./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test19-2.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_fa8d5dd3-0ee9-4384-bc39-c2885feb53c7/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8d5dd3-0ee9-4384-bc39-c2885feb53c7/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_fa8d5dd3-0ee9-4384-bc39-c2885feb53c7/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8d5dd3-0ee9-4384-bc39-c2885feb53c7/bin/uautomizer-j4sWxH34Be/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test19-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8d5dd3-0ee9-4384-bc39-c2885feb53c7/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_fa8d5dd3-0ee9-4384-bc39-c2885feb53c7/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 1df2ca055a97db0a00e0c4b03f212c5ac3c2765d37b628ab5708f179a281754f ................................................................................................................................... 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_fa8d5dd3-0ee9-4384-bc39-c2885feb53c7/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8d5dd3-0ee9-4384-bc39-c2885feb53c7/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_fa8d5dd3-0ee9-4384-bc39-c2885feb53c7/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8d5dd3-0ee9-4384-bc39-c2885feb53c7/bin/uautomizer-j4sWxH34Be/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test19-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8d5dd3-0ee9-4384-bc39-c2885feb53c7/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_fa8d5dd3-0ee9-4384-bc39-c2885feb53c7/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 1df2ca055a97db0a00e0c4b03f212c5ac3c2765d37b628ab5708f179a281754f .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 19:02:24,876 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:02:24,878 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:02:24,927 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:02:24,928 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:02:24,932 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:02:24,934 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:02:24,939 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:02:24,941 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:02:24,950 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:02:24,951 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:02:24,953 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:02:24,954 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:02:24,957 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:02:24,959 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:02:24,965 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:02:24,967 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:02:24,968 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:02:24,970 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:02:24,978 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:02:24,981 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:02:24,983 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:02:24,986 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:02:24,987 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:02:24,996 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:02:24,996 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:02:24,996 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:02:24,997 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:02:24,998 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:02:24,999 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:02:25,000 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:02:25,000 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:02:25,001 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:02:25,002 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:02:25,003 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:02:25,003 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:02:25,004 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:02:25,004 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:02:25,004 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:02:25,005 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:02:25,006 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:02:25,007 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8d5dd3-0ee9-4384-bc39-c2885feb53c7/bin/uautomizer-j4sWxH34Be/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-10-21 19:02:25,031 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:02:25,031 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:02:25,032 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:02:25,032 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:02:25,033 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:02:25,033 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:02:25,033 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:02:25,034 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:02:25,034 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:02:25,034 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 19:02:25,034 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:02:25,034 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:02:25,035 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:02:25,035 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-21 19:02:25,035 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-21 19:02:25,035 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-21 19:02:25,035 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 19:02:25,036 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-21 19:02:25,036 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:02:25,036 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:02:25,036 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:02:25,036 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:02:25,037 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 19:02:25,037 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:02:25,037 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:02:25,037 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 19:02:25,037 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:02:25,038 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-21 19:02:25,038 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:02:25,038 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_fa8d5dd3-0ee9-4384-bc39-c2885feb53c7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8d5dd3-0ee9-4384-bc39-c2885feb53c7/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1df2ca055a97db0a00e0c4b03f212c5ac3c2765d37b628ab5708f179a281754f [2021-10-21 19:02:25,265 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:02:25,287 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:02:25,289 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:02:25,290 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:02:25,291 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:02:25,292 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8d5dd3-0ee9-4384-bc39-c2885feb53c7/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/ldv-memsafety/memleaks_test19-2.i [2021-10-21 19:02:25,373 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8d5dd3-0ee9-4384-bc39-c2885feb53c7/bin/uautomizer-j4sWxH34Be/data/a9906386e/4b2c988c2d244dcbbb197d57e971a0c6/FLAGb0c92c286 [2021-10-21 19:02:25,912 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:02:25,913 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8d5dd3-0ee9-4384-bc39-c2885feb53c7/sv-benchmarks/c/ldv-memsafety/memleaks_test19-2.i [2021-10-21 19:02:25,941 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8d5dd3-0ee9-4384-bc39-c2885feb53c7/bin/uautomizer-j4sWxH34Be/data/a9906386e/4b2c988c2d244dcbbb197d57e971a0c6/FLAGb0c92c286 [2021-10-21 19:02:26,201 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8d5dd3-0ee9-4384-bc39-c2885feb53c7/bin/uautomizer-j4sWxH34Be/data/a9906386e/4b2c988c2d244dcbbb197d57e971a0c6 [2021-10-21 19:02:26,203 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:02:26,205 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-21 19:02:26,207 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:02:26,207 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:02:26,211 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:02:26,212 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:02:26" (1/1) ... [2021-10-21 19:02:26,213 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@560e2d4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:02:26, skipping insertion in model container [2021-10-21 19:02:26,213 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:02:26" (1/1) ... [2021-10-21 19:02:26,220 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:02:26,269 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:02:26,756 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:02:26,778 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 19:02:26,778 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@21046e69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:02:26, skipping insertion in model container [2021-10-21 19:02:26,778 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:02:26,779 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-10-21 19:02:26,782 INFO L168 Benchmark]: Toolchain (without parser) took 574.90 ms. Allocated memory is still 125.8 MB. Free memory was 91.0 MB in the beginning and 96.1 MB in the end (delta: -5.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:02:26,783 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 98.6 MB. Free memory is still 54.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:02:26,785 INFO L168 Benchmark]: CACSL2BoogieTranslator took 572.08 ms. Allocated memory is still 125.8 MB. Free memory was 90.7 MB in the beginning and 96.1 MB in the end (delta: -5.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:02:26,787 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 98.6 MB. Free memory is still 54.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 572.08 ms. Allocated memory is still 125.8 MB. Free memory was 90.7 MB in the beginning and 96.1 MB in the end (delta: -5.5 MB). Peak memory consumption was 8.4 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 19:02:29,085 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:02:29,088 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:02:29,140 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:02:29,141 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:02:29,146 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:02:29,148 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:02:29,154 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:02:29,157 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:02:29,163 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:02:29,165 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:02:29,166 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:02:29,167 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:02:29,170 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:02:29,172 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:02:29,176 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:02:29,178 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:02:29,179 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:02:29,181 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:02:29,188 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:02:29,191 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:02:29,192 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:02:29,195 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:02:29,197 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:02:29,206 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:02:29,207 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:02:29,207 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:02:29,209 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:02:29,210 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:02:29,211 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:02:29,212 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:02:29,212 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:02:29,214 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:02:29,216 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:02:29,217 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:02:29,217 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:02:29,218 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:02:29,219 