./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test8.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 20ed64ec Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/memleaks_test8.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 ea76204732189107ea57f186f34feef6f7f76c1e ................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/memleaks_test8.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 ea76204732189107ea57f186f34feef6f7f76c1e ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 06:25:47,157 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 06:25:47,158 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 06:25:47,186 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 06:25:47,186 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 06:25:47,189 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 06:25:47,190 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 06:25:47,195 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 06:25:47,196 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 06:25:47,200 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 06:25:47,201 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 06:25:47,202 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 06:25:47,202 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 06:25:47,204 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 06:25:47,205 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 06:25:47,206 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 06:25:47,209 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 06:25:47,210 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 06:25:47,210 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 06:25:47,212 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 06:25:47,215 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 06:25:47,216 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 06:25:47,217 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 06:25:47,218 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 06:25:47,221 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 06:25:47,222 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 06:25:47,222 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 06:25:47,223 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 06:25:47,224 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 06:25:47,224 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 06:25:47,225 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 06:25:47,225 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 06:25:47,226 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 06:25:47,227 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 06:25:47,228 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 06:25:47,228 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 06:25:47,228 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 06:25:47,229 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 06:25:47,229 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 06:25:47,230 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 06:25:47,230 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 06:25:47,233 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-08-27 06:25:47,270 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 06:25:47,270 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 06:25:47,271 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 06:25:47,271 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 06:25:47,273 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 06:25:47,273 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 06:25:47,273 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 06:25:47,273 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 06:25:47,273 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 06:25:47,273 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 06:25:47,274 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 06:25:47,274 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 06:25:47,274 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 06:25:47,275 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-27 06:25:47,275 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-27 06:25:47,275 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-08-27 06:25:47,275 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-27 06:25:47,275 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-27 06:25:47,275 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 06:25:47,286 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 06:25:47,287 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 06:25:47,287 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 06:25:47,287 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-27 06:25:47,287 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 06:25:47,287 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 06:25:47,287 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-27 06:25:47,288 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 06:25:47,288 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-27 06:25:47,288 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 06:25:47,288 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ea76204732189107ea57f186f34feef6f7f76c1e [2021-08-27 06:25:47,503 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 06:25:47,521 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 06:25:47,523 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 06:25:47,524 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 06:25:47,525 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 06:25:47,526 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test8.i [2021-08-27 06:25:47,565 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e9b51a20/266db5ee6d9c4e8a9f2d8ab30f41ac02/FLAGd61e2c7cf [2021-08-27 06:25:47,977 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 06:25:47,978 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test8.i [2021-08-27 06:25:47,990 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e9b51a20/266db5ee6d9c4e8a9f2d8ab30f41ac02/FLAGd61e2c7cf [2021-08-27 06:25:48,334 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e9b51a20/266db5ee6d9c4e8a9f2d8ab30f41ac02 [2021-08-27 06:25:48,337 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 06:25:48,339 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-27 06:25:48,341 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 06:25:48,342 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 06:25:48,344 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 06:25:48,345 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:25:48" (1/1) ... [2021-08-27 06:25:48,346 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@dbaa2c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:25:48, skipping insertion in model container [2021-08-27 06:25:48,346 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:25:48" (1/1) ... [2021-08-27 06:25:48,350 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 06:25:48,392 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 06:25:48,704 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:25:48,725 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-08-27 06:25:48,725 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1f0e1e3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:25:48, skipping insertion in model container [2021-08-27 06:25:48,726 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 06:25:48,726 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-08-27 06:25:48,728 INFO L168 Benchmark]: Toolchain (without parser) took 388.52 ms. Allocated memory was 52.4 MB in the beginning and 71.3 MB in the end (delta: 18.9 MB). Free memory was 28.3 MB in the beginning and 52.4 MB in the end (delta: -24.1 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. [2021-08-27 06:25:48,730 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 52.4 MB. Free memory was 34.7 MB in the beginning and 34.7 MB in the end (delta: 62.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 06:25:48,731 INFO L168 Benchmark]: CACSL2BoogieTranslator took 385.01 ms. Allocated memory was 52.4 MB in the beginning and 71.3 MB in the end (delta: 18.9 MB). Free memory was 28.1 MB in the beginning and 52.4 MB in the end (delta: -24.3 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. [2021-08-27 06:25:48,732 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 52.4 MB. Free memory was 34.7 MB in the beginning and 34.7 MB in the end (delta: 62.