./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test14.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1f288-a6f9-40e5-83f6-8c156c473603/bin/uautomizer-tBqnrhUYjU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1f288-a6f9-40e5-83f6-8c156c473603/bin/uautomizer-tBqnrhUYjU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1f288-a6f9-40e5-83f6-8c156c473603/bin/uautomizer-tBqnrhUYjU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1f288-a6f9-40e5-83f6-8c156c473603/bin/uautomizer-tBqnrhUYjU/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test14.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1f288-a6f9-40e5-83f6-8c156c473603/bin/uautomizer-tBqnrhUYjU/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1f288-a6f9-40e5-83f6-8c156c473603/bin/uautomizer-tBqnrhUYjU --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 57e88052da463d5b7254d94e89c581ee420b273cd207f71cae5120687b870089 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-02 23:15:27,183 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-02 23:15:27,186 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-02 23:15:27,251 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-02 23:15:27,252 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-02 23:15:27,256 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-02 23:15:27,258 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-02 23:15:27,260 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-02 23:15:27,262 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-02 23:15:27,262 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-02 23:15:27,264 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-02 23:15:27,265 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-02 23:15:27,266 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-02 23:15:27,267 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-02 23:15:27,269 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-02 23:15:27,271 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-02 23:15:27,272 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-02 23:15:27,273 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-02 23:15:27,276 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-02 23:15:27,278 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-02 23:15:27,281 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-02 23:15:27,282 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-02 23:15:27,284 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-02 23:15:27,285 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-02 23:15:27,289 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-02 23:15:27,290 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-02 23:15:27,290 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-02 23:15:27,292 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-02 23:15:27,292 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-02 23:15:27,294 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-02 23:15:27,294 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-02 23:15:27,295 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-02 23:15:27,297 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-02 23:15:27,298 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-02 23:15:27,299 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-02 23:15:27,299 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-02 23:15:27,300 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-02 23:15:27,301 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-02 23:15:27,301 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-02 23:15:27,302 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-02 23:15:27,303 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-02 23:15:27,304 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1f288-a6f9-40e5-83f6-8c156c473603/bin/uautomizer-tBqnrhUYjU/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-11-02 23:15:27,330 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-02 23:15:27,330 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-02 23:15:27,331 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-02 23:15:27,331 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-02 23:15:27,332 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-02 23:15:27,332 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-02 23:15:27,332 INFO L138 SettingsManager]: * Use SBE=true [2021-11-02 23:15:27,333 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-02 23:15:27,333 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-02 23:15:27,333 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-02 23:15:27,333 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-02 23:15:27,334 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-02 23:15:27,334 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-02 23:15:27,334 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-02 23:15:27,334 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-02 23:15:27,334 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-02 23:15:27,335 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-02 23:15:27,335 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-02 23:15:27,335 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-02 23:15:27,335 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-02 23:15:27,335 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-02 23:15:27,336 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-02 23:15:27,336 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-02 23:15:27,336 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 23:15:27,336 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-02 23:15:27,337 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-02 23:15:27,337 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-02 23:15:27,337 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-02 23:15:27,337 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-02 23:15:27,337 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1f288-a6f9-40e5-83f6-8c156c473603/bin/uautomizer-tBqnrhUYjU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1f288-a6f9-40e5-83f6-8c156c473603/bin/uautomizer-tBqnrhUYjU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 57e88052da463d5b7254d94e89c581ee420b273cd207f71cae5120687b870089 [2021-11-02 23:15:27,593 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-02 23:15:27,629 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-02 23:15:27,632 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-02 23:15:27,633 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-02 23:15:27,634 INFO L275 PluginConnector]: CDTParser initialized [2021-11-02 23:15:27,636 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1f288-a6f9-40e5-83f6-8c156c473603/bin/uautomizer-tBqnrhUYjU/../../sv-benchmarks/c/ldv-memsafety/memleaks_test14.i [2021-11-02 23:15:27,712 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1f288-a6f9-40e5-83f6-8c156c473603/bin/uautomizer-tBqnrhUYjU/data/6a626b82e/bdea7828aeba484b809adfdaeb4dc6ef/FLAGa6052ecc0 [2021-11-02 23:15:28,368 INFO L306 CDTParser]: Found 1 translation units. [2021-11-02 23:15:28,369 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1f288-a6f9-40e5-83f6-8c156c473603/sv-benchmarks/c/ldv-memsafety/memleaks_test14.i [2021-11-02 23:15:28,399 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1f288-a6f9-40e5-83f6-8c156c473603/bin/uautomizer-tBqnrhUYjU/data/6a626b82e/bdea7828aeba484b809adfdaeb4dc6ef/FLAGa6052ecc0 [2021-11-02 23:15:28,613 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1f288-a6f9-40e5-83f6-8c156c473603/bin/uautomizer-tBqnrhUYjU/data/6a626b82e/bdea7828aeba484b809adfdaeb4dc6ef [2021-11-02 23:15:28,616 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-02 23:15:28,617 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-11-02 23:15:28,619 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-02 23:15:28,619 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-02 23:15:28,623 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-02 23:15:28,624 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:15:28" (1/1) ... [2021-11-02 23:15:28,625 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ec13d15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:15:28, skipping insertion in model container [2021-11-02 23:15:28,626 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:15:28" (1/1) ... [2021-11-02 23:15:28,636 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-02 23:15:28,711 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-02 23:15:29,264 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 23:15:29,282 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) [2021-11-02 23:15:29,283 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@71b395a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:15:29, skipping insertion in model container [2021-11-02 23:15:29,283 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-02 23:15:29,284 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-11-02 23:15:29,286 INFO L168 Benchmark]: Toolchain (without parser) took 667.36 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 50.9 MB in the beginning and 78.5 MB in the end (delta: -27.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-11-02 23:15:29,287 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 88.1 MB. Free memory is still 69.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-02 23:15:29,288 INFO L168 Benchmark]: CACSL2BoogieTranslator took 664.50 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 50.8 MB in the beginning and 78.5 MB in the end (delta: -27.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-11-02 23:15:29,290 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 88.1 MB. Free memory is still 69.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 664.50 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 50.8 MB in the beginning and 78.5 MB in the end (delta: -27.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1f288-a6f9-40e5-83f6-8c156c473603/bin/uautomizer-tBqnrhUYjU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1f288-a6f9-40e5-83f6-8c156c473603/bin/uautomizer-tBqnrhUYjU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1f288-a6f9-40e5-83f6-8c156c473603/bin/uautomizer-tBqnrhUYjU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1f288-a6f9-40e5-83f6-8c156c473603/bin/uautomizer-tBqnrhUYjU/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test14.