./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test4-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d7e314-d46f-4234-b7ad-f2932f41e8d2/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d7e314-d46f-4234-b7ad-f2932f41e8d2/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_a3d7e314-d46f-4234-b7ad-f2932f41e8d2/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d7e314-d46f-4234-b7ad-f2932f41e8d2/bin/uautomizer-j4sWxH34Be/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test4-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d7e314-d46f-4234-b7ad-f2932f41e8d2/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_a3d7e314-d46f-4234-b7ad-f2932f41e8d2/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 9bd23263f414c48e50ed8daa5b2985179bde28a9902b6873b1962b90b4067acc ................................................................................................................................... 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_a3d7e314-d46f-4234-b7ad-f2932f41e8d2/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d7e314-d46f-4234-b7ad-f2932f41e8d2/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_a3d7e314-d46f-4234-b7ad-f2932f41e8d2/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d7e314-d46f-4234-b7ad-f2932f41e8d2/bin/uautomizer-j4sWxH34Be/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test4-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d7e314-d46f-4234-b7ad-f2932f41e8d2/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_a3d7e314-d46f-4234-b7ad-f2932f41e8d2/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 9bd23263f414c48e50ed8daa5b2985179bde28a9902b6873b1962b90b4067acc ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 19:30:10,744 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:30:10,748 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:30:10,801 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:30:10,802 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:30:10,806 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:30:10,808 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:30:10,812 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:30:10,814 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:30:10,820 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:30:10,821 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:30:10,823 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:30:10,824 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:30:10,826 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:30:10,828 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:30:10,832 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:30:10,834 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:30:10,835 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:30:10,841 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:30:10,848 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:30:10,850 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:30:10,852 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:30:10,855 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:30:10,856 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:30:10,865 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:30:10,865 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:30:10,866 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:30:10,868 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:30:10,869 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:30:10,870 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:30:10,871 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:30:10,872 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:30:10,874 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:30:10,875 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:30:10,876 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:30:10,877 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:30:10,878 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:30:10,878 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:30:10,878 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:30:10,879 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:30:10,880 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:30:10,881 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d7e314-d46f-4234-b7ad-f2932f41e8d2/bin/uautomizer-j4sWxH34Be/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-10-21 19:30:10,921 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:30:10,921 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:30:10,922 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:30:10,922 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:30:10,930 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:30:10,931 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:30:10,931 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:30:10,931 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:30:10,932 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:30:10,932 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 19:30:10,933 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:30:10,933 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:30:10,934 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:30:10,934 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-21 19:30:10,934 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-21 19:30:10,935 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-21 19:30:10,935 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 19:30:10,935 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-21 19:30:10,935 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:30:10,936 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:30:10,936 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:30:10,936 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:30:10,937 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 19:30:10,937 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:30:10,937 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:30:10,938 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 19:30:10,938 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:30:10,938 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-21 19:30:10,938 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:30:10,940 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_a3d7e314-d46f-4234-b7ad-f2932f41e8d2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d7e314-d46f-4234-b7ad-f2932f41e8d2/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9bd23263f414c48e50ed8daa5b2985179bde28a9902b6873b1962b90b4067acc [2021-10-21 19:30:11,212 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:30:11,243 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:30:11,246 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:30:11,247 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:30:11,248 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:30:11,249 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d7e314-d46f-4234-b7ad-f2932f41e8d2/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/ldv-memsafety/memleaks_test4-1.i [2021-10-21 19:30:11,324 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d7e314-d46f-4234-b7ad-f2932f41e8d2/bin/uautomizer-j4sWxH34Be/data/e9757b9e1/0391c90d18944db08dec36cd9a813cd6/FLAG7f43344dd [2021-10-21 19:30:11,836 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:30:11,836 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d7e314-d46f-4234-b7ad-f2932f41e8d2/sv-benchmarks/c/ldv-memsafety/memleaks_test4-1.i [2021-10-21 19:30:11,864 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d7e314-d46f-4234-b7ad-f2932f41e8d2/bin/uautomizer-j4sWxH34Be/data/e9757b9e1/0391c90d18944db08dec36cd9a813cd6/FLAG7f43344dd [2021-10-21 19:30:12,169 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d7e314-d46f-4234-b7ad-f2932f41e8d2/bin/uautomizer-j4sWxH34Be/data/e9757b9e1/0391c90d18944db08dec36cd9a813cd6 [2021-10-21 19:30:12,172 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:30:12,173 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-21 19:30:12,175 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:30:12,175 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:30:12,192 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:30:12,193 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:30:12" (1/1) ... [2021-10-21 19:30:12,194 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f8c8f56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:30:12, skipping insertion in model container [2021-10-21 19:30:12,194 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:30:12" (1/1) ... [2021-10-21 19:30:12,201 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:30:12,271 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:30:12,782 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:30:12,805 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 19:30:12,805 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3b881e95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:30:12, skipping insertion in model container [2021-10-21 19:30:12,806 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:30:12,807 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-10-21 19:30:12,811 INFO L168 Benchmark]: Toolchain (without parser) took 634.90 ms. Allocated memory was 81.8 MB in the beginning and 113.2 MB in the end (delta: 31.5 MB). Free memory was 45.4 MB in the beginning and 85.5 MB in the end (delta: -40.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:30:12,812 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 81.8 MB. Free memory was 54.8 MB in the beginning and 54.8 MB in the end (delta: 25.