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 385.01 ms. Allocated memory was 52.4 MB in the beginning and 71.3 MB in the end (delta: 18.9 MB). Free memory was 28.1 MB in the beginning and 52.4 MB in the end (delta: -24.3 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 06:25:50,105 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 06:25:50,107 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 06:25:50,137 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 06:25:50,138 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 06:25:50,140 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 06:25:50,141 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 06:25:50,145 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 06:25:50,146 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 06:25:50,153 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 06:25:50,153 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 06:25:50,154 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 06:25:50,154 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 06:25:50,155 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 06:25:50,156 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 06:25:50,156 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 06:25:50,157 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 06:25:50,157 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 06:25:50,158 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 06:25:50,159 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 06:25:50,160 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 06:25:50,160 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 06:25:50,161 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 06:25:50,161 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 06:25:50,167 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 06:25:50,167 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 06:25:50,167 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 06:25:50,168 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 06:25:50,168 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 06:25:50,169 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 06:25:50,169 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 06:25:50,169 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 06:25:50,170 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 06:25:50,193 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 06:25:50,194 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 06:25:50,194 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 06:25:50,195 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 06:25:50,195 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 06:25:50,195 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 06:25:50,195 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 06:25:50,196 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 06:25:50,199 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-08-27 06:25:50,227 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 06:25:50,228 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 06:25:50,228 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 06:25:50,229 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 06:25:50,230 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 06:25:50,230 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 06:25:50,230 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 06:25:50,230 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 06:25:50,230 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 06:25:50,230 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 06:25:50,231 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 06:25:50,231 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 06:25:50,231 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 06:25:50,231 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-27 06:25:50,231 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-27 06:25:50,231 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-08-27 06:25:50,232 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-27 06:25:50,232 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-27 06:25:50,232 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-27 06:25:50,232 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-27 06:25:50,232 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 06:25:50,232 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 06:25:50,232 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 06:25:50,232 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 06:25:50,232 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-27 06:25:50,232 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 06:25:50,232 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 06:25:50,232 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-27 06:25:50,233 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-27 06:25:50,233 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-27 06:25:50,233 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 06:25:50,233 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-27 06:25:50,233 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ea76204732189107ea57f186f34feef6f7f76c1e [2021-08-27 06:25:50,481 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 06:25:50,500 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 06:25:50,502 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 06:25:50,503 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 06:25:50,503 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 06:25:50,504 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test8.i [2021-08-27 06:25:50,553 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6bf47f337/5846fc54e1f8481cb79b8a5438620f67/FLAG656338a6c [2021-08-27 06:25:50,931 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 06:25:50,931 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test8.i [2021-08-27 06:25:50,947 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6bf47f337/5846fc54e1f8481cb79b8a5438620f67/FLAG656338a6c [2021-08-27 06:25:50,957 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6bf47f337/5846fc54e1f8481cb79b8a5438620f67 [2021-08-27 06:25:50,960 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 06:25:50,961 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-27 06:25:50,963 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 06:25:50,963 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 06:25:50,965 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 06:25:50,966 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:25:50" (1/1) ... [2021-08-27 06:25:50,967 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24ed0884 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:25:50, skipping insertion in model container [2021-08-27 06:25:50,967 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:25:50" (1/1) ... [2021-08-27 06:25:50,971 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 06:25:51,013 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 06:25:51,335 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:25:51,349 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-08-27 06:25:51,355 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 06:25:51,397 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:25:51,404 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 06:25:51,438 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:25:51,472 INFO L208 MainTranslator]: Completed translation [2021-08-27 06:25:51,472 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:25:51 WrapperNode [2021-08-27 06:25:51,472 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 06:25:51,473 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 06:25:51,473 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 06:25:51,473 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 06:25:51,479 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:25:51" (1/1) ... [2021-08-27 06:25:51,480 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:25:51" (1/1) ... [2021-08-27 06:25:51,493 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:25:51" (1/1) ... [2021-08-27 06:25:51,494 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:25:51" (1/1) ... [2021-08-27 06:25:51,527 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:25:51" (1/1) ... [2021-08-27 06:25:51,534 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:25:51" (1/1) ... [2021-08-27 06:25:51,537 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:25:51" (1/1) ... [2021-08-27 06:25:51,543 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 06:25:51,543 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 06:25:51,543 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 06:25:51,543 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 06:25:51,544 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:25:51" (1/1) ... [2021-08-27 06:25:51,553 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 06:25:51,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 06:25:51,567 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-27 06:25:51,568 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-27 06:25:51,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-08-27 06:25:51,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 06:25:51,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-08-27 06:25:51,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-08-27 06:25:51,592 