./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test6_3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 906a4fb5 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/memleaks_test6_3.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9988836ddee06b99001d03a87a3e72125eac1288 ............................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -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_test6_3.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9988836ddee06b99001d03a87a3e72125eac1288 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.1.25-906a4fb [2020-10-19 18:10:48,489 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 18:10:48,491 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 18:10:48,530 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 18:10:48,531 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 18:10:48,532 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 18:10:48,533 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 18:10:48,535 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 18:10:48,537 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 18:10:48,538 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 18:10:48,539 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 18:10:48,540 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 18:10:48,540 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 18:10:48,541 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 18:10:48,542 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 18:10:48,543 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 18:10:48,544 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 18:10:48,545 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 18:10:48,547 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 18:10:48,549 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 18:10:48,550 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 18:10:48,551 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 18:10:48,552 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 18:10:48,553 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 18:10:48,556 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 18:10:48,556 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 18:10:48,556 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 18:10:48,557 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 18:10:48,557 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 18:10:48,558 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 18:10:48,559 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 18:10:48,559 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 18:10:48,561 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 18:10:48,562 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 18:10:48,563 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 18:10:48,563 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 18:10:48,564 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 18:10:48,564 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 18:10:48,564 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 18:10:48,565 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 18:10:48,566 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 18:10:48,567 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-10-19 18:10:48,590 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 18:10:48,590 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 18:10:48,591 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 18:10:48,592 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 18:10:48,592 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 18:10:48,592 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 18:10:48,592 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 18:10:48,593 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 18:10:48,593 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 18:10:48,593 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 18:10:48,593 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 18:10:48,594 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-19 18:10:48,594 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-19 18:10:48,594 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-19 18:10:48,594 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 18:10:48,594 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-19 18:10:48,595 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 18:10:48,595 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 18:10:48,595 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 18:10:48,595 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 18:10:48,595 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 18:10:48,596 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 18:10:48,596 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 18:10:48,596 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 18:10:48,596 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 18:10:48,597 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 18:10:48,597 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-19 18:10:48,597 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 18:10:48,597 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9988836ddee06b99001d03a87a3e72125eac1288 [2020-10-19 18:10:48,934 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 18:10:48,948 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 18:10:48,951 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 18:10:48,953 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 18:10:48,953 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 18:10:48,954 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test6_3.i [2020-10-19 18:10:49,009 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00cda31a0/cd9de9ffa1f34825a49fb42183908b7a/FLAG60c62df0d [2020-10-19 18:10:49,538 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 18:10:49,539 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test6_3.i [2020-10-19 18:10:49,559 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00cda31a0/cd9de9ffa1f34825a49fb42183908b7a/FLAG60c62df0d [2020-10-19 18:10:49,890 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00cda31a0/cd9de9ffa1f34825a49fb42183908b7a [2020-10-19 18:10:49,894 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 18:10:49,901 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-19 18:10:49,902 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 18:10:49,902 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 18:10:49,906 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 18:10:49,907 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:10:49" (1/1) ... [2020-10-19 18:10:49,910 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@186d45f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:10:49, skipping insertion in model container [2020-10-19 18:10:49,910 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:10:49" (1/1) ... [2020-10-19 18:10:49,918 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 18:10:49,962 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 18:10:50,410 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:10:50,436 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2020-10-19 18:10:50,437 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@12efb5d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:10:50, skipping insertion in model container [2020-10-19 18:10:50,437 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 18:10:50,438 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2020-10-19 18:10:50,441 INFO L168 Benchmark]: Toolchain (without parser) took 544.57 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 92.8 MB). Free memory was 955.9 MB in the beginning and 1.1 GB in the end (delta: -123.7 MB). Peak memory consumption was 26.0 MB. Max. memory is 11.5 GB. [2020-10-19 18:10:50,442 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:10:50,444 INFO L168 Benchmark]: CACSL2BoogieTranslator took 536.04 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 92.8 MB). Free memory was 955.9 MB in the beginning and 1.1 GB in the end (delta: -123.7 MB). Peak memory consumption was 26.0 MB. Max. memory is 11.5 GB. [2020-10-19 18:10:50,447 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 536.04 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 92.8 MB). Free memory was 955.9 MB in the beginning and 1.1 GB in the end (delta: -123.7 MB). Peak memory consumption was 26.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-906a4fb [2020-10-19 18:10:52,059 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 18:10:52,062 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 18:10:52,086 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 18:10:52,087 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 18:10:52,088 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 18:10:52,089 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 18:10:52,091 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 18:10:52,093 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 18:10:52,094 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 18:10:52,095 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 18:10:52,096 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 18:10:52,096 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 18:10:52,098 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 18:10:52,099 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 18:10:52,100 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 18:10:52,101 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 18:10:52,102 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 18:10:52,104 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 18:10:52,106 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 18:10:52,108 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 18:10:52,109 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 18:10:52,110 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 18:10:52,111 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 18:10:52,114 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 18:10:52,115 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 18:10:52,115 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 18:10:52,116 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 18:10:52,116 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 18:10:52,117 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 18:10:52,118 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 18:10:52,119 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 18:10:52,119 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 18:10:52,120 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 18:10:52,121 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 18:10:52,122 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 18:10:52,122 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 