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:30:12,814 INFO L168 Benchmark]: CACSL2BoogieTranslator took 631.83 ms. Allocated memory was 81.8 MB in the beginning and 113.2 MB in the end (delta: 31.5 MB). Free memory was 45.2 MB in the beginning and 85.5 MB in the end (delta: -40.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-21 19:30:12,817 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 81.8 MB. Free memory was 54.8 MB in the beginning and 54.8 MB in the end (delta: 25.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 631.83 ms. Allocated memory was 81.8 MB in the beginning and 113.2 MB in the end (delta: 31.5 MB). Free memory was 45.2 MB in the beginning and 85.5 MB in the end (delta: -40.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 19:30:15,513 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:30:15,517 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:30:15,567 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:30:15,568 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:30:15,574 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:30:15,577 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:30:15,589 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:30:15,594 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:30:15,598 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:30:15,599 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:30:15,603 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:30:15,603 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:30:15,612 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:30:15,614 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:30:15,616 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:30:15,623 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:30:15,624 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:30:15,627 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:30:15,633 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:30:15,638 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:30:15,640 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:30:15,644 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:30:15,647 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:30:15,655 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:30:15,656 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:30:15,656 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:30:15,659 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:30:15,660 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:30:15,661 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:30:15,662 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:30:15,663 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:30:15,666 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:30:15,667 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:30:15,669 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:30:15,669 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:30:15,671 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:30:15,678 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:30:15,680 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:30:15,683 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:30:15,684 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:30:15,691 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d7e314-d46f-4234-b7ad-f2932f41e8d2/bin/uautomizer-j4sWxH34Be/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-21 19:30:15,729 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:30:15,729 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:30:15,730 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:30:15,730 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:30:15,731 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:30:15,732 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:30:15,732 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:30:15,732 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:30:15,733 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:30:15,733 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 19:30:15,733 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:30:15,734 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:30:15,734 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:30:15,734 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-21 19:30:15,734 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-21 19:30:15,735 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-21 19:30:15,735 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 19:30:15,735 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-21 19:30:15,736 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-21 19:30:15,736 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-21 19:30:15,736 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:30:15,736 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:30:15,737 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:30:15,737 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:30:15,737 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 19:30:15,738 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:30:15,740 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:30:15,740 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 19:30:15,741 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-21 19:30:15,742 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-21 19:30:15,742 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:30:15,742 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-21 19:30:15,742 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_a3d7e314-d46f-4234-b7ad-f2932f41e8d2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d7e314-d46f-4234-b7ad-f2932f41e8d2/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9bd23263f414c48e50ed8daa5b2985179bde28a9902b6873b1962b90b4067acc [2021-10-21 19:30:16,230 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:30:16,265 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:30:16,267 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:30:16,270 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:30:16,271 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:30:16,272 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d7e314-d46f-4234-b7ad-f2932f41e8d2/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/ldv-memsafety/memleaks_test4-1.i [2021-10-21 19:30:16,347 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d7e314-d46f-4234-b7ad-f2932f41e8d2/bin/uautomizer-j4sWxH34Be/data/18f2441b6/189fa9ca3c874ae6b9c17825bde19dd3/FLAGf1fef6f67 [2021-10-21 19:30:16,929 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:30:16,929 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d7e314-d46f-4234-b7ad-f2932f41e8d2/sv-benchmarks/c/ldv-memsafety/memleaks_test4-1.i [2021-10-21 19:30:16,944 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d7e314-d46f-4234-b7ad-f2932f41e8d2/bin/uautomizer-j4sWxH34Be/data/18f2441b6/189fa9ca3c874ae6b9c17825bde19dd3/FLAGf1fef6f67 [2021-10-21 19:30:17,224 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d7e314-d46f-4234-b7ad-f2932f41e8d2/bin/uautomizer-j4sWxH34Be/data/18f2441b6/189fa9ca3c874ae6b9c17825bde19dd3 [2021-10-21 19:30:17,227 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:30:17,228 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-21 19:30:17,229 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:30:17,229 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:30:17,233 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:30:17,233 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:30:17" (1/1) ... [2021-10-21 19:30:17,234 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5980a1dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:30:17, skipping insertion in model container [2021-10-21 19:30:17,235 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:30:17" (1/1) ... [2021-10-21 19:30:17,251 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:30:17,298 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:30:17,734 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:30:17,758 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-21 19:30:17,777 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:30:17,853 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:30:17,875 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:30:17,962 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:30:18,022 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:30:18,022 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:30:18 WrapperNode [2021-10-21 19:30:18,023 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:30:18,024 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:30:18,024 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:30:18,024 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:30:18,036 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:30:18" (1/1) ... [2021-10-21 19:30:18,036 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:30:18" (1/1) ... [2021-10-21 19:30:18,066 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:30:18" (1/1) ... [2021-10-21 19:30:18,067 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:30:18" (1/1) ... [2021-10-21 19:30:18,098 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:30:18" (1/1) ... [2021-10-21 19:30:18,104 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:30:18" (1/1) ... [2021-10-21 19:30:18,111 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:30:18" (1/1) ... [2021-10-21 