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-08-27 06:25:51,592 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-08-27 06:25:51,592 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-08-27 06:25:51,592 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-08-27 06:25:51,592 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-08-27 06:25:51,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-08-27 06:25:51,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-08-27 06:25:51,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-08-27 06:25:51,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-08-27 06:25:51,593 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-08-27 06:25:51,593 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-08-27 06:25:51,593 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-08-27 06:25:51,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-08-27 06:25:51,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-08-27 06:25:51,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-08-27 06:25:51,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-08-27 06:25:51,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-08-27 06:25:51,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-08-27 06:25:51,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-08-27 06:25:51,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-08-27 06:25:51,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-08-27 06:25:51,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-08-27 06:25:51,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-08-27 06:25:51,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-08-27 06:25:51,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-08-27 06:25:51,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-08-27 06:25:51,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-08-27 06:25:51,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-08-27 06:25:51,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-08-27 06:25:51,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-08-27 06:25:51,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-08-27 06:25:51,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-08-27 06:25:51,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-08-27 06:25:51,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-08-27 06:25:51,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-08-27 06:25:51,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-08-27 06:25:51,596 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-08-27 06:25:51,596 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-08-27 06:25:51,596 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_8 [2021-08-27 06:25:51,596 INFO L138 BoogieDeclarations]: Found implementation of procedure free_8 [2021-08-27 06:25:51,596 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-08-27 06:25:51,597 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-08-27 06:25:51,597 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-08-27 06:25:51,597 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-08-27 06:25:51,597 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-08-27 06:25:51,597 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-08-27 06:25:51,597 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-08-27 06:25:51,597 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-08-27 06:25:51,597 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-08-27 06:25:51,598 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-08-27 06:25:51,598 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-08-27 06:25:51,598 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-08-27 06:25:51,598 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-08-27 06:25:51,598 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-08-27 06:25:51,598 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-08-27 06:25:51,598 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-08-27 06:25:51,598 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-08-27 06:25:51,598 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-08-27 06:25:51,599 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-08-27 06:25:51,599 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-08-27 06:25:51,599 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-08-27 06:25:51,599 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-08-27 06:25:51,599 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-08-27 06:25:51,599 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-08-27 06:25:51,599 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-08-27 06:25:51,599 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-08-27 06:25:51,599 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-08-27 06:25:51,600 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-08-27 06:25:51,600 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-08-27 06:25:51,600 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-08-27 06:25:51,600 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-08-27 06:25:51,600 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-08-27 06:25:51,600 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-08-27 06:25:51,600 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-08-27 06:25:51,600 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-08-27 06:25:51,600 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-08-27 06:25:51,601 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-08-27 06:25:51,601 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-08-27 06:25:51,601 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-08-27 06:25:51,601 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-08-27 06:25:51,601 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-08-27 06:25:51,601 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-08-27 06:25:51,601 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-08-27 06:25:51,601 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-08-27 06:25:51,601 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-08-27 06:25:51,601 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-08-27 06:25:51,602 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-08-27 06:25:51,602 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-08-27 06:25:51,602 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-08-27 06:25:51,602 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-08-27 06:25:51,602 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-08-27 06:25:51,602 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-08-27 06:25:51,602 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-08-27 06:25:51,602 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-08-27 06:25:51,602 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-08-27 06:25:51,603 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-08-27 06:25:51,603 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-08-27 06:25:51,603 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-08-27 06:25:51,603 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-08-27 06:25:51,603 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-08-27 06:25:51,603 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-08-27 06:25:51,603 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-08-27 06:25:51,603 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-08-27 06:25:51,603 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-08-27 06:25:51,603 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-08-27 06:25:51,604 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-08-27 06:25:51,604 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-08-27 06:25:51,604 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-08-27 06:25:51,604 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-08-27 06:25:51,604 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-08-27 06:25:51,604 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-08-27 06:25:51,604 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-08-27 06:25:51,604 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-08-27 06:25:51,604 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-08-27 06:25:51,605 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-08-27 06:25:51,605 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-08-27 06:25:51,605 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-08-27 06:25:51,605 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-08-27 06:25:51,605 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-08-27 06:25:51,605 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-08-27 06:25:51,605 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-08-27 06:25:51,605 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-08-27 06:25:51,605 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-08-27 06:25:51,606 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-08-27 06:25:51,606 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-08-27 06:25:51,606 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-08-27 06:25:51,606 