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1f288-a6f9-40e5-83f6-8c156c473603/bin/uautomizer-tBqnrhUYjU/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1f288-a6f9-40e5-83f6-8c156c473603/bin/uautomizer-tBqnrhUYjU --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 57e88052da463d5b7254d94e89c581ee420b273cd207f71cae5120687b870089 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-02 23:15:31,694 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-02 23:15:31,698 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-02 23:15:31,761 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-02 23:15:31,762 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-02 23:15:31,766 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-02 23:15:31,768 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-02 23:15:31,774 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-02 23:15:31,778 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-02 23:15:31,783 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-02 23:15:31,785 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-02 23:15:31,787 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-02 23:15:31,788 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-02 23:15:31,790 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-02 23:15:31,793 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-02 23:15:31,797 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-02 23:15:31,799 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-02 23:15:31,800 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-02 23:15:31,803 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-02 23:15:31,811 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-02 23:15:31,813 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-02 23:15:31,814 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-02 23:15:31,817 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-02 23:15:31,819 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-02 23:15:31,829 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-02 23:15:31,829 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-02 23:15:31,830 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-02 23:15:31,832 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-02 23:15:31,832 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-02 23:15:31,834 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-02 23:15:31,834 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-02 23:15:31,835 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-02 23:15:31,837 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-02 23:15:31,838 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-02 23:15:31,840 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-02 23:15:31,840 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-02 23:15:31,841 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-02 23:15:31,841 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-02 23:15:31,841 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-02 23:15:31,843 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-02 23:15:31,844 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-02 23:15:31,845 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1f288-a6f9-40e5-83f6-8c156c473603/bin/uautomizer-tBqnrhUYjU/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-11-02 23:15:31,888 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-02 23:15:31,888 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-02 23:15:31,889 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-02 23:15:31,889 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-02 23:15:31,891 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-02 23:15:31,892 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-02 23:15:31,892 INFO L138 SettingsManager]: * Use SBE=true [2021-11-02 23:15:31,892 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-02 23:15:31,892 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-02 23:15:31,893 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-02 23:15:31,894 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-02 23:15:31,894 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-02 23:15:31,894 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-02 23:15:31,894 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-02 23:15:31,895 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-02 23:15:31,895 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-02 23:15:31,895 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-02 23:15:31,896 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-02 23:15:31,896 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-02 23:15:31,896 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-02 23:15:31,896 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-02 23:15:31,896 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-02 23:15:31,897 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-02 23:15:31,897 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-02 23:15:31,897 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-02 23:15:31,897 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 23:15:31,898 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-02 23:15:31,898 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-02 23:15:31,898 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-02 23:15:31,899 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-02 23:15:31,899 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-02 23:15:31,899 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-02 23:15:31,900 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1f288-a6f9-40e5-83f6-8c156c473603/bin/uautomizer-tBqnrhUYjU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1f288-a6f9-40e5-83f6-8c156c473603/bin/uautomizer-tBqnrhUYjU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 57e88052da463d5b7254d94e89c581ee420b273cd207f71cae5120687b870089 [2021-11-02 23:15:32,273 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-02 23:15:32,294 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-02 23:15:32,297 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-02 23:15:32,299 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-02 23:15:32,300 INFO L275 PluginConnector]: CDTParser initialized [2021-11-02 23:15:32,301 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1f288-a6f9-40e5-83f6-8c156c473603/bin/uautomizer-tBqnrhUYjU/../../sv-benchmarks/c/ldv-memsafety/memleaks_test14.i [2021-11-02 23:15:32,375 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1f288-a6f9-40e5-83f6-8c156c473603/bin/uautomizer-tBqnrhUYjU/data/2ddb512fa/00962d28368446d7bf2c512222929a42/FLAG8657ab9e3 [2021-11-02 23:15:33,113 INFO L306 CDTParser]: Found 1 translation units. [2021-11-02 23:15:33,114 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1f288-a6f9-40e5-83f6-8c156c473603/sv-benchmarks/c/ldv-memsafety/memleaks_test14.i [2021-11-02 23:15:33,136 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1f288-a6f9-40e5-83f6-8c156c473603/bin/uautomizer-tBqnrhUYjU/data/2ddb512fa/00962d28368446d7bf2c512222929a42/FLAG8657ab9e3 [2021-11-02 23:15:33,330 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1f288-a6f9-40e5-83f6-8c156c473603/bin/uautomizer-tBqnrhUYjU/data/2ddb512fa/00962d28368446d7bf2c512222929a42 [2021-11-02 23:15:33,332 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-02 23:15:33,334 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-11-02 23:15:33,335 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-02 23:15:33,335 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-02 23:15:33,342 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-02 23:15:33,343 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:15:33" (1/1) ... [2021-11-02 23:15:33,344 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@321767e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:15:33, skipping insertion in model container [2021-11-02 23:15:33,344 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:15:33" (1/1) ... [2021-11-02 23:15:33,351 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-02 23:15:33,425 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-02 23:15:33,975 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 23:15:33,998 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-02 23:15:34,010 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-02 23:15:34,074 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 23:15:34,097 INFO L203 MainTranslator]: Completed pre-run [2021-11-02 23:15:34,159 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 23:15:34,215 INFO L208 MainTranslator]: Completed translation [2021-11-02 23:15:34,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:15:34 WrapperNode [2021-11-02 23:15:34,216 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-02 23:15:34,217 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-02 23:15:34,217 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-02 23:15:34,217 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-02 23:15:34,230 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:15:34" (1/1) ... [2021-11-02 23:15:34,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:15:34" (1/1) ... [2021-11-02 23:15:34,255 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:15:34" (1/1) ... [2021-11-02 23:15:34,256 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:15:34" (1/1) ... [2021-11-02 23:15:34,296 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:15:34" (1/1) ... [2021-11-02 23:15:34,303 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:15:34" (1/1) ... [2021-11-02 23:15:34,314 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:15:34" (1/1) ... [2021-11-02 23:15:34,326 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-02 23:15:34,339 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-02 23:15:34,339 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-02 23:15:34,340 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-02 23:15:34,341 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:15:34" (1/1) ... [2021-11-02 23:15:34,353 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 23:15:34,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1f288-a6f9-40e5-83f6-8c156c473603/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:15:34,379 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1f288-a6f9-40e5-83f6-8c156c473603/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-02 23:15:34,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1f288-a6f9-40e5-83f6-8c156c473603/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-02 