./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b222bf4-2566-4dbd-b3a7-8317af4ca63b/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b222bf4-2566-4dbd-b3a7-8317af4ca63b/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b222bf4-2566-4dbd-b3a7-8317af4ca63b/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b222bf4-2566-4dbd-b3a7-8317af4ca63b/bin/uautomizer-j4sWxH34Be/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b222bf4-2566-4dbd-b3a7-8317af4ca63b/bin/uautomizer-j4sWxH34Be/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b222bf4-2566-4dbd-b3a7-8317af4ca63b/bin/uautomizer-j4sWxH34Be --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 12544117846b274bd1cb12a6694f8fda1d77f0b1327b2e9a353cfe44563b100a ................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b222bf4-2566-4dbd-b3a7-8317af4ca63b/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b222bf4-2566-4dbd-b3a7-8317af4ca63b/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b222bf4-2566-4dbd-b3a7-8317af4ca63b/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b222bf4-2566-4dbd-b3a7-8317af4ca63b/bin/uautomizer-j4sWxH34Be/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b222bf4-2566-4dbd-b3a7-8317af4ca63b/bin/uautomizer-j4sWxH34Be/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b222bf4-2566-4dbd-b3a7-8317af4ca63b/bin/uautomizer-j4sWxH34Be --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 12544117846b274bd1cb12a6694f8fda1d77f0b1327b2e9a353cfe44563b100a ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 19:11:19,301 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:11:19,303 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:11:19,354 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:11:19,354 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:11:19,356 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:11:19,358 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:11:19,365 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:11:19,367 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:11:19,370 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:11:19,371 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:11:19,373 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:11:19,375 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:11:19,379 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:11:19,380 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:11:19,384 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:11:19,388 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:11:19,395 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:11:19,398 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:11:19,402 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:11:19,406 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:11:19,409 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:11:19,410 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:11:19,413 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:11:19,417 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:11:19,419 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:11:19,419 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:11:19,422 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:11:19,422 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:11:19,424 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:11:19,425 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:11:19,426 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:11:19,428 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:11:19,429 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:11:19,431 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:11:19,431 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:11:19,432 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:11:19,432 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:11:19,433 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:11:19,434 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:11:19,434 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:11:19,436 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b222bf4-2566-4dbd-b3a7-8317af4ca63b/bin/uautomizer-j4sWxH34Be/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-10-21 19:11:19,492 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:11:19,492 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:11:19,493 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:11:19,493 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:11:19,495 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:11:19,495 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:11:19,496 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:11:19,496 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:11:19,496 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:11:19,497 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 19:11:19,498 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:11:19,498 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:11:19,498 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:11:19,498 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-21 19:11:19,499 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-21 19:11:19,499 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-21 19:11:19,499 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 19:11:19,499 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-21 19:11:19,500 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:11:19,500 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:11:19,500 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:11:19,500 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:11:19,501 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 19:11:19,501 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:11:19,501 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:11:19,501 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 19:11:19,502 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:11:19,502 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-21 19:11:19,502 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:11:19,504 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_5b222bf4-2566-4dbd-b3a7-8317af4ca63b/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b222bf4-2566-4dbd-b3a7-8317af4ca63b/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 12544117846b274bd1cb12a6694f8fda1d77f0b1327b2e9a353cfe44563b100a [2021-10-21 19:11:19,808 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:11:19,843 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:11:19,845 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:11:19,846 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:11:19,847 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:11:19,848 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b222bf4-2566-4dbd-b3a7-8317af4ca63b/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_1.i [2021-10-21 19:11:19,905 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b222bf4-2566-4dbd-b3a7-8317af4ca63b/bin/uautomizer-j4sWxH34Be/data/30ba22f99/96edc52df72f412f9094718ce54f248d/FLAGa8c494dae [2021-10-21 19:11:20,401 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:11:20,401 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b222bf4-2566-4dbd-b3a7-8317af4ca63b/sv-benchmarks/c/ldv-memsafety/memleaks_test18_1.i [2021-10-21 19:11:20,440 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b222bf4-2566-4dbd-b3a7-8317af4ca63b/bin/uautomizer-j4sWxH34Be/data/30ba22f99/96edc52df72f412f9094718ce54f248d/FLAGa8c494dae [2021-10-21 19:11:20,721 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b222bf4-2566-4dbd-b3a7-8317af4ca63b/bin/uautomizer-j4sWxH34Be/data/30ba22f99/96edc52df72f412f9094718ce54f248d [2021-10-21 19:11:20,724 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:11:20,727 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-21 19:11:20,747 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:11:20,748 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:11:20,752 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:11:20,752 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:11:20" (1/1) ... [2021-10-21 19:11:20,754 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75948022 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:11:20, skipping insertion in model container [2021-10-21 19:11:20,754 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:11:20" (1/1) ... [2021-10-21 19:11:20,761 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:11:20,809 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:11:21,331 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:11:21,357 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) [2021-10-21 19:11:21,357 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@63f6d246 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:11:21, skipping insertion in model container [2021-10-21 19:11:21,357 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:11:21,359 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-10-21 19:11:21,362 INFO L168 Benchmark]: Toolchain (without parser) took 632.25 ms. Allocated memory is still 113.2 MB. Free memory was 67.8 MB in the beginning and 82.4 MB in the end (delta: -14.6 MB). Peak memory consumption was 6.7 MB. Max. memory is 16.1 GB. [2021-10-21 19:11:21,362 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 113.2 MB. Free memory is still 86.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:11:21,364 INFO L168 Benchmark]: CACSL2BoogieTranslator took 611.13 ms. Allocated memory is still 113.2 MB. Free memory was 67.6 MB in the beginning and 82.6 MB in the end (delta: -15.0 MB). Peak memory consumption was 6.7 MB. Max. memory is 16.1 GB. [2021-10-21 19:11:21,367 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 113.2 MB. Free memory is still 86.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 611.13 ms. Allocated memory is still 113.2 MB. Free memory was 67.6 MB in the beginning and 82.6 MB in the end (delta: -15.0 MB). Peak memory consumption was 6.