./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test3-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 5fbdf5bf Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/memleaks_test3-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 34250e9d8f469697cb8850c8aa9214fde887cb00 ................................................................................................................................... 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_test3-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 34250e9d8f469697cb8850c8aa9214fde887cb00 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-30 17:53:20,325 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-30 17:53:20,327 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-30 17:53:20,357 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-30 17:53:20,358 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-30 17:53:20,358 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-30 17:53:20,359 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-30 17:53:20,361 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-30 17:53:20,362 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-30 17:53:20,362 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-30 17:53:20,363 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-30 17:53:20,364 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-30 17:53:20,364 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-30 17:53:20,365 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-30 17:53:20,366 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-30 17:53:20,367 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-30 17:53:20,367 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-30 17:53:20,368 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-30 17:53:20,369 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-30 17:53:20,371 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-30 17:53:20,372 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-30 17:53:20,373 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-30 17:53:20,374 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-30 17:53:20,374 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-30 17:53:20,376 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-30 17:53:20,377 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-30 17:53:20,377 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-30 17:53:20,378 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-30 17:53:20,378 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-30 17:53:20,379 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-30 17:53:20,379 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-30 17:53:20,379 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-30 17:53:20,380 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-30 17:53:20,380 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-30 17:53:20,381 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-30 17:53:20,381 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-30 17:53:20,382 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-30 17:53:20,382 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-30 17:53:20,382 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-30 17:53:20,383 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-30 17:53:20,383 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-30 17:53:20,384 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-08-30 17:53:20,399 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-30 17:53:20,400 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-30 17:53:20,400 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-30 17:53:20,400 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-30 17:53:20,401 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-30 17:53:20,401 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-30 17:53:20,401 INFO L138 SettingsManager]: * Use SBE=true [2021-08-30 17:53:20,401 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-30 17:53:20,401 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-30 17:53:20,401 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-30 17:53:20,402 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-30 17:53:20,402 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-30 17:53:20,402 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-30 17:53:20,402 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-30 17:53:20,402 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-30 17:53:20,402 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-08-30 17:53:20,402 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-30 17:53:20,402 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-30 17:53:20,403 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-30 17:53:20,403 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-30 17:53:20,403 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-30 17:53:20,403 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-30 17:53:20,403 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-30 17:53:20,403 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-30 17:53:20,403 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-30 17:53:20,404 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-30 17:53:20,404 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-30 17:53:20,404 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-30 17:53:20,404 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-30 17:53:20,404 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 34250e9d8f469697cb8850c8aa9214fde887cb00 [2021-08-30 17:53:20,646 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-30 17:53:20,660 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-30 17:53:20,661 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-30 17:53:20,662 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-30 17:53:20,663 INFO L275 PluginConnector]: CDTParser initialized [2021-08-30 17:53:20,664 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test3-2.i [2021-08-30 17:53:20,713 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12afd4887/16a24c18985e48638e9fdfd1bbe38d24/FLAGcfb400d23 [2021-08-30 17:53:21,160 INFO L306 CDTParser]: Found 1 translation units. [2021-08-30 17:53:21,160 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test3-2.i [2021-08-30 17:53:21,170 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12afd4887/16a24c18985e48638e9fdfd1bbe38d24/FLAGcfb400d23 [2021-08-30 17:53:21,180 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12afd4887/16a24c18985e48638e9fdfd1bbe38d24 [2021-08-30 17:53:21,181 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-30 17:53:21,183 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-30 17:53:21,183 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-30 17:53:21,184 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-30 17:53:21,186 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-30 17:53:21,186 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 05:53:21" (1/1) ... [2021-08-30 17:53:21,187 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@199d8b22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:53:21, skipping insertion in model container [2021-08-30 17:53:21,187 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 05:53:21" (1/1) ... [2021-08-30 17:53:21,191 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-30 17:53:21,212 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-30 17:53:21,498 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-30 17:53:21,513 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-08-30 17:53:21,514 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1bd24922 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:53:21, skipping insertion in model container [2021-08-30 17:53:21,514 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-30 17:53:21,514 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-08-30 17:53:21,516 INFO L158 Benchmark]: Toolchain (without parser) took 332.34ms. Allocated memory is still 56.6MB. Free memory was 34.1MB in the beginning and 36.4MB in the end (delta: -2.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-08-30 17:53:21,517 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 56.6MB. Free memory was 38.9MB in the beginning and 38.8MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-30 17:53:21,518 INFO L158 Benchmark]: CACSL2BoogieTranslator took 330.58ms. Allocated memory is still 56.6MB. Free memory was 33.9MB in the beginning and 36.6MB in the end (delta: -2.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-08-30 17:53:21,519 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 56.6MB. Free memory was 38.9MB in the beginning and 38.8MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 330.58ms. Allocated memory is still 56.6MB. Free memory was 33.9MB in the beginning and 36.6MB in the end (delta: -2.