,327 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:49:42,328 INFO L410 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, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 13:49:42,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 13:49:42,328 INFO L82 PathProgramCache]: Analyzing trace with hash 911545902, now seen corresponding path program 1 times [2019-11-22 13:49:42,329 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 13:49:42,329 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1684310518] [2019-11-22 13:49:42,330 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:49:42,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 13:49:42,549 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-22 13:49:42,550 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 13:49:42,678 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 13:49:42,682 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 13:49:42,813 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-22 13:49:42,813 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1684310518] [2019-11-22 13:49:42,813 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-22 13:49:42,814 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2019-11-22 13:49:42,814 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497565917] [2019-11-22 13:49:42,814 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-22 13:49:42,814 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 13:49:42,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-22 13:49:42,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2019-11-22 13:49:42,816 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand 6 states. [2019-11-22 13:49:42,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 13:49:42,936 INFO L93 Difference]: Finished difference Result 48 states and 51 transitions. [2019-11-22 13:49:42,939 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-22 13:49:42,939 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2019-11-22 13:49:42,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 13:49:42,940 INFO L225 Difference]: With dead ends: 48 [2019-11-22 13:49:42,940 INFO L226 Difference]: Without dead ends: 48 [2019-11-22 13:49:42,941 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2019-11-22 13:49:42,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2019-11-22 13:49:42,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 40. [2019-11-22 13:49:42,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-11-22 13:49:42,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 44 transitions. [2019-11-22 13:49:42,955 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 44 transitions. Word has length 21 [2019-11-22 13:49:42,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 13:49:42,956 INFO L462 AbstractCegarLoop]: Abstraction has 40 states and 44 transitions. [2019-11-22 13:49:42,958 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-22 13:49:42,958 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 44 transitions. [2019-11-22 13:49:42,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-22 13:49:42,959 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 13:49:42,959 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 13:49:43,162 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:49:43,163 INFO L410 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, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 13:49:43,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 13:49:43,164 INFO L82 PathProgramCache]: Analyzing trace with hash 618142895, now seen corresponding path program 1 times [2019-11-22 13:49:43,165 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 13:49:43,165 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1497782279] [2019-11-22 13:49:43,165 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:49:43,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 13:49:43,373 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-22 13:49:43,374 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 13:49:43,423 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-22 13:49:43,423 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 13:49:43,497 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-22 13:49:43,497 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1497782279] [2019-11-22 13:49:43,497 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 13:49:43,497 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-22 13:49:43,498 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532719567] [2019-11-22 13:49:43,498 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-22 13:49:43,498 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 13:49:43,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-22 13:49:43,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2019-11-22 13:49:43,499 INFO L87 Difference]: Start difference. First operand 40 states and 44 transitions. Second operand 9 states. [2019-11-22 13:49:43,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 13:49:43,643 INFO L93 Difference]: Finished difference Result 42 states and 46 transitions. [2019-11-22 13:49:43,644 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-22 13:49:43,644 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2019-11-22 13:49:43,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 13:49:43,646 INFO L225 Difference]: With dead ends: 42 [2019-11-22 13:49:43,647 INFO L226 Difference]: Without dead ends: 42 [2019-11-22 13:49:43,647 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2019-11-22 13:49:43,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2019-11-22 13:49:43,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 36. [2019-11-22 13:49:43,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-11-22 13:49:43,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2019-11-22 13:49:43,660 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 21 [2019-11-22 13:49:43,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 13:49:43,661 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2019-11-22 13:49:43,661 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-22 13:49:43,662 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2019-11-22 13:49:43,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-22 13:49:43,663 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 13:49:43,663 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 13:49:43,866 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:49:43,867 INFO L410 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, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 13:49:43,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 13:49:43,868 INFO L82 PathProgramCache]: Analyzing trace with hash 1600615901, now seen corresponding path program 1 times [2019-11-22 13:49:43,869 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 13:49:43,869 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1864913131] [2019-11-22 13:49:43,869 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:49:44,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 13:49:44,120 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-22 13:49:44,121 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 13:49:44,160 INFO L377 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 [2019-11-22 13:49:44,161 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 13:49:44,164 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 13:49:44,164 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 13:49:44,164 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-22 13:49:44,190 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-22 13:49:44,193 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 13:49:44,239 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-22 13:49:44,240 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1864913131] [2019-11-22 13:49:44,240 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 13:49:44,240 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-22 13:49:44,240 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171150248] [2019-11-22 13:49:44,241 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-22 13:49:44,241 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 