18:10:52,123 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 18:10:52,123 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 18:10:52,124 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 18:10:52,125 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 18:10:52,126 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2020-10-19 18:10:52,149 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 18:10:52,150 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 18:10:52,151 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 18:10:52,151 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 18:10:52,151 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 18:10:52,152 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 18:10:52,152 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 18:10:52,152 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 18:10:52,153 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 18:10:52,153 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 18:10:52,153 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 18:10:52,153 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-19 18:10:52,154 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-19 18:10:52,154 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-19 18:10:52,154 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 18:10:52,155 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-19 18:10:52,155 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-19 18:10:52,155 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-19 18:10:52,155 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 18:10:52,156 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 18:10:52,156 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 18:10:52,156 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 18:10:52,156 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 18:10:52,157 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 18:10:52,157 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 18:10:52,157 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 18:10:52,158 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 18:10:52,158 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-19 18:10:52,158 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-19 18:10:52,158 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 18:10:52,159 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-19 18:10:52,159 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9988836ddee06b99001d03a87a3e72125eac1288 [2020-10-19 18:10:52,447 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 18:10:52,459 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 18:10:52,462 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 18:10:52,464 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 18:10:52,464 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 18:10:52,465 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test6_3.i [2020-10-19 18:10:52,520 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce2ae8adf/2f2db30c1fd84e17ba74a868ecc2d3de/FLAG44e2ff5a8 [2020-10-19 18:10:53,036 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 18:10:53,037 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test6_3.i [2020-10-19 18:10:53,061 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce2ae8adf/2f2db30c1fd84e17ba74a868ecc2d3de/FLAG44e2ff5a8 [2020-10-19 18:10:53,254 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce2ae8adf/2f2db30c1fd84e17ba74a868ecc2d3de [2020-10-19 18:10:53,258 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 18:10:53,265 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-19 18:10:53,266 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 18:10:53,266 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 18:10:53,270 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 18:10:53,271 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:10:53" (1/1) ... [2020-10-19 18:10:53,274 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8142eb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:10:53, skipping insertion in model container [2020-10-19 18:10:53,274 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:10:53" (1/1) ... [2020-10-19 18:10:53,281 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 18:10:53,348 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 18:10:53,822 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:10:53,844 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-10-19 18:10:53,869 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 18:10:53,961 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:10:53,975 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 18:10:54,047 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:10:54,157 INFO L208 MainTranslator]: Completed translation [2020-10-19 18:10:54,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:10:54 WrapperNode [2020-10-19 18:10:54,159 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 18:10:54,160 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 18:10:54,160 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 18:10:54,160 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 18:10:54,174 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:10:54" (1/1) ... [2020-10-19 18:10:54,174 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:10:54" (1/1) ... [2020-10-19 18:10:54,201 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:10:54" (1/1) ... [2020-10-19 18:10:54,201 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:10:54" (1/1) ... [2020-10-19 18:10:54,234 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:10:54" (1/1) ... [2020-10-19 18:10:54,241 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:10:54" (1/1) ... [2020-10-19 18:10:54,260 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:10:54" (1/1) ... [2020-10-19 18:10:54,271 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 18:10:54,271 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 18:10:54,272 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 18:10:54,272 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 18:10:54,273 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:10:54" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 18:10:54,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-19 18:10:54,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 18:10:54,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-10-19 18:10:54,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2020-10-19 18:10:54,346 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-19 18:10:54,347 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-19 18:10:54,347 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-10-19 18:10:54,347 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-10-19 18:10:54,347 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-10-19 18:10:54,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2020-10-19 18:10:54,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2020-10-19 18:10:54,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-19 18:10:54,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-19 18:10:54,348 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2020-10-19 18:10:54,349 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2020-10-19 18:10:54,349 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2020-10-19 18:10:54,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2020-10-19 18:10:54,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2020-10-19 18:10:54,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2020-10-19 18:10:54,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2020-10-19 18:10:54,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2020-10-19 18:10:54,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2020-10-19 18:10:54,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2020-10-19 18:10:54,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2020-10-19 18:10:54,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2020-10-19 18:10:54,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2020-10-19 18:10:54,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2020-10-19 18:10:54,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2020-10-19 18:10:54,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2020-10-19 18:10:54,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2020-10-19 18:10:54,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2020-10-19 18:10:54,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2020-10-19 18:10:54,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2020-10-19 18:10:54,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2020-10-19 18:10:54,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2020-10-19 18:10:54,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2020-10-19 18:10:54,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2020-10-19 18:10:54,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2020-10-19 18:10:54,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2020-10-19 18:10:54,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2020-10-19 18:10:54,354 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2020-10-19 18:10:54,354 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2020-10-19 18:10:54,354 INFO L138 BoogieDeclarations]: Found implementation of procedure f6 [2020-10-19 18:10:54,355 INFO L138 BoogieDeclarations]: Found implementation of procedure g6 [2020-10-19 18:10:54,355 INFO L138 BoogieDeclarations]: Found implementation of procedure probe1_6 [2020-10-19 18:10:54,355 INFO L138 BoogieDeclarations]: Found implementation of procedure disconnect_2_6 [2020-10-19 18:10:54,355 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2020-10-19 18:10:54,355 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-19 18:10:54,356 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-10-19 18:10:54,356 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-19 18:10:54,356 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-10-19 18:10:54,356 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-19 18:10:54,357 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-19 18:10:54,357 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-19 18:10:54,357 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-19 18:10:54,357 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-19 18:10:54,357 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-19 18:10:54,358 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-19 18:10:54,358 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-19 18:10:54,358 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-19 18:10:54,358 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-19 18:10:54,358 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-19 18:10:54,359 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-19 18:10:54,359 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-19 18:10:54,359 