19:30:18,122 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:30:18,123 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:30:18,124 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:30:18,124 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:30:18,125 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:30:18" (1/1) ... [2021-10-21 19:30:18,133 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:30:18,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d7e314-d46f-4234-b7ad-f2932f41e8d2/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:30:18,162 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d7e314-d46f-4234-b7ad-f2932f41e8d2/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-21 19:30:18,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d7e314-d46f-4234-b7ad-f2932f41e8d2/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-21 19:30:18,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-21 19:30:18,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:30:18,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-10-21 19:30:18,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-10-21 19:30:18,204 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-10-21 19:30:18,205 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-10-21 19:30:18,205 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-10-21 19:30:18,205 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-10-21 19:30:18,205 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-10-21 19:30:18,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-10-21 19:30:18,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-10-21 19:30:18,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-10-21 19:30:18,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-10-21 19:30:18,206 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-10-21 19:30:18,206 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-10-21 19:30:18,206 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-10-21 19:30:18,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-10-21 19:30:18,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-10-21 19:30:18,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-10-21 19:30:18,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-10-21 19:30:18,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-10-21 19:30:18,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-10-21 19:30:18,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-10-21 19:30:18,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-10-21 19:30:18,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-10-21 19:30:18,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-10-21 19:30:18,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-10-21 19:30:18,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-10-21 19:30:18,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-10-21 19:30:18,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-10-21 19:30:18,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-10-21 19:30:18,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-10-21 19:30:18,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-10-21 19:30:18,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-10-21 19:30:18,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-10-21 19:30:18,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-10-21 19:30:18,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-10-21 19:30:18,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-10-21 19:30:18,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-10-21 19:30:18,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-10-21 19:30:18,211 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-10-21 19:30:18,211 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-10-21 19:30:18,211 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-10-21 19:30:18,211 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-21 19:30:18,211 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-10-21 19:30:18,212 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-10-21 19:30:18,212 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-10-21 19:30:18,212 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-10-21 19:30:18,212 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-10-21 19:30:18,212 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-10-21 19:30:18,213 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-10-21 19:30:18,213 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-10-21 19:30:18,213 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-10-21 19:30:18,213 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-10-21 19:30:18,213 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-10-21 19:30:18,213 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-10-21 19:30:18,214 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-10-21 19:30:18,214 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-10-21 19:30:18,214 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-10-21 19:30:18,214 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-10-21 19:30:18,214 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-10-21 19:30:18,215 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-10-21 19:30:18,215 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-10-21 19:30:18,215 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-10-21 19:30:18,215 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-10-21 19:30:18,215 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-10-21 19:30:18,215 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-10-21 19:30:18,216 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-10-21 19:30:18,216 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-10-21 19:30:18,216 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-10-21 19:30:18,216 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-10-21 19:30:18,216 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-10-21 19:30:18,216 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-10-21 19:30:18,217 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-10-21 19:30:18,217 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-10-21 19:30:18,217 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-10-21 19:30:18,217 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-10-21 19:30:18,217 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-10-21 19:30:18,217 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-10-21 19:30:18,218 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-10-21 19:30:18,218 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-10-21 19:30:18,218 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-10-21 19:30:18,218 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-10-21 19:30:18,218 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-10-21 19:30:18,218 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-10-21 19:30:18,219 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-10-21 19:30:18,219 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-10-21 19:30:18,219 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-10-21 19:30:18,219 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-10-21 19:30:18,219 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-10-21 19:30:18,219 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-10-21 19:30:18,220 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-10-21 19:30:18,220 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-10-21 19:30:18,220 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-10-21 19:30:18,220 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-10-21 19:30:18,220 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-10-21 19:30:18,220 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-10-21 19:30:18,221 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-10-21 19:30:18,221 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-10-21 19:30:18,221 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-10-21 19:30:18,221 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-10-21 19:30:18,221 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-10-21 19:30:18,221 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-10-21 19:30:18,222 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-10-21 19:30:18,222 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-10-21 19:30:18,222 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-10-21 19:30:18,222 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-10-21 19:30:18,223 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-10-21 19:30:18,223 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-10-21 19:30:18,223 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-10-21 19:30:18,223 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-21 19:30:18,223 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-10-21 19:30:18,223 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-10-21 19:30:18,224 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-10-21 19:30:18,224 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-10-21 19:30:18,224 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-10-21 19:30:18,224 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-10-21 19:30:18,224 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-10-21 19:30:18,224 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-10-21 19:30:18,225 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-10-21 19:30:18,225 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-10-21 19:30:18,225 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-10-21 19:30:18,225 