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-30 17:53:22,886 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-30 17:53:22,889 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-30 17:53:22,922 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-30 17:53:22,924 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-30 17:53:22,928 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-30 17:53:22,930 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-30 17:53:22,935 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-30 17:53:22,946 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-30 17:53:22,950 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-30 17:53:22,951 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-30 17:53:22,954 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-30 17:53:22,955 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-30 17:53:22,956 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-30 17:53:22,958 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-30 17:53:22,959 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-30 17:53:22,960 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-30 17:53:22,960 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-30 17:53:22,964 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-30 17:53:22,966 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-30 17:53:22,969 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-30 17:53:22,970 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-30 17:53:22,970 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-30 17:53:22,972 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-30 17:53:22,974 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-30 17:53:22,975 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-30 17:53:22,975 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-30 17:53:22,976 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-30 17:53:22,976 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-30 17:53:22,977 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-30 17:53:22,977 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-30 17:53:22,977 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-30 17:53:22,978 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-30 17:53:22,979 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-30 17:53:22,980 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-30 17:53:22,980 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-30 17:53:22,981 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-30 17:53:22,981 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-30 17:53:22,981 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-30 17:53:22,982 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-30 17:53:22,982 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-30 17:53:22,983 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-08-30 17:53:23,009 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-30 17:53:23,009 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-30 17:53:23,010 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-30 17:53:23,010 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-30 17:53:23,011 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-30 17:53:23,011 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-30 17:53:23,012 INFO L138 SettingsManager]: * Use SBE=true [2021-08-30 17:53:23,012 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-30 17:53:23,012 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-30 17:53:23,012 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-30 17:53:23,013 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-30 17:53:23,013 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-30 17:53:23,013 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-30 17:53:23,013 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-30 17:53:23,013 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-30 17:53:23,014 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-08-30 17:53:23,014 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-30 17:53:23,014 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-30 17:53:23,014 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-30 17:53:23,014 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-30 17:53:23,014 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-30 17:53:23,015 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-30 17:53:23,015 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-30 17:53:23,015 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-30 17:53:23,015 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-30 17:53:23,015 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-30 17:53:23,015 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-30 17:53:23,016 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-30 17:53:23,016 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-30 17:53:23,016 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-30 17:53:23,016 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-30 17:53:23,016 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-30 17:53:23,017 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 34250e9d8f469697cb8850c8aa9214fde887cb00 [2021-08-30 17:53:23,262 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-30 17:53:23,281 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-30 17:53:23,283 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-30 17:53:23,283 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-30 17:53:23,284 INFO L275 PluginConnector]: CDTParser initialized [2021-08-30 17:53:23,285 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test3-2.i [2021-08-30 17:53:23,327 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a13f28f4f/a8864ffdacba426bac5cb6fdd264680a/FLAGc20605486 [2021-08-30 17:53:23,695 INFO L306 CDTParser]: Found 1 translation units. [2021-08-30 17:53:23,696 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test3-2.i [2021-08-30 17:53:23,709 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a13f28f4f/a8864ffdacba426bac5cb6fdd264680a/FLAGc20605486 [2021-08-30 17:53:24,059 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a13f28f4f/a8864ffdacba426bac5cb6fdd264680a [2021-08-30 17:53:24,062 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-30 17:53:24,063 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-30 17:53:24,064 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-30 17:53:24,064 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-30 17:53:24,066 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-30 17:53:24,067 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 05:53:24" (1/1) ... [2021-08-30 17:53:24,068 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4eebbc32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:53:24, skipping insertion in model container [2021-08-30 17:53:24,068 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 05:53:24" (1/1) ... [2021-08-30 17:53:24,073 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-30 17:53:24,108 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-30 17:53:24,357 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-30 17:53:24,368 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-08-30 17:53:24,373 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-30 17:53:24,399 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-30 17:53:24,404 INFO L203 MainTranslator]: Completed pre-run [2021-08-30 17:53:24,434 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-30 17:53:24,463 INFO L208 MainTranslator]: Completed translation [2021-08-30 17:53:24,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:53:24 WrapperNode [2021-08-30 17:53:24,464 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-30 17:53:24,465 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-30 17:53:24,465 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-30 17:53:24,465 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-30 17:53:24,472 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:53:24" (1/1) ... [2021-08-30 17:53:24,472 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:53:24" (1/1) ... [2021-08-30 17:53:24,498 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:53:24" (1/1) ... [2021-08-30 17:53:24,498 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:53:24" (1/1) ... [2021-08-30 17:53:24,527 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:53:24" (1/1) ... [2021-08-30 17:53:24,531 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:53:24" (1/1) ... [2021-08-30 17:53:24,545 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:53:24" (1/1) ... [2021-08-30 17:53:24,556 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-30 17:53:24,557 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-30 17:53:24,558 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-30 17:53:24,558 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-30 17:53:24,559 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:53:24" (1/1) ... [2021-08-30 17:53:24,564 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-30 17:53:24,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-30 17:53:24,586 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-30 17:53:24,605 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-30 17:53:24,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-08-30 17:53:24,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-30 17:53:24,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-08-30 17:53:24,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-08-30 17:53:24,617 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-08-30 17:53:24,619 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-08-30 17:53:24,619 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-08-30 17:53:24,619 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-08-30 17:53:24,619 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-08-30 17:53:24,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-08-30 17:53:24,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-08-30 17:53:24,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-08-30 17:53:24,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-08-30 17:53:24,620 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-08-30 