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 19:11:23,667 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:11:23,671 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:11:23,725 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:11:23,726 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:11:23,730 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:11:23,732 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:11:23,739 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:11:23,742 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:11:23,750 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:11:23,751 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:11:23,753 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:11:23,754 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:11:23,757 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:11:23,759 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:11:23,764 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:11:23,767 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:11:23,768 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:11:23,771 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:11:23,780 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:11:23,782 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:11:23,784 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:11:23,786 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:11:23,789 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:11:23,798 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:11:23,799 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:11:23,799 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:11:23,801 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:11:23,802 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:11:23,803 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:11:23,803 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:11:23,804 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:11:23,806 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:11:23,807 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:11:23,829 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:11:23,829 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:11:23,830 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:11:23,831 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:11:23,831 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:11:23,833 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:11:23,833 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:11:23,834 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b222bf4-2566-4dbd-b3a7-8317af4ca63b/bin/uautomizer-j4sWxH34Be/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-21 19:11:23,878 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:11:23,879 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:11:23,879 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:11:23,880 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:11:23,882 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:11:23,882 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:11:23,882 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:11:23,882 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:11:23,883 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:11:23,883 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 19:11:23,884 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:11:23,884 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:11:23,884 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:11:23,885 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-21 19:11:23,885 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-21 19:11:23,885 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-21 19:11:23,885 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 19:11:23,886 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-21 19:11:23,886 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-21 19:11:23,886 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-21 19:11:23,886 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:11:23,886 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:11:23,887 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:11:23,887 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:11:23,887 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 19:11:23,887 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:11:23,888 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:11:23,888 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 19:11:23,888 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-21 19:11:23,889 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-21 19:11:23,889 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:11:23,889 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-21 19:11:23,890 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_5b222bf4-2566-4dbd-b3a7-8317af4ca63b/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b222bf4-2566-4dbd-b3a7-8317af4ca63b/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 12544117846b274bd1cb12a6694f8fda1d77f0b1327b2e9a353cfe44563b100a [2021-10-21 19:11:24,258 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:11:24,279 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:11:24,282 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:11:24,284 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:11:24,284 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:11:24,285 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b222bf4-2566-4dbd-b3a7-8317af4ca63b/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_1.i [2021-10-21 19:11:24,362 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b222bf4-2566-4dbd-b3a7-8317af4ca63b/bin/uautomizer-j4sWxH34Be/data/0e997e76e/e1a2f6b90dcc4eb8a486332fc3d5f17d/FLAG2d72bfb60 [2021-10-21 19:11:25,046 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:11:25,050 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b222bf4-2566-4dbd-b3a7-8317af4ca63b/sv-benchmarks/c/ldv-memsafety/memleaks_test18_1.i [2021-10-21 19:11:25,070 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b222bf4-2566-4dbd-b3a7-8317af4ca63b/bin/uautomizer-j4sWxH34Be/data/0e997e76e/e1a2f6b90dcc4eb8a486332fc3d5f17d/FLAG2d72bfb60 [2021-10-21 19:11:25,363 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b222bf4-2566-4dbd-b3a7-8317af4ca63b/bin/uautomizer-j4sWxH34Be/data/0e997e76e/e1a2f6b90dcc4eb8a486332fc3d5f17d [2021-10-21 19:11:25,365 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:11:25,366 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-21 19:11:25,368 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:11:25,368 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:11:25,377 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:11:25,377 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:11:25" (1/1) ... [2021-10-21 19:11:25,378 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ee6f06f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:11:25, skipping insertion in model container [2021-10-21 19:11:25,379 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:11:25" (1/1) ... [2021-10-21 19:11:25,386 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:11:25,429 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:11:25,807 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:11:25,828 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-21 19:11:25,846 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:11:25,930 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:11:25,942 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:11:26,027 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:11:26,084 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:11:26,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:11:26 WrapperNode [2021-10-21 19:11:26,084 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:11:26,085 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:11:26,086 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:11:26,086 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:11:26,097 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:11:26" (1/1) ... [2021-10-21 19:11:26,098 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:11:26" (1/1) ... [2021-10-21 19:11:26,122 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:11:26" (1/1) ... [2021-10-21 19:11:26,122 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:11:26" (1/1) ... [2021-10-21 19:11:26,183 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:11:26" (1/1) ... [2021-10-21 19:11:26,190 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:11:26" (1/1) ... [2021-10-21 19:11:26,197 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:11:26" (1/1) ... [2021-10-21 19:11:26,216 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:11:26,217 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:11:26,217 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:11:26,217 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:11:26,218 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:11:26" (1/1) ... [2021-10-21 19:11:26,225 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:11:26,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b222bf4-2566-4dbd-b3a7-8317af4ca63b/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:11:26,253 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b222bf4-2566-4dbd-b3a7-8317af4ca63b/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-21 19:11:26,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b222bf4-2566-4dbd-b3a7-8317af4ca63b/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-21 19:11:26,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-21 19:11:26,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:11:26,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-10-21 19:11:26,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-10-21 19:11:26,307 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-10-21 19:11:26,307 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-10-21 19:11:26,307 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-10-21 19:11:26,307 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-10-21 19:11:26,307 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-10-21 19:11:26,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-10-21 19:11:26,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-10-21 19:11:26,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-10-21 19:11:26,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-10-21 19:11:26,308 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-10-21 19:11:26,308 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-10-21 19:11:26,308 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-10-21 19:11:26,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-10-21 19:11:26,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-10-21 19:11:26,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-10-21 19:11:26,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-10-21 19:11:26,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-10-21 19:11:26,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-10-21 19:11:26,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-10-21 19:11:26,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-10-21 19:11:26,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-10-21 19:11:26,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-10-21 19:11:26,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-10-21 19:11:26,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-10-21 19:11:26,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-10-21 19:11:26,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-10-21 19:11:26,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-10-21 19:11:26,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-10-21 19:11:26,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-10-21 19:11:26,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-10-21 19:11:26,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-10-21 19:11:26,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-10-21 19:11:26,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-10-21 19:11:26,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-10-21 19:11:26,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-10-21 19:11:26,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-10-21 19:11:26,311 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-10-21 19:11:26,311 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-10-21 19:11:26,312 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-10-21 19:11:26,312 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-21 19:11:26,312 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-10-21 19:11:26,312 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-10-21 19:11:26,312 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-10-21 19:11:26,312 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-10-21 19:11:26,312 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-10-21 