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-08-27 06:25:51,606 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-08-27 06:25:51,606 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-08-27 06:25:51,606 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-08-27 06:25:51,606 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-08-27 06:25:51,606 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-08-27 06:25:51,607 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-08-27 06:25:51,607 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-08-27 06:25:51,607 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-08-27 06:25:51,607 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-08-27 06:25:51,607 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-08-27 06:25:51,607 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-08-27 06:25:51,607 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-08-27 06:25:51,607 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-08-27 06:25:51,607 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-08-27 06:25:51,608 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-08-27 06:25:51,608 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-08-27 06:25:51,608 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-08-27 06:25:51,608 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-08-27 06:25:51,608 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-08-27 06:25:51,608 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-08-27 06:25:51,608 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-08-27 06:25:51,608 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-08-27 06:25:51,608 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-08-27 06:25:51,608 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-08-27 06:25:51,609 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-08-27 06:25:51,609 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-08-27 06:25:51,609 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-08-27 06:25:51,609 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-08-27 06:25:51,609 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-08-27 06:25:51,609 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-08-27 06:25:51,609 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-08-27 06:25:51,609 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-08-27 06:25:51,609 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-08-27 06:25:51,609 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-08-27 06:25:51,610 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-08-27 06:25:51,610 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-08-27 06:25:51,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-08-27 06:25:51,610 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-08-27 06:25:51,610 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-08-27 06:25:51,610 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-08-27 06:25:51,610 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-08-27 06:25:51,610 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-08-27 06:25:51,610 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-08-27 06:25:51,611 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-08-27 06:25:51,611 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-08-27 06:25:51,611 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-08-27 06:25:51,611 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-08-27 06:25:51,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-27 06:25:51,611 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-08-27 06:25:51,611 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-08-27 06:25:51,611 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-08-27 06:25:51,611 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-08-27 06:25:51,611 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-08-27 06:25:51,612 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-08-27 06:25:51,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-08-27 06:25:51,612 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-08-27 06:25:51,612 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-08-27 06:25:51,612 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-08-27 06:25:51,612 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-08-27 06:25:51,612 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-08-27 06:25:51,612 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-08-27 06:25:51,612 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-08-27 06:25:51,612 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-08-27 06:25:51,613 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-08-27 06:25:51,613 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-08-27 06:25:51,613 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-08-27 06:25:51,613 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-08-27 06:25:51,613 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-08-27 06:25:51,613 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-08-27 06:25:51,613 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-08-27 06:25:51,613 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-08-27 06:25:51,613 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-08-27 06:25:51,614 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_8 [2021-08-27 06:25:51,614 INFO L130 BoogieDeclarations]: Found specification of procedure free_8 [2021-08-27 06:25:51,614 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-08-27 06:25:51,614 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-08-27 06:25:51,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-08-27 06:25:51,614 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 06:25:51,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-08-27 06:25:51,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 06:25:51,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-08-27 06:25:51,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-08-27 06:25:51,615 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-08-27 06:25:51,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-08-27 06:25:51,615 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-08-27 06:25:52,117 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 06:25:52,362 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 06:25:52,539 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 06:25:52,539 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-08-27 06:25:52,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:25:52 BoogieIcfgContainer [2021-08-27 06:25:52,541 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 06:25:52,542 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-27 06:25:52,542 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-27 06:25:52,543 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-27 06:25:52,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 06:25:50" (1/3) ... [2021-08-27 06:25:52,544 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21f71baf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 06:25:52, skipping insertion in model container [2021-08-27 06:25:52,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:25:51" (2/3) ... [2021-08-27 06:25:52,544 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21f71baf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 06:25:52, skipping insertion in model container [2021-08-27 06:25:52,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:25:52" (3/3) ... [2021-08-27 06:25:52,545 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test8.i [2021-08-27 06:25:52,548 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-27 06:25:52,548 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 74 error locations. [2021-08-27 06:25:52,572 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-27 06:25:52,576 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-27 06:25:52,576 INFO L340 AbstractCegarLoop]: Starting to check reachability of 74 error locations. [2021-08-27 06:25:52,584 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 56 states have (on average 1.5) internal successors, (84), 77 states have internal predecessors, (84), 13 states have call successors, (13), 12 states have call predecessors, (13), 12 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2021-08-27 06:25:52,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-08-27 06:25:52,588 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:25:52,589 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:25:52,589 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting free_8Err0ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-08-27 06:25:52,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:25:52,592 INFO L82 PathProgramCache]: Analyzing trace with hash 12717103, now seen corresponding path program 1 times [2021-08-27 06:25:52,599 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:25:52,599 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [456859037] [2021-08-27 06:25:52,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:25:52,599 