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:02:29,219 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:02:29,221 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:02:29,222 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:02:29,223 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8d5dd3-0ee9-4384-bc39-c2885feb53c7/bin/uautomizer-j4sWxH34Be/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-21 19:02:29,266 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:02:29,266 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:02:29,267 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:02:29,267 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:02:29,269 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:02:29,269 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:02:29,270 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:02:29,271 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:02:29,271 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:02:29,271 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 19:02:29,272 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:02:29,273 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:02:29,273 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:02:29,273 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-21 19:02:29,274 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-21 19:02:29,274 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-21 19:02:29,274 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 19:02:29,275 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-21 19:02:29,275 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-21 19:02:29,275 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-21 19:02:29,276 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:02:29,276 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:02:29,276 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:02:29,277 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:02:29,277 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 19:02:29,277 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:02:29,278 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:02:29,278 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 19:02:29,278 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-21 19:02:29,279 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-21 19:02:29,279 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:02:29,279 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-21 19:02:29,280 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_fa8d5dd3-0ee9-4384-bc39-c2885feb53c7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8d5dd3-0ee9-4384-bc39-c2885feb53c7/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1df2ca055a97db0a00e0c4b03f212c5ac3c2765d37b628ab5708f179a281754f [2021-10-21 19:02:29,686 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:02:29,723 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:02:29,726 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:02:29,727 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:02:29,728 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:02:29,731 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8d5dd3-0ee9-4384-bc39-c2885feb53c7/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/ldv-memsafety/memleaks_test19-2.i [2021-10-21 19:02:29,808 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8d5dd3-0ee9-4384-bc39-c2885feb53c7/bin/uautomizer-j4sWxH34Be/data/1518790f7/1591e2798b5446a5a577df10c1732610/FLAGf4f800173 [2021-10-21 19:02:30,400 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:02:30,401 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8d5dd3-0ee9-4384-bc39-c2885feb53c7/sv-benchmarks/c/ldv-memsafety/memleaks_test19-2.i [2021-10-21 19:02:30,418 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8d5dd3-0ee9-4384-bc39-c2885feb53c7/bin/uautomizer-j4sWxH34Be/data/1518790f7/1591e2798b5446a5a577df10c1732610/FLAGf4f800173 [2021-10-21 19:02:30,669 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8d5dd3-0ee9-4384-bc39-c2885feb53c7/bin/uautomizer-j4sWxH34Be/data/1518790f7/1591e2798b5446a5a577df10c1732610 [2021-10-21 19:02:30,671 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:02:30,672 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-21 19:02:30,674 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:02:30,674 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:02:30,682 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:02:30,683 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:02:30" (1/1) ... [2021-10-21 19:02:30,684 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@675eae04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:02:30, skipping insertion in model container [2021-10-21 19:02:30,684 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:02:30" (1/1) ... [2021-10-21 19:02:30,692 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:02:30,743 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:02:31,162 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:02:31,180 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-21 19:02:31,194 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:02:31,236 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:02:31,245 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:02:31,294 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:02:31,341 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:02:31,342 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:02:31 WrapperNode [2021-10-21 19:02:31,342 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:02:31,343 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:02:31,343 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:02:31,343 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:02:31,355 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:02:31" (1/1) ... [2021-10-21 19:02:31,356 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:02:31" (1/1) ... [2021-10-21 19:02:31,380 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:02:31" (1/1) ... [2021-10-21 19:02:31,381 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:02:31" (1/1) ... [2021-10-21 19:02:31,416 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:02:31" (1/1) ... [2021-10-21 19:02:31,422 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:02:31" (1/1) ... [2021-10-21 19:02:31,429 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:02:31" (1/1) ... [2021-10-21 19:02:31,451 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:02:31,452 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:02:31,452 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:02:31,452 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:02:31,453 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:02:31" (1/1) ... [2021-10-21 19:02:31,464 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:02:31,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8d5dd3-0ee9-4384-bc39-c2885feb53c7/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:02:31,492 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8d5dd3-0ee9-4384-bc39-c2885feb53c7/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-21 19:02:31,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8d5dd3-0ee9-4384-bc39-c2885feb53c7/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-21 19:02:31,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-21 19:02:31,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:02:31,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-10-21 19:02:31,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-10-21 19:02:31,553 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-10-21 19:02:31,556 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-10-21 19:02:31,556 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-10-21 19:02:31,556 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-10-21 19:02:31,556 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-10-21 19:02:31,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-10-21 19:02:31,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-10-21 19:02:31,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-10-21 19:02:31,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-10-21 19:02:31,557 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-10-21 19:02:31,562 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-10-21 19:02:31,562 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-10-21 19:02:31,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-10-21 19:02:31,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-10-21 19:02:31,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-10-21 19:02:31,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-10-21 19:02:31,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-10-21 19:02:31,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-10-21 19:02:31,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-10-21 19:02:31,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-10-21 19:02:31,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-10-21 19:02:31,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-10-21 19:02:31,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-10-21 19:02:31,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-10-21 19:02:31,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-10-21 19:02:31,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-10-21 19:02:31,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-10-21 19:02:31,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-10-21 19:02:31,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-10-21 19:02:31,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-10-21 19:02:31,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-10-21 19:02:31,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-10-21 19:02:31,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-10-21 19:02:31,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-10-21 19:02:31,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-10-21 19:02:31,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-10-21 19:02:31,565 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-10-21 19:02:31,566 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-10-21 19:02:31,566 INFO L138 BoogieDeclarations]: Found implementation of procedure f19 [2021-10-21 19:02:31,566 INFO L138 BoogieDeclarations]: Found implementation of procedure f19_undo [2021-10-21 19:02:31,567 INFO L138 BoogieDeclarations]: Found implementation of procedure g19 [2021-10-21 19:02:31,567 INFO L138 BoogieDeclarations]: Found implementation of procedure probe_unsafe_19 [2021-10-21 19:02:31,567 INFO L138 BoogieDeclarations]: Found implementation of procedure disconnect_19 [2021-10-21 19:02:31,568 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-10-21 19:02:31,568 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-21 19:02:31,568 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-10-21 19:02:31,569 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-10-21 19:02:31,569 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-10-21 19:02:31,569 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-10-21 19:02:31,569 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-10-21 19:02:31,569 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-10-21 19:02:31,569 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-10-21 19:02:31,569 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-10-21 19:02:31,569 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-10-21 19:02:31,570 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-10-21 19:02:31,570 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-10-21 19:02:31,571 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-10-21 19:02:31,571 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-10-21 19:02:31,572 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-10-21 19:02:31,572 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-10-21 19:02:31,573 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-10-21 19:02:31,573 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-10-21 19:02:31,573 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-10-21 19:02:31,573 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-10-21 19:02:31,574 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-10-21 19:02:31,574 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-10-21 19:02:31,574 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-10-21 19:02:31,574 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-10-21 19:02:31,574 