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-10-21 19:30:18,225 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-10-21 19:30:18,226 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-10-21 19:30:18,226 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-10-21 19:30:18,226 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-10-21 19:30:18,226 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-10-21 19:30:18,226 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-10-21 19:30:18,226 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-10-21 19:30:18,227 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-10-21 19:30:18,227 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-10-21 19:30:18,227 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-10-21 19:30:18,227 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-10-21 19:30:18,227 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-10-21 19:30:18,227 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-10-21 19:30:18,228 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-10-21 19:30:18,228 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-10-21 19:30:18,228 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-10-21 19:30:18,228 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-10-21 19:30:18,228 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-10-21 19:30:18,228 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-10-21 19:30:18,229 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-10-21 19:30:18,229 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-10-21 19:30:18,229 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-10-21 19:30:18,229 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-10-21 19:30:18,229 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-10-21 19:30:18,229 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-10-21 19:30:18,230 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-10-21 19:30:18,230 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-10-21 19:30:18,230 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-10-21 19:30:18,230 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-10-21 19:30:18,230 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-10-21 19:30:18,230 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-10-21 19:30:18,230 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-10-21 19:30:18,231 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-21 19:30:18,231 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-10-21 19:30:18,231 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-10-21 19:30:18,231 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-10-21 19:30:18,231 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-10-21 19:30:18,231 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-10-21 19:30:18,232 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-21 19:30:18,232 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-10-21 19:30:18,232 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-10-21 19:30:18,232 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-10-21 19:30:18,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-21 19:30:18,232 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-10-21 19:30:18,232 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-10-21 19:30:18,233 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-10-21 19:30:18,233 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-21 19:30:18,233 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-10-21 19:30:18,233 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-10-21 19:30:18,233 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-10-21 19:30:18,233 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-10-21 19:30:18,234 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-10-21 19:30:18,234 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-10-21 19:30:18,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-21 19:30:18,234 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-10-21 19:30:18,234 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-10-21 19:30:18,234 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-10-21 19:30:18,235 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-10-21 19:30:18,235 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-10-21 19:30:18,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-21 19:30:18,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-21 19:30:18,235 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-10-21 19:30:18,235 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-10-21 19:30:18,235 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-10-21 19:30:18,236 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-10-21 19:30:18,236 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-10-21 19:30:18,236 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-10-21 19:30:18,236 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-10-21 19:30:18,236 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-10-21 19:30:18,236 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-10-21 19:30:18,237 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-10-21 19:30:18,237 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-10-21 19:30:18,237 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-10-21 19:30:18,237 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-10-21 19:30:18,237 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-10-21 19:30:18,237 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-10-21 19:30:18,238 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-10-21 19:30:18,238 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-10-21 19:30:18,238 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-10-21 19:30:18,238 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-21 19:30:18,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-21 19:30:18,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:30:18,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-21 19:30:18,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:30:18,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-10-21 19:30:18,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-10-21 19:30:18,239 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-10-21 19:30:18,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-10-21 19:30:18,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-10-21 19:30:18,848 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-21 19:30:19,204 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-21 19:30:19,509 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:30:19,509 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-10-21 19:30:19,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:30:19 BoogieIcfgContainer [2021-10-21 19:30:19,515 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:30:19,518 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-21 19:30:19,518 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-21 19:30:19,521 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-21 19:30:19,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 07:30:17" (1/3) ... [2021-10-21 19:30:19,522 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4508f5ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:30:19, skipping insertion in model container [2021-10-21 19:30:19,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:30:18" (2/3) ... [2021-10-21 19:30:19,524 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4508f5ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:30:19, skipping insertion in model container [2021-10-21 19:30:19,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:30:19" (3/3) ... [2021-10-21 19:30:19,526 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test4-1.i [2021-10-21 19:30:19,530 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-21 19:30:19,530 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 74 error locations. [2021-10-21 19:30:19,574 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-21 19:30:19,583 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 19:30:19,584 INFO L340 AbstractCegarLoop]: Starting to check reachability of 74 error locations. [2021-10-21 19:30:19,599 INFO L276 IsEmpty]: Start isEmpty. Operand has 98 states, 54 states have (on average 1.5185185185185186) internal successors, (82), 75 states have internal predecessors, (82), 12 states have call successors, (12), 10 states have call predecessors, (12), 10 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2021-10-21 19:30:19,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-21 19:30:19,607 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:30:19,607 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:30:19,608 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-21 19:30:19,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:30:19,613 INFO L82 PathProgramCache]: Analyzing trace with hash 927863930, now seen corresponding path program 1 times [2021-10-21 19:30:19,625 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:30:19,626 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2084548433] [2021-10-21 19:30:19,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:30:19,627 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:30:19,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d7e314-d46f-4234-b7ad-f2932f41e8d2/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:30:19,630 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d7e314-d46f-4234-b7ad-f2932f41e8d2/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:30:19,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d7e314-d46f-4234-b7ad-f2932f41e8d2/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-21 