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-19 18:10:54,359 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-19 18:10:54,360 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-19 18:10:54,360 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-19 18:10:54,360 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-19 18:10:54,360 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-10-19 18:10:54,360 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-10-19 18:10:54,361 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-10-19 18:10:54,361 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-19 18:10:54,361 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-19 18:10:54,361 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-19 18:10:54,361 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-19 18:10:54,362 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-19 18:10:54,362 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-19 18:10:54,362 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-19 18:10:54,362 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-19 18:10:54,362 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-19 18:10:54,363 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-19 18:10:54,363 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-19 18:10:54,363 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-19 18:10:54,363 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-19 18:10:54,363 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-19 18:10:54,364 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-19 18:10:54,364 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-19 18:10:54,364 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-19 18:10:54,364 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-19 18:10:54,364 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-19 18:10:54,365 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-19 18:10:54,365 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-19 18:10:54,365 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-19 18:10:54,365 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-19 18:10:54,366 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-19 18:10:54,366 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-19 18:10:54,366 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-19 18:10:54,366 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-19 18:10:54,366 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-19 18:10:54,366 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-19 18:10:54,367 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-19 18:10:54,367 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-19 18:10:54,367 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-19 18:10:54,367 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-19 18:10:54,367 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-19 18:10:54,368 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-19 18:10:54,368 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-19 18:10:54,368 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-19 18:10:54,368 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-19 18:10:54,368 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-19 18:10:54,369 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-19 18:10:54,369 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-19 18:10:54,369 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-19 18:10:54,369 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-19 18:10:54,369 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-19 18:10:54,370 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-19 18:10:54,370 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-19 18:10:54,370 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-19 18:10:54,370 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-19 18:10:54,370 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-19 18:10:54,371 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-19 18:10:54,371 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-19 18:10:54,371 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-19 18:10:54,371 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-19 18:10:54,371 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-19 18:10:54,372 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-19 18:10:54,372 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-19 18:10:54,372 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-19 18:10:54,372 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-19 18:10:54,373 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-19 18:10:54,373 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-19 18:10:54,373 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-19 18:10:54,373 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-19 18:10:54,373 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-19 18:10:54,374 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-19 18:10:54,374 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-19 18:10:54,374 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-19 18:10:54,374 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-19 18:10:54,374 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-19 18:10:54,375 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-19 18:10:54,375 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-19 18:10:54,375 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-19 18:10:54,375 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-19 18:10:54,375 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-19 18:10:54,376 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-19 18:10:54,376 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-19 18:10:54,376 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-19 18:10:54,376 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-19 18:10:54,376 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-19 18:10:54,377 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-19 18:10:54,377 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-19 18:10:54,377 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-19 18:10:54,377 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-19 18:10:54,377 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-19 18:10:54,378 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-19 18:10:54,378 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-19 18:10:54,378 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-19 18:10:54,378 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-19 18:10:54,378 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-19 18:10:54,379 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2020-10-19 18:10:54,379 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2020-10-19 18:10:54,379 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-10-19 18:10:54,379 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-10-19 18:10:54,379 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-19 18:10:54,380 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-19 18:10:54,380 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-19 18:10:54,380 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-19 18:10:54,380 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2020-10-19 18:10:54,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-19 18:10:54,381 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2020-10-19 18:10:54,381 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2020-10-19 18:10:54,381 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2020-10-19 18:10:54,381 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-19 18:10:54,381 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2020-10-19 18:10:54,381 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2020-10-19 18:10:54,382 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2020-10-19 18:10:54,382 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2020-10-19 18:10:54,382 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-10-19 18:10:54,382 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2020-10-19 18:10:54,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-19 18:10:54,383 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2020-10-19 18:10:54,383 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2020-10-19 18:10:54,383 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2020-10-19 18:10:54,383 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2020-10-19 18:10:54,383 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2020-10-19 18:10:54,384 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-19 18:10:54,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-19 18:10:54,384 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2020-10-19 18:10:54,384 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2020-10-19 18:10:54,384 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-10-19 18:10:54,384 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2020-10-19 18:10:54,385 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2020-10-19 18:10:54,385 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2020-10-19 18:10:54,385 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2020-10-19 18:10:54,385 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2020-10-19 18:10:54,385 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2020-10-19 18:10:54,386 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2020-10-19 18:10:54,386 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2020-10-19 18:10:54,386 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2020-10-19 18:10:54,386 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2020-10-19 18:10:54,386 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2020-10-19 18:10:54,387 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-10-19 18:10:54,387 INFO L130 BoogieDeclarations]: Found specification of procedure f [2020-10-19 18:10:54,387 INFO L130 BoogieDeclarations]: Found specification of procedure g [2020-10-19 18:10:54,387 INFO L130 BoogieDeclarations]: Found specification of procedure f6 [2020-10-19 18:10:54,387 INFO L130 BoogieDeclarations]: Found specification of procedure g6 [2020-10-19 18:10:54,388 INFO L130 BoogieDeclarations]: Found specification of procedure probe1_6 [2020-10-19 18:10:54,388 INFO L130 BoogieDeclarations]: Found specification of procedure disconnect_2_6 [2020-10-19 18:10:54,388 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2020-10-19 18:10:54,388 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-19 18:10:54,388 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-19 18:10:54,388 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 18:10:54,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-19 18:10:54,389 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 18:10:54,389 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2020-10-19 18:10:54,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-10-19 