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-10-21 19:02:31,574 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-10-21 19:02:31,574 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-10-21 19:02:31,574 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-10-21 19:02:31,575 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-10-21 19:02:31,575 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-10-21 19:02:31,576 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-10-21 19:02:31,576 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-10-21 19:02:31,576 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-10-21 19:02:31,576 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-10-21 19:02:31,576 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-10-21 19:02:31,576 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-10-21 19:02:31,576 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-10-21 19:02:31,576 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-10-21 19:02:31,576 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-10-21 19:02:31,576 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-10-21 19:02:31,577 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-10-21 19:02:31,577 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-10-21 19:02:31,577 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-10-21 19:02:31,577 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-10-21 19:02:31,577 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-10-21 19:02:31,577 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-10-21 19:02:31,577 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-10-21 19:02:31,577 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-10-21 19:02:31,577 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-10-21 19:02:31,577 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-10-21 19:02:31,577 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-10-21 19:02:31,577 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-10-21 19:02:31,577 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-10-21 19:02:31,578 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-10-21 19:02:31,578 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-10-21 19:02:31,578 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-10-21 19:02:31,578 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-10-21 19:02:31,578 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-10-21 19:02:31,578 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-10-21 19:02:31,578 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-10-21 19:02:31,579 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-10-21 19:02:31,579 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-10-21 19:02:31,579 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-10-21 19:02:31,579 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-10-21 19:02:31,579 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-10-21 19:02:31,579 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-10-21 19:02:31,579 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-10-21 19:02:31,579 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-21 19:02:31,579 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-10-21 19:02:31,580 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-10-21 19:02:31,580 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-10-21 19:02:31,580 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-10-21 19:02:31,580 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-10-21 19:02:31,580 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-10-21 19:02:31,581 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-10-21 19:02:31,582 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-10-21 19:02:31,584 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-10-21 19:02:31,585 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-10-21 19:02:31,585 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-10-21 19:02:31,585 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-10-21 19:02:31,586 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-10-21 19:02:31,588 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-10-21 19:02:31,588 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-10-21 19:02:31,588 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-10-21 19:02:31,589 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-10-21 19:02:31,593 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-10-21 19:02:31,593 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-10-21 19:02:31,593 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-10-21 19:02:31,593 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-10-21 19:02:31,594 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-10-21 19:02:31,594 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-10-21 19:02:31,594 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-10-21 19:02:31,594 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-10-21 19:02:31,594 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-10-21 19:02:31,594 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-10-21 19:02:31,594 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-10-21 19:02:31,594 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-10-21 19:02:31,594 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-10-21 19:02:31,595 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-10-21 19:02:31,595 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-10-21 19:02:31,595 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-10-21 19:02:31,595 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-10-21 19:02:31,595 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-10-21 19:02:31,595 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-10-21 19:02:31,595 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-10-21 19:02:31,595 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-10-21 19:02:31,596 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-10-21 19:02:31,596 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-10-21 19:02:31,596 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-10-21 19:02:31,596 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-10-21 19:02:31,596 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-10-21 19:02:31,596 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-10-21 19:02:31,596 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-21 19:02:31,596 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-10-21 19:02:31,596 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-10-21 19:02:31,597 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-10-21 19:02:31,597 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-10-21 19:02:31,597 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-10-21 19:02:31,597 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-21 19:02:31,597 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-10-21 19:02:31,597 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-10-21 19:02:31,597 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-10-21 19:02:31,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-21 19:02:31,597 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-10-21 19:02:31,598 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-10-21 19:02:31,598 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-10-21 19:02:31,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-21 19:02:31,598 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-10-21 19:02:31,598 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-10-21 19:02:31,598 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-10-21 19:02:31,598 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-10-21 19:02:31,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-10-21 19:02:31,598 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-10-21 19:02:31,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-21 19:02:31,599 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-10-21 19:02:31,599 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-10-21 19:02:31,599 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-10-21 19:02:31,599 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-10-21 19:02:31,599 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-10-21 19:02:31,599 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-21 19:02:31,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-21 19:02:31,599 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-10-21 19:02:31,600 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-10-21 19:02:31,600 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-10-21 19:02:31,600 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-10-21 19:02:31,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-10-21 19:02:31,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-10-21 19:02:31,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-10-21 19:02:31,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-10-21 19:02:31,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-10-21 19:02:31,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-10-21 19:02:31,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-10-21 19:02:31,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-10-21 19:02:31,604 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-10-21 19:02:31,604 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-10-21 19:02:31,604 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-10-21 19:02:31,604 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-10-21 19:02:31,604 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-10-21 19:02:31,604 INFO L130 BoogieDeclarations]: Found specification of procedure f19 [2021-10-21 19:02:31,604 INFO L130 BoogieDeclarations]: Found specification of procedure f19_undo [2021-10-21 19:02:31,604 INFO L130 BoogieDeclarations]: Found specification of procedure g19 [2021-10-21 19:02:31,604 INFO L130 BoogieDeclarations]: Found specification of procedure probe_unsafe_19 [2021-10-21 19:02:31,605 INFO L130 BoogieDeclarations]: Found specification of procedure disconnect_19 [2021-10-21 19:02:31,605 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-10-21 19:02:31,605 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:02:31,605 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-21 19:02:31,605 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-21 19:02:31,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-21 19:02:31,605 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:02:31,606 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-10-21 19:02:31,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-10-21 19:02:31,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-10-21 19:02:31,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-10-21 19:02:31,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-10-21 19:02:32,306 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-21 19:02:32,796 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-21 19:02:33,109 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:02:33,109 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-10-21 19:02:33,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:02:33 BoogieIcfgContainer [2021-10-21 19:02:33,117 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:02:33,118 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-21 19:02:33,118 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-21 19:02:33,128 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-21 19:02:33,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 07:02:30" (1/3) ... [2021-10-21 19:02:33,129 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a406db0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:02:33, skipping insertion in model container [2021-10-21 19:02:33,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:02:31" (2/3) ... [2021-10-21 19:02:33,130 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a406db0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:02:33, skipping insertion in model container [2021-10-21 19:02:33,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:02:33" (3/3) ... [2021-10-21 19:02:33,131 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test19-2.i [2021-10-21 19:02:33,136 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-21 19:02:33,137 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 94 error locations. [2021-10-21 19:02:33,179 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-21 19:02:33,185 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 