23:15:34,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-11-02 23:15:34,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-02 23:15:34,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-02 23:15:34,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-11-02 23:15:34,428 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-11-02 23:15:34,428 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-11-02 23:15:34,428 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-11-02 23:15:34,428 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-11-02 23:15:34,429 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-11-02 23:15:34,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-11-02 23:15:34,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-11-02 23:15:34,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-02 23:15:34,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-02 23:15:34,430 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-11-02 23:15:34,436 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-11-02 23:15:34,437 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-11-02 23:15:34,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-11-02 23:15:34,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-11-02 23:15:34,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-11-02 23:15:34,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-11-02 23:15:34,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-11-02 23:15:34,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-11-02 23:15:34,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-11-02 23:15:34,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-11-02 23:15:34,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-11-02 23:15:34,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-02 23:15:34,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-11-02 23:15:34,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-11-02 23:15:34,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-11-02 23:15:34,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-11-02 23:15:34,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-11-02 23:15:34,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-11-02 23:15:34,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-11-02 23:15:34,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-11-02 23:15:34,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-11-02 23:15:34,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-11-02 23:15:34,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-11-02 23:15:34,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-11-02 23:15:34,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-11-02 23:15:34,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-11-02 23:15:34,442 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-11-02 23:15:34,442 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-11-02 23:15:34,442 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_14 [2021-11-02 23:15:34,443 INFO L138 BoogieDeclarations]: Found implementation of procedure free_14 [2021-11-02 23:15:34,443 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-11-02 23:15:34,443 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-11-02 23:15:34,443 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-02 23:15:34,444 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-02 23:15:34,444 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-02 23:15:34,445 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-11-02 23:15:34,445 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-11-02 23:15:34,445 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-11-02 23:15:34,445 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-11-02 23:15:34,446 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-11-02 23:15:34,446 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-11-02 23:15:34,446 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-11-02 23:15:34,446 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-11-02 23:15:34,446 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-11-02 23:15:34,447 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-11-02 23:15:34,447 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-11-02 23:15:34,447 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-11-02 23:15:34,447 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-11-02 23:15:34,449 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-11-02 23:15:34,449 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-11-02 23:15:34,450 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-11-02 23:15:34,450 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-11-02 23:15:34,450 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-11-02 23:15:34,450 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-11-02 23:15:34,451 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-11-02 23:15:34,451 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-11-02 23:15:34,451 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-11-02 23:15:34,451 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-11-02 23:15:34,452 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-11-02 23:15:34,452 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-11-02 23:15:34,452 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-11-02 23:15:34,452 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-11-02 23:15:34,452 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-11-02 23:15:34,452 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-11-02 23:15:34,452 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-11-02 23:15:34,453 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-11-02 23:15:34,453 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-11-02 23:15:34,453 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-11-02 23:15:34,453 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-11-02 23:15:34,453 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-11-02 23:15:34,453 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-11-02 23:15:34,453 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-11-02 23:15:34,454 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-11-02 23:15:34,454 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-11-02 23:15:34,454 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-11-02 23:15:34,454 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-11-02 23:15:34,454 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-11-02 23:15:34,454 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-11-02 23:15:34,454 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-11-02 23:15:34,455 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-11-02 23:15:34,455 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-11-02 23:15:34,455 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-11-02 23:15:34,455 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-11-02 23:15:34,455 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-11-02 23:15:34,455 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-11-02 23:15:34,455 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-11-02 23:15:34,456 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-11-02 23:15:34,456 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-11-02 23:15:34,456 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-11-02 23:15:34,457 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-11-02 23:15:34,457 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-11-02 23:15:34,457 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-11-02 23:15:34,457 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-11-02 23:15:34,457 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-11-02 23:15:34,457 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-11-02 23:15:34,457 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-11-02 23:15:34,458 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-11-02 23:15:34,458 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-11-02 23:15:34,458 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-11-02 23:15:34,458 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-11-02 23:15:34,458 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-11-02 23:15:34,458 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-11-02 23:15:34,458 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-11-02 23:15:34,459 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-11-02 23:15:34,459 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-11-02 23:15:34,460 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-11-02 23:15:34,460 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-11-02 23:15:34,460 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-11-02 23:15:34,461 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-11-02 23:15:34,462 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-11-02 23:15:34,464 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-11-02 23:15:34,465 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-11-02 23:15:34,465 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-11-02 23:15:34,465 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-11-02 23:15:34,465 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-11-02 23:15:34,466 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-11-02 23:15:34,467 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-11-02 23:15:34,467 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-11-02 23:15:34,467 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-11-02 23:15:34,473 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-11-02 23:15:34,473 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-11-02 23:15:34,473 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-11-02 23:15:34,474 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-11-02 23:15:34,474 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-11-02 23:15:34,474 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-11-02 23:15:34,474 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-11-02 23:15:34,474 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-11-02 23:15:34,474 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-11-02 23:15:34,474 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-11-02 23:15:34,475 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-11-02 23:15:34,475 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-11-02 23:15:34,475 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-11-02 23:15:34,475 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-11-02 