17:53:24,620 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-08-30 17:53:24,620 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-08-30 17:53:24,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-08-30 17:53:24,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-08-30 17:53:24,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-08-30 17:53:24,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-08-30 17:53:24,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-08-30 17:53:24,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-08-30 17:53:24,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-08-30 17:53:24,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-08-30 17:53:24,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-08-30 17:53:24,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-08-30 17:53:24,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-08-30 17:53:24,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-08-30 17:53:24,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-08-30 17:53:24,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-08-30 17:53:24,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-08-30 17:53:24,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-08-30 17:53:24,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-08-30 17:53:24,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-08-30 17:53:24,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-08-30 17:53:24,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-08-30 17:53:24,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-08-30 17:53:24,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-08-30 17:53:24,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-08-30 17:53:24,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-08-30 17:53:24,623 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-08-30 17:53:24,624 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-08-30 17:53:24,624 INFO L138 BoogieDeclarations]: Found implementation of procedure h_safe [2021-08-30 17:53:24,624 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-08-30 17:53:24,624 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-08-30 17:53:24,625 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-08-30 17:53:24,625 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-08-30 17:53:24,625 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-08-30 17:53:24,625 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-08-30 17:53:24,626 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-08-30 17:53:24,626 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-08-30 17:53:24,626 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-08-30 17:53:24,626 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-08-30 17:53:24,626 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-08-30 17:53:24,626 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-08-30 17:53:24,626 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-08-30 17:53:24,627 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-08-30 17:53:24,627 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-08-30 17:53:24,627 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-08-30 17:53:24,627 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-08-30 17:53:24,627 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-08-30 17:53:24,627 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-08-30 17:53:24,628 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-08-30 17:53:24,628 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-08-30 17:53:24,629 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-08-30 17:53:24,629 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-08-30 17:53:24,629 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-08-30 17:53:24,629 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-08-30 17:53:24,629 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-08-30 17:53:24,630 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-08-30 17:53:24,630 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-08-30 17:53:24,630 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-08-30 17:53:24,630 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-08-30 17:53:24,630 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-08-30 17:53:24,630 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-08-30 17:53:24,630 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-08-30 17:53:24,630 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-08-30 17:53:24,631 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-08-30 17:53:24,631 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-08-30 17:53:24,631 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-08-30 17:53:24,631 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-08-30 17:53:24,631 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-08-30 17:53:24,632 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-08-30 17:53:24,632 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-08-30 17:53:24,632 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-08-30 17:53:24,632 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-08-30 17:53:24,632 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-08-30 17:53:24,632 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-08-30 17:53:24,632 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-08-30 17:53:24,632 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-08-30 17:53:24,633 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-08-30 17:53:24,633 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-08-30 17:53:24,633 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-08-30 17:53:24,633 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-08-30 17:53:24,633 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-08-30 17:53:24,633 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-08-30 17:53:24,633 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-08-30 17:53:24,633 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-08-30 17:53:24,634 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-08-30 17:53:24,634 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-08-30 17:53:24,634 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-08-30 17:53:24,634 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-08-30 17:53:24,634 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-08-30 17:53:24,635 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-08-30 17:53:24,635 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-08-30 17:53:24,635 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-08-30 17:53:24,635 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-08-30 17:53:24,635 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-08-30 17:53:24,635 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-08-30 17:53:24,635 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-08-30 17:53:24,635 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-08-30 17:53:24,635 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-08-30 17:53:24,636 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-08-30 17:53:24,636 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-08-30 17:53:24,636 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-08-30 17:53:24,636 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-08-30 17:53:24,636 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-08-30 17:53:24,636 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-08-30 17:53:24,636 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-08-30 17:53:24,637 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-08-30 17:53:24,637 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-08-30 17:53:24,637 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-08-30 17:53:24,637 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-08-30 17:53:24,638 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-08-30 17:53:24,640 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-08-30 17:53:24,640 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-08-30 17:53:24,640 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-08-30 17:53:24,640 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-08-30 17:53:24,641 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-08-30 17:53:24,642 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-08-30 17:53:24,642 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-08-30 17:53:24,642 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-08-30 17:53:24,643 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-08-30 17:53:24,648 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-08-30 17:53:24,649 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-08-30 17:53:24,649 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-08-30 17:53:24,649 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-08-30 17:53:24,649 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-08-30 17:53:24,649 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-08-30 17:53:24,649 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-08-30 17:53:24,649 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-08-30 17:53:24,649 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-08-30 17:53:24,649 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-08-30 17:53:24,649 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-08-30 17:53:24,649 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-08-30 17:53:24,649 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-08-30 17:53:24,649 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-08-30 