19:02:33,185 INFO L340 AbstractCegarLoop]: Starting to check reachability of 94 error locations. [2021-10-21 19:02:33,203 INFO L276 IsEmpty]: Start isEmpty. Operand has 161 states, 86 states have (on average 1.6046511627906976) internal successors, (138), 129 states have internal predecessors, (138), 18 states have call successors, (18), 15 states have call predecessors, (18), 15 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2021-10-21 19:02:33,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-21 19:02:33,211 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:02:33,212 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:02:33,213 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting probe_unsafe_19Err0REQUIRES_VIOLATION === [f19_undoErr0REQUIRES_VIOLATION, f19_undoErr1REQUIRES_VIOLATION, f19_undoErr2ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr3ASSERT_VIOLATIONMEMORY_FREE (and 90 more)] === [2021-10-21 19:02:33,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:02:33,218 INFO L82 PathProgramCache]: Analyzing trace with hash -498135161, now seen corresponding path program 1 times [2021-10-21 19:02:33,230 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:02:33,231 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1442672797] [2021-10-21 19:02:33,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:02:33,239 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:02:33,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8d5dd3-0ee9-4384-bc39-c2885feb53c7/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:02:33,256 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8d5dd3-0ee9-4384-bc39-c2885feb53c7/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:02:33,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8d5dd3-0ee9-4384-bc39-c2885feb53c7/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-21 19:02:33,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:02:33,518 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-21 19:02:33,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:02:33,616 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 19:02:33,793 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-10-21 19:02:33,797 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 15 treesize of output 20 [2021-10-21 19:02:33,847 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 19:02:33,847 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:02:34,154 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 19:02:34,155 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:02:34,155 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1442672797] [2021-10-21 19:02:34,156 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1442672797] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:02:34,156 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:02:34,156 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 5] imperfect sequences [] total 7 [2021-10-21 19:02:34,158 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168323262] [2021-10-21 19:02:34,163 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-21 19:02:34,164 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:02:34,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-21 19:02:34,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-10-21 19:02:34,185 INFO L87 Difference]: Start difference. First operand has 161 states, 86 states have (on average 1.6046511627906976) internal successors, (138), 129 states have internal predecessors, (138), 18 states have call successors, (18), 15 states have call predecessors, (18), 15 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 8 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 7 states have internal predecessors, (11), 3 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-21 19:02:39,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:02:39,294 INFO L93 Difference]: Finished difference Result 169 states and 192 transitions. [2021-10-21 19:02:39,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-21 19:02:39,296 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 7 states have internal predecessors, (11), 3 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 15 [2021-10-21 19:02:39,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:02:39,307 INFO L225 Difference]: With dead ends: 169 [2021-10-21 19:02:39,308 INFO L226 Difference]: Without dead ends: 166 [2021-10-21 19:02:39,309 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 19 SyntacticMatches, 4 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 307.8ms TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2021-10-21 19:02:39,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2021-10-21 19:02:39,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 87. [2021-10-21 19:02:39,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 46 states have (on average 1.608695652173913) internal successors, (74), 68 states have internal predecessors, (74), 11 states have call successors, (11), 9 states have call predecessors, (11), 8 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2021-10-21 19:02:39,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 95 transitions. [2021-10-21 19:02:39,358 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 95 transitions. Word has length 15 [2021-10-21 19:02:39,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:02:39,358 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 95 transitions. [2021-10-21 19:02:39,358 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 7 states have internal predecessors, (11), 3 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-21 19:02:39,359 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 95 transitions. [2021-10-21 19:02:39,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-21 19:02:39,360 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:02:39,360 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:02:39,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8d5dd3-0ee9-4384-bc39-c2885feb53c7/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-21 19:02:39,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8d5dd3-0ee9-4384-bc39-c2885feb53c7/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:02:39,562 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting probe_unsafe_19Err1REQUIRES_VIOLATION === [f19_undoErr0REQUIRES_VIOLATION, f19_undoErr1REQUIRES_VIOLATION, f19_undoErr2ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr3ASSERT_VIOLATIONMEMORY_FREE (and 90 more)] === [2021-10-21 19:02:39,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:02:39,562 INFO L82 PathProgramCache]: Analyzing trace with hash -498135160, now seen corresponding path program 1 times [2021-10-21 19:02:39,563 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:02:39,563 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2119957335] [2021-10-21 19:02:39,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:02:39,564 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:02:39,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8d5dd3-0ee9-4384-bc39-c2885feb53c7/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:02:39,567 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8d5dd3-0ee9-4384-bc39-c2885feb53c7/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:02:39,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8d5dd3-0ee9-4384-bc39-c2885feb53c7/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-21 19:02:39,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:02:39,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-21 19:02:39,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:02:39,768 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 19:02:39,774 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 19:02:42,005 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-10-21 19:02:42,005 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 30 treesize of output 32 [2021-10-21 19:02:42,018 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-21 19:02:42,018 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 24 treesize of output 24 [2021-10-21 19:02:42,058 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 19:02:42,058 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:02:48,220 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 19:02:48,220 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:02:48,220 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2119957335] [2021-10-21 19:02:48,220 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2119957335] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:02:48,221 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:02:48,221 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2021-10-21 19:02:48,221 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495724968] [2021-10-21 19:02:48,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-21 19:02:48,222 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:02:48,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-21 19:02:48,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=147, Unknown=2, NotChecked=0, Total=182 [2021-10-21 19:02:48,224 INFO L87 Difference]: Start difference. First operand 87 states and 95 transitions. Second operand has 14 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 10 states have internal predecessors, (14), 5 states have call successors, (7), 5 states have call predecessors, (7), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-10-21 19:06:57,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:06:57,385 INFO L93 Difference]: Finished difference Result 163 states and 188 transitions. [2021-10-21 19:06:57,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-21 19:06:57,385 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 10 states have internal predecessors, (14), 5 states have call successors, (7), 5 states have call predecessors, (7), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 15 [2021-10-21 19:06:57,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:06:57,388 INFO L225 Difference]: With dead ends: 163 [2021-10-21 19:06:57,388 INFO L226 Difference]: Without dead ends: 163 [2021-10-21 19:06:57,390 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 28937.6ms TimeCoverageRelationStatistics Valid=116, Invalid=423, Unknown=13, NotChecked=0, Total=552 [2021-10-21 19:06:57,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2021-10-21 19:06:57,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 84. [2021-10-21 19:06:57,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 46 states have (on average 1.5217391304347827) internal successors, (70), 65 states have internal predecessors, (70), 11 states have call successors, (11), 9 states have call predecessors, (11), 8 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2021-10-21 19:06:57,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 91 transitions. [2021-10-21 19:06:57,404 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 91 transitions. Word has length 15 [2021-10-21 19:06:57,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:06:57,404 INFO L470 AbstractCegarLoop]: Abstraction has 84 states and 91 transitions. [2021-10-21 19:06:57,404 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 10 states have internal predecessors, (14), 5 states have call successors, (7), 5 states have call predecessors, (7), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-10-21 19:06:57,405 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 91 transitions. [2021-10-21 19:06:57,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-21 19:06:57,406 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:06:57,406 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, 1] [2021-10-21 19:06:57,417 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8d5dd3-0ee9-4384-bc39-c2885feb53c7/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-10-21 19:06:57,611 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8d5dd3-0ee9-4384-bc39-c2885feb53c7/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:06:57,611 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting f19Err0REQUIRES_VIOLATION === [f19_undoErr0REQUIRES_VIOLATION, f19_undoErr1REQUIRES_VIOLATION, f19_undoErr2ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr3ASSERT_VIOLATIONMEMORY_FREE (and 90 more)] === [2021-10-21 19:06:57,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:06:57,612 INFO L82 PathProgramCache]: Analyzing trace with hash 593639727, now seen corresponding path program 1 times [2021-10-21 19:06:57,612 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:06:57,613 