23:15:34,475 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-11-02 23:15:34,475 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-11-02 23:15:34,475 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-11-02 23:15:34,475 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-11-02 23:15:34,476 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-11-02 23:15:34,476 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-11-02 23:15:34,476 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-11-02 23:15:34,476 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-11-02 23:15:34,476 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-11-02 23:15:34,476 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-02 23:15:34,476 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-11-02 23:15:34,477 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-11-02 23:15:34,477 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-11-02 23:15:34,477 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-11-02 23:15:34,477 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-11-02 23:15:34,477 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-02 23:15:34,477 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-02 23:15:34,477 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-02 23:15:34,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-02 23:15:34,478 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-11-02 23:15:34,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-02 23:15:34,478 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-11-02 23:15:34,478 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-11-02 23:15:34,478 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-11-02 23:15:34,478 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-02 23:15:34,478 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-11-02 23:15:34,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-11-02 23:15:34,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-11-02 23:15:34,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-11-02 23:15:34,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-02 23:15:34,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-11-02 23:15:34,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-02 23:15:34,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-11-02 23:15:34,480 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-11-02 23:15:34,480 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-11-02 23:15:34,480 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-02 23:15:34,480 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-11-02 23:15:34,480 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-02 23:15:34,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-02 23:15:34,480 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-11-02 23:15:34,480 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-11-02 23:15:34,481 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-02 23:15:34,481 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-11-02 23:15:34,481 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-11-02 23:15:34,481 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-11-02 23:15:34,481 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-11-02 23:15:34,481 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-11-02 23:15:34,481 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-11-02 23:15:34,482 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-11-02 23:15:34,482 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-11-02 23:15:34,482 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-11-02 23:15:34,482 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-11-02 23:15:34,482 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-11-02 23:15:34,482 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-02 23:15:34,482 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-11-02 23:15:34,482 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-11-02 23:15:34,483 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_14 [2021-11-02 23:15:34,485 INFO L130 BoogieDeclarations]: Found specification of procedure free_14 [2021-11-02 23:15:34,485 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-11-02 23:15:34,485 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-02 23:15:34,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-02 23:15:34,486 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-11-02 23:15:34,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-11-02 23:15:34,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-02 23:15:34,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-11-02 23:15:34,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-02 23:15:34,486 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-02 23:15:34,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-02 23:15:34,486 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-02 23:15:35,199 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-02 23:15:35,508 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-02 23:15:35,870 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-02 23:15:35,870 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-02 23:15:35,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:15:35 BoogieIcfgContainer [2021-11-02 23:15:35,874 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-02 23:15:35,877 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-02 23:15:35,877 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-02 23:15:35,880 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-02 23:15:35,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 11:15:33" (1/3) ... [2021-11-02 23:15:35,882 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@120ed587 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:15:35, skipping insertion in model container [2021-11-02 23:15:35,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:15:34" (2/3) ... [2021-11-02 23:15:35,883 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@120ed587 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:15:35, skipping insertion in model container [2021-11-02 23:15:35,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:15:35" (3/3) ... [2021-11-02 23:15:35,885 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test14.i [2021-11-02 23:15:35,891 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-02 23:15:35,891 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 80 error locations. [2021-11-02 23:15:35,934 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-02 23:15:35,939 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, mAutomataTypeConcurrency=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 [2021-11-02 23:15:35,940 INFO L340 AbstractCegarLoop]: Starting to check reachability of 80 error locations. [2021-11-02 23:15:35,959 INFO L276 IsEmpty]: Start isEmpty. Operand has 200 states, 105 states have (on average 1.638095238095238) internal successors, (172), 162 states have internal predecessors, (172), 19 states have call successors, (19), 17 states have call predecessors, (19), 17 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-11-02 23:15:35,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-02 23:15:35,967 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:15:35,968 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:15:35,968 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_list_addErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 76 more)] === [2021-11-02 23:15:35,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:15:35,974 INFO L85 PathProgramCache]: Analyzing trace with hash -448016128, now seen corresponding path program 1 times [2021-11-02 23:15:35,986 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-02 23:15:35,986 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [750246041] [2021-11-02 23:15:35,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:15:35,987 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-02 23:15:35,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1f288-a6f9-40e5-83f6-8c156c473603/bin/uautomizer-tBqnrhUYjU/mathsat [2021-11-02 23:15:35,991 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1f288-a6f9-40e5-83f6-8c156c473603/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-02 23:15:36,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1f288-a6f9-40e5-83f6-8c156c473603/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-02 23:15:36,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:15:36,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-02 23:15:36,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:15:36,298 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 [2021-11-02 23:15:36,500 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-02 23:15:36,501 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 24 [2021-11-02 23:15:36,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:15:36,613 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-02 23:15:37,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:15:37,004 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-02 23:15:37,005 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [750246041] [2021-11-02 23:15:37,007 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [750246041] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-02 23:15:37,007 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:15:37,008 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 7] imperfect sequences [] total 9 [2021-11-02 23:15:37,009 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471694708] [2021-11-02 23:15:37,015 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-02 23:15:37,015 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-02 23:15:37,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-02 23:15:37,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-11-02 23:15:37,038 INFO L87 Difference]: Start difference. First operand has 200 states, 105 states have (on average 1.638095238095238) internal successors, (172), 162 states have internal predecessors, (172), 19 states have call successors, (19), 17 states have call predecessors, (19), 17 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 10 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 3 states have call successors, (7), 5 states have call predecessors, (7), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-02 23:15:38,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:15:38,152 INFO L93 Difference]: Finished difference Result 118 states and 126 transitions. [2021-11-02 