17:53:24,649 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-08-30 17:53:24,649 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-08-30 17:53:24,650 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-08-30 17:53:24,650 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-08-30 17:53:24,650 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-08-30 17:53:24,650 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-08-30 17:53:24,650 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-08-30 17:53:24,650 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-08-30 17:53:24,650 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-08-30 17:53:24,650 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-08-30 17:53:24,650 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-08-30 17:53:24,650 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-08-30 17:53:24,650 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-08-30 17:53:24,650 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-08-30 17:53:24,650 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-08-30 17:53:24,650 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-08-30 17:53:24,650 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-08-30 17:53:24,650 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-08-30 17:53:24,650 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-08-30 17:53:24,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-08-30 17:53:24,651 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-08-30 17:53:24,651 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-08-30 17:53:24,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-08-30 17:53:24,651 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-08-30 17:53:24,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-08-30 17:53:24,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-08-30 17:53:24,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-08-30 17:53:24,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-08-30 17:53:24,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-08-30 17:53:24,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-08-30 17:53:24,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-30 17:53:24,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-08-30 17:53:24,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-08-30 17:53:24,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-08-30 17:53:24,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-08-30 17:53:24,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-08-30 17:53:24,651 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-08-30 17:53:24,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-08-30 17:53:24,658 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-08-30 17:53:24,658 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-08-30 17:53:24,658 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-08-30 17:53:24,658 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-08-30 17:53:24,658 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-08-30 17:53:24,658 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-08-30 17:53:24,658 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-08-30 17:53:24,659 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-08-30 17:53:24,659 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-08-30 17:53:24,659 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-08-30 17:53:24,659 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-08-30 17:53:24,659 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-08-30 17:53:24,659 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-08-30 17:53:24,659 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-08-30 17:53:24,659 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-08-30 17:53:24,659 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-08-30 17:53:24,660 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-08-30 17:53:24,660 INFO L130 BoogieDeclarations]: Found specification of procedure h_safe [2021-08-30 17:53:24,660 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-08-30 17:53:24,660 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-08-30 17:53:24,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-08-30 17:53:24,660 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-30 17:53:24,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-08-30 17:53:24,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-30 17:53:24,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-08-30 17:53:24,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-08-30 17:53:24,661 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-08-30 17:53:24,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-08-30 17:53:24,661 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-08-30 17:53:24,997 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-30 17:53:25,084 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-30 17:53:25,173 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-30 17:53:25,173 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-08-30 17:53:25,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 05:53:25 BoogieIcfgContainer [2021-08-30 17:53:25,176 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-30 17:53:25,178 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-30 17:53:25,179 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-30 17:53:25,181 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-30 17:53:25,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 05:53:24" (1/3) ... [2021-08-30 17:53:25,182 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7078272e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 05:53:25, skipping insertion in model container [2021-08-30 17:53:25,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:53:24" (2/3) ... [2021-08-30 17:53:25,182 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7078272e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 05:53:25, skipping insertion in model container [2021-08-30 17:53:25,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 05:53:25" (3/3) ... [2021-08-30 17:53:25,184 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test3-2.i [2021-08-30 17:53:25,187 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-30 17:53:25,188 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 74 error locations. [2021-08-30 17:53:25,223 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-30 17:53:25,230 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-30 17:53:25,230 INFO L340 AbstractCegarLoop]: Starting to check reachability of 74 error locations. [2021-08-30 17:53:25,250 INFO L276 IsEmpty]: Start isEmpty. Operand has 100 states, 55 states have (on average 1.509090909090909) internal successors, (83), 76 states have internal predecessors, (83), 12 states have call successors, (12), 11 states have call predecessors, (12), 11 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2021-08-30 17:53:25,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-08-30 17:53:25,258 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:53:25,258 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:53:25,258 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-08-30 17:53:25,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:53:25,262 INFO L82 PathProgramCache]: Analyzing trace with hash -1115971593, now seen corresponding path program 1 times [2021-08-30 17:53:25,269 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:53:25,270 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [445440285] [2021-08-30 17:53:25,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:53:25,270 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:53:25,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:53:25,274 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 17:53:25,275 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-08-30 17:53:25,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:53:25,444 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-30 17:53:25,450 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:53:25,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:53:25,614 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:53:25,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:53:25,706 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:53:25,706 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [445440285] [2021-08-30 17:53:25,706 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [445440285] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 17:53:25,706 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 17:53:25,707 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-08-30 17:53:25,708 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317339357] [2021-08-30 17:53:25,711 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-30 17:53:25,711 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:53:25,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-30 17:53:25,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-30 17:53:25,730 INFO L87 Difference]: Start difference. First operand has 100 states, 55 states have (on average 1.509090909090909) internal successors, (83), 76 states have internal predecessors, (83), 12 states have call successors, (12), 11 states have call predecessors, (12), 11 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-30 17:53:25,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:53:25,808 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2021-08-30 17:53:25,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-30 