19:30:19,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:30:19,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 19:30:19,816 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:30:19,974 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 19:30:19,975 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:30:20,123 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 19:30:20,124 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:30:20,124 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2084548433] [2021-10-21 19:30:20,125 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2084548433] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:30:20,125 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:30:20,125 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-21 19:30:20,130 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128243887] [2021-10-21 19:30:20,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-21 19:30:20,136 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:30:20,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 19:30:20,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:30:20,153 INFO L87 Difference]: Start difference. First operand has 98 states, 54 states have (on average 1.5185185185185186) internal successors, (82), 75 states have internal predecessors, (82), 12 states have call successors, (12), 10 states have call predecessors, (12), 10 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-21 19:30:20,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:30:20,189 INFO L93 Difference]: Finished difference Result 42 states and 47 transitions. [2021-10-21 19:30:20,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 19:30:20,190 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 16 [2021-10-21 19:30:20,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:30:20,199 INFO L225 Difference]: With dead ends: 42 [2021-10-21 19:30:20,200 INFO L226 Difference]: Without dead ends: 39 [2021-10-21 19:30:20,201 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.5ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:30:20,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-10-21 19:30:20,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 29. [2021-10-21 19:30:20,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 16 states have (on average 1.3125) internal successors, (21), 19 states have internal predecessors, (21), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2021-10-21 19:30:20,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2021-10-21 19:30:20,240 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 16 [2021-10-21 19:30:20,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:30:20,241 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2021-10-21 19:30:20,241 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-21 19:30:20,241 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2021-10-21 19:30:20,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-21 19:30:20,243 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:30:20,243 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:30:20,255 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d7e314-d46f-4234-b7ad-f2932f41e8d2/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-21 19:30:20,458 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d7e314-d46f-4234-b7ad-f2932f41e8d2/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:30:20,458 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-21 19:30:20,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:30:20,459 INFO L82 PathProgramCache]: Analyzing trace with hash -1624293031, now seen corresponding path program 1 times [2021-10-21 19:30:20,460 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:30:20,460 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1667906179] [2021-10-21 19:30:20,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:30:20,460 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:30:20,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d7e314-d46f-4234-b7ad-f2932f41e8d2/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:30:20,462 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d7e314-d46f-4234-b7ad-f2932f41e8d2/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:30:20,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d7e314-d46f-4234-b7ad-f2932f41e8d2/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-21 19:30:20,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:30:20,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-21 19:30:20,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:30:20,715 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 19:30:20,716 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:30:20,846 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 19:30:20,847 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:30:20,847 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1667906179] [2021-10-21 19:30:20,848 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1667906179] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:30:20,848 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:30:20,848 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-21 19:30:20,848 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224959239] [2021-10-21 19:30:20,855 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:30:20,855 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:30:20,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:30:20,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:30:20,861 INFO L87 Difference]: Start difference. First operand 29 states and 32 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-21 19:30:20,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:30:20,907 INFO L93 Difference]: Finished difference Result 40 states and 44 transitions. [2021-10-21 19:30:20,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:30:20,908 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 16 [2021-10-21 19:30:20,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:30:20,910 INFO L225 Difference]: With dead ends: 40 [2021-10-21 19:30:20,910 INFO L226 Difference]: Without dead ends: 37 [2021-10-21 19:30:20,915 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:30:20,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-10-21 19:30:20,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 25. [2021-10-21 19:30:20,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 16 states have internal predecessors, (17), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-10-21 19:30:20,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2021-10-21 19:30:20,929 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 16 [2021-10-21 19:30:20,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:30:20,929 INFO L470 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2021-10-21 19:30:20,929 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-21 19:30:20,929 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2021-10-21 19:30:20,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-21 19:30:20,931 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:30:20,931 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:30:20,944 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d7e314-d46f-4234-b7ad-f2932f41e8d2/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-21 19:30:21,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d7e314-d46f-4234-b7ad-f2932f41e8d2/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:30:21,143 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-21 19:30:21,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:30:21,143 INFO L82 PathProgramCache]: Analyzing trace with hash -1911181477, now seen corresponding path program 1 times [2021-10-21 19:30:21,144 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:30:21,144 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [621649599] [2021-10-21 19:30:21,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:30:21,145 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:30:21,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d7e314-d46f-4234-b7ad-f2932f41e8d2/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:30:21,146 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d7e314-d46f-4234-b7ad-f2932f41e8d2/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:30:21,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d7e314-d46f-4234-b7ad-f2932f41e8d2/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-21 19:30:21,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:30:21,321 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 19:30:21,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:30:21,397 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-21 19:30:21,397 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:30:21,482 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-21 19:30:21,482 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:30:21,483 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [621649599] [2021-10-21 19:30:21,483 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [621649599] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:30:21,483 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:30:21,484 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-21 19:30:21,484 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918150456] [2021-10-21 19:30:21,484 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-21 19:30:21,486 