23:15:38,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-02 23:15:38,154 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 3 states have call successors, (7), 5 states have call predecessors, (7), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 19 [2021-11-02 23:15:38,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:15:38,163 INFO L225 Difference]: With dead ends: 118 [2021-11-02 23:15:38,163 INFO L226 Difference]: Without dead ends: 115 [2021-11-02 23:15:38,165 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 21 SyntacticMatches, 8 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2021-11-02 23:15:38,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2021-11-02 23:15:38,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 91. [2021-11-02 23:15:38,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 45 states have (on average 1.6444444444444444) internal successors, (74), 72 states have internal predecessors, (74), 10 states have call successors, (10), 10 states have call predecessors, (10), 9 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2021-11-02 23:15:38,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 93 transitions. [2021-11-02 23:15:38,212 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 93 transitions. Word has length 19 [2021-11-02 23:15:38,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:15:38,213 INFO L470 AbstractCegarLoop]: Abstraction has 91 states and 93 transitions. [2021-11-02 23:15:38,213 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 3 states have call successors, (7), 5 states have call predecessors, (7), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-02 23:15:38,213 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 93 transitions. [2021-11-02 23:15:38,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-02 23:15:38,214 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:15:38,214 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:15:38,231 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1f288-a6f9-40e5-83f6-8c156c473603/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-02 23:15:38,427 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1f288-a6f9-40e5-83f6-8c156c473603/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 [2021-11-02 23:15:38,427 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_list_addErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 76 more)] === [2021-11-02 23:15:38,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:15:38,428 INFO L85 PathProgramCache]: Analyzing trace with hash -448016127, now seen corresponding path program 1 times [2021-11-02 23:15:38,429 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-02 23:15:38,429 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [773515001] [2021-11-02 23:15:38,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:15:38,429 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-02 23:15:38,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1f288-a6f9-40e5-83f6-8c156c473603/bin/uautomizer-tBqnrhUYjU/mathsat [2021-11-02 23:15:38,430 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1f288-a6f9-40e5-83f6-8c156c473603/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-02 23:15:38,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1f288-a6f9-40e5-83f6-8c156c473603/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-02 23:15:38,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:15:38,628 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-02 23:15:38,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:15:38,673 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 [2021-11-02 23:15:38,688 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 [2021-11-02 23:15:40,979 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-02 23:15:40,979 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 33 [2021-11-02 23:15:41,003 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-02 23:15:41,004 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 25 [2021-11-02 23:15:41,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:15:41,199 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-02 23:15:54,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:15:54,101 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-02 23:15:54,101 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [773515001] [2021-11-02 23:15:54,102 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [773515001] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-02 23:15:54,102 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:15:54,102 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 17 [2021-11-02 23:15:54,102 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771000560] [2021-11-02 23:15:54,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-02 23:15:54,104 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-02 23:15:54,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-02 23:15:54,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=258, Unknown=5, NotChecked=0, Total=306 [2021-11-02 23:15:54,106 INFO L87 Difference]: Start difference. First operand 91 states and 93 transitions. Second operand has 18 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 14 states have internal predecessors, (20), 7 states have call successors, (9), 7 states have call predecessors, (9), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-02 23:19:34,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:19:34,352 INFO L93 Difference]: Finished difference Result 117 states and 124 transitions. [2021-11-02 23:19:34,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:19:34,362 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 14 states have internal predecessors, (20), 7 states have call successors, (9), 7 states have call predecessors, (9), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 19 [2021-11-02 23:19:34,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:19:34,365 INFO L225 Difference]: With dead ends: 117 [2021-11-02 23:19:34,365 INFO L226 Difference]: Without dead ends: 117 [2021-11-02 23:19:34,366 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 31.1s TimeCoverageRelationStatistics Valid=125, Invalid=620, Unknown=11, NotChecked=0, Total=756 [2021-11-02 23:19:34,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2021-11-02 23:19:34,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 90. [2021-11-02 23:19:34,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 45 states have (on average 1.6222222222222222) internal successors, (73), 71 states have internal predecessors, (73), 10 states have call successors, (10), 10 states have call predecessors, (10), 9 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2021-11-02 23:19:34,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 92 transitions. [2021-11-02 23:19:34,379 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 92 transitions. Word has length 19 [2021-11-02 23:19:34,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:19:34,379 INFO L470 AbstractCegarLoop]: Abstraction has 90 states and 92 transitions. [2021-11-02 23:19:34,380 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 14 states have internal predecessors, (20), 7 states have call successors, (9), 7 states have call predecessors, (9), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-02 23:19:34,380 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 92 transitions. [2021-11-02 23:19:34,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-02 23:19:34,381 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:19:34,381 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] [2021-11-02 23:19:34,416 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1f288-a6f9-40e5-83f6-8c156c473603/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-02 23:19:34,618 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1f288-a6f9-40e5-83f6-8c156c473603/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 [2021-11-02 23:19:34,618 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __ldv_list_addErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 76 more)] === [2021-11-02 23:19:34,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:19:34,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1910282811, now seen corresponding path program 1 times [2021-11-02 23:19:34,619 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-02 23:19:34,620 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [908717607] [2021-11-02 23:19:34,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:19:34,620 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-02 23:19:34,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1f288-a6f9-40e5-83f6-8c156c473603/bin/uautomizer-tBqnrhUYjU/mathsat [2021-11-02 23:19:34,621 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1f288-a6f9-40e5-83f6-8c156c473603/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-02 23:19:34,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1f288-a6f9-40e5-83f6-8c156c473603/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-02 23:19:34,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:19:34,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-02 23:19:34,873 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:19:35,165 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2021-11-02 23:19:35,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:19:35,277 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-02 23:19:35,423 INFO L354 Elim1Store]: treesize reduction 5, result has 58.3 percent of original size [2021-11-02 23:19:35,424 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 20 [2021-11-02 23:19:35,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:19:35,516 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-02 23:19:35,516 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [908717607] [2021-11-02 23:19:35,516 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [908717607] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-02 23:19:35,516 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:19:35,516 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 9] imperfect sequences [] total 10 [2021-11-02 23:19:35,516 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998360059] [2021-11-02 23:19:35,517 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-02 23:19:35,517 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-02 23:19:35,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-02 23:19:35,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-11-02 23:19:35,518 INFO L87 