18:10:54,389 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-10-19 18:10:54,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2020-10-19 18:10:54,390 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2020-10-19 18:10:55,159 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-19 18:10:55,516 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-19 18:10:55,920 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 18:10:55,920 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-19 18:10:55,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:10:55 BoogieIcfgContainer [2020-10-19 18:10:55,923 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 18:10:55,924 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 18:10:55,925 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 18:10:55,928 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 18:10:55,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 06:10:53" (1/3) ... [2020-10-19 18:10:55,930 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36ce5e72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 06:10:55, skipping insertion in model container [2020-10-19 18:10:55,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:10:54" (2/3) ... [2020-10-19 18:10:55,930 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36ce5e72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 06:10:55, skipping insertion in model container [2020-10-19 18:10:55,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:10:55" (3/3) ... [2020-10-19 18:10:55,933 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test6_3.i [2020-10-19 18:10:55,945 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 18:10:55,953 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 78 error locations. [2020-10-19 18:10:55,968 INFO L253 AbstractCegarLoop]: Starting to check reachability of 78 error locations. [2020-10-19 18:10:55,990 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 18:10:55,990 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-19 18:10:55,991 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 18:10:55,991 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 18:10:55,991 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 18:10:55,992 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 18:10:55,992 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 18:10:55,992 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 18:10:56,011 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states. [2020-10-19 18:10:56,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-19 18:10:56,022 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:10:56,023 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:10:56,024 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe1_6Err1REQUIRES_VIOLATION, probe1_6Err0REQUIRES_VIOLATION, probe1_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err4ASSERT_VIOLATIONMEMORY_FREE]=== [2020-10-19 18:10:56,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:10:56,031 INFO L82 PathProgramCache]: Analyzing trace with hash 24886788, now seen corresponding path program 1 times [2020-10-19 18:10:56,044 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:10:56,045 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1087322441] [2020-10-19 18:10:56,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-10-19 18:10:56,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:10:56,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-19 18:10:56,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:10:56,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:10:56,329 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:10:56,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:10:56,425 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1087322441] [2020-10-19 18:10:56,426 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:10:56,426 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2020-10-19 18:10:56,427 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735683934] [2020-10-19 18:10:56,432 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-19 18:10:56,433 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:10:56,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-19 18:10:56,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:10:56,455 INFO L87 Difference]: Start difference. First operand 125 states. Second operand 5 states. [2020-10-19 18:10:56,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:10:56,527 INFO L93 Difference]: Finished difference Result 76 states and 85 transitions. [2020-10-19 18:10:56,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-19 18:10:56,530 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2020-10-19 18:10:56,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:10:56,542 INFO L225 Difference]: With dead ends: 76 [2020-10-19 18:10:56,543 INFO L226 Difference]: Without dead ends: 73 [2020-10-19 18:10:56,545 INFO L677 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 [2020-10-19 18:10:56,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-10-19 18:10:56,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 56. [2020-10-19 18:10:56,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-10-19 18:10:56,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 60 transitions. [2020-10-19 18:10:56,596 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 60 transitions. Word has length 20 [2020-10-19 18:10:56,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:10:56,597 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 60 transitions. [2020-10-19 18:10:56,597 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-19 18:10:56,597 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 60 transitions. [2020-10-19 18:10:56,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-19 18:10:56,598 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:10:56,599 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:10:56,812 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-19 18:10:56,815 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe1_6Err1REQUIRES_VIOLATION, probe1_6Err0REQUIRES_VIOLATION, probe1_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err4ASSERT_VIOLATIONMEMORY_FREE]=== [2020-10-19 18:10:56,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:10:56,815 INFO L82 PathProgramCache]: Analyzing trace with hash -171626717, now seen corresponding path program 1 times [2020-10-19 18:10:56,816 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:10:56,817 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1580863521] [2020-10-19 18:10:56,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-10-19 18:10:56,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:10:57,001 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-19 18:10:57,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:10:57,087 INFO L350 Elim1Store]: treesize reduction 27, result has 50.9 percent of original size [2020-10-19 18:10:57,088 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 33 [2020-10-19 18:10:57,089 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:10:57,119 INFO L625 ElimStorePlain]: treesize reduction 10, result has 69.7 percent of original size [2020-10-19 18:10:57,125 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-10-19 18:10:57,130 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-19 18:10:57,131 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:23 [2020-10-19 18:10:57,133 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-10-19 18:10:57,166 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2020-10-19 18:10:57,167 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:10:57,170 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:10:57,170 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:10:57,170 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:3 [2020-10-19 18:10:57,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:10:57,182 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:10:57,261 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-19 18:10:57,280 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2020-10-19 18:10:57,282 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1580863521] [2020-10-19 18:10:57,285 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 1) [2020-10-19 18:10:57,285 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2080787587] [2020-10-19 18:10:57,285 INFO L95 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 [2020-10-19 18:10:57,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:10:57,612 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-19 18:10:57,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:10:57,688 INFO L350 Elim1Store]: treesize reduction 27, result has 50.9 percent of original size [2020-10-19 18:10:57,689 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 33 [2020-10-19 18:10:57,689 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:10:57,719 INFO L625 ElimStorePlain]: treesize reduction 10, result has 69.7 percent of original size [2020-10-19 18:10:57,721 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-10-19 18:10:57,723 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-19 18:10:57,724 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:23 [2020-10-19 18:10:57,725 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-10-19 18:10:57,743 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2020-10-19 18:10:57,745 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:10:57,747 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:10:57,748 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:10:57,748 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:3 [2020-10-19 18:10:57,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:10:57,761 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:10:57,818 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-19 18:10:57,826 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2020-10-19 18:10:57,828 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:10:57,834 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:10:57,834 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:10:57,834 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:24, output treesize:16 [2020-10-19 18:10:57,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:10:57,853 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:10:57,854 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-19 18:10:57,854 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592213841] [2020-10-19 18:10:57,855 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-19 18:10:57,856 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:10:57,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-19 18:10:57,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:10:57,858 INFO L87 Difference]: Start difference. First operand 56 states and 60 transitions. Second operand 5 states. [2020-10-19 18:10:58,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:10:58,032 