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1727636808] [2021-10-21 19:06:57,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:06:57,613 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:06:57,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8d5dd3-0ee9-4384-bc39-c2885feb53c7/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:06:57,614 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8d5dd3-0ee9-4384-bc39-c2885feb53c7/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:06:57,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8d5dd3-0ee9-4384-bc39-c2885feb53c7/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-21 19:06:57,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:06:57,833 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-21 19:06:57,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:06:58,069 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-10-21 19:06:58,070 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 24 [2021-10-21 19:06:58,108 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 19:06:58,108 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:06:58,473 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 19:06:58,474 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:06:58,474 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1727636808] [2021-10-21 19:06:58,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1727636808] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:06:58,474 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:06:58,474 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 5] imperfect sequences [] total 7 [2021-10-21 19:06:58,475 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454431313] [2021-10-21 19:06:58,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-21 19:06:58,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:06:58,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-21 19:06:58,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-10-21 19:06:58,477 INFO L87 Difference]: Start difference. First operand 84 states and 91 transitions. Second operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-21 19:06:59,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:06:59,661 INFO L93 Difference]: Finished difference Result 151 states and 175 transitions. [2021-10-21 19:06:59,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-21 19:06:59,662 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 26 [2021-10-21 19:06:59,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:06:59,664 INFO L225 Difference]: With dead ends: 151 [2021-10-21 19:06:59,664 INFO L226 Difference]: Without dead ends: 151 [2021-10-21 19:06:59,664 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 40 SyntacticMatches, 6 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 536.5ms TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2021-10-21 19:06:59,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2021-10-21 19:06:59,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 82. [2021-10-21 19:06:59,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 46 states have (on average 1.4782608695652173) internal successors, (68), 63 states have internal predecessors, (68), 11 states have call successors, (11), 9 states have call predecessors, (11), 8 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2021-10-21 19:06:59,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 89 transitions. [2021-10-21 19:06:59,677 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 89 transitions. Word has length 26 [2021-10-21 19:06:59,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:06:59,678 INFO L470 AbstractCegarLoop]: Abstraction has 82 states and 89 transitions. [2021-10-21 19:06:59,678 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-21 19:06:59,678 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 89 transitions. [2021-10-21 19:06:59,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-21 19:06:59,679 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:06:59,680 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, 1] [2021-10-21 19:06:59,691 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8d5dd3-0ee9-4384-bc39-c2885feb53c7/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-21 19:06:59,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8d5dd3-0ee9-4384-bc39-c2885feb53c7/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:06:59,883 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting f19Err1REQUIRES_VIOLATION === [f19_undoErr0REQUIRES_VIOLATION, f19_undoErr1REQUIRES_VIOLATION, f19_undoErr2ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr3ASSERT_VIOLATIONMEMORY_FREE (and 90 more)] === [2021-10-21 19:06:59,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:06:59,884 INFO L82 PathProgramCache]: Analyzing trace with hash 593639728, now seen corresponding path program 1 times [2021-10-21 19:06:59,884 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:06:59,885 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1921110372] [2021-10-21 19:06:59,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:06:59,885 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:06:59,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8d5dd3-0ee9-4384-bc39-c2885feb53c7/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:06:59,886 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8d5dd3-0ee9-4384-bc39-c2885feb53c7/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:06:59,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8d5dd3-0ee9-4384-bc39-c2885feb53c7/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-21 19:07:00,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:07:00,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 20 conjunts are in the unsatisfiable core [2021-10-21 19:07:00,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:07:02,732 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-10-21 19:07:02,732 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 37 treesize of output 39 [2021-10-21 19:07:02,754 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-21 19:07:02,755 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 31 treesize of output 31 [2021-10-21 19:07:02,837 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 19:07:02,837 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:07:11,891 WARN L860 $PredicateComparison]: unable to prove that (forall ((v_f19_~a.base_BEFORE_CALL_4 (_ BitVec 32)) (|v_ldv_malloc_#res.base_21| (_ BitVec 32)) (v_f19_~a.offset_BEFORE_CALL_2 (_ BitVec 32))) (or (exists ((|v_ldv_malloc_#res.base_20| (_ BitVec 32))) (and (= (_ bv0 1) (bvneg (select |c_old(#valid)| |v_ldv_malloc_#res.base_20|))) (or (not (bvule v_f19_~a.offset_BEFORE_CALL_2 (bvadd (_ bv4 32) v_f19_~a.offset_BEFORE_CALL_2))) (exists ((v_ldv_malloc_~size_20 (_ BitVec 32))) (not (bvule (bvadd (_ bv4 32) v_f19_~a.offset_BEFORE_CALL_2) (select (store |c_old(#length)| |v_ldv_malloc_#res.base_20| v_ldv_malloc_~size_20) v_f19_~a.base_BEFORE_CALL_4))))))) (and (forall ((ldv_malloc_~size (_ BitVec 32))) (bvule (bvadd (_ bv4 32) v_f19_~a.offset_BEFORE_CALL_2) (select (store |c_#length| |v_ldv_malloc_#res.base_21| ldv_malloc_~size) v_f19_~a.base_BEFORE_CALL_4))) (bvule v_f19_~a.offset_BEFORE_CALL_2 (bvadd (_ bv4 32) v_f19_~a.offset_BEFORE_CALL_2))) (not (= (_ bv0 1) (select |c_#valid| |v_ldv_malloc_#res.base_21|))))) is different from true [2021-10-21 19:07:13,904 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 56 treesize of output 52 [2021-10-21 19:07:13,948 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-10-21 19:07:13,948 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 52 treesize of output 51 [2021-10-21 19:07:14,524 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 19:07:14,525 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:07:14,525 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1921110372] [2021-10-21 19:07:14,525 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1921110372] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:07:14,525 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:07:14,525 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 19 [2021-10-21 19:07:14,525 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926817851] [2021-10-21 19:07:14,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-10-21 19:07:14,526 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:07:14,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-21 19:07:14,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=4, NotChecked=34, Total=380 [2021-10-21 19:07:14,527 INFO L87 Difference]: Start difference. First operand 82 states and 89 transitions. Second operand has 20 states, 15 states have (on average 1.8) internal successors, (27), 14 states have internal predecessors, (27), 9 states have call successors, (11), 7 states have call predecessors, (11), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-10-21 19:08:03,990 WARN L838 $PredicateComparison]: unable to prove that (and (= |c_old(#valid)| |c_#valid|) (= |c_#length| |c_old(#length)|) (forall ((v_f19_~a.base_BEFORE_CALL_4 (_ BitVec 32)) (|v_ldv_malloc_#res.base_21| (_ BitVec 32)) (v_f19_~a.offset_BEFORE_CALL_2 (_ BitVec 32))) (or (exists ((|v_ldv_malloc_#res.base_20| (_ BitVec 32))) (and (= (_ bv0 1) (bvneg (select |c_old(#valid)| |v_ldv_malloc_#res.base_20|))) (or (not (bvule v_f19_~a.offset_BEFORE_CALL_2 (bvadd (_ bv4 32) v_f19_~a.offset_BEFORE_CALL_2))) (exists ((v_ldv_malloc_~size_20 (_ BitVec 32))) (not (bvule (bvadd (_ bv4 32) v_f19_~a.offset_BEFORE_CALL_2) (select (store |c_old(#length)| |v_ldv_malloc_#res.base_20| v_ldv_malloc_~size_20) v_f19_~a.base_BEFORE_CALL_4))))))) (and (forall ((ldv_malloc_~size (_ BitVec 32))) (bvule (bvadd (_ bv4 32) v_f19_~a.offset_BEFORE_CALL_2) (select (store |c_#length| |v_ldv_malloc_#res.base_21| ldv_malloc_~size) v_f19_~a.base_BEFORE_CALL_4))) (bvule v_f19_~a.offset_BEFORE_CALL_2 (bvadd (_ bv4 32) v_f19_~a.offset_BEFORE_CALL_2))) (not (= (_ bv0 1) (select |c_#valid| |v_ldv_malloc_#res.base_21|)))))) is different from false [2021-10-21 19:08:53,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:08:53,848 INFO L93 Difference]: Finished difference Result 129 states and 146 transitions. [2021-10-21 19:08:53,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-21 19:08:53,848 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 15 states have (on average 1.8) internal successors, (27), 14 states have internal predecessors, (27), 9 states have call successors, (11), 7 states have call predecessors, (11), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 26 [2021-10-21 19:08:53,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:08:53,850 INFO L225 Difference]: With dead ends: 129 [2021-10-21 19:08:53,850 INFO L226 Difference]: Without dead ends: 129 [2021-10-21 19:08:53,851 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 35494.3ms TimeCoverageRelationStatistics Valid=168, Invalid=949, Unknown=13, NotChecked=130, Total=1260 [2021-10-21 19:08:53,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2021-10-21 19:08:53,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 88. [2021-10-21 19:08:53,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 51 states have (on average 1.4313725490196079) internal successors, (73), 67 states have internal predecessors, (73), 11 states have call successors, (11), 10 states have call predecessors, (11), 10 states have return successors, (12), 11 states have call predecessors, (12), 10 states have call successors, (12) [2021-10-21 19:08:53,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 96 transitions. [2021-10-21 19:08:53,863 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 96 transitions. Word has length 26 [2021-10-21 19:08:53,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:08:53,864 INFO L470 AbstractCegarLoop]: Abstraction has 88 states and 96 transitions. [2021-10-21 19:08:53,864 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 15 states have (on average 1.8) internal successors, (27), 14 states have internal predecessors, (27), 9 states have call successors, (11), 7 states have call predecessors, (11), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-10-21 19:08:53,864 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 96 transitions. [2021-10-21 19:08:53,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-21 19:08:53,865 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:08:53,866 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] [2021-10-21 19:08:53,882 