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:25:52,600 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:25:52,601 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:25:52,602 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-08-27 06:25:52,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:25:52,744 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 06:25:52,763 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:25:52,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:25:52,895 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:25:52,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:25:52,999 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:25:52,999 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [456859037] [2021-08-27 06:25:53,000 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [456859037] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:25:53,000 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:25:53,000 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-08-27 06:25:53,005 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597291704] [2021-08-27 06:25:53,008 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 06:25:53,008 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:25:53,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 06:25:53,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:25:53,021 INFO L87 Difference]: Start difference. First operand has 103 states, 56 states have (on average 1.5) internal successors, (84), 77 states have internal predecessors, (84), 13 states have call successors, (13), 12 states have call predecessors, (13), 12 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:25:53,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:25:53,069 INFO L93 Difference]: Finished difference Result 32 states and 33 transitions. [2021-08-27 06:25:53,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 06:25:53,071 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 18 [2021-08-27 06:25:53,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:25:53,075 INFO L225 Difference]: With dead ends: 32 [2021-08-27 06:25:53,076 INFO L226 Difference]: Without dead ends: 29 [2021-08-27 06:25:53,076 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 26.6ms TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-08-27 06:25:53,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-08-27 06:25:53,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2021-08-27 06:25:53,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 17 states have internal predecessors, (19), 6 states have call successors, (6), 6 states have call predecessors, (6), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-08-27 06:25:53,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2021-08-27 06:25:53,099 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 18 [2021-08-27 06:25:53,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:25:53,100 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2021-08-27 06:25:53,100 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:25:53,100 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2021-08-27 06:25:53,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-08-27 06:25:53,101 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:25:53,101 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:25:53,112 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-08-27 06:25:53,312 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:25:53,312 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting free_8Err1ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-08-27 06:25:53,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:25:53,313 INFO L82 PathProgramCache]: Analyzing trace with hash 394230500, now seen corresponding path program 1 times [2021-08-27 06:25:53,313 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:25:53,313 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [720974395] [2021-08-27 06:25:53,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:25:53,313 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:25:53,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:25:53,314 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:25:53,316 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-08-27 06:25:53,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:25:53,479 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-27 06:25:53,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:25:53,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:25:53,660 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:25:53,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:25:53,818 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:25:53,818 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [720974395] [2021-08-27 06:25:53,818 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [720974395] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:25:53,818 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:25:53,819 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 8 [2021-08-27 06:25:53,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437114648] [2021-08-27 06:25:53,820 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-08-27 06:25:53,820 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:25:53,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-27 06:25:53,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-08-27 06:25:53,821 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand has 9 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 4 states have call successors, (11), 4 states have call predecessors, (11), 6 states have return successors, (6), 6 states have call predecessors, (6), 2 states have call successors, (6) [2021-08-27 06:25:53,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:25:53,987 INFO L93 Difference]: Finished difference Result 41 states and 43 transitions. [2021-08-27 06:25:53,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-27 06:25:53,987 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 4 states have call successors, (11), 4 states have call predecessors, (11), 6 states have return successors, (6), 6 states have call predecessors, (6), 2 states have call successors, (6) Word has length 19 [2021-08-27 06:25:53,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:25:53,989 INFO L225 Difference]: With dead ends: 41 [2021-08-27 06:25:53,989 INFO L226 Difference]: Without dead ends: 41 [2021-08-27 06:25:53,991 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 103.6ms TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-08-27 06:25:53,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2021-08-27 06:25:53,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2021-08-27 06:25:53,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 23 states have (on average 1.173913043478261) internal successors, (27), 25 states have internal predecessors, (27), 7 states have call successors, (7), 7 states have call predecessors, (7), 8 states have return successors, (8), 7 states have call predecessors, (8), 6 states have call successors, (8) [2021-08-27 06:25:53,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 42 transitions. [2021-08-27 06:25:53,999 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 42 transitions. Word has length 19 [2021-08-27 06:25:54,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:25:54,000 INFO L470 AbstractCegarLoop]: Abstraction has 40 states and 42 transitions. [2021-08-27 06:25:54,000 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 4 states have call successors, (11), 4 states have call predecessors, (11), 6 states have return successors, (6), 6 states have call predecessors, (6), 2 states have call successors, (6) [2021-08-27 06:25:54,000 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 42 transitions. [2021-08-27 06:25:54,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-08-27 06:25:54,001 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:25:54,001 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:25:54,011 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-08-27 06:25:54,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:25:54,208 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting free_8Err2ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-08-27 06:25:54,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:25:54,209 INFO L82 PathProgramCache]: Analyzing trace with hash -663756079, now seen corresponding path program 1 times [2021-08-27 06:25:54,209 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:25:54,209 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1685380618] [2021-08-27 06:25:54,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:25:54,210 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:25:54,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:25:54,210 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:25:54,215 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-08-27 06:25:54,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:25:54,375 