INFO L93 Difference]: Finished difference Result 92 states and 102 transitions. [2020-10-19 18:10:58,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-19 18:10:58,033 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2020-10-19 18:10:58,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:10:58,035 INFO L225 Difference]: With dead ends: 92 [2020-10-19 18:10:58,035 INFO L226 Difference]: Without dead ends: 89 [2020-10-19 18:10:58,036 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-10-19 18:10:58,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-10-19 18:10:58,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 79. [2020-10-19 18:10:58,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-10-19 18:10:58,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 93 transitions. [2020-10-19 18:10:58,048 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 93 transitions. Word has length 20 [2020-10-19 18:10:58,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:10:58,049 INFO L481 AbstractCegarLoop]: Abstraction has 79 states and 93 transitions. [2020-10-19 18:10:58,049 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-19 18:10:58,049 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 93 transitions. [2020-10-19 18:10:58,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-19 18:10:58,051 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:10:58,051 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:10:58,455 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk,3 mathsat -unsat_core_generation=3 [2020-10-19 18:10:58,459 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe1_6Err1REQUIRES_VIOLATION, probe1_6Err0REQUIRES_VIOLATION, probe1_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err4ASSERT_VIOLATIONMEMORY_FREE]=== [2020-10-19 18:10:58,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:10:58,460 INFO L82 PathProgramCache]: Analyzing trace with hash -171626716, now seen corresponding path program 1 times [2020-10-19 18:10:58,460 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:10:58,460 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [244218994] [2020-10-19 18:10:58,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-10-19 18:10:58,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:10:58,587 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-19 18:10:58,589 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:10:58,617 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:10:58,617 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 25 [2020-10-19 18:10:58,618 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:10:58,645 INFO L625 ElimStorePlain]: treesize reduction 10, result has 64.3 percent of original size [2020-10-19 18:10:58,647 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:10:58,647 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:13, output treesize:9 [2020-10-19 18:10:58,674 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2020-10-19 18:10:58,675 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:10:58,681 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:10:58,682 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:10:58,682 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:14, output treesize:7 [2020-10-19 18:10:58,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:10:58,703 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:10:58,859 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-10-19 18:10:58,868 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2020-10-19 18:10:58,869 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-19 18:10:58,897 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:10:58,898 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-19 18:10:58,898 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:30, output treesize:28 [2020-10-19 18:10:58,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:10:58,980 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [244218994] [2020-10-19 18:10:58,980 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:10:58,981 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-10-19 18:10:58,981 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686827750] [2020-10-19 18:10:58,981 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-19 18:10:58,982 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:10:58,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-19 18:10:58,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-19 18:10:58,983 INFO L87 Difference]: Start difference. First operand 79 states and 93 transitions. Second operand 6 states. [2020-10-19 18:10:59,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:10:59,191 INFO L93 Difference]: Finished difference Result 110 states and 118 transitions. [2020-10-19 18:10:59,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-19 18:10:59,192 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2020-10-19 18:10:59,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:10:59,194 INFO L225 Difference]: With dead ends: 110 [2020-10-19 18:10:59,194 INFO L226 Difference]: Without dead ends: 100 [2020-10-19 18:10:59,194 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 31 SyntacticMatches, 4 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-10-19 18:10:59,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2020-10-19 18:10:59,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 90. [2020-10-19 18:10:59,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-10-19 18:10:59,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 103 transitions. [2020-10-19 18:10:59,205 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 103 transitions. Word has length 20 [2020-10-19 18:10:59,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:10:59,206 INFO L481 AbstractCegarLoop]: Abstraction has 90 states and 103 transitions. [2020-10-19 18:10:59,206 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-19 18:10:59,206 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 103 transitions. [2020-10-19 18:10:59,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-19 18:10:59,207 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:10:59,207 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:10:59,419 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-10-19 18:10:59,421 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe1_6Err1REQUIRES_VIOLATION, probe1_6Err0REQUIRES_VIOLATION, probe1_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err4ASSERT_VIOLATIONMEMORY_FREE]=== [2020-10-19 18:10:59,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:10:59,422 INFO L82 PathProgramCache]: Analyzing trace with hash 2076107592, now seen corresponding path program 1 times [2020-10-19 18:10:59,423 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:10:59,423 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1434697247] [2020-10-19 18:10:59,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-10-19 18:10:59,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:10:59,545 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-19 18:10:59,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:10:59,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:10:59,568 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:10:59,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:10:59,614 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1434697247] [2020-10-19 18:10:59,615 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:10:59,615 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2020-10-19 18:10:59,615 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170775795] [2020-10-19 18:10:59,616 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-19 18:10:59,616 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:10:59,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-19 18:10:59,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:10:59,616 INFO L87 Difference]: Start difference. First operand 90 states and 103 transitions. Second operand 5 states. [2020-10-19 18:10:59,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:10:59,641 INFO L93 Difference]: Finished difference Result 89 states and 101 transitions. [2020-10-19 18:10:59,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-19 18:10:59,642 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2020-10-19 18:10:59,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:10:59,644 INFO L225 Difference]: With dead ends: 89 [2020-10-19 18:10:59,644 INFO L226 Difference]: Without dead ends: 89 [2020-10-19 18:10:59,645 INFO L677 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 [2020-10-19 18:10:59,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-10-19 18:10:59,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2020-10-19 18:10:59,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2020-10-19 18:10:59,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 101 transitions. [2020-10-19 18:10:59,653 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 101 transitions. Word has length 22 [2020-10-19 18:10:59,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:10:59,654 INFO L481 AbstractCegarLoop]: Abstraction has 89 states and 101 transitions. [2020-10-19 18:10:59,654 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-19 18:10:59,654 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 101 transitions. [2020-10-19 18:10:59,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-19 18:10:59,655 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:10:59,655 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:10:59,868 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-10-19 18:10:59,870 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe1_6Err1REQUIRES_VIOLATION, probe1_6Err0REQUIRES_VIOLATION, probe1_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err4ASSERT_VIOLATIONMEMORY_FREE]=== [2020-10-19 18:10:59,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:10:59,870 INFO L82 PathProgramCache]: Analyzing trace with hash -65173633, now seen corresponding path program 1 times [2020-10-19 18:10:59,871 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:10:59,872 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1669796880] [2020-10-19 18:10:59,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-10-19 18:10:59,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:10:59,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-19 18:10:59,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:11:00,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:11:00,103 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:11:00,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:11:00,230 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1669796880] [2020-10-19 18:11:00,231 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:11:00,231 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 4] imperfect sequences [] total 9 [2020-10-19 18:11:00,231 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312318898] [2020-10-19 