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8d5dd3-0ee9-4384-bc39-c2885feb53c7/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-21 19:08:54,078 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8d5dd3-0ee9-4384-bc39-c2885feb53c7/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:08:54,079 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting f19Err1REQUIRES_VIOLATION === [f19_undoErr0REQUIRES_VIOLATION, f19_undoErr1REQUIRES_VIOLATION, f19_undoErr2ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr3ASSERT_VIOLATIONMEMORY_FREE (and 90 more)] === [2021-10-21 19:08:54,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:08:54,079 INFO L82 PathProgramCache]: Analyzing trace with hash 593669519, now seen corresponding path program 1 times [2021-10-21 19:08:54,079 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:08:54,080 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1039650239] [2021-10-21 19:08:54,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:08:54,080 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:08:54,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8d5dd3-0ee9-4384-bc39-c2885feb53c7/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:08:54,081 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8d5dd3-0ee9-4384-bc39-c2885feb53c7/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:08:54,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8d5dd3-0ee9-4384-bc39-c2885feb53c7/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-21 19:08:54,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:08:54,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-21 19:08:54,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:08:54,631 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 19:08:54,632 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:08:55,284 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 22 treesize of output 18 [2021-10-21 19:08:55,681 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 19:08:55,681 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:08:55,682 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1039650239] [2021-10-21 19:08:55,682 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1039650239] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:08:55,682 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:08:55,682 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 15 [2021-10-21 19:08:55,682 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088942359] [2021-10-21 19:08:55,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-10-21 19:08:55,683 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:08:55,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-21 19:08:55,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2021-10-21 19:08:55,684 INFO L87 Difference]: Start difference. First operand 88 states and 96 transitions. Second operand has 16 states, 13 states have (on average 2.076923076923077) internal successors, (27), 12 states have internal predecessors, (27), 9 states have call successors, (11), 7 states have call predecessors, (11), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-10-21 19:08:57,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:08:57,724 INFO L93 Difference]: Finished difference Result 124 states and 144 transitions. [2021-10-21 19:08:57,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-21 19:08:57,725 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 2.076923076923077) internal successors, (27), 12 states have internal predecessors, (27), 9 states have call successors, (11), 7 states have call predecessors, (11), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 26 [2021-10-21 19:08:57,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:08:57,726 INFO L225 Difference]: With dead ends: 124 [2021-10-21 19:08:57,726 INFO L226 Difference]: Without dead ends: 124 [2021-10-21 19:08:57,727 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1074.5ms TimeCoverageRelationStatistics Valid=98, Invalid=408, Unknown=0, NotChecked=0, Total=506 [2021-10-21 19:08:57,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2021-10-21 19:08:57,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 86. [2021-10-21 19:08:57,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 50 states have (on average 1.42) internal successors, (71), 66 states have internal predecessors, (71), 11 states have call successors, (11), 10 states have call predecessors, (11), 10 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2021-10-21 19:08:57,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 94 transitions. [2021-10-21 19:08:57,737 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 94 transitions. Word has length 26 [2021-10-21 19:08:57,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:08:57,737 INFO L470 AbstractCegarLoop]: Abstraction has 86 states and 94 transitions. [2021-10-21 19:08:57,737 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 13 states have (on average 2.076923076923077) internal successors, (27), 12 states have internal predecessors, (27), 9 states have call successors, (11), 7 states have call predecessors, (11), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-10-21 19:08:57,738 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 94 transitions. [2021-10-21 19:08:57,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-21 19:08:57,739 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:08:57,739 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:08:57,746 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8d5dd3-0ee9-4384-bc39-c2885feb53c7/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-10-21 19:08:57,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8d5dd3-0ee9-4384-bc39-c2885feb53c7/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:08:57,939 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting disconnect_19Err0REQUIRES_VIOLATION === [f19_undoErr0REQUIRES_VIOLATION, f19_undoErr1REQUIRES_VIOLATION, f19_undoErr2ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr3ASSERT_VIOLATIONMEMORY_FREE (and 90 more)] === [2021-10-21 19:08:57,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:08:57,940 INFO L82 PathProgramCache]: Analyzing trace with hash -1653980504, now seen corresponding path program 1 times [2021-10-21 19:08:57,940 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:08:57,940 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [120669210] [2021-10-21 19:08:57,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:08:57,940 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:08:57,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8d5dd3-0ee9-4384-bc39-c2885feb53c7/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:08:57,941 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8d5dd3-0ee9-4384-bc39-c2885feb53c7/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:08:57,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8d5dd3-0ee9-4384-bc39-c2885feb53c7/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-21 19:08:58,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:08:58,153 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-21 19:08:58,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:08:58,227 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 18 treesize of output 14 [2021-10-21 19:08:58,274 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2021-10-21 19:08:58,333 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 19:08:58,333 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:08:58,519 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 19:08:58,520 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:08:58,520 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [120669210] [2021-10-21 19:08:58,520 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [120669210] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:08:58,520 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:08:58,520 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-10-21 19:08:58,521 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065610513] [2021-10-21 19:08:58,521 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-21 19:08:58,521 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:08:58,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-21 19:08:58,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-21 19:08:58,522 INFO L87 Difference]: Start difference. First operand 86 states and 94 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-21 19:08:58,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:08:58,685 INFO L93 Difference]: Finished difference Result 91 states and 100 transitions. [2021-10-21 19:08:58,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-21 19:08:58,685 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 26 [2021-10-21 19:08:58,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:08:58,687 INFO L225 Difference]: With dead ends: 91 [2021-10-21 19:08:58,687 INFO L226 Difference]: Without dead ends: 91 [2021-10-21 19:08:58,687 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 119.2ms TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-10-21 19:08:58,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2021-10-21 19:08:58,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 90. [2021-10-21 19:08:58,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 54 states have (on average 1.3888888888888888) internal successors, (75), 69 states have internal predecessors, (75), 11 states have call successors, (11), 10 states have call predecessors, (11), 10 states have return successors, (12), 11 states have call predecessors, (12), 10 states have call successors, (12) [2021-10-21 19:08:58,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 98 transitions. [2021-10-21 19:08:58,695 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 98 transitions. Word has length 26 [2021-10-21 19:08:58,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:08:58,695 INFO L470 AbstractCegarLoop]: Abstraction has 90 states and 98 transitions. [2021-10-21 19:08:58,695 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-21 19:08:58,696 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 98 transitions. [2021-10-21 19:08:58,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-21 19:08:58,697 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:08:58,697 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:08:58,707 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8d5dd3-0ee9-4384-bc39-c2885feb53c7/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-21 19:08:58,903 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8d5dd3-0ee9-4384-bc39-c2885feb53c7/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:08:58,903 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting disconnect_19Err0REQUIRES_VIOLATION === [f19_undoErr0REQUIRES_VIOLATION, f19_undoErr1REQUIRES_VIOLATION, f19_undoErr2ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr3ASSERT_VIOLATIONMEMORY_FREE (and 90 more)] === [2021-10-21 19:08:58,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:08:58,904 INFO L82 PathProgramCache]: Analyzing trace with hash -146428695, now seen corresponding path program 1 times [2021-10-21 19:08:58,904 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:08:58,905 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1234834149] [2021-10-21 19:08:58,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:08:58,906 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:08:58,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8d5dd3-0ee9-4384-bc39-c2885feb53c7/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:08:58,907 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8d5dd3-0ee9-4384-bc39-c2885feb53c7/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:08:58,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8d5dd3-0ee9-4384-bc39-c2885feb53c7/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-21 19:08:59,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:08:59,171 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-21 19:08:59,172 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:08:59,305 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 19:08:59,306 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:08:59,576 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 19:08:59,576 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:08:59,576 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1234834149] [2021-10-21 19:08:59,576 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1234834149] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:08:59,576 