Difference]: Start difference. First operand 90 states and 92 transitions. Second operand has 11 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 4 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-02 23:19:41,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:19:41,217 INFO L93 Difference]: Finished difference Result 122 states and 127 transitions. [2021-11-02 23:19:41,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-02 23:19:41,217 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 4 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 22 [2021-11-02 23:19:41,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:19:41,219 INFO L225 Difference]: With dead ends: 122 [2021-11-02 23:19:41,219 INFO L226 Difference]: Without dead ends: 122 [2021-11-02 23:19:41,220 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 31 SyntacticMatches, 3 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2021-11-02 23:19:41,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-11-02 23:19:41,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 89. [2021-11-02 23:19:41,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 45 states have (on average 1.6) internal successors, (72), 70 states have internal predecessors, (72), 10 states have call successors, (10), 10 states have call predecessors, (10), 9 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2021-11-02 23:19:41,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 91 transitions. [2021-11-02 23:19:41,232 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 91 transitions. Word has length 22 [2021-11-02 23:19:41,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:19:41,233 INFO L470 AbstractCegarLoop]: Abstraction has 89 states and 91 transitions. [2021-11-02 23:19:41,233 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 4 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-02 23:19:41,233 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 91 transitions. [2021-11-02 23:19:41,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-02 23:19:41,234 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:19:41,234 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] [2021-11-02 23:19:41,243 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1f288-a6f9-40e5-83f6-8c156c473603/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-02 23:19:41,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1f288-a6f9-40e5-83f6-8c156c473603/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 [2021-11-02 23:19:41,439 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __ldv_list_addErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 76 more)] === [2021-11-02 23:19:41,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:19:41,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1910282812, now seen corresponding path program 1 times [2021-11-02 23:19:41,440 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-02 23:19:41,440 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2107546477] [2021-11-02 23:19:41,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:19:41,440 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-02 23:19:41,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1f288-a6f9-40e5-83f6-8c156c473603/bin/uautomizer-tBqnrhUYjU/mathsat [2021-11-02 23:19:41,441 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1f288-a6f9-40e5-83f6-8c156c473603/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-02 23:19:41,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1f288-a6f9-40e5-83f6-8c156c473603/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-02 23:19:41,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:19:41,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 38 conjunts are in the unsatisfiable core [2021-11-02 23:19:41,684 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:19:41,718 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 [2021-11-02 23:19:41,750 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 [2021-11-02 23:19:42,044 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 30 [2021-11-02 23:19:42,053 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2021-11-02 23:19:44,421 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-02 23:19:44,421 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 36 [2021-11-02 23:19:44,444 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-02 23:19:44,444 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 28 [2021-11-02 23:19:44,849 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 26 [2021-11-02 23:19:44,860 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2021-11-02 23:19:45,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:19:45,058 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-02 23:19:57,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:19:57,077 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-02 23:19:57,077 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2107546477] [2021-11-02 23:19:57,078 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2107546477] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-02 23:19:57,078 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:19:57,078 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 23 [2021-11-02 23:19:57,078 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232258612] [2021-11-02 23:19:57,079 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-11-02 23:19:57,079 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-02 23:19:57,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-11-02 23:19:57,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=492, Unknown=2, NotChecked=0, Total=552 [2021-11-02 23:19:57,080 INFO L87 Difference]: Start difference. First operand 89 states and 91 transitions. Second operand has 24 states, 17 states have (on average 1.411764705882353) internal successors, (24), 18 states have internal predecessors, (24), 9 states have call successors, (11), 9 states have call predecessors, (11), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-02 23:25:03,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:25:03,099 INFO L93 Difference]: Finished difference Result 119 states and 128 transitions. [2021-11-02 23:25:03,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-02 23:25:03,101 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 17 states have (on average 1.411764705882353) internal successors, (24), 18 states have internal predecessors, (24), 9 states have call successors, (11), 9 states have call predecessors, (11), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 22 [2021-11-02 23:25:03,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:25:03,102 INFO L225 Difference]: With dead ends: 119 [2021-11-02 23:25:03,102 INFO L226 Difference]: Without dead ends: 119 [2021-11-02 23:25:03,103 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 87.6s TimeCoverageRelationStatistics Valid=175, Invalid=1281, Unknown=26, NotChecked=0, Total=1482 [2021-11-02 23:25:03,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2021-11-02 23:25:03,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 88. [2021-11-02 23:25:03,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 45 states have (on average 1.5777777777777777) internal successors, (71), 69 states have internal predecessors, (71), 10 states have call successors, (10), 10 states have call predecessors, (10), 9 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2021-11-02 23:25:03,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 90 transitions. [2021-11-02 23:25:03,112 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 90 transitions. Word has length 22 [2021-11-02 23:25:03,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:25:03,113 INFO L470 AbstractCegarLoop]: Abstraction has 88 states and 90 transitions. [2021-11-02 23:25:03,113 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 17 states have (on average 1.411764705882353) internal successors, (24), 18 states have internal predecessors, (24), 9 states have call successors, (11), 9 states have call predecessors, (11), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-02 23:25:03,113 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 90 transitions. [2021-11-02 23:25:03,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-02 23:25:03,114 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:25:03,114 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] [2021-11-02 23:25:03,125 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1f288-a6f9-40e5-83f6-8c156c473603/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-02 23:25:03,322 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1f288-a6f9-40e5-83f6-8c156c473603/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 [2021-11-02 23:25:03,323 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting free_14Err0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 76 more)] === [2021-11-02 23:25:03,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:25:03,323 INFO L85 PathProgramCache]: Analyzing trace with hash -1159099875, now seen corresponding path program 1 times [2021-11-02 23:25:03,324 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-02 23:25:03,325 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [242394273] [2021-11-02 23:25:03,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:25:03,327 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-02 23:25:03,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1f288-a6f9-40e5-83f6-8c156c473603/bin/uautomizer-tBqnrhUYjU/mathsat [2021-11-02 23:25:03,328 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1f288-a6f9-40e5-83f6-8c156c473603/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-02 23:25:03,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1f288-a6f9-40e5-83f6-8c156c473603/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-02 23:25:03,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:25:03,544 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-02 23:25:03,545 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:25:03,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:25:03,634 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-02 23:25:03,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:25:03,774 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-02 23:25:03,774 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [242394273] [2021-11-02 23:25:03,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [242394273] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-02 23:25:03,774 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:25:03,774 