18:11:00,231 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-19 18:11:00,232 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:11:00,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-19 18:11:00,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-19 18:11:00,232 INFO L87 Difference]: Start difference. First operand 89 states and 101 transitions. Second operand 10 states. [2020-10-19 18:11:00,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:11:00,451 INFO L93 Difference]: Finished difference Result 95 states and 102 transitions. [2020-10-19 18:11:00,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-19 18:11:00,451 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 23 [2020-10-19 18:11:00,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:11:00,452 INFO L225 Difference]: With dead ends: 95 [2020-10-19 18:11:00,452 INFO L226 Difference]: Without dead ends: 95 [2020-10-19 18:11:00,453 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-19 18:11:00,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2020-10-19 18:11:00,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 88. [2020-10-19 18:11:00,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2020-10-19 18:11:00,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 99 transitions. [2020-10-19 18:11:00,466 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 99 transitions. Word has length 23 [2020-10-19 18:11:00,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:11:00,467 INFO L481 AbstractCegarLoop]: Abstraction has 88 states and 99 transitions. [2020-10-19 18:11:00,467 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-19 18:11:00,467 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 99 transitions. [2020-10-19 18:11:00,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-19 18:11:00,469 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:11:00,469 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:11:00,669 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-10-19 18:11:00,671 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe1_6Err1REQUIRES_VIOLATION, probe1_6Err0REQUIRES_VIOLATION, probe1_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err4ASSERT_VIOLATIONMEMORY_FREE]=== [2020-10-19 18:11:00,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:11:00,672 INFO L82 PathProgramCache]: Analyzing trace with hash -2020382166, now seen corresponding path program 1 times [2020-10-19 18:11:00,672 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:11:00,673 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1546089353] [2020-10-19 18:11:00,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2020-10-19 18:11:00,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:11:00,825 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-19 18:11:00,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:11:00,835 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-10-19 18:11:00,835 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:11:00,837 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:11:00,837 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:11:00,838 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-10-19 18:11:00,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:11:00,896 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:11:00,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:11:00,958 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1546089353] [2020-10-19 18:11:00,958 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:11:00,958 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 5 [2020-10-19 18:11:00,959 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902407558] [2020-10-19 18:11:00,959 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-19 18:11:00,959 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:11:00,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-19 18:11:00,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-19 18:11:00,963 INFO L87 Difference]: Start difference. First operand 88 states and 99 transitions. Second operand 6 states. [2020-10-19 18:11:01,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:11:01,118 INFO L93 Difference]: Finished difference Result 91 states and 98 transitions. [2020-10-19 18:11:01,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-19 18:11:01,119 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2020-10-19 18:11:01,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:11:01,120 INFO L225 Difference]: With dead ends: 91 [2020-10-19 18:11:01,120 INFO L226 Difference]: Without dead ends: 91 [2020-10-19 18:11:01,121 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 40 SyntacticMatches, 3 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-19 18:11:01,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2020-10-19 18:11:01,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 88. [2020-10-19 18:11:01,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2020-10-19 18:11:01,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 98 transitions. [2020-10-19 18:11:01,128 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 98 transitions. Word has length 24 [2020-10-19 18:11:01,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:11:01,129 INFO L481 AbstractCegarLoop]: Abstraction has 88 states and 98 transitions. [2020-10-19 18:11:01,129 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-19 18:11:01,129 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 98 transitions. [2020-10-19 18:11:01,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-19 18:11:01,130 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:11:01,130 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:11:01,342 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-10-19 18:11:01,344 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe1_6Err1REQUIRES_VIOLATION, probe1_6Err0REQUIRES_VIOLATION, probe1_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err4ASSERT_VIOLATIONMEMORY_FREE]=== [2020-10-19 18:11:01,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:11:01,345 INFO L82 PathProgramCache]: Analyzing trace with hash 1769026505, now seen corresponding path program 1 times [2020-10-19 18:11:01,345 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:11:01,346 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1055884861] [2020-10-19 18:11:01,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2020-10-19 18:11:01,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:11:01,491 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-19 18:11:01,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:11:01,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:11:01,527 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:11:01,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:11:01,571 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1055884861] [2020-10-19 18:11:01,571 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:11:01,571 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2020-10-19 18:11:01,572 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430460338] [2020-10-19 18:11:01,572 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-19 18:11:01,572 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:11:01,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-19 18:11:01,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:11:01,573 INFO L87 Difference]: Start difference. First operand 88 states and 98 transitions. Second operand 5 states. [2020-10-19 18:11:01,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:11:01,592 INFO L93 Difference]: Finished difference Result 62 states and 66 transitions. [2020-10-19 18:11:01,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-19 18:11:01,593 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2020-10-19 18:11:01,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:11:01,594 INFO L225 Difference]: With dead ends: 62 [2020-10-19 18:11:01,594 INFO L226 Difference]: Without dead ends: 58 [2020-10-19 18:11:01,595 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:11:01,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-10-19 18:11:01,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2020-10-19 18:11:01,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-10-19 18:11:01,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 62 transitions. [2020-10-19 18:11:01,599 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 62 transitions. Word has length 24 [2020-10-19 18:11:01,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:11:01,599 INFO L481 AbstractCegarLoop]: Abstraction has 58 states and 62 transitions. [2020-10-19 18:11:01,599 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-19 18:11:01,600 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 62 transitions. [2020-10-19 18:11:01,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-19 18:11:01,600 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:11:01,601 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:11:01,807 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2020-10-19 18:11:01,808 INFO L429 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_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe1_6Err1REQUIRES_VIOLATION, probe1_6Err0REQUIRES_VIOLATION, probe1_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err4ASSERT_VIOLATIONMEMORY_FREE]=== [2020-10-19 18:11:01,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:11:01,808 INFO L82 PathProgramCache]: Analyzing trace with hash -292940866, now seen corresponding path program 1 times [2020-10-19 18:11:01,808 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:11:01,809 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1176856964] [2020-10-19 18:11:01,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2020-10-19 18:11:01,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:11:01,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 13 conjunts are in the unsatisfiable core [2020-10-19 18:11:01,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:11:01,981 INFO L350 Elim1Store]: treesize reduction 27, result has 50.9 percent of original size [2020-10-19 18:11:01,981 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 33 [2020-10-19 18:11:01,982 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:11:02,005 INFO L625 ElimStorePlain]: treesize reduction 10, result has 69.7 percent of original size [2020-10-19 18:11:02,007 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-10-19 18:11:02,008 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-19 18:11:02,008 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:23 [2020-10-19 18:11:02,009 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-10-19 18:11:02,082 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:11:02,083 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 30 [2020-10-19 18:11:02,084 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1176856964] [2020-10-19 18:11:02,085 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 1) [2020-10-19 