17:53:25,810 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 18 [2021-08-30 17:53:25,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:53:25,814 INFO L225 Difference]: With dead ends: 29 [2021-08-30 17:53:25,814 INFO L226 Difference]: Without dead ends: 26 [2021-08-30 17:53:25,816 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.69ms TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-30 17:53:25,823 INFO L928 BasicCegarLoop]: 10 mSDtfsCounter, 7 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.35ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.14ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 57.84ms IncrementalHoareTripleChecker+Time [2021-08-30 17:53:25,824 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 58 Invalid, 107 Unknown, 0 Unchecked, 3.14ms Time], IncrementalHoareTripleChecker [1 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 57.84ms Time] [2021-08-30 17:53:25,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-08-30 17:53:25,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2021-08-30 17:53:25,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 16 states have internal predecessors, (18), 5 states have call successors, (5), 5 states have call predecessors, (5), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-08-30 17:53:25,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2021-08-30 17:53:25,848 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 18 [2021-08-30 17:53:25,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:53:25,849 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2021-08-30 17:53:25,849 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-30 17:53:25,849 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2021-08-30 17:53:25,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-08-30 17:53:25,850 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:53:25,850 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:53:25,865 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-08-30 17:53:26,056 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:53:26,057 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-08-30 17:53:26,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:53:26,057 INFO L82 PathProgramCache]: Analyzing trace with hash -235380623, now seen corresponding path program 1 times [2021-08-30 17:53:26,058 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:53:26,058 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2064789943] [2021-08-30 17:53:26,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:53:26,058 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:53:26,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:53:26,060 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 17:53:26,065 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-08-30 17:53:26,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:53:26,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 8 conjunts are in the unsatisfiable core [2021-08-30 17:53:26,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:53:26,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:53:26,374 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:53:26,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:53:26,526 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:53:26,526 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2064789943] [2021-08-30 17:53:26,527 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2064789943] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 17:53:26,527 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 17:53:26,527 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 12 [2021-08-30 17:53:26,527 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289978856] [2021-08-30 17:53:26,528 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-08-30 17:53:26,528 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:53:26,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-08-30 17:53:26,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2021-08-30 17:53:26,528 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand has 13 states, 12 states have (on average 1.8333333333333333) internal successors, (22), 9 states have internal predecessors, (22), 2 states have call successors, (9), 2 states have call predecessors, (9), 6 states have return successors, (6), 6 states have call predecessors, (6), 2 states have call successors, (6) [2021-08-30 17:53:26,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:53:26,685 INFO L93 Difference]: Finished difference Result 37 states and 39 transitions. [2021-08-30 17:53:26,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-30 17:53:26,686 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 1.8333333333333333) internal successors, (22), 9 states have internal predecessors, (22), 2 states have call successors, (9), 2 states have call predecessors, (9), 6 states have return successors, (6), 6 states have call predecessors, (6), 2 states have call successors, (6) Word has length 19 [2021-08-30 17:53:26,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:53:26,687 INFO L225 Difference]: With dead ends: 37 [2021-08-30 17:53:26,687 INFO L226 Difference]: Without dead ends: 37 [2021-08-30 17:53:26,688 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 97.44ms TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2021-08-30 17:53:26,688 INFO L928 BasicCegarLoop]: 10 mSDtfsCounter, 31 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 118.37ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.71ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 145.65ms IncrementalHoareTripleChecker+Time [2021-08-30 17:53:26,689 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 11 Invalid, 232 Unknown, 0 Unchecked, 1.71ms Time], IncrementalHoareTripleChecker [7 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 145.65ms Time] [2021-08-30 17:53:26,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-08-30 17:53:26,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 32. [2021-08-30 17:53:26,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 20 states have internal predecessors, (22), 5 states have call successors, (5), 5 states have call predecessors, (5), 6 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2021-08-30 17:53:26,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2021-08-30 17:53:26,696 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 19 [2021-08-30 17:53:26,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:53:26,696 INFO L470 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2021-08-30 17:53:26,696 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 1.8333333333333333) internal successors, (22), 9 states have internal predecessors, (22), 2 states have call successors, (9), 2 states have call predecessors, (9), 6 states have return successors, (6), 6 states have call predecessors, (6), 2 states have call successors, (6) [2021-08-30 17:53:26,696 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2021-08-30 17:53:26,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-08-30 17:53:26,698 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:53:26,698 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:53:26,707 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-08-30 17:53:26,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:53:26,907 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-08-30 17:53:26,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:53:26,908 INFO L82 PathProgramCache]: Analyzing trace with hash 1293135673, now seen corresponding path program 1 times [2021-08-30 17:53:26,908 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:53:26,908 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1956423375] [2021-08-30 17:53:26,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:53:26,908 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:53:26,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:53:26,909 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 17:53:26,910 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-08-30 17:53:27,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:53:27,013 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-30 17:53:27,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:53:27,051 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-08-30 17:53:27,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:53:27,105 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:53:27,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:53:27,211 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:53:27,211 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1956423375] [2021-08-30 17:53:27,211 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1956423375] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 17:53:27,211 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 17:53:27,211 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-08-30 17:53:27,211 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829741624] [2021-08-30 17:53:27,212 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-30 17:53:27,212 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:53:27,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-30 17:53:27,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-30 17:53:27,213 INFO L87 Difference]: Start difference. First operand 32 states and 33 transitions. Second operand has 7 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-30 17:53:27,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:53:27,275 INFO L93 Difference]: Finished difference