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:30:21,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 19:30:21,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:30:21,490 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-21 19:30:21,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:30:21,506 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2021-10-21 19:30:21,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 19:30:21,507 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 20 [2021-10-21 19:30:21,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:30:21,510 INFO L225 Difference]: With dead ends: 24 [2021-10-21 19:30:21,510 INFO L226 Difference]: Without dead ends: 24 [2021-10-21 19:30:21,510 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.8ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:30:21,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2021-10-21 19:30:21,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2021-10-21 19:30:21,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 15 states have internal predecessors, (16), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-10-21 19:30:21,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2021-10-21 19:30:21,518 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 20 [2021-10-21 19:30:21,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:30:21,519 INFO L470 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2021-10-21 19:30:21,519 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-21 19:30:21,519 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2021-10-21 19:30:21,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-21 19:30:21,520 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:30:21,523 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:30:21,542 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d7e314-d46f-4234-b7ad-f2932f41e8d2/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-21 19:30:21,738 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d7e314-d46f-4234-b7ad-f2932f41e8d2/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:30:21,739 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-21 19:30:21,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:30:21,739 INFO L82 PathProgramCache]: Analyzing trace with hash 882916751, now seen corresponding path program 1 times [2021-10-21 19:30:21,740 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:30:21,740 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1938408316] [2021-10-21 19:30:21,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:30:21,741 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:30:21,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d7e314-d46f-4234-b7ad-f2932f41e8d2/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:30:21,742 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d7e314-d46f-4234-b7ad-f2932f41e8d2/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:30:21,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d7e314-d46f-4234-b7ad-f2932f41e8d2/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-21 19:30:21,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:30:21,926 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-21 19:30:21,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:30:22,393 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 19:30:22,394 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:30:22,596 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-21 19:30:22,596 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:30:22,596 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1938408316] [2021-10-21 19:30:22,597 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1938408316] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:30:22,597 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:30:22,597 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 4] imperfect sequences [] total 9 [2021-10-21 19:30:22,597 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911449985] [2021-10-21 19:30:22,598 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-21 19:30:22,598 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:30:22,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-21 19:30:22,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-10-21 19:30:22,599 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand has 10 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 8 states have internal predecessors, (25), 3 states have call successors, (9), 3 states have call predecessors, (9), 5 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2021-10-21 19:30:22,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:30:22,781 INFO L93 Difference]: Finished difference Result 38 states and 42 transitions. [2021-10-21 19:30:22,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-21 19:30:22,783 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 8 states have internal predecessors, (25), 3 states have call successors, (9), 3 states have call predecessors, (9), 5 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) Word has length 21 [2021-10-21 19:30:22,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:30:22,784 INFO L225 Difference]: With dead ends: 38 [2021-10-21 19:30:22,784 INFO L226 Difference]: Without dead ends: 38 [2021-10-21 19:30:22,784 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 166.5ms TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-10-21 19:30:22,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-10-21 19:30:22,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 23. [2021-10-21 19:30:22,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-10-21 19:30:22,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2021-10-21 19:30:22,793 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 21 [2021-10-21 19:30:22,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:30:22,794 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2021-10-21 19:30:22,795 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 8 states have internal predecessors, (25), 3 states have call successors, (9), 3 states have call predecessors, (9), 5 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2021-10-21 19:30:22,798 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2021-10-21 19:30:22,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-21 19:30:22,801 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:30:22,801 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:30:22,822 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d7e314-d46f-4234-b7ad-f2932f41e8d2/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-21 19:30:23,014 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d7e314-d46f-4234-b7ad-f2932f41e8d2/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:30:23,014 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-21 19:30:23,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:30:23,015 INFO L82 PathProgramCache]: Analyzing trace with hash 1600615901, now seen corresponding path program 1 times [2021-10-21 19:30:23,015 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:30:23,016 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [151771113] [2021-10-21 19:30:23,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:30:23,016 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:30:23,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d7e314-d46f-4234-b7ad-f2932f41e8d2/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:30:23,017 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d7e314-d46f-4234-b7ad-f2932f41e8d2/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:30:23,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d7e314-d46f-4234-b7ad-f2932f41e8d2/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-21 19:30:23,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:30:23,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 19:30:23,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:30:23,306 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 19:30:23,349 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-21 19:30:23,350 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:30:23,473 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-21 19:30:23,474 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:30:23,474 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [151771113] [2021-10-21 19:30:23,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [151771113] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:30:23,474 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:30:23,475 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-21 19:30:23,475 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427584256] [2021-10-21 19:30:23,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-21 19:30:23,476 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:30:23,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 19:30:23,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:30:23,477 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-21 19:30:23,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:30:23,528 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions. [2021-10-21 19:30:23,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 19:30:23,528 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 22 [2021-10-21 19:30:23,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:30:23,530 INFO L225 Difference]: With dead ends: 29 [2021-10-21 19:30:23,531 INFO L226 Difference]: Without dead ends: 29 [2021-10-21 19:30:23,531 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.3ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:30:23,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-10-21 