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-02 23:25:03,774 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556942275] [2021-11-02 23:25:03,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-02 23:25:03,775 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-02 23:25:03,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-02 23:25:03,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-02 23:25:03,776 INFO L87 Difference]: Start difference. First operand 88 states and 90 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-02 23:25:03,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:25:03,804 INFO L93 Difference]: Finished difference Result 95 states and 98 transitions. [2021-11-02 23:25:03,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-02 23:25:03,807 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 21 [2021-11-02 23:25:03,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:25:03,808 INFO L225 Difference]: With dead ends: 95 [2021-11-02 23:25:03,808 INFO L226 Difference]: Without dead ends: 95 [2021-11-02 23:25:03,809 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-02 23:25:03,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2021-11-02 23:25:03,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 92. [2021-11-02 23:25:03,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 48 states have (on average 1.5416666666666667) internal successors, (74), 72 states have internal predecessors, (74), 10 states have call successors, (10), 10 states have call predecessors, (10), 10 states have return successors, (10), 10 states have call predecessors, (10), 9 states have call successors, (10) [2021-11-02 23:25:03,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 94 transitions. [2021-11-02 23:25:03,817 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 94 transitions. Word has length 21 [2021-11-02 23:25:03,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:25:03,817 INFO L470 AbstractCegarLoop]: Abstraction has 92 states and 94 transitions. [2021-11-02 23:25:03,817 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-02 23:25:03,818 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 94 transitions. [2021-11-02 23:25:03,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-02 23:25:03,818 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:25:03,819 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] [2021-11-02 23:25:03,830 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1f288-a6f9-40e5-83f6-8c156c473603/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-11-02 23:25:04,030 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1f288-a6f9-40e5-83f6-8c156c473603/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 [2021-11-02 23:25:04,031 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting free_14Err0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 76 more)] === [2021-11-02 23:25:04,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:25:04,031 INFO L85 PathProgramCache]: Analyzing trace with hash -1355613380, now seen corresponding path program 1 times [2021-11-02 23:25:04,032 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-02 23:25:04,032 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [715307445] [2021-11-02 23:25:04,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:25:04,032 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-02 23:25:04,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1f288-a6f9-40e5-83f6-8c156c473603/bin/uautomizer-tBqnrhUYjU/mathsat [2021-11-02 23:25:04,033 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1f288-a6f9-40e5-83f6-8c156c473603/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-02 23:25:04,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1f288-a6f9-40e5-83f6-8c156c473603/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-02 23:25:04,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:25:04,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-02 23:25:04,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:25:04,284 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 [2021-11-02 23:25:04,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:25:04,417 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-02 23:25:04,664 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-02 23:25:04,664 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [715307445] [2021-11-02 23:25:04,665 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Shadow problem: [|v_entry_point_~#list_14~0.base_BEFORE_CALL_7|] [2021-11-02 23:25:04,665 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [639721718] [2021-11-02 23:25:04,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:25:04,665 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-02 23:25:04,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1f288-a6f9-40e5-83f6-8c156c473603/bin/uautomizer-tBqnrhUYjU/cvc4 [2021-11-02 23:25:04,667 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1f288-a6f9-40e5-83f6-8c156c473603/bin/uautomizer-tBqnrhUYjU/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-02 23:25:04,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1f288-a6f9-40e5-83f6-8c156c473603/bin/uautomizer-tBqnrhUYjU/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2021-11-02 23:25:04,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:25:04,978 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-02 23:25:04,980 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:25:05,001 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 [2021-11-02 23:25:05,012 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-02 23:25:05,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:25:05,099 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-02 23:25:05,343 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Shadow problem: [|v_entry_point_~#list_14~0.base_BEFORE_CALL_7|] [2021-11-02 23:25:05,343 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2044997876] [2021-11-02 23:25:05,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:25:05,344 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:25:05,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1f288-a6f9-40e5-83f6-8c156c473603/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:25:05,345 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1f288-a6f9-40e5-83f6-8c156c473603/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:25:05,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1f288-a6f9-40e5-83f6-8c156c473603/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-02 23:25:05,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:25:05,583 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-02 23:25:05,585 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:25:05,607 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 [2021-11-02 23:25:05,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:25:05,710 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-02 23:25:05,966 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Shadow problem: [|v_entry_point_~#list_14~0.base_BEFORE_CALL_7|] [2021-11-02 23:25:05,966 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:25:05,967 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-11-02 23:25:05,967 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-11-02 23:25:05,967 INFO L627 BasicCegarLoop]: Counterexample might be feasible [2021-11-02 23:25:05,973 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_14Err0REQUIRES_VIOLATION [2021-11-02 23:25:05,975 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION [2021-11-02 23:25:05,975 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION [2021-11-02 23:25:05,975 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION [2021-11-02 23:25:05,976 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION [2021-11-02 23:25:05,976 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION [2021-11-02 23:25:05,976 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION [2021-11-02 23:25:05,976 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION [2021-11-02 23:25:05,976 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION [2021-11-02 23:25:05,977 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION [2021-11-02 23:25:05,977 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION [2021-11-02 23:25:05,977 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION [2021-11-02 23:25:05,977 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION [2021-11-02 23:25:05,977 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION [2021-11-02 23:25:05,977 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION [2021-11-02 23:25:05,978 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION [2021-11-02 23:25:05,978 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION [2021-11-02 23:25:05,978 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION [2021-11-02 23:25:05,978 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION [2021-11-02 23:25:05,978 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION [2021-11-02 23:25:05,978 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION [2021-11-02 23:25:05,979 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION [2021-11-02 23:25:05,979 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION [2021-11-02 23:25:05,979 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION [2021-11-02 23:25:05,979 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION [2021-11-02 23:25:05,979 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION [2021-11-02 23:25:05,980 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION [2021-11-02 23:25:05,980 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION [2021-11-02 23:25:05,981 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION [2021-11-02 23:25:05,981 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION [2021-11-02 23:25:05,981 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION [2021-11-02 23:25:05,981 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION [2021-11-02 23:25:05,981 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION [2021-11-02 23:25:05,981 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION [2021-11-02 23:25:05,982 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION [2021-11-02 23:25:05,982 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION [2021-11-02 23:25:05,982 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION [2021-11-02 23:25:05,982 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION [2021-11-02 23:25:05,982 