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-27 06:25:54,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:25:54,414 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-08-27 06:25:54,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:25:54,462 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:25:54,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:25:54,568 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:25:54,568 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1685380618] [2021-08-27 06:25:54,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1685380618] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:25:54,569 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:25:54,569 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-08-27 06:25:54,569 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560316130] [2021-08-27 06:25:54,569 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 06:25:54,569 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:25:54,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 06:25:54,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:25:54,570 INFO L87 Difference]: Start difference. First operand 40 states and 42 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:25:54,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:25:54,605 INFO L93 Difference]: Finished difference Result 40 states and 41 transitions. [2021-08-27 06:25:54,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 06:25:54,606 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 20 [2021-08-27 06:25:54,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:25:54,607 INFO L225 Difference]: With dead ends: 40 [2021-08-27 06:25:54,607 INFO L226 Difference]: Without dead ends: 40 [2021-08-27 06:25:54,608 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 34 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.5ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:25:54,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2021-08-27 06:25:54,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2021-08-27 06:25:54,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 23 states have (on average 1.1304347826086956) internal successors, (26), 25 states have internal predecessors, (26), 7 states have call successors, (7), 7 states have call predecessors, (7), 8 states have return successors, (8), 7 states have call predecessors, (8), 6 states have call successors, (8) [2021-08-27 06:25:54,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 41 transitions. [2021-08-27 06:25:54,611 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 41 transitions. Word has length 20 [2021-08-27 06:25:54,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:25:54,611 INFO L470 AbstractCegarLoop]: Abstraction has 40 states and 41 transitions. [2021-08-27 06:25:54,611 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:25:54,611 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 41 transitions. [2021-08-27 06:25:54,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-08-27 06:25:54,612 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:25:54,612 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:25:54,620 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-08-27 06:25:54,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:25:54,817 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting free_8Err2ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-08-27 06:25:54,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:25:54,818 INFO L82 PathProgramCache]: Analyzing trace with hash 1834259858, now seen corresponding path program 1 times [2021-08-27 06:25:54,818 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:25:54,818 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [164022182] [2021-08-27 06:25:54,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:25:54,818 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:25:54,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:25:54,819 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:25:54,833 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-08-27 06:25:54,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:25:54,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-27 06:25:54,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:25:55,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:25:55,075 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:25:55,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:25:55,212 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:25:55,212 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [164022182] [2021-08-27 06:25:55,213 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [164022182] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:25:55,213 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:25:55,213 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-08-27 06:25:55,213 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801315863] [2021-08-27 06:25:55,213 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 06:25:55,214 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:25:55,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 06:25:55,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:25:55,214 INFO L87 Difference]: Start difference. First operand 40 states and 41 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:25:55,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:25:55,249 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2021-08-27 06:25:55,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 06:25:55,250 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 20 [2021-08-27 06:25:55,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:25:55,250 INFO L225 Difference]: With dead ends: 37 [2021-08-27 06:25:55,250 INFO L226 Difference]: Without dead ends: 37 [2021-08-27 06:25:55,251 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 31.4ms TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-08-27 06:25:55,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-08-27 06:25:55,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 36. [2021-08-27 06:25:55,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 20 states have (on average 1.05) internal successors, (21), 21 states have internal predecessors, (21), 7 states have call successors, (7), 7 states have call predecessors, (7), 8 states have return successors, (8), 7 states have call predecessors, (8), 6 states have call successors, (8) [2021-08-27 06:25:55,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 36 transitions. [2021-08-27 06:25:55,254 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 36 transitions. Word has length 20 [2021-08-27 06:25:55,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:25:55,254 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 36 transitions. [2021-08-27 06:25:55,254 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:25:55,254 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 36 transitions. [2021-08-27 06:25:55,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-08-27 06:25:55,255 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:25:55,255 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:25:55,264 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-08-27 06:25:55,468 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:25:55,469 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-08-27 06:25:55,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:25:55,469 INFO L82 PathProgramCache]: Analyzing trace with hash -1534178647, now seen corresponding path program 1 times [2021-08-27 06:25:55,469 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:25:55,470 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1024223746] [2021-08-27 06:25:55,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:25:55,470 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:25:55,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:25:55,471 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:25:55,471 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-08-27 06:25:55,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:25:55,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-27 06:25:55,658 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:25:55,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:25:55,723 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:25:55,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:25:55,863 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:25:55,863 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1024223746] [2021-08-27 06:25:55,863 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1024223746] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:25:55,863 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:25:55,863 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-08-27 06:25:55,863 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312066288] [2021-08-27 06:25:55,863 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-27 