Result 35 states and 36 transitions. [2021-08-30 17:53:27,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-30 17:53:27,276 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 20 [2021-08-30 17:53:27,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:53:27,276 INFO L225 Difference]: With dead ends: 35 [2021-08-30 17:53:27,276 INFO L226 Difference]: Without dead ends: 35 [2021-08-30 17:53:27,277 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 29 SyntacticMatches, 5 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 38.88ms TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-30 17:53:27,277 INFO L928 BasicCegarLoop]: 9 mSDtfsCounter, 0 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 47.36ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.99ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 57.79ms IncrementalHoareTripleChecker+Time [2021-08-30 17:53:27,278 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 46 Invalid, 109 Unknown, 0 Unchecked, 0.99ms Time], IncrementalHoareTripleChecker [0 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 57.79ms Time] [2021-08-30 17:53:27,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-08-30 17:53:27,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2021-08-30 17:53:27,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 23 states have internal predecessors, (25), 5 states have call successors, (5), 5 states have call predecessors, (5), 6 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2021-08-30 17:53:27,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 36 transitions. [2021-08-30 17:53:27,281 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 36 transitions. Word has length 20 [2021-08-30 17:53:27,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:53:27,282 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 36 transitions. [2021-08-30 17:53:27,282 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-30 17:53:27,282 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions. [2021-08-30 17:53:27,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-08-30 17:53:27,282 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:53:27,283 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:53:27,297 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-08-30 17:53:27,489 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:53:27,489 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-08-30 17:53:27,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:53:27,490 INFO L82 PathProgramCache]: Analyzing trace with hash -503815686, now seen corresponding path program 1 times [2021-08-30 17:53:27,490 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:53:27,490 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1522379756] [2021-08-30 17:53:27,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:53:27,490 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:53:27,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:53:27,491 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 17:53:27,491 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-08-30 17:53:27,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:53:27,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 11 conjunts are in the unsatisfiable core [2021-08-30 17:53:27,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:53:27,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:53:27,671 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:53:27,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:53:27,775 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:53:27,775 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1522379756] [2021-08-30 17:53:27,776 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1522379756] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 17:53:27,776 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 17:53:27,776 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-08-30 17:53:27,776 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901418795] [2021-08-30 17:53:27,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-30 17:53:27,776 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:53:27,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-30 17:53:27,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-30 17:53:27,778 INFO L87 Difference]: Start difference. First operand 35 states and 36 transitions. Second operand has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-30 17:53:27,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:53:27,832 INFO L93 Difference]: Finished difference Result 33 states and 33 transitions. [2021-08-30 17:53:27,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-30 17:53:27,833 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 20 [2021-08-30 17:53:27,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:53:27,834 INFO L225 Difference]: With dead ends: 33 [2021-08-30 17:53:27,834 INFO L226 Difference]: Without dead ends: 33 [2021-08-30 17:53:27,834 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 23.54ms TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-30 17:53:27,835 INFO L928 BasicCegarLoop]: 11 mSDtfsCounter, 2 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.42ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.02ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 49.11ms IncrementalHoareTripleChecker+Time [2021-08-30 17:53:27,835 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 64 Invalid, 114 Unknown, 0 Unchecked, 1.02ms Time], IncrementalHoareTripleChecker [0 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 49.11ms Time] [2021-08-30 17:53:27,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-08-30 17:53:27,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 31. [2021-08-30 17:53:27,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 19 states have (on average 1.0526315789473684) internal successors, (20), 19 states have internal predecessors, (20), 5 states have call successors, (5), 5 states have call predecessors, (5), 6 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2021-08-30 17:53:27,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 31 transitions. [2021-08-30 17:53:27,838 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 31 transitions. Word has length 20 [2021-08-30 17:53:27,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:53:27,838 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 31 transitions. [2021-08-30 17:53:27,838 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-30 17:53:27,839 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2021-08-30 17:53:27,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-08-30 17:53:27,839 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:53:27,839 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:53:27,847 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-08-30 17:53:28,043 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:53:28,044 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)] === [2021-08-30 17:53:28,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:53:28,044 INFO L82 PathProgramCache]: Analyzing trace with hash -503568140, now seen corresponding path program 1 times [2021-08-30 17:53:28,045 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:53:28,045 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1921671146] [2021-08-30 17:53:28,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:53:28,045 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:53:28,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:53:28,046 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 17:53:28,047 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-08-30 17:53:28,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:53:28,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 8 conjunts are in the unsatisfiable core [2021-08-30 17:53:28,143 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:53:28,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:53:28,176 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:53:28,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:53:28,269 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:53:28,269 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1921671146] [2021-08-30 17:53:28,270 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1921671146] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 17:53:28,270 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 17:53:28,270 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-08-30 17:53:28,270 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934796704] [2021-08-30 17:53:28,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-30 17:53:28,270 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:53:28,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-30 17:53:28,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-30 17:53:28,271 INFO L87 Difference]: Start difference. First operand 31 states and 31 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-08-30 17:53:28,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:53:28,303 INFO L93 Difference]: Finished difference Result 34 states and 33 transitions. [2021-08-30 17:53:28,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-30 17:53:28,304 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 20 [2021-08-30 17:53:28,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:53:28,305 INFO L225 Difference]: With dead ends: 34 [2021-08-30 17:53:28,305 INFO L226 Difference]: Without dead ends: 24 [2021-08-30 17:53:28,306 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.34ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-30 