19:30:23,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2021-10-21 19:30:23,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 19 states have internal predecessors, (20), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2021-10-21 19:30:23,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2021-10-21 19:30:23,541 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 22 [2021-10-21 19:30:23,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:30:23,541 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2021-10-21 19:30:23,542 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-21 19:30:23,542 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2021-10-21 19:30:23,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-21 19:30:23,545 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:30:23,545 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] [2021-10-21 19:30:23,566 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d7e314-d46f-4234-b7ad-f2932f41e8d2/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-21 19:30:23,758 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d7e314-d46f-4234-b7ad-f2932f41e8d2/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:30:23,759 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-21 19:30:23,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:30:23,760 INFO L82 PathProgramCache]: Analyzing trace with hash -1806847714, now seen corresponding path program 1 times [2021-10-21 19:30:23,760 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:30:23,761 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1537255802] [2021-10-21 19:30:23,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:30:23,761 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:30:23,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d7e314-d46f-4234-b7ad-f2932f41e8d2/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:30:23,763 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d7e314-d46f-4234-b7ad-f2932f41e8d2/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:30:23,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d7e314-d46f-4234-b7ad-f2932f41e8d2/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-21 19:30:23,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:30:23,979 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 19:30:23,981 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:30:24,058 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-21 19:30:24,059 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:30:24,138 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-21 19:30:24,138 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:30:24,138 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1537255802] [2021-10-21 19:30:24,139 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1537255802] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:30:24,139 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:30:24,139 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-21 19:30:24,139 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112351147] [2021-10-21 19:30:24,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-21 19:30:24,140 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:30:24,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 19:30:24,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:30:24,141 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-21 19:30:24,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:30:24,162 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2021-10-21 19:30:24,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 19:30:24,162 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 22 [2021-10-21 19:30:24,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:30:24,164 INFO L225 Difference]: With dead ends: 30 [2021-10-21 19:30:24,164 INFO L226 Difference]: Without dead ends: 30 [2021-10-21 19:30:24,165 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.3ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:30:24,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-10-21 19:30:24,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 22. [2021-10-21 19:30:24,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 13 states have internal predecessors, (14), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-10-21 19:30:24,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2021-10-21 19:30:24,179 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 22 [2021-10-21 19:30:24,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:30:24,180 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2021-10-21 19:30:24,180 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-21 19:30:24,180 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2021-10-21 19:30:24,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-21 19:30:24,181 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:30:24,181 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:30:24,196 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d7e314-d46f-4234-b7ad-f2932f41e8d2/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-21 19:30:24,392 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d7e314-d46f-4234-b7ad-f2932f41e8d2/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:30:24,393 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-21 19:30:24,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:30:24,394 INFO L82 PathProgramCache]: Analyzing trace with hash 1221784944, now seen corresponding path program 1 times [2021-10-21 19:30:24,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:30:24,396 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [898241466] [2021-10-21 19:30:24,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:30:24,396 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:30:24,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d7e314-d46f-4234-b7ad-f2932f41e8d2/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:30:24,397 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d7e314-d46f-4234-b7ad-f2932f41e8d2/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:30:24,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d7e314-d46f-4234-b7ad-f2932f41e8d2/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-21 19:30:24,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:30:24,648 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:30:24,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:30:24,719 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-10-21 19:30:24,720 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-21 19:30:24,721 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-10-21 19:30:24,723 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION [2021-10-21 19:30:24,724 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION [2021-10-21 19:30:24,724 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION [2021-10-21 19:30:24,724 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION [2021-10-21 19:30:24,724 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION [2021-10-21 19:30:24,725 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION [2021-10-21 19:30:24,725 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION [2021-10-21 19:30:24,725 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION [2021-10-21 19:30:24,725 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION [2021-10-21 19:30:24,725 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION [2021-10-21 19:30:24,725 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION [2021-10-21 19:30:24,726 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION [2021-10-21 19:30:24,726 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION [2021-10-21 19:30:24,726 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION [2021-10-21 19:30:24,726 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION [2021-10-21 19:30:24,727 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION [2021-10-21 19:30:24,727 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION [2021-10-21 19:30:24,727 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION [2021-10-21 19:30:24,727 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION [2021-10-21 19:30:24,727 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION [2021-10-21 19:30:24,728 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION [2021-10-21 19:30:24,728 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION [2021-10-21 19:30:24,728 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION [2021-10-21 19:30:24,728 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION [2021-10-21 19:30:24,728 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION [2021-10-21 19:30:24,729 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION [2021-10-21 19:30:24,729 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION [2021-10-21 19:30:24,729 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION [2021-10-21 19:30:24,729 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION [2021-10-21 19:30:24,730 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION [2021-10-21 19:30:24,730 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION [2021-10-21 19:30:24,730 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION [2021-10-21 19:30:24,730 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION [2021-10-21 19:30:24,730 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION [2021-10-21 19:30:24,731 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION [2021-10-21 19:30:24,731 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION [2021-10-21 19:30:24,731 