13:49:44,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-22 13:49:44,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 13:49:44,241 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand 5 states. [2019-11-22 13:49:44,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 13:49:44,291 INFO L93 Difference]: Finished difference Result 35 states and 39 transitions. [2019-11-22 13:49:44,291 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-22 13:49:44,292 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-11-22 13:49:44,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 13:49:44,293 INFO L225 Difference]: With dead ends: 35 [2019-11-22 13:49:44,293 INFO L226 Difference]: Without dead ends: 35 [2019-11-22 13:49:44,293 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 13:49:44,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-11-22 13:49:44,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 31. [2019-11-22 13:49:44,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-11-22 13:49:44,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2019-11-22 13:49:44,298 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 35 transitions. Word has length 22 [2019-11-22 13:49:44,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 13:49:44,299 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 35 transitions. [2019-11-22 13:49:44,299 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-22 13:49:44,299 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2019-11-22 13:49:44,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-22 13:49:44,300 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 13:49:44,300 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 13:49:44,503 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:49:44,504 INFO L410 AbstractCegarLoop]: === Iteration 8 === [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, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 13:49:44,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 13:49:44,504 INFO L82 PathProgramCache]: Analyzing trace with hash 1221784944, now seen corresponding path program 1 times [2019-11-22 13:49:44,505 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 13:49:44,505 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1513330817] [2019-11-22 13:49:44,505 INFO L94 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 [2019-11-22 13:49:44,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-22 13:49:44,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-22 13:49:44,874 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-11-22 13:49:44,874 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-22 13:49:45,074 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:49:45,088 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2019-11-22 13:49:45,096 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# [2019-11-22 13:49:45,097 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# [2019-11-22 13:49:45,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:49:45 BoogieIcfgContainer [2019-11-22 13:49:45,110 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-22 13:49:45,114 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-22 13:49:45,114 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-22 13:49:45,114 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-22 13:49:45,115 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:49:39" (3/4) ... [2019-11-22 13:49:45,117 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-22 13:49:45,118 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-22 13:49:45,119 INFO L168 Benchmark]: Toolchain (without parser) took 8392.89 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 225.4 MB). Free memory was 956.3 MB in the beginning and 898.1 MB in the end (delta: 58.2 MB). Peak memory consumption was 283.6 MB. Max. memory is 11.5 GB. [2019-11-22 13:49:45,120 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-22 13:49:45,121 INFO L168 Benchmark]: CACSL2BoogieTranslator took 907.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -150.8 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. [2019-11-22 13:49:45,121 INFO L168 Benchmark]: Boogie Preprocessor took 99.95 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-22 13:49:45,124 INFO L168 Benchmark]: RCFGBuilder took 1619.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 990.8 MB in the end (delta: 110.9 MB). Peak memory consumption was 110.9 MB. Max. memory is 11.5 GB. [2019-11-22 13:49:45,125 INFO L168 Benchmark]: TraceAbstraction took 5753.56 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 73.9 MB). Free memory was 990.8 MB in the beginning and 898.1 MB in the end (delta: 92.7 MB). Peak memory consumption was 166.6 MB. Max. memory is 11.5 GB. [2019-11-22 13:49:45,125 INFO L168 Benchmark]: Witness Printer took 4.04 ms. Allocated memory is still 1.3 GB. Free memory is still 898.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-22 13:49:45,129 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 907.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -150.8 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 99.95 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1619.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 990.8 MB in the end (delta: 110.9 MB). Peak memory consumption was 110.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5753.56 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 73.9 MB). Free memory was 990.8 MB in the beginning and 898.1 MB in the end (delta: 92.7 MB). Peak memory consumption was 166.6 MB. Max. memory is 11.5 GB. * Witness Printer took 4.04 ms. Allocated memory is still 1.3 GB. Free memory is still 898.1 MB. 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.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 765]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 765. Possible FailurePath: [L570] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; VAL [\old(ldv_global_msg_list)=null, \old(ldv_global_msg_list)=null, ldv_global_msg_list={-2080308292:0}] [L766] CALL entry_point() VAL [ldv_global_msg_list={-2080308292:0}] [L759] CALL, EXPR ldv_malloc(sizeof(int)) VAL [\old(size)=4, ldv_global_msg_list={-2080308292:0}] [L527] COND TRUE __VERIFIER_nondet_int() [L528] return malloc(size); VAL [\old(size)=4, \result={32:0}, ldv_global_msg_list={-2080308292:0}, malloc(size)={32:0}, size=4] [L759] RET, EXPR ldv_malloc(sizeof(int)) VAL [ldv_global_msg_list={-2080308292:0}, ldv_malloc(sizeof(int))={32:0}] [L759] int *p = (int *)ldv_malloc(sizeof(int)); [L760] COND TRUE \read(*p) VAL [ldv_global_msg_list={-2080308292:0}, p={32:0}] [L761] CALL, EXPR ldv_malloc(sizeof(int)) VAL [\old(size)=4, ldv_global_msg_list={-2080308292:0}] [L527] COND TRUE __VERIFIER_nondet_int() [L528] return malloc(size); VAL [\old(size)=4, \result={1677787827:0}, ldv_global_msg_list={-2080308292:0}, malloc(size)={1677787827:0}, size=4] [L761] RET, EXPR ldv_malloc(sizeof(int)) VAL [ldv_global_msg_list={-2080308292:0}, ldv_malloc(sizeof(int))={1677787827:0}, p={32:0}] [L761] int *q = (int *)ldv_malloc(sizeof(int)); [L762] free(q) VAL [ldv_global_msg_list={-2080308292:0}, p={32:0}, q={1677787827:0}] [L762] free(q) VAL [ldv_global_msg_list={-2080308292:0}, p={32:0}, q={1677787827:0}] [L762] free(q) [L766] RET entry_point() VAL [ldv_global_msg_list={-2080308292:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 47 procedures, 338 locations, 74 error locations. Result: UNSAFE, OverallTime: 5.6s, OverallIterations: 8, TraceHistogramMax: 2, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 182 SDtfs, 58 SDslu, 353 SDs, 0 SdLazy, 209 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 269 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=98occurred 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: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 40 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 162 NumberOfCodeBlocks, 162 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 260 ConstructedInterpolants, 12 QuantifiedInterpolants, 12688 SizeOfPredicates, 10 NumberOfNonLiveVariables, 543 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 14 InterpolantComputations, 13 PerfectInterpolantSequences, 38/40 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: 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...