18:11:02,085 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [833489807] [2020-10-19 18:11:02,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-19 18:11:02,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:11:02,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 15 conjunts are in the unsatisfiable core [2020-10-19 18:11:02,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:11:02,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-19 18:11:02,391 INFO L350 Elim1Store]: treesize reduction 24, result has 38.5 percent of original size [2020-10-19 18:11:02,392 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 20 [2020-10-19 18:11:02,392 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:11:02,406 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:11:02,408 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-19 18:11:02,409 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-19 18:11:02,409 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:16, output treesize:23 [2020-10-19 18:11:02,411 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-19 18:11:02,511 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2020-10-19 18:11:02,512 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:11:02,519 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:11:02,519 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-19 18:11:02,520 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:14, output treesize:7 [2020-10-19 18:11:02,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-19 18:11:02,662 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2020-10-19 18:11:02,663 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:11:02,681 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:11:02,684 INFO L545 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-10-19 18:11:02,684 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:23, output treesize:20 [2020-10-19 18:11:07,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:11:07,257 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:11:10,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:11:10,023 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:11:10,023 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 7] imperfect sequences [] total 14 [2020-10-19 18:11:10,025 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199109898] [2020-10-19 18:11:10,025 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-19 18:11:10,025 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:11:10,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-19 18:11:10,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=286, Unknown=1, NotChecked=0, Total=342 [2020-10-19 18:11:10,026 INFO L87 Difference]: Start difference. First operand 58 states and 62 transitions. Second operand 15 states. [2020-10-19 18:11:26,576 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 17 [2020-10-19 18:11:28,099 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 26 [2020-10-19 18:11:32,241 WARN L193 SmtUtils]: Spent 4.08 s on a formula simplification. DAG size of input: 31 DAG size of output: 30 [2020-10-19 18:11:36,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:11:36,588 INFO L93 Difference]: Finished difference Result 62 states and 64 transitions. [2020-10-19 18:11:36,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-19 18:11:36,589 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 28 [2020-10-19 18:11:36,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:11:36,590 INFO L225 Difference]: With dead ends: 62 [2020-10-19 18:11:36,590 INFO L226 Difference]: Without dead ends: 62 [2020-10-19 18:11:36,591 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 49 SyntacticMatches, 3 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 19.1s TimeCoverageRelationStatistics Valid=136, Invalid=460, Unknown=4, NotChecked=0, Total=600 [2020-10-19 18:11:36,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-10-19 18:11:36,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 57. [2020-10-19 18:11:36,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-10-19 18:11:36,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 61 transitions. [2020-10-19 18:11:36,595 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 61 transitions. Word has length 28 [2020-10-19 18:11:36,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:11:36,596 INFO L481 AbstractCegarLoop]: Abstraction has 57 states and 61 transitions. [2020-10-19 18:11:36,596 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-19 18:11:36,596 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 61 transitions. [2020-10-19 18:11:36,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-19 18:11:36,597 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:11:36,597 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:11:37,001 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3,11 cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-19 18:11:37,003 INFO L429 AbstractCegarLoop]: === Iteration 9 === [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_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe1_6Err1REQUIRES_VIOLATION, probe1_6Err0REQUIRES_VIOLATION, probe1_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err4ASSERT_VIOLATIONMEMORY_FREE]=== [2020-10-19 18:11:37,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:11:37,004 INFO L82 PathProgramCache]: Analyzing trace with hash -292940865, now seen corresponding path program 1 times [2020-10-19 18:11:37,004 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:11:37,005 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [621997625] [2020-10-19 18:11:37,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2020-10-19 18:11:37,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:11:37,125 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 18 conjunts are in the unsatisfiable core [2020-10-19 18:11:37,127 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:11:37,148 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:11:37,148 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 25 [2020-10-19 18:11:37,149 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:11:37,173 INFO L625 ElimStorePlain]: treesize reduction 10, result has 64.3 percent of original size [2020-10-19 18:11:37,175 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:11:37,175 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:13, output treesize:9 [2020-10-19 18:11:37,304 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:11:37,305 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 30 [2020-10-19 18:11:37,306 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-19 18:11:37,307 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [621997625] [2020-10-19 18:11:37,307 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-19 18:11:37,307 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1845228185] [2020-10-19 18:11:37,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-19 18:11:37,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:11:37,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 18 conjunts are in the unsatisfiable core [2020-10-19 18:11:37,588 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:11:37,609 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:11:37,610 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 25 [2020-10-19 18:11:37,611 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:11:37,645 INFO L625 ElimStorePlain]: treesize reduction 10, result has 67.7 percent of original size [2020-10-19 18:11:37,648 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:11:37,649 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:16, output treesize:12 [2020-10-19 18:11:37,803 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2020-10-19 18:11:37,805 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:11:37,811 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:11:37,812 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-19 18:11:37,812 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:14, output treesize:7 [2020-10-19 18:11:38,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-19 18:11:38,050 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2020-10-19 18:11:38,051 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:11:38,072 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:11:38,074 INFO L545 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-10-19 18:11:38,075 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:26, output treesize:20 [2020-10-19 18:11:38,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:11:38,629 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:11:38,776 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-19 18:11:38,952 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-19 18:11:38,954 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-19 18:11:38,955 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-19 18:11:38,957 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-19 18:11:38,958 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-19 18:11:41,613 WARN L193 SmtUtils]: Spent 2.12 s on a formula simplification. DAG size of input: 32 DAG size of output: 26 [2020-10-19 18:11:41,624 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-19 18:11:52,133 WARN L193 SmtUtils]: Spent 2.07 s on a formula simplification. DAG size of input: 33 DAG size of output: 27 [2020-10-19 18:11:52,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:11:52,644 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:11:52,644 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 7] imperfect sequences [] total 14 [2020-10-19 18:11:52,644 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765137336] [2020-10-19 18:11:52,646 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-19 18:11:52,646 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:11:52,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-19 18:11:52,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=359, Unknown=4, NotChecked=0, Total=420 [2020-10-19 18:11:52,647 INFO L87 Difference]: Start difference. First operand 57 states and 61 transitions. Second operand 15 states. [2020-10-19 18:11:55,796 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 34 [2020-10-19 18:11:56,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:11:56,726 INFO L93 Difference]: Finished difference Result 55 states and 58 transitions. [2020-10-19 18:11:56,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-19 18:11:56,727 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 28 [2020-10-19 18:11:56,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:11:56,727 INFO L225 Difference]: With dead ends: 55 [2020-10-19 18:11:56,728 INFO L226 Difference]: Without dead ends: 55 [2020-10-19 18:11:56,728 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 42 SyntacticMatches, 7 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 15.4s TimeCoverageRelationStatistics Valid=134, Invalid=564, Unknown=4, NotChecked=0, Total=702 [2020-10-19 18:11:56,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-10-19 18:11:56,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2020-10-19 18:11:56,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-10-19 18:11:56,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 58 transitions. [2020-10-19 18:11:56,731 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 58 transitions. Word has length 28 [2020-10-19 18:11:56,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:11:56,731 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 58 transitions. [2020-10-19 18:11:56,731 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-19 18:11:56,732 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 58 transitions. [2020-10-19 18:11:56,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-19 18:11:56,732 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:11:56,733 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:11:57,137 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 cvc4 --incremental --print-success --lang smt --rewrite-divk,12 mathsat -unsat_core_generation=3 [2020-10-19 18:11:57,139 INFO L429 AbstractCegarLoop]: === Iteration 10 === [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_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe1_6Err1REQUIRES_VIOLATION, probe1_6Err0REQUIRES_VIOLATION, probe1_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err4ASSERT_VIOLATIONMEMORY_FREE]=== [2020-10-19 18:11:57,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:11:57,139 INFO L82 PathProgramCache]: Analyzing trace with hash 2144040275, now seen corresponding path program 1 times [2020-10-19 18:11:57,139 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:11:57,140 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1015026137] [2020-10-19 18:11:57,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 14 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with mathsat -unsat_core_generation=3 [2020-10-19 18:11:57,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:11:57,270 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 16 conjunts are in the unsatisfiable core [2020-10-19 18:11:57,271 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:11:57,323 INFO L350 Elim1Store]: treesize reduction 27, result has 50.9 percent of original size [2020-10-19 18:11:57,323 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 33 [2020-10-19 18:11:57,324 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:11:57,346 INFO L625 ElimStorePlain]: treesize reduction 10, result has 69.7 percent of original size [2020-10-19 18:11:57,347 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-10-19 18:11:57,348 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-19 18:11:57,349 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:23 [2020-10-19 18:11:57,349 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-10-19 18:11:57,364 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2020-10-19 18:11:57,365 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1015026137] [2020-10-19 18:11:57,365 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 1) [2020-10-19 18:11:57,365 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1708708092] [2020-10-19 18:11:57,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 15 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-19 18:11:57,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:11:57,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 20 conjunts are in the unsatisfiable core [2020-10-19 18:11:57,619 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:11:57,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-19 18:11:57,650 INFO L350 Elim1Store]: treesize reduction 24, result has 38.5 percent of original size [2020-10-19 18:11:57,651 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 20 [2020-10-19 18:11:57,651 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:11:57,667 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:11:57,668 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-19 18:11:57,669 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-19 18:11:57,669 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:16, output treesize:23 [2020-10-19 18:11:57,669 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-19 18:11:57,700 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2020-10-19 18:11:57,703 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:11:57,718 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:11:57,719 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:11:57,719 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:14, output treesize:7 [2020-10-19 18:11:57,857 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-19 18:11:57,857 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2123893109] [2020-10-19 18:11:57,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:11:57,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:11:57,975 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 16 conjunts are in the unsatisfiable core [2020-10-19 18:11:57,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:11:58,018 INFO L350 Elim1Store]: treesize reduction 27, result has 50.9 percent of original size [2020-10-19 18:11:58,019 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 33 [2020-10-19 18:11:58,019 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:11:58,042 INFO L625 ElimStorePlain]: treesize reduction 10, result has 69.7 percent of original size [2020-10-19 18:11:58,043 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-10-19 18:11:58,044 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-19 18:11:58,044 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:23 [2020-10-19 18:11:58,044 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-10-19 18:11:58,055 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2020-10-19 18:11:58,055 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 1) [2020-10-19 18:11:58,056 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:11:58,056 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2020-10-19 18:11:58,056 ERROR L205 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2020-10-19 18:11:58,056 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-19 18:11:58,668 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,14 mathsat -unsat_core_generation=3,15 cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-19 18:11:58,682 WARN L238 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-10-19 18:11:58,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 06:11:58 BoogieIcfgContainer [2020-10-19 18:11:58,682 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 18:11:58,683 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 18:11:58,683 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 18:11:58,683 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 18:11:58,684 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:10:55" (3/4) ... [2020-10-19 18:11:58,687 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-19 18:11:58,687 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 18:11:58,689 INFO L168 Benchmark]: Toolchain (without parser) took 65429.23 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 323.5 MB). Free memory was 953.2 MB in the beginning and 1.0 GB in the end (delta: -60.1 MB). Peak memory consumption was 263.4 MB. Max. memory is 11.5 GB. [2020-10-19 18:11:58,689 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:11:58,690 INFO L168 Benchmark]: CACSL2BoogieTranslator took 893.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 953.2 MB in the beginning and 1.1 GB in the end (delta: -147.0 MB). Peak memory consumption was 26.6 MB. Max. memory is 11.5 GB. [2020-10-19 18:11:58,690 INFO L168 Benchmark]: Boogie Preprocessor took 110.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2020-10-19 18:11:58,690 INFO L168 Benchmark]: RCFGBuilder took 1651.74 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 975.8 MB in the end (delta: 117.9 MB). Peak memory consumption was 117.9 MB. Max. memory is 11.5 GB. [2020-10-19 18:11:58,691 INFO L168 Benchmark]: TraceAbstraction took 62758.27 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 184.0 MB). Free memory was 975.8 MB in the beginning and 1.0 GB in the end (delta: -37.5 MB). Peak memory consumption was 146.5 MB. Max. memory is 11.5 GB. [2020-10-19 18:11:58,691 INFO L168 Benchmark]: Witness Printer took 4.36 ms. Allocated memory is still 1.4 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:11:58,693 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 893.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 953.2 MB in the beginning and 1.1 GB in the end (delta: -147.0 MB). Peak memory consumption was 26.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 110.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1651.74 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 975.8 MB in the end (delta: 117.9 MB). Peak memory consumption was 117.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 62758.27 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 184.0 MB). Free memory was 975.8 MB in the beginning and 1.0 GB in the end (delta: -37.5 MB). Peak memory consumption was 146.5 MB. Max. memory is 11.5 GB. * Witness Printer took 4.36 ms. Allocated memory is still 1.4 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 788]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L782] struct A a6; [L791] CALL entry_point() [L784] CALL, EXPR probe1_6(&a6) [L764] int ret = - -3; [L765] CALL, EXPR ldv_malloc(sizeof(int)) [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L765] RET, EXPR ldv_malloc(sizeof(int)) [L765] int *p = (int *)ldv_malloc(sizeof(int)); [L766] COND FALSE !(p==0) [L768] CALL, EXPR f6() [L758] return __VERIFIER_nondet_int(); [L768] RET, EXPR f6() [L768] ret = f6() [L769] COND TRUE ret<0 [L777] free(p) [L777] free(p) [L777] free(p) [L778] return ret; [L784] RET, EXPR probe1_6(&a6) [L784] int ret = probe1_6(&a6); [L785] COND FALSE !(ret==0) [L788] a6.p = 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 51 procedures, 365 locations, 78 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 62.6s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 31.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 468 SDtfs, 682 SDslu, 949 SDs, 0 SdLazy, 713 SolverSat, 196 SolverUnsat, 7 SolverUnknown, 0 SolverNotchecked, 18.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 478 GetRequests, 382 SyntacticMatches, 18 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 35.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=125occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 52 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 24.0s InterpolantComputationTime, 209 NumberOfCodeBlocks, 209 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 400 ConstructedInterpolants, 66 QuantifiedInterpolants, 73554 SizeOfPredicates, 40 NumberOfNonLiveVariables, 989 ConjunctsInSsa, 83 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...