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION [2021-10-21 19:30:24,731 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION [2021-10-21 19:30:24,731 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION [2021-10-21 19:30:24,732 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION [2021-10-21 19:30:24,732 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION [2021-10-21 19:30:24,732 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION [2021-10-21 19:30:24,732 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:30:24,733 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:30:24,733 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:30:24,733 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:30:24,733 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:30:24,734 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:30:24,734 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION [2021-10-21 19:30:24,734 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION [2021-10-21 19:30:24,734 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION [2021-10-21 19:30:24,734 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION [2021-10-21 19:30:24,735 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION [2021-10-21 19:30:24,735 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION [2021-10-21 19:30:24,735 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION [2021-10-21 19:30:24,735 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION [2021-10-21 19:30:24,736 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:30:24,736 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:30:24,736 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:30:24,736 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:30:24,736 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:30:24,737 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:30:24,737 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION [2021-10-21 19:30:24,737 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION [2021-10-21 19:30:24,737 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION [2021-10-21 19:30:24,738 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION [2021-10-21 19:30:24,738 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION [2021-10-21 19:30:24,738 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION [2021-10-21 19:30:24,738 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION [2021-10-21 19:30:24,738 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION [2021-10-21 19:30:24,739 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:30:24,739 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:30:24,739 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:30:24,761 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d7e314-d46f-4234-b7ad-f2932f41e8d2/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-21 19:30:24,961 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d7e314-d46f-4234-b7ad-f2932f41e8d2/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:30:24,967 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-21 19:30:24,976 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-10-21 19:30:24,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 07:30:24 BoogieIcfgContainer [2021-10-21 19:30:24,998 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-21 19:30:24,999 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:30:24,999 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:30:24,999 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:30:24,999 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:30:19" (3/4) ... [2021-10-21 19:30:25,003 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-21 19:30:25,003 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:30:25,005 INFO L168 Benchmark]: Toolchain (without parser) took 7775.77 ms. Allocated memory was 50.3 MB in the beginning and 92.3 MB in the end (delta: 41.9 MB). Free memory was 25.7 MB in the beginning and 55.3 MB in the end (delta: -29.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-21 19:30:25,005 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 50.3 MB. Free memory was 30.9 MB in the beginning and 30.9 MB in the end (delta: 37.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:30:25,006 INFO L168 Benchmark]: CACSL2BoogieTranslator took 794.19 ms. Allocated memory was 50.3 MB in the beginning and 62.9 MB in the end (delta: 12.6 MB). Free memory was 25.4 MB in the beginning and 42.8 MB in the end (delta: -17.3 MB). Peak memory consumption was 11.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:30:25,006 INFO L168 Benchmark]: Boogie Preprocessor took 97.94 ms. Allocated memory is still 62.9 MB. Free memory was 42.8 MB in the beginning and 38.2 MB in the end (delta: 4.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-21 19:30:25,007 INFO L168 Benchmark]: RCFGBuilder took 1392.16 ms. Allocated memory is still 62.9 MB. Free memory was 38.2 MB in the beginning and 25.8 MB in the end (delta: 12.4 MB). Peak memory consumption was 17.6 MB. Max. memory is 16.1 GB. [2021-10-21 19:30:25,007 INFO L168 Benchmark]: TraceAbstraction took 5480.17 ms. Allocated memory was 62.9 MB in the beginning and 92.3 MB in the end (delta: 29.4 MB). Free memory was 25.5 MB in the beginning and 56.0 MB in the end (delta: -30.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:30:25,008 INFO L168 Benchmark]: Witness Printer took 4.67 ms. Allocated memory is still 92.3 MB. Free memory was 56.0 MB in the beginning and 55.3 MB in the end (delta: 720.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:30:25,010 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 50.3 MB. Free memory was 30.9 MB in the beginning and 30.9 MB in the end (delta: 37.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 794.19 ms. Allocated memory was 50.3 MB in the beginning and 62.9 MB in the end (delta: 12.6 MB). Free memory was 25.4 MB in the beginning and 42.8 MB in the end (delta: -17.3 MB). Peak memory consumption was 11.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 97.94 ms. Allocated memory is still 62.9 MB. Free memory was 42.8 MB in the beginning and 38.2 MB in the end (delta: 4.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1392.16 ms. Allocated memory is still 62.9 MB. Free memory was 38.2 MB in the beginning and 25.8 MB in the end (delta: 12.4 MB). Peak memory consumption was 17.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5480.17 ms. Allocated memory was 62.9 MB in the beginning and 92.3 MB in the end (delta: 29.4 MB). Free memory was 25.5 MB in the beginning and 56.0 MB in the end (delta: -30.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 4.67 ms. Allocated memory is still 92.3 MB. Free memory was 56.0 MB in the beginning and 55.3 MB in the end (delta: 720.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 764]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 764. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; VAL [\old(ldv_global_msg_list)=null, \old(ldv_global_msg_list)=null, ldv_global_msg_list={-2147483648:0}] [L765] CALL entry_point() VAL [ldv_global_msg_list={-2147483648:0}] [L758] CALL, EXPR ldv_malloc(sizeof(int)) VAL [\old(size)=4, ldv_global_msg_list={-2147483648:0}] [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L758] RET, EXPR ldv_malloc(sizeof(int)) VAL [ldv_global_msg_list={-2147483648:0}, ldv_malloc(sizeof(int))={1:0}] [L758] int *p = (int *)ldv_malloc(sizeof(int)); [L759] COND TRUE \read(*p) VAL [ldv_global_msg_list={-2147483648:0}, p={1:0}] [L760] CALL, EXPR ldv_malloc(sizeof(int)) VAL [\old(size)=4, ldv_global_msg_list={-2147483648:0}] [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L760] RET, EXPR ldv_malloc(sizeof(int)) VAL [ldv_global_msg_list={-2147483648:0}, ldv_malloc(sizeof(int))={2:0}, p={1:0}] [L760] int *q = (int *)ldv_malloc(sizeof(int)); [L761] free(q) VAL [ldv_global_msg_list={-2147483648:0}, p={1:0}, q={2:0}] [L761] free(q) VAL [ldv_global_msg_list={-2147483648:0}, p={1:0}, q={2:0}] [L761] free(q) [L765] RET entry_point() VAL [ldv_global_msg_list={-2147483648:0}] - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 761]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 761]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 761]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 47 procedures, 338 locations, 74 error locations. Started 1 CEGAR loops. OverallTime: 5393.7ms, OverallIterations: 7, TraceHistogramMax: 2, EmptinessCheckTime: 22.8ms, AutomataDifference: 415.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 10.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 161 SDtfs, 64 SDslu, 321 SDs, 0 SdLazy, 134 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 234.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 228 GetRequests, 206 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 233.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=98occurred in iteration=0, InterpolantAutomatonStates: 33, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 74.9ms AutomataMinimizationTime, 6 MinimizatonAttempts, 45 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 61.6ms SsaConstructionTime, 196.7ms SatisfiabilityAnalysisTime, 1787.7ms InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 222 ConstructedInterpolants, 12 QuantifiedInterpolants, 542 SizeOfPredicates, 1 NumberOfNonLiveVariables, 455 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 32/32 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 19:30:25,064 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d7e314-d46f-4234-b7ad-f2932f41e8d2/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...