17:53:28,307 INFO L928 BasicCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.74ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.30ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.65ms IncrementalHoareTripleChecker+Time [2021-08-30 17:53:28,309 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 9 Invalid, 40 Unknown, 0 Unchecked, 0.30ms Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 27.65ms Time] [2021-08-30 17:53:28,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2021-08-30 17:53:28,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2021-08-30 17:53:28,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 14 states have (on average 1.0) internal successors, (14), 14 states have internal predecessors, (14), 5 states have call successors, (5), 5 states have call predecessors, (5), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-08-30 17:53:28,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 23 transitions. [2021-08-30 17:53:28,316 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 23 transitions. Word has length 20 [2021-08-30 17:53:28,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:53:28,316 INFO L470 AbstractCegarLoop]: Abstraction has 24 states and 23 transitions. [2021-08-30 17:53:28,316 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-08-30 17:53:28,316 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 23 transitions. [2021-08-30 17:53:28,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-08-30 17:53:28,317 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:53:28,317 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:53:28,328 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-08-30 17:53:28,523 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:53:28,524 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)] === [2021-08-30 17:53:28,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:53:28,524 INFO L82 PathProgramCache]: Analyzing trace with hash -2051414223, now seen corresponding path program 1 times [2021-08-30 17:53:28,524 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:53:28,524 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1565262649] [2021-08-30 17:53:28,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:53:28,525 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:53:28,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:53:28,525 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 17:53:28,528 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-08-30 17:53:28,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:53:28,628 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 16 conjunts are in the unsatisfiable core [2021-08-30 17:53:28,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:53:28,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:53:28,772 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:53:32,950 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:53:32,950 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1565262649] [2021-08-30 17:53:32,950 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-30 17:53:32,950 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [944465428] [2021-08-30 17:53:32,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:53:32,950 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-08-30 17:53:32,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2021-08-30 17:53:32,954 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) [2021-08-30 17:53:32,957 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2021-08-30 17:53:33,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:53:33,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2021-08-30 17:53:33,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:53:33,148 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-08-30 17:53:33,150 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 26 treesize of output 29 [2021-08-30 17:53:37,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:53:37,400 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:53:43,515 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-30 17:53:43,516 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1041402696] [2021-08-30 17:53:43,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:53:43,516 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-30 17:53:43,516 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-30 17:53:43,517 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) [2021-08-30 17:53:43,517 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-08-30 17:53:43,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:53:43,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 15 conjunts are in the unsatisfiable core [2021-08-30 17:53:43,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:53:43,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:53:43,724 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:53:49,865 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-30 17:53:49,865 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-08-30 17:53:49,865 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-08-30 17:53:49,865 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-08-30 17:53:49,865 INFO L627 BasicCegarLoop]: Counterexample might be feasible [2021-08-30 17:53:49,868 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK (73 of 74 remaining) [2021-08-30 17:53:49,869 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION (72 of 74 remaining) [2021-08-30 17:53:49,870 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION (71 of 74 remaining) [2021-08-30 17:53:49,870 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION (70 of 74 remaining) [2021-08-30 17:53:49,870 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION (69 of 74 remaining) [2021-08-30 17:53:49,870 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION (68 of 74 remaining) [2021-08-30 17:53:49,870 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION (67 of 74 remaining) [2021-08-30 17:53:49,870 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION (66 of 74 remaining) [2021-08-30 17:53:49,870 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION (65 of 74 remaining) [2021-08-30 17:53:49,870 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION (64 of 74 remaining) [2021-08-30 17:53:49,871 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION (63 of 74 remaining) [2021-08-30 17:53:49,871 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION (62 of 74 remaining) [2021-08-30 17:53:49,871 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION (61 of 74 remaining) [2021-08-30 17:53:49,871 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION (60 of 74 remaining) [2021-08-30 17:53:49,871 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION (59 of 74 remaining) [2021-08-30 17:53:49,871 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION (58 of 74 remaining) [2021-08-30 17:53:49,871 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION (57 of 74 remaining) [2021-08-30 17:53:49,871 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION (56 of 74 remaining) [2021-08-30 17:53:49,871 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION (55 of 74 remaining) [2021-08-30 17:53:49,871 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION (54 of 74 remaining) [2021-08-30 17:53:49,872 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION (53 of 74 remaining) [2021-08-30 17:53:49,872 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION (52 of 74 remaining) [2021-08-30 17:53:49,872 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION (51 of 74 remaining) [2021-08-30 17:53:49,872 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION (50 of 74 remaining) [2021-08-30 17:53:49,872 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION (49 of 74 remaining) [2021-08-30 17:53:49,872 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION (48 of 74 remaining) [2021-08-30 17:53:49,872 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION (47 of 74 remaining) [2021-08-30 17:53:49,872 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION (46 of 74 remaining) [2021-08-30 17:53:49,872 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION (45 of 74 remaining) [2021-08-30 17:53:49,873 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION (44 of 74 remaining) [2021-08-30 17:53:49,873 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION (43 of 74 remaining) [2021-08-30 17:53:49,873 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION (42 of 74 remaining) [2021-08-30 17:53:49,873 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION (41 of 74 remaining) [2021-08-30 17:53:49,873 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION (40 of 74 remaining) [2021-08-30 17:53:49,873 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION (39 of 74 remaining) [2021-08-30 17:53:49,873 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION (38 of 74 remaining) [2021-08-30 17:53:49,873 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION (37 of 74 remaining) [2021-08-30 17:53:49,873 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION (36 of 74 remaining) [2021-08-30 17:53:49,874 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION (35 of 74 remaining) [2021-08-30 17:53:49,874 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION (34 of 74 remaining) [2021-08-30 17:53:49,874 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION (33 of 74 remaining) [2021-08-30 17:53:49,874 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION (32 of 74 