06:25:55,863 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:25:55,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 06:25:55,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 06:25:55,864 INFO L87 Difference]: Start difference. First operand 36 states and 36 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-08-27 06:25:55,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:25:55,889 INFO L93 Difference]: Finished difference Result 40 states and 39 transitions. [2021-08-27 06:25:55,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 06:25:55,890 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 23 [2021-08-27 06:25:55,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:25:55,890 INFO L225 Difference]: With dead ends: 40 [2021-08-27 06:25:55,890 INFO L226 Difference]: Without dead ends: 27 [2021-08-27 06:25:55,890 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 06:25:55,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-08-27 06:25:55,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2021-08-27 06:25:55,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 15 states have (on average 1.0) internal successors, (15), 15 states have internal predecessors, (15), 6 states have call successors, (6), 6 states have call predecessors, (6), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-08-27 06:25:55,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 26 transitions. [2021-08-27 06:25:55,892 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 26 transitions. Word has length 23 [2021-08-27 06:25:55,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:25:55,892 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 26 transitions. [2021-08-27 06:25:55,892 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-08-27 06:25:55,893 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 26 transitions. [2021-08-27 06:25:55,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-08-27 06:25:55,893 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:25:55,893 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:25:55,899 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-08-27 06:25:56,097 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:25:56,097 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-08-27 06:25:56,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:25:56,097 INFO L82 PathProgramCache]: Analyzing trace with hash 714098001, now seen corresponding path program 1 times [2021-08-27 06:25:56,097 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:25:56,097 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [50917280] [2021-08-27 06:25:56,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:25:56,098 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:25:56,098 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:25:56,098 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:25:56,099 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-08-27 06:25:56,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:25:56,283 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 17 conjunts are in the unsatisfiable core [2021-08-27 06:25:56,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:25:56,299 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-08-27 06:25:56,300 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2021-08-27 06:25:56,504 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2021-08-27 06:26:00,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:26:00,684 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:26:04,872 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:26:04,873 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [50917280] [2021-08-27 06:26:04,873 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-27 06:26:04,873 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [916148991] [2021-08-27 06:26:04,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:26:04,874 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-08-27 06:26:04,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2021-08-27 06:26:04,884 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-08-27 06:26:04,913 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2021-08-27 06:26:05,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:26:05,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 18 conjunts are in the unsatisfiable core [2021-08-27 06:26:05,222 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:26:05,247 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-08-27 06:26:05,247 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 27 [2021-08-27 06:26:05,443 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2021-08-27 06:26:07,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:26:07,553 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:26:11,714 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-27 06:26:11,714 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1495129861] [2021-08-27 06:26:11,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:26:11,714 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 06:26:11,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 06:26:11,725 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 06:26:11,762 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-08-27 06:26:11,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:26:11,972 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 15 conjunts are in the unsatisfiable core [2021-08-27 06:26:11,980 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:26:12,070 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2021-08-27 06:26:14,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:26:14,137 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:26:20,292 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-27 06:26:20,292 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:26:20,292 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-08-27 06:26:20,292 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-08-27 06:26:20,292 INFO L626 BasicCegarLoop]: Counterexample might be feasible [2021-08-27 06:26:20,296 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-08-27 06:26:20,297 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION [2021-08-27 06:26:20,297 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION [2021-08-27 06:26:20,297 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION [2021-08-27 06:26:20,297 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION [2021-08-27 06:26:20,297 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION [2021-08-27 06:26:20,298 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION [2021-08-27 06:26:20,298 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION [2021-08-27 06:26:20,298 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION [2021-08-27 06:26:20,298 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION [2021-08-27 06:26:20,298 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION [2021-08-27 06:26:20,298 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION [2021-08-27 06:26:20,298 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION [2021-08-27 06:26:20,298 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION [2021-08-27 06:26:20,299 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION [2021-08-27 06:26:20,299 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION [2021-08-27 06:26:20,299 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION [2021-08-27 06:26:20,299 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION [2021-08-27 06:26:20,299 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION [2021-08-27 06:26:20,299 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION [2021-08-27 06:26:20,299 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION [2021-08-27 06:26:20,299 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION [2021-08-27 06:26:20,300 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION [2021-08-27 06:26:20,300 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION [2021-08-27 06:26:20,300 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION [2021-08-27 06:26:20,300 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION [2021-08-27 06:26:20,300 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION [2021-08-27 06:26:20,300 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION [2021-08-27 06:26:20,300 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION [2021-08-27 06:26:20,301 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION [2021-08-27 06:26:20,301 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION [2021-08-27 06:26:20,301 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION [2021-08-27 06:26:20,301 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION [2021-08-27 06:26:20,301 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION [2021-08-27 06:26:20,301 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION [2021-08-27 06:26:20,301 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION [2021-08-27 06:26:20,301 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION [2021-08-27 06:26:20,302 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION [2021-08-27 06:26:20,302 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION [2021-08-27 06:26:20,302 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION [2021-08-27 06:26:20,302 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION [2021-08-27 06:26:20,302 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION [2021-08-27 06:26:20,302 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION [2021-08-27 06:26:20,302 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:26:20,303 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:26:20,303 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:26:20,303 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:26:20,303 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:26:20,303 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:26:20,303 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_8Err0ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:26:20,303 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_8Err1ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:26:20,304 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_8Err2ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:26:20,304 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION [2021-08-27 06:26:20,304 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION [2021-08-27 06:26:20,304 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION [2021-08-27 06:26:20,304 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION [2021-08-27 06:26:20,304 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION [2021-08-27 06:26:20,304 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION [2021-08-27 06:26:20,304 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION [2021-08-27 06:26:20,304 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION [2021-08-27 06:26:20,305 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:26:20,305 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:26:20,305 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:26:20,305 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:26:20,305 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:26:20,305 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:26:20,305 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION [2021-08-27 06:26:20,306 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION [2021-08-27 06:26:20,306 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION [2021-08-27 06:26:20,306 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION [2021-08-27 06:26:20,306 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION [2021-08-27 06:26:20,306 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION [2021-08-27 06:26:20,306 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION [2021-08-27 06:26:20,306 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION [2021-08-27 06:26:20,327 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-08-27 06:26:20,518 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2021-08-27 06:26:20,722 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-08-27 06:26:20,915 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:26:20,920 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-27 06:26:20,922 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-08-27 06:26:20,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 06:26:20 BoogieIcfgContainer [2021-08-27 06:26:20,927 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-27 06:26:20,927 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 06:26:20,928 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 06:26:20,928 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 06:26:20,928 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:25:52" (3/4) ... [2021-08-27 06:26:20,930 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-27 06:26:20,930 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 06:26:20,931 INFO L168 Benchmark]: Toolchain (without parser) took 29969.70 ms. Allocated memory was 62.9 MB in the beginning and 172.0 MB in the end (delta: 109.1 MB). Free memory was 41.6 MB in the beginning and 122.1 MB in the end (delta: -80.5 MB). Peak memory consumption was 27.5 MB. Max. memory is 16.1 GB. [2021-08-27 06:26:20,931 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 62.9 MB. Free memory is still 43.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 06:26:20,933 INFO L168 Benchmark]: CACSL2BoogieTranslator took 509.66 ms. Allocated memory is still 62.9 MB. Free memory was 41.4 MB in the beginning and 28.0 MB in the end (delta: 13.4 MB). Peak memory consumption was 11.8 MB. Max. memory is 16.1 GB. [2021-08-27 06:26:20,933 INFO L168 Benchmark]: Boogie Preprocessor took 69.69 ms. Allocated memory is still 62.9 MB. Free memory was 28.0 MB in the beginning and 42.4 MB in the end (delta: -14.5 MB). Peak memory consumption was 5.9 MB. Max. memory is 16.1 GB. [2021-08-27 06:26:20,934 INFO L168 Benchmark]: RCFGBuilder took 997.47 ms. Allocated memory was 62.9 MB in the beginning and 79.7 MB in the end (delta: 16.8 MB). Free memory was 42.4 MB in the beginning and 50.8 MB in the end (delta: -8.4 MB). Peak memory consumption was 31.1 MB. Max. memory is 16.1 GB. [2021-08-27 06:26:20,934 INFO L168 Benchmark]: TraceAbstraction took 28385.52 ms. Allocated memory was 79.7 MB in the beginning and 172.0 MB in the end (delta: 92.3 MB). Free memory was 50.3 MB in the beginning and 122.1 MB in the end (delta: -71.8 MB). Peak memory consumption was 20.3 MB. Max. memory is 16.1 GB. [2021-08-27 06:26:20,934 INFO L168 Benchmark]: Witness Printer took 2.71 ms. Allocated memory is still 172.0 MB. Free memory is still 122.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 06:26:20,935 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 62.9 MB. Free memory is still 43.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 509.66 ms. Allocated memory is still 62.9 MB. Free memory was 41.4 MB in the beginning and 28.0 MB in the end (delta: 13.4 MB). Peak memory consumption was 11.8 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 69.69 ms. Allocated memory is still 62.9 MB. Free memory was 28.0 MB in the beginning and 42.4 MB in the end (delta: -14.5 MB). Peak memory consumption was 5.9 MB. Max. memory is 16.1 GB. * RCFGBuilder took 997.47 ms. Allocated memory was 62.9 MB in the beginning and 79.7 MB in the end (delta: 16.8 MB). Free memory was 42.4 MB in the beginning and 50.8 MB in the end (delta: -8.4 MB). Peak memory consumption was 31.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 28385.52 ms. Allocated memory was 79.7 MB in the beginning and 172.0 MB in the end (delta: 92.3 MB). Free memory was 50.3 MB in the beginning and 122.1 MB in the end (delta: -71.8 MB). Peak memory consumption was 20.3 MB. Max. memory is 16.1 GB. * Witness Printer took 2.71 ms. Allocated memory is still 172.0 MB. Free memory is still 122.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 769]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: unable to decide satisfiability of path constraint, overapproximation of memtrack at line 769. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L757] int *a8; [L770] CALL entry_point() [L765] CALL alloc_8() [L759] CALL, EXPR ldv_malloc(sizeof(int)) [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L759] RET, EXPR ldv_malloc(sizeof(int)) [L759] a8 = (int *)ldv_malloc(sizeof(int)) [L765] RET alloc_8() [L766] CALL free_8() [L762] COND TRUE \read(*a8) [L762] free(a8) [L762] free(a8) [L762] free(a8) [L766] RET free_8() [L767] a8 = 0 [L770] RET entry_point() - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 762]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 762]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 762]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 49 procedures, 343 locations, 74 error locations. Started 1 CEGAR loops. OverallTime: 28347.5ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 9.6ms, AutomataDifference: 340.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 6.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 141 SDtfs, 89 SDslu, 230 SDs, 0 SdLazy, 158 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 148.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 203 GetRequests, 176 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 179.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=103occurred in iteration=0, InterpolantAutomatonStates: 26, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 29.8ms AutomataMinimizationTime, 5 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 51.0ms SsaConstructionTime, 94.6ms SatisfiabilityAnalysisTime, 1230.5ms InterpolantComputationTime, 100 NumberOfCodeBlocks, 100 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 190 ConstructedInterpolants, 0 QuantifiedInterpolants, 595 SizeOfPredicates, 1 NumberOfNonLiveVariables, 461 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-08-27 06:26:20,981 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...