19:11:26,312 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-10-21 19:11:26,313 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-10-21 19:11:26,313 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-10-21 19:11:26,313 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-10-21 19:11:26,313 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-10-21 19:11:26,313 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-10-21 19:11:26,313 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-10-21 19:11:26,313 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-10-21 19:11:26,313 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-10-21 19:11:26,314 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-10-21 19:11:26,314 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-10-21 19:11:26,314 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-10-21 19:11:26,315 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-10-21 19:11:26,316 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-10-21 19:11:26,316 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-10-21 19:11:26,317 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-10-21 19:11:26,317 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-10-21 19:11:26,317 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-10-21 19:11:26,317 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-10-21 19:11:26,317 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-10-21 19:11:26,318 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-10-21 19:11:26,318 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-10-21 19:11:26,318 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-10-21 19:11:26,318 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-10-21 19:11:26,318 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-10-21 19:11:26,318 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-10-21 19:11:26,319 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-10-21 19:11:26,319 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-10-21 19:11:26,320 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-10-21 19:11:26,320 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-10-21 19:11:26,320 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-10-21 19:11:26,320 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-10-21 19:11:26,320 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-10-21 19:11:26,320 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-10-21 19:11:26,320 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-10-21 19:11:26,321 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-10-21 19:11:26,321 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-10-21 19:11:26,321 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-10-21 19:11:26,321 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-10-21 19:11:26,321 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-10-21 19:11:26,321 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-10-21 19:11:26,321 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-10-21 19:11:26,321 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-10-21 19:11:26,321 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-10-21 19:11:26,322 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-10-21 19:11:26,322 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-10-21 19:11:26,322 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-10-21 19:11:26,322 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-10-21 19:11:26,322 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-10-21 19:11:26,323 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-10-21 19:11:26,323 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-10-21 19:11:26,323 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-10-21 19:11:26,323 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-10-21 19:11:26,323 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-10-21 19:11:26,323 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-10-21 19:11:26,323 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-10-21 19:11:26,323 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-10-21 19:11:26,324 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-10-21 19:11:26,324 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-10-21 19:11:26,324 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-10-21 19:11:26,324 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-10-21 19:11:26,324 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-21 19:11:26,324 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-10-21 19:11:26,324 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-10-21 19:11:26,324 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-10-21 19:11:26,325 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-10-21 19:11:26,325 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-10-21 19:11:26,325 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-10-21 19:11:26,325 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-10-21 19:11:26,325 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-10-21 19:11:26,326 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-10-21 19:11:26,326 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-10-21 19:11:26,326 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-10-21 19:11:26,327 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-10-21 19:11:26,327 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-10-21 19:11:26,330 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-10-21 19:11:26,331 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-10-21 19:11:26,331 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-10-21 19:11:26,331 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-10-21 19:11:26,332 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-10-21 19:11:26,332 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-10-21 19:11:26,332 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-10-21 19:11:26,332 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-10-21 19:11:26,333 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-10-21 19:11:26,334 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-10-21 19:11:26,335 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-10-21 19:11:26,335 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-10-21 19:11:26,336 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-10-21 19:11:26,336 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-10-21 19:11:26,336 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-10-21 19:11:26,336 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-10-21 19:11:26,336 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-10-21 19:11:26,337 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-10-21 19:11:26,337 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-10-21 19:11:26,337 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-10-21 19:11:26,337 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-10-21 19:11:26,337 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-10-21 19:11:26,337 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-10-21 19:11:26,337 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-10-21 19:11:26,337 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-10-21 19:11:26,338 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-10-21 19:11:26,338 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-10-21 19:11:26,338 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-10-21 19:11:26,338 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-10-21 19:11:26,338 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-10-21 19:11:26,338 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-10-21 19:11:26,338 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-21 19:11:26,338 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-10-21 19:11:26,338 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-10-21 19:11:26,339 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-10-21 19:11:26,339 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-10-21 19:11:26,339 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-10-21 19:11:26,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-21 19:11:26,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-10-21 19:11:26,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-10-21 19:11:26,352 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-10-21 19:11:26,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-21 19:11:26,352 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-10-21 19:11:26,352 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-10-21 19:11:26,352 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-10-21 19:11:26,352 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-21 19:11:26,352 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-10-21 19:11:26,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-10-21 19:11:26,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-10-21 19:11:26,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-10-21 19:11:26,353 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-10-21 19:11:26,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-10-21 19:11:26,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-21 19:11:26,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-10-21 19:11:26,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-10-21 19:11:26,354 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-10-21 19:11:26,354 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-10-21 19:11:26,354 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-10-21 19:11:26,354 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-21 19:11:26,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-21 19:11:26,354 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-10-21 19:11:26,354 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-10-21 19:11:26,354 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-10-21 19:11:26,355 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-10-21 19:11:26,355 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-10-21 19:11:26,355 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-10-21 19:11:26,355 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-10-21 19:11:26,355 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-10-21 19:11:26,355 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-10-21 19:11:26,355 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-10-21 19:11:26,355 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-10-21 19:11:26,356 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-10-21 19:11:26,356 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-10-21 19:11:26,358 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-10-21 19:11:26,358 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-10-21 19:11:26,358 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-10-21 19:11:26,358 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-10-21 19:11:26,358 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-10-21 19:11:26,359 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-21 19:11:26,359 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-21 19:11:26,359 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:11:26,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-21 19:11:26,359 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:11:26,359 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-10-21 19:11:26,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-10-21 19:11:26,360 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-10-21 19:11:26,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-10-21 19:11:26,360 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-10-21 19:11:27,011 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-21 19:11:27,341 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-21 19:11:27,660 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:11:27,661 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2021-10-21 19:11:27,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:11:27 BoogieIcfgContainer [2021-10-21 19:11:27,663 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:11:27,665 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-21 19:11:27,665 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-21 19:11:27,668 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-21 19:11:27,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 07:11:25" (1/3) ... [2021-10-21 19:11:27,669 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f83c080 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:11:27, skipping insertion in model container [2021-10-21 19:11:27,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:11:26" (2/3) ... [2021-10-21 19:11:27,670 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f83c080 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:11:27, skipping insertion in model container [2021-10-21 19:11:27,670 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:11:27" (3/3) ... [2021-10-21 19:11:27,671 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test18_1.i [2021-10-21 19:11:27,677 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-21 19:11:27,677 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 78 error locations. [2021-10-21 19:11:27,721 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-21 19:11:27,728 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 [2021-10-21 19:11:27,729 INFO L340 AbstractCegarLoop]: Starting to check reachability of 78 error locations. [2021-10-21 19:11:27,755 INFO L276 IsEmpty]: Start isEmpty. Operand has 111 states, 63 states have (on average 1.5873015873015872) internal successors, (100), 88 states have internal predecessors, (100), 12 states have call successors, (12), 10 states have call predecessors, (12), 10 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2021-10-21 19:11:27,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-21 19:11:27,765 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:11:27,769 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:11:27,769 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 74 more)] === [2021-10-21 19:11:27,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:11:27,779 INFO L82 PathProgramCache]: Analyzing trace with hash 1086874314, now seen corresponding path program 1 times [2021-10-21 19:11:27,791 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:11:27,791 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [887769690] [2021-10-21 19:11:27,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:11:27,803 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:11:27,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b222bf4-2566-4dbd-b3a7-8317af4ca63b/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:11:27,810 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b222bf4-2566-4dbd-b3a7-8317af4ca63b/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:11:27,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b222bf4-2566-4dbd-b3a7-8317af4ca63b/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-21 19:11:28,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:11:28,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 19:11:28,018 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:11:28,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:11:28,151 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:11:28,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:11:28,274 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:11:28,274 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [887769690] [2021-10-21 19:11:28,275 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [887769690] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:11:28,275 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:11:28,275 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-21 19:11:28,277 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038611672] [2021-10-21 19:11:28,282 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-21 19:11:28,282 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:11:28,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 19:11:28,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:11:28,298 INFO L87 Difference]: Start difference. First operand has 111 states, 63 states have (on average 1.5873015873015872) internal successors, (100), 88 states have internal predecessors, (100), 12 states have call successors, (12), 10 states have call predecessors, (12), 10 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-21 19:11:28,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:11:28,443 INFO L93 Difference]: Finished difference Result 67 states and 78 transitions. [2021-10-21 19:11:28,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 19:11:28,446 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 17 [2021-10-21 19:11:28,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:11:28,455 INFO L225 Difference]: With dead ends: 67 [2021-10-21 19:11:28,456 INFO L226 Difference]: Without dead ends: 64 [2021-10-21 19:11:28,457 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.0ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:11:28,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-10-21 19:11:28,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 42. [2021-10-21 19:11:28,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 25 states have (on average 1.48) internal successors, (37), 32 states have internal predecessors, (37), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2021-10-21 19:11:28,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 48 transitions. [2021-10-21 19:11:28,514 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 48 transitions. Word has length 17 [2021-10-21 19:11:28,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:11:28,515 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 48 transitions. [2021-10-21 19:11:28,515 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-21 19:11:28,515 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 48 transitions. [2021-10-21 19:11:28,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-21 19:11:28,518 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:11:28,518 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:11:28,535 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b222bf4-2566-4dbd-b3a7-8317af4ca63b/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-21 19:11:28,736 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b222bf4-2566-4dbd-b3a7-8317af4ca63b/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:11:28,736 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 74 more)] === [2021-10-21 19:11:28,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:11:28,737 INFO L82 PathProgramCache]: Analyzing trace with hash -1465282647, now seen corresponding path program 1 times [2021-10-21 19:11:28,737 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:11:28,738 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [532023524] [2021-10-21 19:11:28,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:11:28,738 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:11:28,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b222bf4-2566-4dbd-b3a7-8317af4ca63b/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:11:28,739 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b222bf4-2566-4dbd-b3a7-8317af4ca63b/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:11:28,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b222bf4-2566-4dbd-b3a7-8317af4ca63b/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-21 19:11:28,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:11:28,898 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-21 19:11:28,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:11:28,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:11:28,970 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:11:29,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:11:29,076 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:11:29,076 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [532023524] [2021-10-21 19:11:29,077 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [532023524] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:11:29,077 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:11:29,077 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-21 19:11:29,077 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479678243] [2021-10-21 19:11:29,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:11:29,084 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:11:29,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:11:29,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:11:29,089 INFO L87 Difference]: Start difference. First operand 42 states and 48 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-21 19:11:29,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:11:29,183 INFO L93 Difference]: Finished difference Result 64 states and 74 transitions. [2021-10-21 19:11:29,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:11:29,183 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 17 [2021-10-21 19:11:29,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:11:29,185 INFO L225 Difference]: With dead ends: 64 [2021-10-21 19:11:29,185 INFO L226 Difference]: Without dead ends: 61 [2021-10-21 19:11:29,185 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:11:29,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2021-10-21 19:11:29,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 50. [2021-10-21 19:11:29,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 32 states have (on average 1.46875) internal successors, (47), 39 states have internal predecessors, (47), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) [2021-10-21 19:11:29,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 61 transitions. [2021-10-21 19:11:29,193 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 61 transitions. Word has length 17 [2021-10-21 19:11:29,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:11:29,194 INFO L470 AbstractCegarLoop]: Abstraction has 50 states and 61 transitions. [2021-10-21 19:11:29,194 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-21 19:11:29,194 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 61 transitions. [2021-10-21 19:11:29,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-21 19:11:29,195 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:11:29,195 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:11:29,212 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b222bf4-2566-4dbd-b3a7-8317af4ca63b/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-21 19:11:29,396 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b222bf4-2566-4dbd-b3a7-8317af4ca63b/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:11:29,396 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting entry_pointErr2REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 74 more)] === [2021-10-21 19:11:29,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:11:29,396 INFO L82 PathProgramCache]: Analyzing trace with hash -666992135, now seen corresponding path program 1 times [2021-10-21 19:11:29,397 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:11:29,397 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [653282054] [2021-10-21 19:11:29,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:11:29,397 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:11:29,397 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b222bf4-2566-4dbd-b3a7-8317af4ca63b/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:11:29,400 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b222bf4-2566-4dbd-b3a7-8317af4ca63b/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:11:29,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b222bf4-2566-4dbd-b3a7-8317af4ca63b/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-21 19:11:29,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:11:29,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-21 19:11:29,612 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:11:29,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:11:29,703 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:11:29,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:11:29,767 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:11:29,767 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [653282054] [2021-10-21 19:11:29,767 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [653282054] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:11:29,767 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:11:29,767 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-21 19:11:29,768 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300263504] [2021-10-21 19:11:29,768 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-21 19:11:29,769 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:11:29,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-21 19:11:29,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-21 19:11:29,772 INFO L87 Difference]: Start difference. First operand 50 states and 61 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-10-21 19:11:29,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:11:29,859 INFO L93 Difference]: Finished difference Result 98 states and 119 transitions. [2021-10-21 19:11:29,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 19:11:29,860 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 18 [2021-10-21 19:11:29,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:11:29,865 INFO L225 Difference]: With dead ends: 98 [2021-10-21 19:11:29,865 INFO L226 Difference]: Without dead ends: 98 [2021-10-21 19:11:29,866 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 28.4ms TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2021-10-21 19:11:29,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2021-10-21 19:11:29,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 64. [2021-10-21 19:11:29,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 44 states have (on average 1.4772727272727273) internal successors, (65), 51 states have internal predecessors, (65), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (12), 8 states have call predecessors, (12), 7 states have call successors, (12) [2021-10-21 19:11:29,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 85 transitions. [2021-10-21 19:11:29,891 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 85 transitions. Word has length 18 [2021-10-21 19:11:29,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:11:29,892 INFO L470 AbstractCegarLoop]: Abstraction has 64 states and 85 transitions. [2021-10-21 19:11:29,892 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-10-21 19:11:29,893 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 85 transitions. [2021-10-21 19:11:29,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-21 19:11:29,894 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:11:29,894 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:11:29,908 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b222bf4-2566-4dbd-b3a7-8317af4ca63b/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-21 19:11:30,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b222bf4-2566-4dbd-b3a7-8317af4ca63b/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:11:30,106 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting entry_pointErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 74 more)] === [2021-10-21 19:11:30,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:11:30,107 INFO L82 PathProgramCache]: Analyzing trace with hash 1630788241, now seen corresponding path program 1 times [2021-10-21 19:11:30,107 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:11:30,107 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [623524666] [2021-10-21 19:11:30,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:11:30,108 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:11:30,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b222bf4-2566-4dbd-b3a7-8317af4ca63b/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:11:30,109 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b222bf4-2566-4dbd-b3a7-8317af4ca63b/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:11:30,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b222bf4-2566-4dbd-b3a7-8317af4ca63b/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-21 19:11:30,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:11:30,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-21 19:11:30,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:11:30,362 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 [2021-10-21 19:11:30,496 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-10-21 19:11:30,497 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 21 treesize of output 26 [2021-10-21 19:11:30,534 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:11:30,535 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:11:30,784 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:11:30,785 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:11:30,785 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [623524666] [2021-10-21 19:11:30,785 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [623524666] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-21 19:11:30,785 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:11:30,785 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 7 [2021-10-21 19:11:30,786 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759717338] [2021-10-21 19:11:30,786 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-21 19:11:30,789 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:11:30,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-21 19:11:30,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-10-21 19:11:30,790 INFO L87 Difference]: Start difference. First operand 64 states and 85 transitions. Second operand has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-21 19:11:31,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:11:31,469 INFO L93 Difference]: Finished difference Result 134 states and 158 transitions. [2021-10-21 19:11:31,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-21 19:11:31,470 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 23 [2021-10-21 19:11:31,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:11:31,472 INFO L225 Difference]: With dead ends: 134 [2021-10-21 19:11:31,472 INFO L226 Difference]: Without dead ends: 134 [2021-10-21 19:11:31,473 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 34 SyntacticMatches, 6 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 219.7ms TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2021-10-21 19:11:31,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2021-10-21 19:11:31,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 76. [2021-10-21 19:11:31,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 55 states have (on average 1.4363636363636363) internal successors, (79), 61 states have internal predecessors, (79), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (12), 9 states have call predecessors, (12), 7 states have call successors, (12) [2021-10-21 19:11:31,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 99 transitions. [2021-10-21 19:11:31,483 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 99 transitions. Word has length 23 [2021-10-21 19:11:31,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:11:31,483 INFO L470 AbstractCegarLoop]: Abstraction has 76 states and 99 transitions. [2021-10-21 19:11:31,483 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-21 19:11:31,483 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 99 transitions. [2021-10-21 19:11:31,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-21 19:11:31,484 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:11:31,484 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:11:31,499 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b222bf4-2566-4dbd-b3a7-8317af4ca63b/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-21 19:11:31,696 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b222bf4-2566-4dbd-b3a7-8317af4ca63b/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:11:31,696 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting entry_pointErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 74 more)] === [2021-10-21 19:11:31,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:11:31,697 INFO L82 PathProgramCache]: Analyzing trace with hash 1630788242, now seen corresponding path program 1 times [2021-10-21 19:11:31,697 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:11:31,697 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [530279569] [2021-10-21 19:11:31,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:11:31,697 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:11:31,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b222bf4-2566-4dbd-b3a7-8317af4ca63b/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:11:31,698 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b222bf4-2566-4dbd-b3a7-8317af4ca63b/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:11:31,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b222bf4-2566-4dbd-b3a7-8317af4ca63b/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-21 19:11:31,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:11:31,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-21 19:11:31,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:11:31,941 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 [2021-10-21 19:11:31,948 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 [2021-10-21 19:11:34,338 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-10-21 19:11:34,338 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 32 treesize of output 34 [2021-10-21 19:11:34,360 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-21 19:11:34,361 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 26 treesize of output 26 [2021-10-21 19:11:34,472 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:11:34,472 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:11:51,825 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 29 treesize of output 27 [2021-10-21 19:11:52,356 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 27 treesize of output 25 [2021-10-21 19:11:52,544 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:11:52,545 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:11:52,545 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [530279569] [2021-10-21 19:11:52,545 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [530279569] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-21 19:11:52,545 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:11:52,545 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2021-10-21 19:11:52,545 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677525754] [2021-10-21 19:11:52,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-10-21 19:11:52,546 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:11:52,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-21 19:11:52,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=257, Unknown=6, NotChecked=0, Total=306 [2021-10-21 19:11:52,547 INFO L87 Difference]: Start difference. First operand 76 states and 99 transitions. Second operand has 18 states, 15 states have (on average 1.8666666666666667) internal successors, (28), 16 states have internal predecessors, (28), 5 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-10-21 19:12:23,124 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((ldv_malloc_~size (_ BitVec 32)) (|ldv_malloc_#res.base| (_ BitVec 32))) (and (= (store |c_old(#length)| |ldv_malloc_#res.base| ldv_malloc_~size) |c_#length|) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (select |c_old(#valid)| |ldv_malloc_#res.base|)))))))) (= (select |c_#length| |c_ldv_malloc_#res.base|) |c_ldv_malloc_#in~size|) (forall ((v_entry_point_~i~0_BEFORE_CALL_2 (_ BitVec 32)) (v_entry_point_~array~0.base_BEFORE_CALL_4 (_ BitVec 32)) (|v_ldv_malloc_#res.base_32| (_ BitVec 32)) (v_entry_point_~array~0.offset_BEFORE_CALL_2 (_ BitVec 32))) (or (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_ldv_malloc_#res.base_32|)))) (exists ((|v_ldv_malloc_#res.base_31| (_ BitVec 32))) (and (= (_ bv0 1) (bvneg (bvneg (select |c_old(#valid)| |v_ldv_malloc_#res.base_31|)))) (or (exists ((v_ldv_malloc_~size_28 (_ BitVec 32))) (not (bvule (bvadd (_ bv4 32) (bvmul v_entry_point_~i~0_BEFORE_CALL_2 (_ bv4 32)) v_entry_point_~array~0.offset_BEFORE_CALL_2) (select (store |c_old(#length)| |v_ldv_malloc_#res.base_31| v_ldv_malloc_~size_28) v_entry_point_~array~0.base_BEFORE_CALL_4)))) (not (let ((.cse0 (bvmul v_entry_point_~i~0_BEFORE_CALL_2 (_ bv4 32)))) (bvule (bvadd .cse0 v_entry_point_~array~0.offset_BEFORE_CALL_2) (bvadd (_ bv4 32) .cse0 v_entry_point_~array~0.offset_BEFORE_CALL_2))))))) (and (forall ((ldv_malloc_~size (_ BitVec 32))) (bvule (bvadd (_ bv4 32) (bvmul v_entry_point_~i~0_BEFORE_CALL_2 (_ bv4 32)) v_entry_point_~array~0.offset_BEFORE_CALL_2) (select (store |c_#length| |v_ldv_malloc_#res.base_32| ldv_malloc_~size) v_entry_point_~array~0.base_BEFORE_CALL_4))) (let ((.cse1 (bvmul v_entry_point_~i~0_BEFORE_CALL_2 (_ bv4 32)))) (bvule (bvadd .cse1 v_entry_point_~array~0.offset_BEFORE_CALL_2) (bvadd (_ bv4 32) .cse1 v_entry_point_~array~0.offset_BEFORE_CALL_2)))))) (= c_ldv_malloc_~size |c_ldv_malloc_#in~size|) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| |c_ldv_malloc_#res.base|))) (= |c_ldv_malloc_#res.offset| (_ bv0 32))) is different from false [2021-10-21 19:13:19,637 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (bvmul c_entry_point_~i~0 (_ bv4 32)))) (let ((.cse1 (bvadd (_ bv4 32) .cse0 c_entry_point_~array~0.offset))) (and (bvule (bvadd .cse0 c_entry_point_~array~0.offset) .cse1) (= |c_old(#valid)| |c_#valid|) (= |c_#length| |c_old(#length)|) (= c_entry_point_~len~0 (_ bv10 32)) (bvule .cse1 (select |c_#length| c_entry_point_~array~0.base)) (forall ((|v_ldv_malloc_#res.base_31| (_ BitVec 32))) (or (and (let ((.cse2 (bvmul c_entry_point_~i~0 (_ bv4 32)))) (bvule (bvadd .cse2 c_entry_point_~array~0.offset) (bvadd (_ bv4 32) .cse2 c_entry_point_~array~0.offset))) (forall ((v_ldv_malloc_~size_28 (_ BitVec 32))) (bvule (bvadd (_ bv4 32) (bvmul c_entry_point_~i~0 (_ bv4 32)) c_entry_point_~array~0.offset) (select (store |c_#length| |v_ldv_malloc_#res.base_31| v_ldv_malloc_~size_28) c_entry_point_~array~0.base)))) (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_ldv_malloc_#res.base_31|))))))))) is different from false [2021-10-21 19:14:16,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:14:16,989 INFO L93 Difference]: Finished difference Result 229 states and 281 transitions. [2021-10-21 19:14:16,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-21 19:14:16,989 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 15 states have (on average 1.8666666666666667) internal successors, (28), 16 states have internal predecessors, (28), 5 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 23 [2021-10-21 19:14:16,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:14:16,991 INFO L225 Difference]: With dead ends: 229 [2021-10-21 19:14:16,991 INFO L226 Difference]: Without dead ends: 229 [2021-10-21 19:14:16,992 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 44778.4ms TimeCoverageRelationStatistics Valid=178, Invalid=870, Unknown=16, NotChecked=126, Total=1190 [2021-10-21 19:14:16,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2021-10-21 19:14:17,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 82. [2021-10-21 19:14:17,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 60 states have (on average 1.4) internal successors, (84), 66 states have internal predecessors, (84), 9 states have call successors, (9), 5 states have call predecessors, (9), 5 states have return successors, (14), 10 states have call predecessors, (14), 8 states have call successors, (14) [2021-10-21 19:14:17,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 107 transitions. [2021-10-21 19:14:17,005 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 107 transitions. Word has length 23 [2021-10-21 19:14:17,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:14:17,005 INFO L470 AbstractCegarLoop]: Abstraction has 82 states and 107 transitions. [2021-10-21 19:14:17,006 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 15 states have (on average 1.8666666666666667) internal successors, (28), 16 states have internal predecessors, (28), 5 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-10-21 19:14:17,006 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 107 transitions. [2021-10-21 19:14:17,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-21 19:14:17,007 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:14:17,007 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:14:17,018 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b222bf4-2566-4dbd-b3a7-8317af4ca63b/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-21 19:14:17,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b222bf4-2566-4dbd-b3a7-8317af4ca63b/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:14:17,208 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting entry_pointErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 74 more)] === [2021-10-21 19:14:17,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:14:17,208 INFO L82 PathProgramCache]: Analyzing trace with hash 1125229616, now seen corresponding path program 1 times [2021-10-21 19:14:17,209 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:14:17,209 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1300914080] [2021-10-21 19:14:17,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:14:17,209 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:14:17,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b222bf4-2566-4dbd-b3a7-8317af4ca63b/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:14:17,210 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b222bf4-2566-4dbd-b3a7-8317af4ca63b/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:14:17,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b222bf4-2566-4dbd-b3a7-8317af4ca63b/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-21 19:14:17,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:14:17,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-21 19:14:17,398 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:14:17,553 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:14:17,553 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:14:17,695 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-21 19:14:17,695 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:14:17,697 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1300914080] [2021-10-21 19:14:17,698 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1300914080] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-21 19:14:17,698 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:14:17,698 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2021-10-21 19:14:17,698 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945246172] [2021-10-21 19:14:17,699 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-21 19:14:17,699 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:14:17,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 19:14:17,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:14:17,700 INFO L87 Difference]: Start difference. First operand 82 states and 107 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-21 19:14:17,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:14:17,760 INFO L93 Difference]: Finished difference Result 58 states and 70 transitions. [2021-10-21 19:14:17,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 19:14:17,761 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 23 [2021-10-21 19:14:17,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:14:17,761 INFO L225 Difference]: With dead ends: 58 [2021-10-21 19:14:17,761 INFO L226 Difference]: Without dead ends: 54 [2021-10-21 19:14:17,762 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 48.9ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:14:17,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-10-21 19:14:17,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2021-10-21 19:14:17,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 36 states have (on average 1.3888888888888888) internal successors, (50), 42 states have internal predecessors, (50), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (9), 6 states have call predecessors, (9), 6 states have call successors, (9) [2021-10-21 19:14:17,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 66 transitions. [2021-10-21 19:14:17,767 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 66 transitions. Word has length 23 [2021-10-21 19:14:17,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:14:17,767 INFO L470 AbstractCegarLoop]: Abstraction has 54 states and 66 transitions. [2021-10-21 19:14:17,767 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-21 19:14:17,767 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 66 transitions. [2021-10-21 19:14:17,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-21 19:14:17,768 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:14:17,768 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:14:17,776 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b222bf4-2566-4dbd-b3a7-8317af4ca63b/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-21 19:14:17,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b222bf4-2566-4dbd-b3a7-8317af4ca63b/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:14:17,972 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting entry_pointErr3REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 74 more)] === [2021-10-21 19:14:17,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:14:17,972 INFO L82 PathProgramCache]: Analyzing trace with hash -475603747, now seen corresponding path program 1 times [2021-10-21 19:14:17,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:14:17,973 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1197207900] [2021-10-21 19:14:17,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:14:17,973 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:14:17,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b222bf4-2566-4dbd-b3a7-8317af4ca63b/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:14:17,974 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b222bf4-2566-4dbd-b3a7-8317af4ca63b/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:14:17,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b222bf4-2566-4dbd-b3a7-8317af4ca63b/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-21 19:14:18,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:14:18,179 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 19:14:18,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:14:18,270 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-21 19:14:18,271 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:14:18,353 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-21 19:14:18,353 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:14:18,353 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1197207900] [2021-10-21 19:14:18,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1197207900] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:14:18,354 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:14:18,354 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-21 19:14:18,354 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882354508] [2021-10-21 19:14:18,354 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-21 19:14:18,355 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:14:18,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 19:14:18,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:14:18,355 INFO L87 Difference]: Start difference. First operand 54 states and 66 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-21 19:14:18,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:14:18,420 INFO L93 Difference]: Finished difference Result 90 states and 110 transitions. [2021-10-21 19:14:18,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-21 19:14:18,420 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 25 [2021-10-21 19:14:18,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:14:18,421 INFO L225 Difference]: With dead ends: 90 [2021-10-21 19:14:18,421 INFO L226 Difference]: Without dead ends: 90 [2021-10-21 19:14:18,422 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 35.4ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-21 19:14:18,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2021-10-21 19:14:18,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 60. [2021-10-21 19:14:18,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 42 states have (on average 1.3333333333333333) internal successors, (56), 45 states have internal predecessors, (56), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (9), 9 states have call predecessors, (9), 6 states have call successors, (9) [2021-10-21 19:14:18,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 72 transitions. [2021-10-21 19:14:18,430 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 72 transitions. Word has length 25 [2021-10-21 19:14:18,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:14:18,430 INFO L470 AbstractCegarLoop]: Abstraction has 60 states and 72 transitions. [2021-10-21 19:14:18,430 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-21 19:14:18,430 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 72 transitions. [2021-10-21 19:14:18,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-21 19:14:18,431 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:14:18,432 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:14:18,451 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b222bf4-2566-4dbd-b3a7-8317af4ca63b/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-21 19:14:18,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b222bf4-2566-4dbd-b3a7-8317af4ca63b/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:14:18,644 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting entry_pointErr3REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 74 more)] === [2021-10-21 19:14:18,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:14:18,644 INFO L82 PathProgramCache]: Analyzing trace with hash 1267206588, now seen corresponding path program 1 times [2021-10-21 19:14:18,644 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:14:18,645 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1790345057] [2021-10-21 19:14:18,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:14:18,645 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:14:18,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b222bf4-2566-4dbd-b3a7-8317af4ca63b/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:14:18,645 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b222bf4-2566-4dbd-b3a7-8317af4ca63b/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:14:18,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b222bf4-2566-4dbd-b3a7-8317af4ca63b/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-21 19:14:18,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:14:18,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-21 19:14:18,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:14:18,924 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-21 19:14:18,925 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:14:19,017 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-21 19:14:19,017 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:14:19,017 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1790345057] [2021-10-21 19:14:19,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1790345057] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:14:19,018 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:14:19,018 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-21 19:14:19,018 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761071939] [2021-10-21 19:14:19,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-21 19:14:19,019 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:14:19,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-21 19:14:19,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-21 19:14:19,020 INFO L87 Difference]: Start difference. First operand 60 states and 72 transitions. Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-10-21 19:14:19,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:14:19,105 INFO L93 Difference]: Finished difference Result 64 states and 76 transitions. [2021-10-21 19:14:19,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 19:14:19,106 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 25 [2021-10-21 19:14:19,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:14:19,107 INFO L225 Difference]: With dead ends: 64 [2021-10-21 19:14:19,107 INFO L226 Difference]: Without dead ends: 64 [2021-10-21 19:14:19,107 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 40.1ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-21 19:14:19,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-10-21 19:14:19,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 62. [2021-10-21 19:14:19,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 44 states have (on average 1.3181818181818181) internal successors, (58), 47 states have internal predecessors, (58), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (9), 9 states have call predecessors, (9), 6 states have call successors, (9) [2021-10-21 19:14:19,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 74 transitions. [2021-10-21 19:14:19,113 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 74 transitions. Word has length 25 [2021-10-21 19:14:19,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:14:19,113 INFO L470 AbstractCegarLoop]: Abstraction has 62 states and 74 transitions. [2021-10-21 19:14:19,114 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-10-21 19:14:19,114 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 74 transitions. [2021-10-21 19:14:19,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-21 19:14:19,115 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:14:19,115 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:14:19,124 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b222bf4-2566-4dbd-b3a7-8317af4ca63b/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-21 19:14:19,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b222bf4-2566-4dbd-b3a7-8317af4ca63b/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:14:19,326 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 74 more)] === [2021-10-21 19:14:19,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:14:19,327 INFO L82 PathProgramCache]: Analyzing trace with hash -1985214815, now seen corresponding path program 1 times [2021-10-21 19:14:19,327 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:14:19,327 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1741367001] [2021-10-21 19:14:19,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:14:19,327 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:14:19,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b222bf4-2566-4dbd-b3a7-8317af4ca63b/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:14:19,328 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b222bf4-2566-4dbd-b3a7-8317af4ca63b/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:14:19,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b222bf4-2566-4dbd-b3a7-8317af4ca63b/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-21 19:14:19,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:14:19,536 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:14:19,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:14:19,587 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-10-21 19:14:19,588 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-21 19:14:19,589 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-10-21 19:14:19,590 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION [2021-10-21 19:14:19,591 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION [2021-10-21 19:14:19,591 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION [2021-10-21 19:14:19,591 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION [2021-10-21 19:14:19,591 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION [2021-10-21 19:14:19,591 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION [2021-10-21 19:14:19,591 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION [2021-10-21 19:14:19,592 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION [2021-10-21 19:14:19,592 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION [2021-10-21 19:14:19,592 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION [2021-10-21 19:14:19,592 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION [2021-10-21 19:14:19,592 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION [2021-10-21 19:14:19,592 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION [2021-10-21 19:14:19,593 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION [2021-10-21 19:14:19,593 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION [2021-10-21 19:14:19,593 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION [2021-10-21 19:14:19,593 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION [2021-10-21 19:14:19,593 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION [2021-10-21 19:14:19,593 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION [2021-10-21 19:14:19,594 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION [2021-10-21 19:14:19,594 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION [2021-10-21 19:14:19,594 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION [2021-10-21 19:14:19,594 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION [2021-10-21 19:14:19,594 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION [2021-10-21 19:14:19,595 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION [2021-10-21 19:14:19,595 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION [2021-10-21 19:14:19,595 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION [2021-10-21 19:14:19,595 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION [2021-10-21 19:14:19,595 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION [2021-10-21 19:14:19,595 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION [2021-10-21 19:14:19,596 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION [2021-10-21 19:14:19,596 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION [2021-10-21 19:14:19,596 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION [2021-10-21 19:14:19,596 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION [2021-10-21 19:14:19,596 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION [2021-10-21 19:14:19,596 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION [2021-10-21 19:14:19,597 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION [2021-10-21 19:14:19,597 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION [2021-10-21 19:14:19,597 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION [2021-10-21 19:14:19,597 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION [2021-10-21 19:14:19,597 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION [2021-10-21 19:14:19,597 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION [2021-10-21 19:14:19,598 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:14:19,598 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:14:19,598 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:14:19,598 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:14:19,598 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:14:19,599 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:14:19,599 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION [2021-10-21 19:14:19,599 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION [2021-10-21 19:14:19,599 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION [2021-10-21 19:14:19,599 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION [2021-10-21 19:14:19,599 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION [2021-10-21 19:14:19,600 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION [2021-10-21 19:14:19,600 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION [2021-10-21 19:14:19,600 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION [2021-10-21 19:14:19,600 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:14:19,600 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:14:19,601 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:14:19,601 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:14:19,601 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:14:19,601 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:14:19,601 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION [2021-10-21 19:14:19,601 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION [2021-10-21 19:14:19,602 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION [2021-10-21 19:14:19,602 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION [2021-10-21 19:14:19,602 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION [2021-10-21 19:14:19,602 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION [2021-10-21 19:14:19,602 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION [2021-10-21 19:14:19,603 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION [2021-10-21 19:14:19,603 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr0REQUIRES_VIOLATION [2021-10-21 19:14:19,603 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr1REQUIRES_VIOLATION [2021-10-21 19:14:19,603 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr2REQUIRES_VIOLATION [2021-10-21 19:14:19,603 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr3REQUIRES_VIOLATION [2021-10-21 19:14:19,603 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:14:19,604 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:14:19,604 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:14:19,619 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b222bf4-2566-4dbd-b3a7-8317af4ca63b/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-21 19:14:19,815 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b222bf4-2566-4dbd-b3a7-8317af4ca63b/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:14:19,820 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-21 19:14:19,828 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-10-21 19:14:19,842 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 07:14:19 BoogieIcfgContainer [2021-10-21 19:14:19,842 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-21 19:14:19,843 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:14:19,843 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:14:19,843 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:14:19,843 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:11:27" (3/4) ... [2021-10-21 19:14:19,845 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-21 19:14:19,845 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:14:19,846 INFO L168 Benchmark]: Toolchain (without parser) took 174479.99 ms. Allocated memory was 60.8 MB in the beginning and 107.0 MB in the end (delta: 46.1 MB). Free memory was 36.6 MB in the beginning and 60.9 MB in the end (delta: -24.3 MB). Peak memory consumption was 20.9 MB. Max. memory is 16.1 GB. [2021-10-21 19:14:19,847 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 60.8 MB. Free memory was 41.1 MB in the beginning and 41.0 MB in the end (delta: 42.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:14:19,847 INFO L168 Benchmark]: CACSL2BoogieTranslator took 717.10 ms. Allocated memory is still 60.8 MB. Free memory was 36.4 MB in the beginning and 39.2 MB in the end (delta: -2.8 MB). Peak memory consumption was 14.6 MB. Max. memory is 16.1 GB. [2021-10-21 19:14:19,847 INFO L168 Benchmark]: Boogie Preprocessor took 130.60 ms. Allocated memory is still 60.8 MB. Free memory was 39.2 MB in the beginning and 34.4 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:14:19,847 INFO L168 Benchmark]: RCFGBuilder took 1446.96 ms. Allocated memory was 60.8 MB in the beginning and 73.4 MB in the end (delta: 12.6 MB). Free memory was 34.4 MB in the beginning and 34.6 MB in the end (delta: -151.0 kB). Peak memory consumption was 18.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:14:19,848 INFO L168 Benchmark]: TraceAbstraction took 172177.24 ms. Allocated memory was 73.4 MB in the beginning and 107.0 MB in the end (delta: 33.6 MB). Free memory was 34.4 MB in the beginning and 61.9 MB in the end (delta: -27.5 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:14:19,848 INFO L168 Benchmark]: Witness Printer took 2.79 ms. Allocated memory is still 107.0 MB. Free memory was 61.9 MB in the beginning and 60.9 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:14:19,850 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 60.8 MB. Free memory was 41.1 MB in the beginning and 41.0 MB in the end (delta: 42.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 717.10 ms. Allocated memory is still 60.8 MB. Free memory was 36.4 MB in the beginning and 39.2 MB in the end (delta: -2.8 MB). Peak memory consumption was 14.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 130.60 ms. Allocated memory is still 60.8 MB. Free memory was 39.2 MB in the beginning and 34.4 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1446.96 ms. Allocated memory was 60.8 MB in the beginning and 73.4 MB in the end (delta: 12.6 MB). Free memory was 34.4 MB in the beginning and 34.6 MB in the end (delta: -151.0 kB). Peak memory consumption was 18.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 172177.24 ms. Allocated memory was 73.4 MB in the beginning and 107.0 MB in the end (delta: 33.6 MB). Free memory was 34.4 MB in the beginning and 61.9 MB in the end (delta: -27.5 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.1 GB. * Witness Printer took 2.79 ms. Allocated memory is still 107.0 MB. Free memory was 61.9 MB in the beginning and 60.9 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 778]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 778. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; VAL [\old(ldv_global_msg_list)=null, \old(ldv_global_msg_list)=null, ldv_global_msg_list={-2147483648:0}] [L779] CALL entry_point() VAL [ldv_global_msg_list={-2147483648:0}] [L761] int len = 10; VAL [ldv_global_msg_list={-2147483648:0}, len=10] [L762] CALL, EXPR ldv_malloc(sizeof(struct A18*)*len) VAL [\old(size)=40, ldv_global_msg_list={-2147483648:0}] [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L762] RET, EXPR ldv_malloc(sizeof(struct A18*)*len) VAL [ldv_global_msg_list={-2147483648:0}, ldv_malloc(sizeof(struct A18*)*len)={1:0}, len=10] [L762] struct A18 **array = (struct A18 **)ldv_malloc(sizeof(struct A18*)*len); [L763] struct A18 *p; [L764] int i=0; [L765] int j; VAL [array={1:0}, i=0, ldv_global_msg_list={-2147483648:0}, len=10] [L766] COND FALSE !(!array) VAL [array={1:0}, i=0, ldv_global_msg_list={-2147483648:0}, len=10] [L767] COND TRUE i=0) VAL [array={1:0}, i=0, j=4294967295, ldv_global_msg_list={-2147483648:0}, len=10, p={0:0}] [L779] RET entry_point() VAL [ldv_global_msg_list={-2147483648:0}] - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 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: 774]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 774]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 774]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 774]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 774]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 47 procedures, 351 locations, 78 error locations. Started 1 CEGAR loops. OverallTime: 172099.9ms, OverallIterations: 9, TraceHistogramMax: 2, EmptinessCheckTime: 32.5ms, AutomataDifference: 145722.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 13.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 378 SDtfs, 640 SDslu, 1125 SDs, 0 SdLazy, 889 SolverSat, 131 SolverUnsat, 54 SolverUnknown, 0 SolverNotchecked, 113892.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 361 GetRequests, 289 SyntacticMatches, 6 SemanticMatches, 66 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 45168.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=111occurred in iteration=0, InterpolantAutomatonStates: 63, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 116.7ms AutomataMinimizationTime, 8 MinimizatonAttempts, 304 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 90.7ms SsaConstructionTime, 242.6ms SatisfiabilityAnalysisTime, 22389.3ms InterpolantComputationTime, 198 NumberOfCodeBlocks, 198 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 326 ConstructedInterpolants, 19 QuantifiedInterpolants, 1576 SizeOfPredicates, 12 NumberOfNonLiveVariables, 719 ConjunctsInSsa, 52 ConjunctsInUnsatCore, 16 InterpolantComputations, 11 PerfectInterpolantSequences, 28/40 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 [2021-10-21 19:14:19,916 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b222bf4-2566-4dbd-b3a7-8317af4ca63b/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...