remaining) [2021-08-30 17:53:49,874 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION (31 of 74 remaining) [2021-08-30 17:53:49,874 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE (30 of 74 remaining) [2021-08-30 17:53:49,874 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE (29 of 74 remaining) [2021-08-30 17:53:49,874 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE (28 of 74 remaining) [2021-08-30 17:53:49,875 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE (27 of 74 remaining) [2021-08-30 17:53:49,875 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE (26 of 74 remaining) [2021-08-30 17:53:49,875 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE (25 of 74 remaining) [2021-08-30 17:53:49,875 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION (24 of 74 remaining) [2021-08-30 17:53:49,875 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION (23 of 74 remaining) [2021-08-30 17:53:49,875 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION (22 of 74 remaining) [2021-08-30 17:53:49,875 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION (21 of 74 remaining) [2021-08-30 17:53:49,875 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION (20 of 74 remaining) [2021-08-30 17:53:49,875 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION (19 of 74 remaining) [2021-08-30 17:53:49,876 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION (18 of 74 remaining) [2021-08-30 17:53:49,876 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION (17 of 74 remaining) [2021-08-30 17:53:49,876 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE (16 of 74 remaining) [2021-08-30 17:53:49,876 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE (15 of 74 remaining) [2021-08-30 17:53:49,876 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE (14 of 74 remaining) [2021-08-30 17:53:49,876 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE (13 of 74 remaining) [2021-08-30 17:53:49,876 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE (12 of 74 remaining) [2021-08-30 17:53:49,876 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE (11 of 74 remaining) [2021-08-30 17:53:49,877 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION (10 of 74 remaining) [2021-08-30 17:53:49,877 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION (9 of 74 remaining) [2021-08-30 17:53:49,877 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION (8 of 74 remaining) [2021-08-30 17:53:49,877 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION (7 of 74 remaining) [2021-08-30 17:53:49,877 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION (6 of 74 remaining) [2021-08-30 17:53:49,877 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION (5 of 74 remaining) [2021-08-30 17:53:49,877 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION (4 of 74 remaining) [2021-08-30 17:53:49,877 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION (3 of 74 remaining) [2021-08-30 17:53:49,877 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE (2 of 74 remaining) [2021-08-30 17:53:49,878 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE (1 of 74 remaining) [2021-08-30 17:53:49,878 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE (0 of 74 remaining) [2021-08-30 17:53:49,897 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-08-30 17:53:50,097 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2021-08-30 17:53:50,299 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-08-30 17:53:50,493 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 [2021-08-30 17:53:50,497 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-30 17:53:50,498 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-08-30 17:53:50,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 05:53:50 BoogieIcfgContainer [2021-08-30 17:53:50,507 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-30 17:53:50,507 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-30 17:53:50,507 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-30 17:53:50,508 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-30 17:53:50,508 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 05:53:25" (3/4) ... [2021-08-30 17:53:50,509 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-30 17:53:50,510 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-30 17:53:50,510 INFO L158 Benchmark]: Toolchain (without parser) took 26447.26ms. Allocated memory was 60.8MB in the beginning and 98.6MB in the end (delta: 37.7MB). Free memory was 38.4MB in the beginning and 42.5MB in the end (delta: -4.1MB). Peak memory consumption was 33.9MB. Max. memory is 16.1GB. [2021-08-30 17:53:50,510 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 60.8MB. Free memory was 42.9MB in the beginning and 42.8MB in the end (delta: 38.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-30 17:53:50,510 INFO L158 Benchmark]: CACSL2BoogieTranslator took 400.06ms. Allocated memory is still 60.8MB. Free memory was 38.1MB in the beginning and 27.9MB in the end (delta: 10.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-08-30 17:53:50,511 INFO L158 Benchmark]: Boogie Preprocessor took 92.23ms. Allocated memory was 60.8MB in the beginning and 75.5MB in the end (delta: 14.7MB). Free memory was 27.9MB in the beginning and 55.7MB in the end (delta: -27.9MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. [2021-08-30 17:53:50,511 INFO L158 Benchmark]: RCFGBuilder took 619.00ms. Allocated memory is still 75.5MB. Free memory was 55.7MB in the beginning and 40.7MB in the end (delta: 15.0MB). Peak memory consumption was 23.7MB. Max. memory is 16.1GB. [2021-08-30 17:53:50,511 INFO L158 Benchmark]: TraceAbstraction took 25328.64ms. Allocated memory was 75.5MB in the beginning and 98.6MB in the end (delta: 23.1MB). Free memory was 40.3MB in the beginning and 42.5MB in the end (delta: -2.2MB). Peak memory consumption was 19.5MB. Max. memory is 16.1GB. [2021-08-30 17:53:50,511 INFO L158 Benchmark]: Witness Printer took 2.24ms. Allocated memory is still 98.6MB. Free memory is still 42.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-08-30 17:53:50,513 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 60.8MB. Free memory was 42.9MB in the beginning and 42.8MB in the end (delta: 38.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 400.06ms. Allocated memory is still 60.8MB. Free memory was 38.1MB in the beginning and 27.9MB in the end (delta: 10.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 92.23ms. Allocated memory was 60.8MB in the beginning and 75.5MB in the end (delta: 14.7MB). Free memory was 27.9MB in the beginning and 55.7MB in the end (delta: -27.9MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. * RCFGBuilder took 619.00ms. Allocated memory is still 75.5MB. Free memory was 55.7MB in the beginning and 40.7MB in the end (delta: 15.0MB). Peak memory consumption was 23.7MB. Max. memory is 16.1GB. * TraceAbstraction took 25328.64ms. Allocated memory was 75.5MB in the beginning and 98.6MB in the end (delta: 23.1MB). Free memory was 40.3MB in the beginning and 42.5MB in the end (delta: -2.2MB). Peak memory consumption was 19.5MB. Max. memory is 16.1GB. * Witness Printer took 2.24ms. Allocated memory is still 98.6MB. Free memory is still 42.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 764]: 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 764. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L765] CALL entry_point() [L761] CALL, EXPR h_safe() [L758] CALL, EXPR ldv_malloc(sizeof(int)) [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L758] RET, EXPR ldv_malloc(sizeof(int)) [L758] return (int *)ldv_malloc(sizeof(int)); [L761] RET, EXPR h_safe() [L761] int *p = h_safe(); [L762] COND TRUE \read(*p) [L762] free(p) [L762] free(p) [L762] free(p) [L765] 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: 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. - 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. - StatisticsResult: Ultimate Automizer benchmark data CFG has 48 procedures, 340 locations, 74 error locations. Started 1 CEGAR loops. OverallTime: 25274.16ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 21.29ms, AutomataDifference: 443.01ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 0.00ms, InitialAbstractionConstructionTime: 10.12ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 45 SdHoareTripleChecker+Valid, 338.04ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 40 mSDsluCounter, 188 SdHoareTripleChecker+Invalid, 270.25ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 393 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 593 IncrementalHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 48 mSDtfsCounter, 593 mSolverCounterSat, 7.17ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 189 GetRequests, 157 SyntacticMatches, 5 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 181.89ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=100occurred in iteration=0, InterpolantAutomatonStates: 37, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 30.42ms AutomataMinimizationTime, 5 MinimizatonAttempts, 7 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 45.10ms SsaConstructionTime, 81.78ms SatisfiabilityAnalysisTime, 1121.50ms InterpolantComputationTime, 97 NumberOfCodeBlocks, 97 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 184 ConstructedInterpolants, 0 QuantifiedInterpolants, 605 SizeOfPredicates, 0 NumberOfNonLiveVariables, 367 ConjunctsInSsa, 39 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 [2021-08-30 17:53:50,536 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...