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:08:59,577 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-10-21 19:08:59,577 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085650438] [2021-10-21 19:08:59,577 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-21 19:08:59,577 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:08:59,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-21 19:08:59,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-10-21 19:08:59,578 INFO L87 Difference]: Start difference. First operand 90 states and 98 transitions. Second operand has 10 states, 10 states have (on average 2.6) internal successors, (26), 8 states have internal predecessors, (26), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2021-10-21 19:08:59,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:08:59,699 INFO L93 Difference]: Finished difference Result 112 states and 120 transitions. [2021-10-21 19:08:59,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-21 19:08:59,699 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.6) internal successors, (26), 8 states have internal predecessors, (26), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) Word has length 26 [2021-10-21 19:08:59,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:08:59,701 INFO L225 Difference]: With dead ends: 112 [2021-10-21 19:08:59,701 INFO L226 Difference]: Without dead ends: 112 [2021-10-21 19:08:59,701 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 191.2ms TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-10-21 19:08:59,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2021-10-21 19:08:59,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 98. [2021-10-21 19:08:59,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 61 states have (on average 1.3934426229508197) internal successors, (85), 76 states have internal predecessors, (85), 11 states have call successors, (11), 10 states have call predecessors, (11), 11 states have return successors, (13), 12 states have call predecessors, (13), 10 states have call successors, (13) [2021-10-21 19:08:59,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 109 transitions. [2021-10-21 19:08:59,708 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 109 transitions. Word has length 26 [2021-10-21 19:08:59,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:08:59,708 INFO L470 AbstractCegarLoop]: Abstraction has 98 states and 109 transitions. [2021-10-21 19:08:59,708 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.6) internal successors, (26), 8 states have internal predecessors, (26), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2021-10-21 19:08:59,708 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 109 transitions. [2021-10-21 19:08:59,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-21 19:08:59,709 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:08:59,709 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:08:59,723 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8d5dd3-0ee9-4384-bc39-c2885feb53c7/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-21 19:08:59,922 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8d5dd3-0ee9-4384-bc39-c2885feb53c7/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:08:59,922 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [f19_undoErr0REQUIRES_VIOLATION, f19_undoErr1REQUIRES_VIOLATION, f19_undoErr2ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr3ASSERT_VIOLATIONMEMORY_FREE (and 90 more)] === [2021-10-21 19:08:59,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:08:59,922 INFO L82 PathProgramCache]: Analyzing trace with hash -243695008, now seen corresponding path program 1 times [2021-10-21 19:08:59,923 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:08:59,923 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [347282392] [2021-10-21 19:08:59,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:08:59,923 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:08:59,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8d5dd3-0ee9-4384-bc39-c2885feb53c7/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:08:59,924 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8d5dd3-0ee9-4384-bc39-c2885feb53c7/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:08:59,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8d5dd3-0ee9-4384-bc39-c2885feb53c7/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-21 19:09:00,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:09:00,158 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-21 19:09:00,160 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:09:00,194 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-10-21 19:09:00,194 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2021-10-21 19:09:04,709 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 19:09:04,709 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:09:17,536 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:09:17,537 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [347282392] [2021-10-21 19:09:17,537 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(= (store |v_old(#valid)_BEFORE_CALL_5| |v_entry_point_~#a19~0.base_18| (_ bv0 1)) v_prenex_3)=(= (select (store |v_old(#valid)_BEFORE_CALL_5| |v_entry_point_~#a19~0.base_18| (_ bv0 1)) v_antiDerIndex_entry0_1) (select v_prenex_3 v_antiDerIndex_entry0_1))} [2021-10-21 19:09:17,537 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2022916890] [2021-10-21 19:09:17,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:09:17,538 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-21 19:09:17,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8d5dd3-0ee9-4384-bc39-c2885feb53c7/bin/uautomizer-j4sWxH34Be/cvc4 [2021-10-21 19:09:17,539 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8d5dd3-0ee9-4384-bc39-c2885feb53c7/bin/uautomizer-j4sWxH34Be/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-21 19:09:17,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8d5dd3-0ee9-4384-bc39-c2885feb53c7/bin/uautomizer-j4sWxH34Be/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2021-10-21 19:09:17,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:09:17,941 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-21 19:09:17,943 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:09:17,979 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-10-21 19:09:17,979 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 27 [2021-10-21 19:09:22,438 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 19:09:22,438 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:09:35,215 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(= (store |v_old(#valid)_BEFORE_CALL_10| |v_entry_point_~#a19~0.base_18| (_ bv0 1)) v_prenex_5)=(= (select (store |v_old(#valid)_BEFORE_CALL_10| |v_entry_point_~#a19~0.base_18| (_ bv0 1)) v_antiDerIndex_entry0_2) (select v_prenex_5 v_antiDerIndex_entry0_2))} [2021-10-21 19:09:35,216 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1288287242] [2021-10-21 19:09:35,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:09:35,216 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:09:35,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8d5dd3-0ee9-4384-bc39-c2885feb53c7/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:09:35,224 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8d5dd3-0ee9-4384-bc39-c2885feb53c7/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:09:35,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8d5dd3-0ee9-4384-bc39-c2885feb53c7/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-10-21 19:09:35,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:09:35,537 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-21 19:09:35,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:09:37,732 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 19:09:37,732 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:09:48,489 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(= (store |v_old(#valid)_BEFORE_CALL_15| |v_entry_point_~#a19~0.base_18| (_ bv0 1)) v_prenex_9)=(= (select v_prenex_9 v_antiDerIndex_entry0_3) (select (store |v_old(#valid)_BEFORE_CALL_15| |v_entry_point_~#a19~0.base_18| (_ bv0 1)) v_antiDerIndex_entry0_3))} [2021-10-21 19:09:48,489 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:09:48,489 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-10-21 19:09:48,489 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-10-21 19:09:48,489 INFO L626 BasicCegarLoop]: Counterexample might be feasible [2021-10-21 19:09:48,496 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-10-21 19:09:48,498 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location f19_undoErr0REQUIRES_VIOLATION [2021-10-21 19:09:48,498 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location f19_undoErr1REQUIRES_VIOLATION [2021-10-21 19:09:48,499 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location f19_undoErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:09:48,499 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location f19_undoErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:09:48,499 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location f19_undoErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:09:48,499 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location f19Err0REQUIRES_VIOLATION [2021-10-21 19:09:48,499 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location f19Err1REQUIRES_VIOLATION [2021-10-21 19:09:48,500 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location f19Err2REQUIRES_VIOLATION [2021-10-21 19:09:48,500 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location f19Err3REQUIRES_VIOLATION [2021-10-21 19:09:48,501 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION [2021-10-21 19:09:48,501 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION [2021-10-21 19:09:48,501 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION [2021-10-21 19:09:48,505 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION [2021-10-21 19:09:48,505 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location disconnect_19Err0REQUIRES_VIOLATION [2021-10-21 19:09:48,505 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location disconnect_19Err1REQUIRES_VIOLATION [2021-10-21 19:09:48,505 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location disconnect_19Err2ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:09:48,506 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location disconnect_19Err3ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:09:48,506 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location disconnect_19Err4ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:09:48,506 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION [2021-10-21 19:09:48,506 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION [2021-10-21 19:09:48,506 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION [2021-10-21 19:09:48,506 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION [2021-10-21 19:09:48,507 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION [2021-10-21 19:09:48,507 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION [2021-10-21 19:09:48,508 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION [2021-10-21 19:09:48,508 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION [2021-10-21 19:09:48,508 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION [2021-10-21 19:09:48,508 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION [2021-10-21 19:09:48,508 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION [2021-10-21 19:09:48,508 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION [2021-10-21 19:09:48,509 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION [2021-10-21 19:09:48,509 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION [2021-10-21 19:09:48,510 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION [2021-10-21 19:09:48,510 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION [2021-10-21 19:09:48,510 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION [2021-10-21 19:09:48,511 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION [2021-10-21 19:09:48,511 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe_unsafe_19Err0REQUIRES_VIOLATION [2021-10-21 19:09:48,511 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe_unsafe_19Err1REQUIRES_VIOLATION [2021-10-21 19:09:48,511 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe_unsafe_19Err2REQUIRES_VIOLATION [2021-10-21 19:09:48,511 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe_unsafe_19Err3REQUIRES_VIOLATION [2021-10-21 19:09:48,511 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe_unsafe_19Err4REQUIRES_VIOLATION [2021-10-21 19:09:48,512 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe_unsafe_19Err5REQUIRES_VIOLATION [2021-10-21 19:09:48,512 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe_unsafe_19Err6ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:09:48,512 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe_unsafe_19Err7ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:09:48,512 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe_unsafe_19Err8ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:09:48,512 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION [2021-10-21 19:09:48,513 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION [2021-10-21 19:09:48,513 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION [2021-10-21 19:09:48,513 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION [2021-10-21 19:09:48,513 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION [2021-10-21 19:09:48,513 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION [2021-10-21 19:09:48,513 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION [2021-10-21 19:09:48,514 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION [2021-10-21 19:09:48,514 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION [2021-10-21 19:09:48,514 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION [2021-10-21 19:09:48,514 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION [2021-10-21 19:09:48,514 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION [2021-10-21 19:09:48,514 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION [2021-10-21 19:09:48,515 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION [2021-10-21 19:09:48,515 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION [2021-10-21 19:09:48,515 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION [2021-10-21 19:09:48,515 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION [2021-10-21 19:09:48,515 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION [2021-10-21 19:09:48,516 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION [2021-10-21 19:09:48,516 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION [2021-10-21 19:09:48,516 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:09:48,516 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:09:48,516 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:09:48,517 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:09:48,517 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:09:48,517 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:09:48,517 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION [2021-10-21 19:09:48,517 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION [2021-10-21 19:09:48,517 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION [2021-10-21 19:09:48,518 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION [2021-10-21 19:09:48,518 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION [2021-10-21 19:09:48,518 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION [2021-10-21 19:09:48,518 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION [2021-10-21 19:09:48,518 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION [2021-10-21 19:09:48,519 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:09:48,519 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:09:48,519 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:09:48,519 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:09:48,519 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:09:48,519 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:09:48,520 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION [2021-10-21 19:09:48,520 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION [2021-10-21 19:09:48,520 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION [2021-10-21 19:09:48,520 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION [2021-10-21 19:09:48,520 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION [2021-10-21 19:09:48,521 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION [2021-10-21 19:09:48,521 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION [2021-10-21 19:09:48,521 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION [2021-10-21 19:09:48,560 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8d5dd3-0ee9-4384-bc39-c2885feb53c7/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-10-21 19:09:48,761 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8d5dd3-0ee9-4384-bc39-c2885feb53c7/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-21 19:09:48,950 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8d5dd3-0ee9-4384-bc39-c2885feb53c7/bin/uautomizer-j4sWxH34Be/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2021-10-21 19:09:49,147 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8d5dd3-0ee9-4384-bc39-c2885feb53c7/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8d5dd3-0ee9-4384-bc39-c2885feb53c7/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8d5dd3-0ee9-4384-bc39-c2885feb53c7/bin/uautomizer-j4sWxH34Be/cvc4 --incremental --print-success --lang smt [2021-10-21 19:09:49,154 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-21 19:09:49,156 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-10-21 19:09:49,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 07:09:49 BoogieIcfgContainer [2021-10-21 19:09:49,163 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-21 19:09:49,163 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:09:49,163 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:09:49,164 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:09:49,164 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:02:33" (3/4) ... [2021-10-21 19:09:49,167 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-21 19:09:49,167 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:09:49,168 INFO L168 Benchmark]: Toolchain (without parser) took 438495.60 ms. Allocated memory was 75.5 MB in the beginning and 119.5 MB in the end (delta: 44.0 MB). Free memory was 55.1 MB in the beginning and 66.7 MB in the end (delta: -11.7 MB). Peak memory consumption was 32.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:09:49,169 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 75.5 MB. Free memory is still 56.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:09:49,169 INFO L168 Benchmark]: CACSL2BoogieTranslator took 668.85 ms. Allocated memory is still 75.5 MB. Free memory was 54.8 MB in the beginning and 39.4 MB in the end (delta: 15.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-21 19:09:49,169 INFO L168 Benchmark]: Boogie Preprocessor took 107.99 ms. Allocated memory is still 75.5 MB. Free memory was 39.4 MB in the beginning and 34.6 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:09:49,170 INFO L168 Benchmark]: RCFGBuilder took 1664.94 ms. Allocated memory was 75.5 MB in the beginning and 94.4 MB in the end (delta: 18.9 MB). Free memory was 34.6 MB in the beginning and 50.6 MB in the end (delta: -16.0 MB). Peak memory consumption was 11.8 MB. Max. memory is 16.1 GB. [2021-10-21 19:09:49,170 INFO L168 Benchmark]: TraceAbstraction took 436044.64 ms. Allocated memory was 94.4 MB in the beginning and 119.5 MB in the end (delta: 25.2 MB). Free memory was 50.1 MB in the beginning and 66.7 MB in the end (delta: -16.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:09:49,171 INFO L168 Benchmark]: Witness Printer took 4.07 ms. Allocated memory is still 119.5 MB. Free memory is still 66.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:09:49,172 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 75.5 MB. Free memory is still 56.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 668.85 ms. Allocated memory is still 75.5 MB. Free memory was 54.8 MB in the beginning and 39.4 MB in the end (delta: 15.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 107.99 ms. Allocated memory is still 75.5 MB. Free memory was 39.4 MB in the beginning and 34.6 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1664.94 ms. Allocated memory was 75.5 MB in the beginning and 94.4 MB in the end (delta: 18.9 MB). Free memory was 34.6 MB in the beginning and 50.6 MB in the end (delta: -16.0 MB). Peak memory consumption was 11.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 436044.64 ms. Allocated memory was 94.4 MB in the beginning and 119.5 MB in the end (delta: 25.2 MB). Free memory was 50.1 MB in the beginning and 66.7 MB in the end (delta: -16.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Witness Printer took 4.07 ms. Allocated memory is still 119.5 MB. Free memory is still 66.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 803]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: unable to decide satisfiability of path constraint, overapproximation of memtrack at line 803. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L804] CALL entry_point() [L797] struct A19 a19; [L798] CALL, EXPR probe_unsafe_19(&a19) [L774] int ret = - -3; [L775] CALL, EXPR ldv_malloc(sizeof(int)) [L526] COND FALSE !(__VERIFIER_nondet_int()) [L529] return 0; [L775] RET, EXPR ldv_malloc(sizeof(int)) [L775] a->q = (int *)ldv_malloc(sizeof(int)) [L776] EXPR a->q [L776] COND TRUE !a->q [L790] return ret; [L798] RET, EXPR probe_unsafe_19(&a19) [L798] int ret = probe_unsafe_19(&a19); [L799] COND FALSE !(ret==0) [L804] RET entry_point() - UnprovableResult [Line: 768]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 768]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 768]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 768]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 768]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 762]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 762]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 763]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 763]: 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: 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: 793]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 793]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 793]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 793]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 793]: Unable to prove that free always succeeds Unable to prove that free 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: 775]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 775]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 776]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 776]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 788]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 788]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 788]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 788]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 788]: Unable to prove that free always succeeds Unable to prove that free 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. - StatisticsResult: Ultimate Automizer benchmark data CFG has 52 procedures, 401 locations, 94 error locations. Started 1 CEGAR loops. OverallTime: 435974.0ms, OverallIterations: 8, TraceHistogramMax: 2, EmptinessCheckTime: 20.2ms, AutomataDifference: 357158.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 13.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 662 SDtfs, 1151 SDslu, 2694 SDs, 0 SdLazy, 2237 SolverSat, 379 SolverUnsat, 151 SolverUnknown, 0 SolverNotchecked, 304315.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 366 GetRequests, 237 SyntacticMatches, 10 SemanticMatches, 119 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 307 ImplicationChecksByTransitivity, 66661.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=161occurred in iteration=0, InterpolantAutomatonStates: 92, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 95.8ms AutomataMinimizationTime, 7 MinimizatonAttempts, 321 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 85.3ms SsaConstructionTime, 258.1ms SatisfiabilityAnalysisTime, 26349.5ms InterpolantComputationTime, 160 NumberOfCodeBlocks, 160 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 306 ConstructedInterpolants, 37 QuantifiedInterpolants, 2090 SizeOfPredicates, 37 NumberOfNonLiveVariables, 832 ConjunctsInSsa, 79 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 24/24 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 19:09:49,249 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8d5dd3-0ee9-4384-bc39-c2885feb53c7/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...