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION [2021-11-02 23:25:05,982 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION [2021-11-02 23:25:05,982 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION [2021-11-02 23:25:05,983 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION [2021-11-02 23:25:05,983 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION [2021-11-02 23:25:05,983 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE [2021-11-02 23:25:05,983 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE [2021-11-02 23:25:05,984 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE [2021-11-02 23:25:05,984 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE [2021-11-02 23:25:05,984 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE [2021-11-02 23:25:05,984 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE [2021-11-02 23:25:05,984 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-11-02 23:25:05,985 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION [2021-11-02 23:25:05,987 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION [2021-11-02 23:25:05,988 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION [2021-11-02 23:25:05,988 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION [2021-11-02 23:25:05,988 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION [2021-11-02 23:25:05,988 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION [2021-11-02 23:25:05,988 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION [2021-11-02 23:25:05,988 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION [2021-11-02 23:25:05,989 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE [2021-11-02 23:25:05,989 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE [2021-11-02 23:25:05,989 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE [2021-11-02 23:25:05,989 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE [2021-11-02 23:25:05,989 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE [2021-11-02 23:25:05,990 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE [2021-11-02 23:25:05,990 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION [2021-11-02 23:25:05,990 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION [2021-11-02 23:25:05,990 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION [2021-11-02 23:25:05,990 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION [2021-11-02 23:25:05,991 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION [2021-11-02 23:25:05,991 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION [2021-11-02 23:25:05,991 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_14Err1REQUIRES_VIOLATION [2021-11-02 23:25:05,991 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_14Err2REQUIRES_VIOLATION [2021-11-02 23:25:05,991 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_14Err3REQUIRES_VIOLATION [2021-11-02 23:25:05,991 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_14Err4ASSERT_VIOLATIONMEMORY_FREE [2021-11-02 23:25:05,992 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_14Err5ASSERT_VIOLATIONMEMORY_FREE [2021-11-02 23:25:05,992 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_14Err6ASSERT_VIOLATIONMEMORY_FREE [2021-11-02 23:25:05,992 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_14Err7REQUIRES_VIOLATION [2021-11-02 23:25:05,992 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_14Err8REQUIRES_VIOLATION [2021-11-02 23:25:05,992 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION [2021-11-02 23:25:05,993 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION [2021-11-02 23:25:06,028 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1f288-a6f9-40e5-83f6-8c156c473603/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-02 23:25:06,212 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1f288-a6f9-40e5-83f6-8c156c473603/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-02 23:25:06,400 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1f288-a6f9-40e5-83f6-8c156c473603/bin/uautomizer-tBqnrhUYjU/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2021-11-02 23:25:06,597 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1f288-a6f9-40e5-83f6-8c156c473603/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1f288-a6f9-40e5-83f6-8c156c473603/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1f288-a6f9-40e5-83f6-8c156c473603/bin/uautomizer-tBqnrhUYjU/cvc4 --incremental --print-success --lang smt [2021-11-02 23:25:06,601 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-11-02 23:25:06,604 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-02 23:25:06,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 11:25:06 BoogieIcfgContainer [2021-11-02 23:25:06,617 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-02 23:25:06,619 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-02 23:25:06,619 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-02 23:25:06,619 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-02 23:25:06,620 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:15:35" (3/4) ... [2021-11-02 23:25:06,624 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-02 23:25:06,624 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-02 23:25:06,625 INFO L168 Benchmark]: Toolchain (without parser) took 573290.74 ms. Allocated memory was 65.0 MB in the beginning and 107.0 MB in the end (delta: 41.9 MB). Free memory was 43.1 MB in the beginning and 35.2 MB in the end (delta: 8.0 MB). Peak memory consumption was 48.7 MB. Max. memory is 16.1 GB. [2021-11-02 23:25:06,626 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 65.0 MB. Free memory is still 46.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-02 23:25:06,627 INFO L168 Benchmark]: CACSL2BoogieTranslator took 881.89 ms. Allocated memory was 65.0 MB in the beginning and 81.8 MB in the end (delta: 16.8 MB). Free memory was 42.9 MB in the beginning and 62.4 MB in the end (delta: -19.4 MB). Peak memory consumption was 16.6 MB. Max. memory is 16.1 GB. [2021-11-02 23:25:06,627 INFO L168 Benchmark]: Boogie Preprocessor took 108.65 ms. Allocated memory is still 81.8 MB. Free memory was 62.4 MB in the beginning and 57.5 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-02 23:25:06,628 INFO L168 Benchmark]: RCFGBuilder took 1535.40 ms. Allocated memory is still 81.8 MB. Free memory was 57.5 MB in the beginning and 55.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. [2021-11-02 23:25:06,628 INFO L168 Benchmark]: TraceAbstraction took 570740.44 ms. Allocated memory was 81.8 MB in the beginning and 107.0 MB in the end (delta: 25.2 MB). Free memory was 55.3 MB in the beginning and 35.7 MB in the end (delta: 19.6 MB). Peak memory consumption was 44.6 MB. Max. memory is 16.1 GB. [2021-11-02 23:25:06,628 INFO L168 Benchmark]: Witness Printer took 5.26 ms. Allocated memory is still 107.0 MB. Free memory was 35.7 MB in the beginning and 35.2 MB in the end (delta: 553.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-02 23:25:06,632 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 65.0 MB. Free memory is still 46.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 881.89 ms. Allocated memory was 65.0 MB in the beginning and 81.8 MB in the end (delta: 16.8 MB). Free memory was 42.9 MB in the beginning and 62.4 MB in the end (delta: -19.4 MB). Peak memory consumption was 16.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 108.65 ms. Allocated memory is still 81.8 MB. Free memory was 62.4 MB in the beginning and 57.5 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1535.40 ms. Allocated memory is still 81.8 MB. Free memory was 57.5 MB in the beginning and 55.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 570740.44 ms. Allocated memory was 81.8 MB in the beginning and 107.0 MB in the end (delta: 25.2 MB). Free memory was 55.3 MB in the beginning and 35.7 MB in the end (delta: 19.6 MB). Peak memory consumption was 44.6 MB. Max. memory is 16.1 GB. * Witness Printer took 5.26 ms. Allocated memory is still 107.0 MB. Free memory was 35.7 MB in the beginning and 35.2 MB in the end (delta: 553.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 770]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L781] CALL entry_point() [L776] struct ldv_list_head list_14 = { &(list_14), &(list_14) }; [L777] CALL alloc_14(&list_14) [L762] CALL, EXPR ldv_malloc(sizeof(struct A14)) [L526] COND FALSE !(__VERIFIER_nondet_int()) [L529] return 0; [L762] RET, EXPR ldv_malloc(sizeof(struct A14)) [L762] struct A14 *p = (struct A14 *)ldv_malloc(sizeof(struct A14)); [L763] COND FALSE !(\read(*p)) [L777] RET alloc_14(&list_14) [L778] CALL free_14(&list_14) [L768] struct A14 *p; [L769] struct A14 *n; [L770] (plist)->next - 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: 780]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed 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: 770]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 770]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 770]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 772]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 772]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 772]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 770]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 770]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 49 procedures, 362 locations, 80 error locations. Started 1 CEGAR loops. OverallTime: 570.6s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 533.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 358 SDtfs, 431 SDslu, 1549 SDs, 0 SdLazy, 2978 SolverSat, 166 SolverUnsat, 207 SolverUnknown, 0 SolverNotchecked, 432.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 240 GetRequests, 132 SyntacticMatches, 11 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 306 ImplicationChecksByTransitivity, 119.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=200occurred in iteration=0, InterpolantAutomatonStates: 68, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 118 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 32.9s InterpolantComputationTime, 124 NumberOfCodeBlocks, 124 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 216 ConstructedInterpolants, 30 QuantifiedInterpolants, 2190 SizeOfPredicates, 51 NumberOfNonLiveVariables, 724 ConjunctsInSsa, 103 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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 [2021-11-02 23:25:06,782 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1f288-a6f9-40e5-83f6-8c156c473603/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN