./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test16.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_6a8298a1-0ae0-4080-bf02-b8b02b2c663c/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8298a1-0ae0-4080-bf02-b8b02b2c663c/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_6a8298a1-0ae0-4080-bf02-b8b02b2c663c/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8298a1-0ae0-4080-bf02-b8b02b2c663c/bin/uautomizer-j4sWxH34Be/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test16.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8298a1-0ae0-4080-bf02-b8b02b2c663c/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_6a8298a1-0ae0-4080-bf02-b8b02b2c663c/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 c11af8296bfd5ac190948fd112a042e269f74b0ed21dcbb0764a4b3dab5067a3 ................................................................................................................................... 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_6a8298a1-0ae0-4080-bf02-b8b02b2c663c/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8298a1-0ae0-4080-bf02-b8b02b2c663c/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_6a8298a1-0ae0-4080-bf02-b8b02b2c663c/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8298a1-0ae0-4080-bf02-b8b02b2c663c/bin/uautomizer-j4sWxH34Be/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test16.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8298a1-0ae0-4080-bf02-b8b02b2c663c/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_6a8298a1-0ae0-4080-bf02-b8b02b2c663c/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 c11af8296bfd5ac190948fd112a042e269f74b0ed21dcbb0764a4b3dab5067a3 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 19:51:48,712 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:51:48,714 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:51:48,745 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:51:48,745 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:51:48,747 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:51:48,749 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:51:48,751 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:51:48,753 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:51:48,755 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:51:48,756 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:51:48,758 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:51:48,758 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:51:48,760 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:51:48,762 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:51:48,764 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:51:48,765 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:51:48,766 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:51:48,769 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:51:48,772 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:51:48,774 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:51:48,776 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:51:48,778 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:51:48,779 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:51:48,783 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:51:48,783 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:51:48,784 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:51:48,785 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:51:48,786 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:51:48,787 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:51:48,788 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:51:48,789 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:51:48,790 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:51:48,791 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:51:48,792 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:51:48,793 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:51:48,794 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:51:48,795 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:51:48,795 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:51:48,796 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:51:48,798 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:51:48,799 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8298a1-0ae0-4080-bf02-b8b02b2c663c/bin/uautomizer-j4sWxH34Be/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-10-21 19:51:48,824 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:51:48,824 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:51:48,825 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:51:48,825 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:51:48,826 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:51:48,826 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:51:48,827 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:51:48,827 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:51:48,828 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:51:48,828 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 19:51:48,828 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:51:48,828 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:51:48,829 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:51:48,829 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-21 19:51:48,830 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-21 19:51:48,830 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-21 19:51:48,830 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 19:51:48,831 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-21 19:51:48,831 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:51:48,831 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:51:48,832 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:51:48,832 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:51:48,832 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 19:51:48,833 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:51:48,833 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:51:48,833 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 19:51:48,834 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:51:48,834 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-21 19:51:48,834 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:51:48,835 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_6a8298a1-0ae0-4080-bf02-b8b02b2c663c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8298a1-0ae0-4080-bf02-b8b02b2c663c/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c11af8296bfd5ac190948fd112a042e269f74b0ed21dcbb0764a4b3dab5067a3 [2021-10-21 19:51:49,062 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:51:49,083 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:51:49,086 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:51:49,088 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:51:49,089 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:51:49,090 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8298a1-0ae0-4080-bf02-b8b02b2c663c/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/ldv-memsafety/memleaks_test16.i [2021-10-21 19:51:49,156 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8298a1-0ae0-4080-bf02-b8b02b2c663c/bin/uautomizer-j4sWxH34Be/data/c50b40dd7/28af9624e03b48ea938170775db065dd/FLAG5e7c8f0ee [2021-10-21 19:51:49,747 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:51:49,748 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8298a1-0ae0-4080-bf02-b8b02b2c663c/sv-benchmarks/c/ldv-memsafety/memleaks_test16.i [2021-10-21 19:51:49,769 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8298a1-0ae0-4080-bf02-b8b02b2c663c/bin/uautomizer-j4sWxH34Be/data/c50b40dd7/28af9624e03b48ea938170775db065dd/FLAG5e7c8f0ee [2021-10-21 19:51:50,069 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8298a1-0ae0-4080-bf02-b8b02b2c663c/bin/uautomizer-j4sWxH34Be/data/c50b40dd7/28af9624e03b48ea938170775db065dd [2021-10-21 19:51:50,072 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:51:50,073 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-21 19:51:50,075 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:51:50,076 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:51:50,079 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:51:50,080 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:51:50" (1/1) ... [2021-10-21 19:51:50,081 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bb0ee6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:51:50, skipping insertion in model container [2021-10-21 19:51:50,082 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:51:50" (1/1) ... [2021-10-21 19:51:50,089 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:51:50,142 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:51:50,587 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:51:50,609 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 19:51:50,610 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5f92319e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:51:50, skipping insertion in model container [2021-10-21 19:51:50,610 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:51:50,611 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-10-21 19:51:50,614 INFO L168 Benchmark]: Toolchain (without parser) took 538.54 ms. Allocated memory is still 127.9 MB. Free memory was 97.0 MB in the beginning and 102.4 MB in the end (delta: -5.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:51:50,615 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 86.0 MB. Free memory is still 42.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:51:50,617 INFO L168 Benchmark]: CACSL2BoogieTranslator took 535.61 ms. Allocated memory is still 127.9 MB. Free memory was 96.7 MB in the beginning and 102.4 MB in the end (delta: -5.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:51:50,620 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 86.0 MB. Free memory is still 42.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 535.61 ms. Allocated memory is still 127.9 MB. Free memory was 96.7 MB in the beginning and 102.4 MB in the end (delta: -5.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 19:51:52,889 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:51:52,891 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:51:52,925 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:51:52,926 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:51:52,927 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:51:52,929 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:51:52,932 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:51:52,934 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:51:52,936 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:51:52,937 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:51:52,938 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:51:52,939 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:51:52,940 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:51:52,942 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:51:52,944 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:51:52,945 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:51:52,946 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:51:52,948 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:51:52,951 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:51:52,953 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:51:52,954 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:51:52,956 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:51:52,957 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:51:52,961 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:51:52,961 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:51:52,962 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:51:52,963 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:51:52,963 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:51:52,965 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:51:52,965 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:51:52,966 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:51:52,967 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:51:52,968 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:51:52,969 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:51:52,970 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:51:52,971 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:51:52,971 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:51:52,972 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:51:52,973 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:51:52,974 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:51:52,976 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8298a1-0ae0-4080-bf02-b8b02b2c663c/bin/uautomizer-j4sWxH34Be/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-21 19:51:53,023 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:51:53,023 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:51:53,024 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:51:53,024 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:51:53,025 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:51:53,025 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:51:53,025 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:51:53,026 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:51:53,026 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:51:53,026 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 19:51:53,027 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:51:53,027 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:51:53,027 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:51:53,027 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-21 19:51:53,027 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-21 19:51:53,028 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-21 19:51:53,028 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 19:51:53,028 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-21 19:51:53,028 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-21 19:51:53,029 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-21 19:51:53,029 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:51:53,029 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:51:53,029 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:51:53,030 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:51:53,032 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 19:51:53,033 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:51:53,033 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:51:53,033 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 19:51:53,034 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-21 19:51:53,034 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-21 19:51:53,034 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:51:53,034 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-21 19:51:53,035 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_6a8298a1-0ae0-4080-bf02-b8b02b2c663c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8298a1-0ae0-4080-bf02-b8b02b2c663c/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c11af8296bfd5ac190948fd112a042e269f74b0ed21dcbb0764a4b3dab5067a3 [2021-10-21 19:51:53,450 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:51:53,472 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:51:53,475 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:51:53,477 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:51:53,478 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:51:53,479 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8298a1-0ae0-4080-bf02-b8b02b2c663c/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/ldv-memsafety/memleaks_test16.i [2021-10-21 19:51:53,554 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8298a1-0ae0-4080-bf02-b8b02b2c663c/bin/uautomizer-j4sWxH34Be/data/cf0a7812c/b37775d468de4bcc8919711f964c7a79/FLAG7de34cf45 [2021-10-21 19:51:54,215 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:51:54,216 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8298a1-0ae0-4080-bf02-b8b02b2c663c/sv-benchmarks/c/ldv-memsafety/memleaks_test16.i [2021-10-21 19:51:54,250 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8298a1-0ae0-4080-bf02-b8b02b2c663c/bin/uautomizer-j4sWxH34Be/data/cf0a7812c/b37775d468de4bcc8919711f964c7a79/FLAG7de34cf45 [2021-10-21 19:51:54,497 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8298a1-0ae0-4080-bf02-b8b02b2c663c/bin/uautomizer-j4sWxH34Be/data/cf0a7812c/b37775d468de4bcc8919711f964c7a79 [2021-10-21 19:51:54,501 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:51:54,503 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-21 19:51:54,504 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:51:54,505 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:51:54,511 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:51:54,512 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:51:54" (1/1) ... [2021-10-21 19:51:54,513 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a44bddd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:51:54, skipping insertion in model container [2021-10-21 19:51:54,514 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:51:54" (1/1) ... [2021-10-21 19:51:54,521 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:51:54,568 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:51:55,044 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:51:55,069 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-21 19:51:55,089 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:51:55,177 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:51:55,188 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:51:55,275 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:51:55,338 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:51:55,339 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:51:55 WrapperNode [2021-10-21 19:51:55,339 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:51:55,340 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:51:55,341 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:51:55,341 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:51:55,353 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:51:55" (1/1) ... [2021-10-21 19:51:55,353 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:51:55" (1/1) ... [2021-10-21 19:51:55,389 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:51:55" (1/1) ... [2021-10-21 19:51:55,389 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:51:55" (1/1) ... [2021-10-21 19:51:55,441 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:51:55" (1/1) ... [2021-10-21 19:51:55,454 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:51:55" (1/1) ... [2021-10-21 19:51:55,460 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:51:55" (1/1) ... [2021-10-21 19:51:55,475 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:51:55,476 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:51:55,476 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:51:55,476 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:51:55,477 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:51:55" (1/1) ... [2021-10-21 19:51:55,485 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:51:55,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8298a1-0ae0-4080-bf02-b8b02b2c663c/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:51:55,526 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8298a1-0ae0-4080-bf02-b8b02b2c663c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-21 19:51:55,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8298a1-0ae0-4080-bf02-b8b02b2c663c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-21 19:51:55,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-21 19:51:55,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:51:55,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-10-21 19:51:55,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-10-21 19:51:55,592 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-10-21 19:51:55,594 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-10-21 19:51:55,595 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-10-21 19:51:55,595 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-10-21 19:51:55,595 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-10-21 19:51:55,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-10-21 19:51:55,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-10-21 19:51:55,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-10-21 19:51:55,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-10-21 19:51:55,596 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-10-21 19:51:55,596 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-10-21 19:51:55,596 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-10-21 19:51:55,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-10-21 19:51:55,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-10-21 19:51:55,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-10-21 19:51:55,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-10-21 19:51:55,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-10-21 19:51:55,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-10-21 19:51:55,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-10-21 19:51:55,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-10-21 19:51:55,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-10-21 19:51:55,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-10-21 19:51:55,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-10-21 19:51:55,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-10-21 19:51:55,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-10-21 19:51:55,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-10-21 19:51:55,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-10-21 19:51:55,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-10-21 19:51:55,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-10-21 19:51:55,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-10-21 19:51:55,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-10-21 19:51:55,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-10-21 19:51:55,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-10-21 19:51:55,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-10-21 19:51:55,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-10-21 19:51:55,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-10-21 19:51:55,614 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-10-21 19:51:55,614 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-10-21 19:51:55,615 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_16 [2021-10-21 19:51:55,615 INFO L138 BoogieDeclarations]: Found implementation of procedure free_16 [2021-10-21 19:51:55,615 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-10-21 19:51:55,616 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-21 19:51:55,617 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-10-21 19:51:55,617 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-10-21 19:51:55,617 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-10-21 19:51:55,618 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-10-21 19:51:55,618 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-10-21 19:51:55,618 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-10-21 19:51:55,618 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-10-21 19:51:55,618 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-10-21 19:51:55,618 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-10-21 19:51:55,619 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-10-21 19:51:55,619 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-10-21 19:51:55,619 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-10-21 19:51:55,619 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-10-21 19:51:55,620 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-10-21 19:51:55,620 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-10-21 19:51:55,621 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-10-21 19:51:55,622 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-10-21 19:51:55,622 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-10-21 19:51:55,623 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-10-21 19:51:55,623 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-10-21 19:51:55,623 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-10-21 19:51:55,623 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-10-21 19:51:55,624 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-10-21 19:51:55,624 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-10-21 19:51:55,624 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-10-21 19:51:55,624 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-10-21 19:51:55,624 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-10-21 19:51:55,624 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-10-21 19:51:55,624 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-10-21 19:51:55,625 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-10-21 19:51:55,625 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-10-21 19:51:55,626 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-10-21 19:51:55,626 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-10-21 19:51:55,626 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-10-21 19:51:55,626 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-10-21 19:51:55,627 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-10-21 19:51:55,627 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-10-21 19:51:55,627 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-10-21 19:51:55,627 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-10-21 19:51:55,627 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-10-21 19:51:55,627 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-10-21 19:51:55,627 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-10-21 19:51:55,628 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-10-21 19:51:55,628 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-10-21 19:51:55,628 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-10-21 19:51:55,628 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-10-21 19:51:55,628 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-10-21 19:51:55,628 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-10-21 19:51:55,629 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-10-21 19:51:55,629 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-10-21 19:51:55,629 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-10-21 19:51:55,629 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-10-21 19:51:55,630 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-10-21 19:51:55,630 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-10-21 19:51:55,630 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-10-21 19:51:55,630 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-10-21 19:51:55,630 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-10-21 19:51:55,630 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-10-21 19:51:55,631 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-10-21 19:51:55,631 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-10-21 19:51:55,631 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-10-21 19:51:55,631 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-10-21 19:51:55,631 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-10-21 19:51:55,632 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-10-21 19:51:55,632 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-10-21 19:51:55,632 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-10-21 19:51:55,632 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-21 19:51:55,632 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-10-21 19:51:55,632 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-10-21 19:51:55,633 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-10-21 19:51:55,633 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-10-21 19:51:55,633 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-10-21 19:51:55,633 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-10-21 19:51:55,634 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-10-21 19:51:55,634 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-10-21 19:51:55,634 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-10-21 19:51:55,635 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-10-21 19:51:55,635 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-10-21 19:51:55,638 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-10-21 19:51:55,639 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-10-21 19:51:55,639 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-10-21 19:51:55,639 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-10-21 19:51:55,640 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-10-21 19:51:55,641 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-10-21 19:51:55,641 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-10-21 19:51:55,641 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-10-21 19:51:55,642 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-10-21 19:51:55,649 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-10-21 19:51:55,649 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-10-21 19:51:55,650 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-10-21 19:51:55,650 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-10-21 19:51:55,650 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-10-21 19:51:55,650 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-10-21 19:51:55,650 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-10-21 19:51:55,650 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-10-21 19:51:55,650 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-10-21 19:51:55,651 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-10-21 19:51:55,651 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-10-21 19:51:55,651 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-10-21 19:51:55,651 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-10-21 19:51:55,651 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-10-21 19:51:55,651 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-10-21 19:51:55,651 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-10-21 19:51:55,652 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-10-21 19:51:55,652 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-10-21 19:51:55,652 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-10-21 19:51:55,652 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-10-21 19:51:55,652 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-10-21 19:51:55,652 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-10-21 19:51:55,652 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-10-21 19:51:55,653 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-10-21 19:51:55,653 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-21 19:51:55,653 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-10-21 19:51:55,653 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-10-21 19:51:55,653 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-10-21 19:51:55,653 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-10-21 19:51:55,654 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-10-21 19:51:55,654 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-21 19:51:55,654 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-10-21 19:51:55,654 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-10-21 19:51:55,654 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-10-21 19:51:55,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-21 19:51:55,654 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-10-21 19:51:55,655 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-10-21 19:51:55,655 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-10-21 19:51:55,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-21 19:51:55,655 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-10-21 19:51:55,655 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-10-21 19:51:55,655 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-10-21 19:51:55,655 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-10-21 19:51:55,655 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-10-21 19:51:55,656 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-10-21 19:51:55,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-21 19:51:55,656 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-10-21 19:51:55,656 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-10-21 19:51:55,656 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-10-21 19:51:55,656 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-10-21 19:51:55,656 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-10-21 19:51:55,657 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-21 19:51:55,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-21 19:51:55,657 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-10-21 19:51:55,657 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-10-21 19:51:55,657 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-10-21 19:51:55,657 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-10-21 19:51:55,657 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-10-21 19:51:55,658 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-10-21 19:51:55,658 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-10-21 19:51:55,658 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-10-21 19:51:55,658 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-10-21 19:51:55,658 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-10-21 19:51:55,658 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-10-21 19:51:55,658 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-10-21 19:51:55,659 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-10-21 19:51:55,659 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-10-21 19:51:55,659 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-10-21 19:51:55,659 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-10-21 19:51:55,659 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-10-21 19:51:55,659 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_16 [2021-10-21 19:51:55,660 INFO L130 BoogieDeclarations]: Found specification of procedure free_16 [2021-10-21 19:51:55,660 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-10-21 19:51:55,660 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-21 19:51:55,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-21 19:51:55,660 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:51:55,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-21 19:51:55,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:51:55,661 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-10-21 19:51:55,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-10-21 19:51:55,661 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-10-21 19:51:55,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-10-21 19:51:55,661 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-10-21 19:51:56,258 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-21 19:51:56,679 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-21 19:51:57,040 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:51:57,040 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-10-21 19:51:57,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:51:57 BoogieIcfgContainer [2021-10-21 19:51:57,043 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:51:57,051 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-21 19:51:57,051 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-21 19:51:57,054 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-21 19:51:57,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 07:51:54" (1/3) ... [2021-10-21 19:51:57,055 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ec127ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:51:57, skipping insertion in model container [2021-10-21 19:51:57,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:51:55" (2/3) ... [2021-10-21 19:51:57,057 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ec127ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:51:57, skipping insertion in model container [2021-10-21 19:51:57,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:51:57" (3/3) ... [2021-10-21 19:51:57,059 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test16.i [2021-10-21 19:51:57,065 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-21 19:51:57,065 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 74 error locations. [2021-10-21 19:51:57,127 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-21 19:51:57,133 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 19:51:57,133 INFO L340 AbstractCegarLoop]: Starting to check reachability of 74 error locations. [2021-10-21 19:51:57,159 INFO L276 IsEmpty]: Start isEmpty. Operand has 107 states, 60 states have (on average 1.4833333333333334) internal successors, (89), 81 states have internal predecessors, (89), 13 states have call successors, (13), 12 states have call predecessors, (13), 12 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2021-10-21 19:51:57,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-21 19:51:57,177 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:51:57,177 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:51:57,180 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting free_16Err0ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-21 19:51:57,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:51:57,187 INFO L82 PathProgramCache]: Analyzing trace with hash 997159282, now seen corresponding path program 1 times [2021-10-21 19:51:57,199 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:51:57,199 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1886054215] [2021-10-21 19:51:57,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:51:57,201 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:51:57,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8298a1-0ae0-4080-bf02-b8b02b2c663c/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:51:57,206 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8298a1-0ae0-4080-bf02-b8b02b2c663c/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:51:57,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8298a1-0ae0-4080-bf02-b8b02b2c663c/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-21 19:51:57,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:51:57,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-21 19:51:57,441 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:51:57,616 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 19:51:57,617 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:51:57,788 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 19:51:57,789 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:51:57,790 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1886054215] [2021-10-21 19:51:57,791 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1886054215] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:51:57,792 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:51:57,793 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 8 [2021-10-21 19:51:57,795 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267012041] [2021-10-21 19:51:57,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-21 19:51:57,803 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:51:57,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-21 19:51:57,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-10-21 19:51:57,823 INFO L87 Difference]: Start difference. First operand has 107 states, 60 states have (on average 1.4833333333333334) internal successors, (89), 81 states have internal predecessors, (89), 13 states have call successors, (13), 12 states have call predecessors, (13), 12 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 8 states, 8 states have (on average 1.5) internal successors, (12), 7 states have internal predecessors, (12), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-21 19:51:57,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:51:57,932 INFO L93 Difference]: Finished difference Result 49 states and 51 transitions. [2021-10-21 19:51:57,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-21 19:51:57,934 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.5) internal successors, (12), 7 states have internal predecessors, (12), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2021-10-21 19:51:57,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:51:57,944 INFO L225 Difference]: With dead ends: 49 [2021-10-21 19:51:57,945 INFO L226 Difference]: Without dead ends: 46 [2021-10-21 19:51:57,946 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 64.2ms TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-10-21 19:51:57,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-10-21 19:51:57,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 42. [2021-10-21 19:51:57,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 24 states have (on average 1.25) internal successors, (30), 28 states have internal predecessors, (30), 7 states have call successors, (7), 7 states have call predecessors, (7), 7 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2021-10-21 19:51:57,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 44 transitions. [2021-10-21 19:51:57,982 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 44 transitions. Word has length 17 [2021-10-21 19:51:57,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:51:57,982 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 44 transitions. [2021-10-21 19:51:57,982 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.5) internal successors, (12), 7 states have internal predecessors, (12), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-21 19:51:57,982 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 44 transitions. [2021-10-21 19:51:57,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-21 19:51:57,984 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:51:57,984 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:51:57,999 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8298a1-0ae0-4080-bf02-b8b02b2c663c/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-21 19:51:58,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8298a1-0ae0-4080-bf02-b8b02b2c663c/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:51:58,190 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 19:51:58,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:51:58,191 INFO L82 PathProgramCache]: Analyzing trace with hash 965683329, now seen corresponding path program 1 times [2021-10-21 19:51:58,191 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:51:58,192 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [59437839] [2021-10-21 19:51:58,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:51:58,192 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:51:58,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8298a1-0ae0-4080-bf02-b8b02b2c663c/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:51:58,195 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8298a1-0ae0-4080-bf02-b8b02b2c663c/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:51:58,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8298a1-0ae0-4080-bf02-b8b02b2c663c/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-21 19:51:58,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:51:58,434 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-21 19:51:58,436 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:51:58,534 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 19:51:58,535 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:51:58,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:51:58,704 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:51:58,704 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [59437839] [2021-10-21 19:51:58,704 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [59437839] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:51:58,704 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:51:58,704 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-21 19:51:58,705 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409143033] [2021-10-21 19:51:58,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:51:58,706 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:51:58,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:51:58,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:51:58,707 INFO L87 Difference]: Start difference. First operand 42 states and 44 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-21 19:51:58,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:51:58,772 INFO L93 Difference]: Finished difference Result 54 states and 57 transitions. [2021-10-21 19:51:58,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:51:58,773 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 21 [2021-10-21 19:51:58,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:51:58,778 INFO L225 Difference]: With dead ends: 54 [2021-10-21 19:51:58,778 INFO L226 Difference]: Without dead ends: 43 [2021-10-21 19:51:58,779 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:51:58,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-10-21 19:51:58,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2021-10-21 19:51:58,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 29 states have internal predecessors, (29), 7 states have call successors, (7), 6 states have call predecessors, (7), 8 states have return successors, (9), 7 states have call predecessors, (9), 6 states have call successors, (9) [2021-10-21 19:51:58,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 45 transitions. [2021-10-21 19:51:58,802 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 45 transitions. Word has length 21 [2021-10-21 19:51:58,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:51:58,802 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 45 transitions. [2021-10-21 19:51:58,802 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-21 19:51:58,802 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 45 transitions. [2021-10-21 19:51:58,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-21 19:51:58,804 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:51:58,804 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:51:58,820 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8298a1-0ae0-4080-bf02-b8b02b2c663c/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-21 19:51:59,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8298a1-0ae0-4080-bf02-b8b02b2c663c/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:51:59,015 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting free_16Err0ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-21 19:51:59,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:51:59,016 INFO L82 PathProgramCache]: Analyzing trace with hash -1103285257, now seen corresponding path program 1 times [2021-10-21 19:51:59,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:51:59,017 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1936704978] [2021-10-21 19:51:59,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:51:59,017 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:51:59,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8298a1-0ae0-4080-bf02-b8b02b2c663c/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:51:59,018 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8298a1-0ae0-4080-bf02-b8b02b2c663c/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:51:59,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8298a1-0ae0-4080-bf02-b8b02b2c663c/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-21 19:51:59,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:51:59,193 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-21 19:51:59,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:51:59,358 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 19:51:59,358 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:51:59,518 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 19:51:59,518 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:51:59,519 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1936704978] [2021-10-21 19:51:59,519 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1936704978] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:51:59,519 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:51:59,519 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2021-10-21 19:51:59,520 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528457259] [2021-10-21 19:51:59,521 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-21 19:51:59,522 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:51:59,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-21 19:51:59,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-10-21 19:51:59,524 INFO L87 Difference]: Start difference. First operand 43 states and 45 transitions. Second operand has 9 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-21 19:51:59,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:51:59,586 INFO L93 Difference]: Finished difference Result 42 states and 44 transitions. [2021-10-21 19:51:59,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-21 19:51:59,587 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 23 [2021-10-21 19:51:59,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:51:59,588 INFO L225 Difference]: With dead ends: 42 [2021-10-21 19:51:59,588 INFO L226 Difference]: Without dead ends: 42 [2021-10-21 19:51:59,589 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 72.2ms TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-10-21 19:51:59,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-10-21 19:51:59,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2021-10-21 19:51:59,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 28 states have internal predecessors, (28), 7 states have call successors, (7), 6 states have call predecessors, (7), 8 states have return successors, (9), 7 states have call predecessors, (9), 6 states have call successors, (9) [2021-10-21 19:51:59,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 44 transitions. [2021-10-21 19:51:59,595 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 44 transitions. Word has length 23 [2021-10-21 19:51:59,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:51:59,596 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 44 transitions. [2021-10-21 19:51:59,596 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-21 19:51:59,596 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 44 transitions. [2021-10-21 19:51:59,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-21 19:51:59,597 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:51:59,597 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:51:59,621 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8298a1-0ae0-4080-bf02-b8b02b2c663c/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-21 19:51:59,811 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8298a1-0ae0-4080-bf02-b8b02b2c663c/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:51:59,811 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting free_16Err1ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-21 19:51:59,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:51:59,813 INFO L82 PathProgramCache]: Analyzing trace with hash 157895800, now seen corresponding path program 1 times [2021-10-21 19:51:59,814 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:51:59,814 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [78032493] [2021-10-21 19:51:59,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:51:59,815 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:51:59,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8298a1-0ae0-4080-bf02-b8b02b2c663c/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:51:59,817 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8298a1-0ae0-4080-bf02-b8b02b2c663c/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:51:59,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8298a1-0ae0-4080-bf02-b8b02b2c663c/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-21 19:52:00,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:52:00,018 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-21 19:52:00,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:52:00,358 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 19:52:00,358 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:52:00,749 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 19:52:00,749 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:52:00,749 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [78032493] [2021-10-21 19:52:00,750 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [78032493] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:52:00,750 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:52:00,750 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 8] imperfect sequences [] total 16 [2021-10-21 19:52:00,750 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118049933] [2021-10-21 19:52:00,751 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-21 19:52:00,751 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:52:00,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-21 19:52:00,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2021-10-21 19:52:00,752 INFO L87 Difference]: Start difference. First operand 42 states and 44 transitions. Second operand has 17 states, 14 states have (on average 2.142857142857143) internal successors, (30), 11 states have internal predecessors, (30), 4 states have call successors, (11), 4 states have call predecessors, (11), 6 states have return successors, (6), 6 states have call predecessors, (6), 2 states have call successors, (6) [2021-10-21 19:52:01,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:52:01,150 INFO L93 Difference]: Finished difference Result 53 states and 54 transitions. [2021-10-21 19:52:01,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-21 19:52:01,152 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 14 states have (on average 2.142857142857143) internal successors, (30), 11 states have internal predecessors, (30), 4 states have call successors, (11), 4 states have call predecessors, (11), 6 states have return successors, (6), 6 states have call predecessors, (6), 2 states have call successors, (6) Word has length 24 [2021-10-21 19:52:01,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:52:01,153 INFO L225 Difference]: With dead ends: 53 [2021-10-21 19:52:01,153 INFO L226 Difference]: Without dead ends: 51 [2021-10-21 19:52:01,154 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 411.9ms TimeCoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2021-10-21 19:52:01,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-10-21 19:52:01,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 46. [2021-10-21 19:52:01,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 29 states have (on average 1.1379310344827587) internal successors, (33), 31 states have internal predecessors, (33), 7 states have call successors, (7), 7 states have call predecessors, (7), 8 states have return successors, (8), 7 states have call predecessors, (8), 6 states have call successors, (8) [2021-10-21 19:52:01,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 48 transitions. [2021-10-21 19:52:01,160 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 48 transitions. Word has length 24 [2021-10-21 19:52:01,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:52:01,161 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 48 transitions. [2021-10-21 19:52:01,161 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 14 states have (on average 2.142857142857143) internal successors, (30), 11 states have internal predecessors, (30), 4 states have call successors, (11), 4 states have call predecessors, (11), 6 states have return successors, (6), 6 states have call predecessors, (6), 2 states have call successors, (6) [2021-10-21 19:52:01,161 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 48 transitions. [2021-10-21 19:52:01,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-21 19:52:01,163 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:52:01,164 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:52:01,180 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8298a1-0ae0-4080-bf02-b8b02b2c663c/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-21 19:52:01,376 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8298a1-0ae0-4080-bf02-b8b02b2c663c/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:52:01,376 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting free_16Err2ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-21 19:52:01,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:52:01,377 INFO L82 PathProgramCache]: Analyzing trace with hash 599802905, now seen corresponding path program 1 times [2021-10-21 19:52:01,377 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:52:01,377 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2143950198] [2021-10-21 19:52:01,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:52:01,377 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:52:01,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8298a1-0ae0-4080-bf02-b8b02b2c663c/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:52:01,378 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8298a1-0ae0-4080-bf02-b8b02b2c663c/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:52:01,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8298a1-0ae0-4080-bf02-b8b02b2c663c/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-21 19:52:01,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:52:01,587 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-21 19:52:01,588 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:52:01,656 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 19:52:01,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:52:01,775 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:52:01,966 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 19:52:01,966 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:52:01,966 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2143950198] [2021-10-21 19:52:01,967 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2143950198] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:52:01,967 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:52:01,967 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2021-10-21 19:52:01,967 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301104285] [2021-10-21 19:52:01,968 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-21 19:52:01,968 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:52:01,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-21 19:52:01,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-10-21 19:52:01,969 INFO L87 Difference]: Start difference. First operand 46 states and 48 transitions. Second operand has 9 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-21 19:52:02,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:52:02,102 INFO L93 Difference]: Finished difference Result 50 states and 51 transitions. [2021-10-21 19:52:02,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-21 19:52:02,103 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 25 [2021-10-21 19:52:02,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:52:02,104 INFO L225 Difference]: With dead ends: 50 [2021-10-21 19:52:02,104 INFO L226 Difference]: Without dead ends: 50 [2021-10-21 19:52:02,105 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 35 SyntacticMatches, 7 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 107.6ms TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-10-21 19:52:02,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-10-21 19:52:02,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 46. [2021-10-21 19:52:02,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 29 states have (on average 1.103448275862069) internal successors, (32), 31 states have internal predecessors, (32), 7 states have call successors, (7), 7 states have call predecessors, (7), 8 states have return successors, (8), 7 states have call predecessors, (8), 6 states have call successors, (8) [2021-10-21 19:52:02,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 47 transitions. [2021-10-21 19:52:02,110 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 47 transitions. Word has length 25 [2021-10-21 19:52:02,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:52:02,111 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 47 transitions. [2021-10-21 19:52:02,111 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-21 19:52:02,111 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 47 transitions. [2021-10-21 19:52:02,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-21 19:52:02,112 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:52:02,112 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:52:02,133 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8298a1-0ae0-4080-bf02-b8b02b2c663c/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-21 19:52:02,330 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8298a1-0ae0-4080-bf02-b8b02b2c663c/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:52:02,330 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting free_16Err2ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-21 19:52:02,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:52:02,330 INFO L82 PathProgramCache]: Analyzing trace with hash 306399898, now seen corresponding path program 1 times [2021-10-21 19:52:02,331 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:52:02,331 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1058374755] [2021-10-21 19:52:02,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:52:02,331 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:52:02,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8298a1-0ae0-4080-bf02-b8b02b2c663c/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:52:02,332 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8298a1-0ae0-4080-bf02-b8b02b2c663c/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:52:02,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8298a1-0ae0-4080-bf02-b8b02b2c663c/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-21 19:52:02,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:52:02,514 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-21 19:52:02,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:52:02,644 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 19:52:02,645 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:52:02,768 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 19:52:02,768 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:52:02,768 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1058374755] [2021-10-21 19:52:02,768 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1058374755] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:52:02,768 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:52:02,768 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2021-10-21 19:52:02,769 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608696563] [2021-10-21 19:52:02,769 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-21 19:52:02,769 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:52:02,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-21 19:52:02,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-10-21 19:52:02,770 INFO L87 Difference]: Start difference. First operand 46 states and 47 transitions. Second operand has 9 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-21 19:52:02,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:52:02,827 INFO L93 Difference]: Finished difference Result 47 states and 48 transitions. [2021-10-21 19:52:02,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-21 19:52:02,828 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 25 [2021-10-21 19:52:02,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:52:02,829 INFO L225 Difference]: With dead ends: 47 [2021-10-21 19:52:02,829 INFO L226 Difference]: Without dead ends: 47 [2021-10-21 19:52:02,829 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 53.4ms TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-10-21 19:52:02,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-10-21 19:52:02,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 45. [2021-10-21 19:52:02,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 29 states have (on average 1.0689655172413792) internal successors, (31), 30 states have internal predecessors, (31), 7 states have call successors, (7), 7 states have call predecessors, (7), 8 states have return successors, (8), 7 states have call predecessors, (8), 6 states have call successors, (8) [2021-10-21 19:52:02,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 46 transitions. [2021-10-21 19:52:02,834 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 46 transitions. Word has length 25 [2021-10-21 19:52:02,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:52:02,835 INFO L470 AbstractCegarLoop]: Abstraction has 45 states and 46 transitions. [2021-10-21 19:52:02,835 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-21 19:52:02,835 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 46 transitions. [2021-10-21 19:52:02,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-21 19:52:02,836 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:52:02,836 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:52:02,854 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8298a1-0ae0-4080-bf02-b8b02b2c663c/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-21 19:52:03,047 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8298a1-0ae0-4080-bf02-b8b02b2c663c/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:52:03,048 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 19:52:03,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:52:03,048 INFO L82 PathProgramCache]: Analyzing trace with hash 1123950726, now seen corresponding path program 1 times [2021-10-21 19:52:03,048 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:52:03,049 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1194782665] [2021-10-21 19:52:03,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:52:03,049 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:52:03,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8298a1-0ae0-4080-bf02-b8b02b2c663c/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:52:03,050 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8298a1-0ae0-4080-bf02-b8b02b2c663c/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:52:03,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8298a1-0ae0-4080-bf02-b8b02b2c663c/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-21 19:52:03,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:52:03,255 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-21 19:52:03,257 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:52:03,378 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 19:52:03,378 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:52:03,594 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 19:52:03,595 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:52:03,595 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1194782665] [2021-10-21 19:52:03,595 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1194782665] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:52:03,595 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:52:03,595 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 9 [2021-10-21 19:52:03,595 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250288043] [2021-10-21 19:52:03,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-21 19:52:03,596 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:52:03,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-21 19:52:03,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-10-21 19:52:03,597 INFO L87 Difference]: Start difference. First operand 45 states and 46 transitions. Second operand has 9 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 9 states have internal predecessors, (20), 3 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2021-10-21 19:52:03,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:52:03,663 INFO L93 Difference]: Finished difference Result 47 states and 47 transitions. [2021-10-21 19:52:03,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-21 19:52:03,664 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 9 states have internal predecessors, (20), 3 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) Word has length 27 [2021-10-21 19:52:03,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:52:03,665 INFO L225 Difference]: With dead ends: 47 [2021-10-21 19:52:03,665 INFO L226 Difference]: Without dead ends: 45 [2021-10-21 19:52:03,665 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 79.6ms TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-10-21 19:52:03,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-10-21 19:52:03,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 31. [2021-10-21 19:52:03,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 19 states have (on average 1.0526315789473684) internal successors, (20), 19 states have internal predecessors, (20), 6 states have call successors, (6), 6 states have call predecessors, (6), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-10-21 19:52:03,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 31 transitions. [2021-10-21 19:52:03,669 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 31 transitions. Word has length 27 [2021-10-21 19:52:03,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:52:03,669 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 31 transitions. [2021-10-21 19:52:03,669 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 9 states have internal predecessors, (20), 3 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2021-10-21 19:52:03,669 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2021-10-21 19:52:03,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-21 19:52:03,670 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:52:03,670 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:52:03,685 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8298a1-0ae0-4080-bf02-b8b02b2c663c/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-21 19:52:03,871 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8298a1-0ae0-4080-bf02-b8b02b2c663c/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:52:03,871 INFO L402 AbstractCegarLoop]: === Iteration 8 === 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 19:52:03,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:52:03,872 INFO L82 PathProgramCache]: Analyzing trace with hash 2141245867, now seen corresponding path program 1 times [2021-10-21 19:52:03,872 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:52:03,872 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1779878936] [2021-10-21 19:52:03,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:52:03,872 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:52:03,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8298a1-0ae0-4080-bf02-b8b02b2c663c/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:52:03,873 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8298a1-0ae0-4080-bf02-b8b02b2c663c/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:52:03,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8298a1-0ae0-4080-bf02-b8b02b2c663c/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-21 19:52:04,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:52:04,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-21 19:52:04,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:52:04,154 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-10-21 19:52:04,154 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2021-10-21 19:52:08,790 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 19:52:08,790 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:52:13,158 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_11| (Array (_ BitVec 32) (_ BitVec 1)))) (or (= |v_old(#valid)_BEFORE_CALL_11| |c_#valid|) (exists ((v_entry_point_~p~1.base_20 (_ BitVec 32))) (and (not (= |v_old(#valid)_BEFORE_CALL_11| (store |c_old(#valid)| v_entry_point_~p~1.base_20 (_ bv0 1)))) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_old(#valid)| v_entry_point_~p~1.base_20)))))))))))))))) is different from false [2021-10-21 19:52:14,447 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:52:14,447 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1779878936] [2021-10-21 19:52:14,447 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(= (store |v_old(#valid)_BEFORE_CALL_12| v_entry_point_~p~1.base_20 (_ bv0 1)) v_prenex_1)=(= (select v_prenex_1 v_antiDerIndex_entry0_1) (select (store |v_old(#valid)_BEFORE_CALL_12| v_entry_point_~p~1.base_20 (_ bv0 1)) v_antiDerIndex_entry0_1))} [2021-10-21 19:52:14,448 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1777879545] [2021-10-21 19:52:14,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:52:14,448 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-21 19:52:14,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8298a1-0ae0-4080-bf02-b8b02b2c663c/bin/uautomizer-j4sWxH34Be/cvc4 [2021-10-21 19:52:14,454 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8298a1-0ae0-4080-bf02-b8b02b2c663c/bin/uautomizer-j4sWxH34Be/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-21 19:52:14,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8298a1-0ae0-4080-bf02-b8b02b2c663c/bin/uautomizer-j4sWxH34Be/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2021-10-21 19:52:14,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:52:14,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 23 conjunts are in the unsatisfiable core [2021-10-21 19:52:14,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:52:14,903 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-10-21 19:52:14,903 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 27 [2021-10-21 19:52:15,282 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 19:52:15,283 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:52:27,750 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_17| (Array (_ BitVec 32) (_ BitVec 1)))) (or (= |v_old(#valid)_BEFORE_CALL_17| (store |c_#valid| c_entry_point_~p~1.base (_ bv0 1))) (exists ((v_entry_point_~p~1.base_20 (_ BitVec 32))) (and (not (= |v_old(#valid)_BEFORE_CALL_17| (store |c_old(#valid)| v_entry_point_~p~1.base_20 (_ bv0 1)))) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_old(#valid)| v_entry_point_~p~1.base_20)))))))))))))))) is different from false [2021-10-21 19:52:27,899 INFO L354 Elim1Store]: treesize reduction 16, result has 78.1 percent of original size [2021-10-21 19:52:27,899 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 77 treesize of output 124 [2021-10-21 19:52:28,392 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-21 19:52:28,392 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 38 [2021-10-21 19:52:28,804 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_entry_point_#t~ret40.base_53| (_ BitVec 32)) (|v_old(#valid)_BEFORE_CALL_17| (Array (_ BitVec 32) (_ BitVec 1)))) (or (= |v_old(#valid)_BEFORE_CALL_17| (store |c_#valid| |v_entry_point_#t~ret40.base_53| (_ bv0 1))) (not (= (_ bv0 1) (bvneg (bvneg (select |c_#valid| |v_entry_point_#t~ret40.base_53|))))) (exists ((v_entry_point_~p~1.base_20 (_ BitVec 32))) (and (not (= |v_old(#valid)_BEFORE_CALL_17| (store |c_old(#valid)| v_entry_point_~p~1.base_20 (_ bv0 1)))) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_old(#valid)| v_entry_point_~p~1.base_20)))))))))))))))) is different from false [2021-10-21 19:52:29,025 INFO L354 Elim1Store]: treesize reduction 16, result has 78.1 percent of original size [2021-10-21 19:52:29,026 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 84 treesize of output 131 [2021-10-21 19:52:29,846 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-21 19:52:29,847 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 44 [2021-10-21 19:52:30,099 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-10-21 19:52:30,721 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-21 19:52:30,721 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 67 treesize of output 107 [2021-10-21 19:52:33,597 WARN L860 $PredicateComparison]: unable to prove that (or (forall ((v_antiDerIndex_entry0_7 (_ BitVec 32)) (v_arrayElimCell_14 (_ BitVec 1))) (let ((.cse0 (bvneg v_arrayElimCell_14))) (or (= (_ bv0 1) (bvadd (select (store |c_#valid| |c_alloc_16_#res.base| (_ bv0 1)) v_antiDerIndex_entry0_7) .cse0)) (not (= (_ bv0 1) .cse0))))) (exists ((|v_entry_point_#t~ret40.base_53| (_ BitVec 32))) (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_old(#valid)| |v_entry_point_#t~ret40.base_53|))))))) is different from true [2021-10-21 19:52:35,636 WARN L860 $PredicateComparison]: unable to prove that (or (forall ((v_antiDerIndex_entry0_7 (_ BitVec 32)) (v_arrayElimCell_14 (_ BitVec 1))) (let ((.cse0 (bvneg v_arrayElimCell_14))) (or (= (_ bv0 1) (bvadd (select (store |c_#valid| |c_alloc_16_#t~ret38.base| (_ bv0 1)) v_antiDerIndex_entry0_7) .cse0)) (not (= (_ bv0 1) .cse0))))) (exists ((|v_entry_point_#t~ret40.base_53| (_ BitVec 32))) (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_old(#valid)| |v_entry_point_#t~ret40.base_53|))))))) is different from true [2021-10-21 19:52:37,709 WARN L860 $PredicateComparison]: unable to prove that (or (forall ((v_antiDerIndex_entry0_7 (_ BitVec 32)) (v_arrayElimCell_14 (_ BitVec 1)) (|v_alloc_16_#t~ret38.base_72| (_ BitVec 32))) (let ((.cse0 (bvneg v_arrayElimCell_14))) (or (not (= (_ bv0 1) (bvneg (bvneg (select |c_#valid| |v_alloc_16_#t~ret38.base_72|))))) (= (_ bv0 1) (bvadd (select (store |c_#valid| |v_alloc_16_#t~ret38.base_72| (_ bv0 1)) v_antiDerIndex_entry0_7) .cse0)) (not (= (_ bv0 1) .cse0))))) (exists ((|v_entry_point_#t~ret40.base_53| (_ BitVec 32))) (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_old(#valid)| |v_entry_point_#t~ret40.base_53|))))))) is different from true [2021-10-21 19:52:39,780 WARN L860 $PredicateComparison]: unable to prove that (or (exists ((v_antiDerIndex_entry0_7 (_ BitVec 32)) (v_arrayElimCell_14 (_ BitVec 1)) (|v_alloc_16_#t~ret38.base_72| (_ BitVec 32))) (let ((.cse0 (bvneg v_arrayElimCell_14))) (and (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_old(#valid)| |v_alloc_16_#t~ret38.base_72|))))) (not (= (_ bv0 1) (bvadd (bvneg (select (store |c_old(#valid)| |v_alloc_16_#t~ret38.base_72| (_ bv0 1)) v_antiDerIndex_entry0_7)) (bvneg .cse0)))) (= (_ bv0 1) .cse0)))) (forall ((|v_old(#valid)_BEFORE_CALL_20| (Array (_ BitVec 32) (_ BitVec 1)))) (exists ((|v_entry_point_#t~ret40.base_53| (_ BitVec 32))) (= (_ bv0 1) (bvneg (bvneg (bvneg (select |v_old(#valid)_BEFORE_CALL_20| |v_entry_point_#t~ret40.base_53|))))))) (forall ((v_antiDerIndex_entry0_7 (_ BitVec 32)) (v_arrayElimCell_14 (_ BitVec 1))) (let ((.cse1 (bvneg v_arrayElimCell_14))) (or (= (_ bv0 1) (bvadd (bvneg .cse1) (bvneg (select (store |c_#valid| |c_ldv_malloc_#res.base| (_ bv0 1)) v_antiDerIndex_entry0_7)))) (not (= (_ bv0 1) .cse1)))))) is different from true [2021-10-21 19:52:41,934 WARN L860 $PredicateComparison]: unable to prove that (or (forall ((|v_ldv_malloc_#res.base_58| (_ BitVec 32)) (v_antiDerIndex_entry0_7 (_ BitVec 32)) (v_arrayElimCell_14 (_ BitVec 1))) (let ((.cse0 (bvneg v_arrayElimCell_14))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (select (store |c_#valid| |v_ldv_malloc_#res.base_58| (_ bv0 1)) v_antiDerIndex_entry0_7))))) (bvneg (bvneg (bvneg (bvneg .cse0)))))) (not (= (_ bv0 1) .cse0)) (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_ldv_malloc_#res.base_58|))))))) (exists ((v_antiDerIndex_entry0_7 (_ BitVec 32)) (v_arrayElimCell_14 (_ BitVec 1)) (|v_alloc_16_#t~ret38.base_72| (_ BitVec 32))) (let ((.cse1 (bvneg v_arrayElimCell_14))) (and (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_old(#valid)| |v_alloc_16_#t~ret38.base_72|))))) (not (= (_ bv0 1) (bvadd (bvneg (select (store |c_old(#valid)| |v_alloc_16_#t~ret38.base_72| (_ bv0 1)) v_antiDerIndex_entry0_7)) (bvneg .cse1)))) (= (_ bv0 1) .cse1)))) (forall ((|v_old(#valid)_BEFORE_CALL_20| (Array (_ BitVec 32) (_ BitVec 1)))) (exists ((|v_entry_point_#t~ret40.base_53| (_ BitVec 32))) (= (_ bv0 1) (bvneg (bvneg (bvneg (select |v_old(#valid)_BEFORE_CALL_20| |v_entry_point_#t~ret40.base_53|)))))))) is different from true [2021-10-21 19:52:42,208 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 19:52:42,209 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1777879545] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:52:42,209 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:52:42,209 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13, 12] imperfect sequences [] total 23 [2021-10-21 19:52:42,209 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119920952] [2021-10-21 19:52:42,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-10-21 19:52:42,210 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:52:42,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-10-21 19:52:42,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=229, Unknown=38, NotChecked=312, Total=650 [2021-10-21 19:52:42,211 INFO L87 Difference]: Start difference. First operand 31 states and 31 transitions. Second operand has 24 states, 19 states have (on average 2.0) internal successors, (38), 17 states have internal predecessors, (38), 9 states have call successors, (11), 7 states have call predecessors, (11), 9 states have return successors, (10), 10 states have call predecessors, (10), 8 states have call successors, (10) [2021-10-21 19:53:45,217 WARN L207 SmtUtils]: Spent 28.07 s on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2021-10-21 19:54:00,447 WARN L207 SmtUtils]: Spent 9.41 s on a formula simplification. DAG size of input: 51 DAG size of output: 14 [2021-10-21 19:54:39,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:54:39,462 INFO L93 Difference]: Finished difference Result 41 states and 41 transitions. [2021-10-21 19:54:39,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-21 19:54:39,463 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 19 states have (on average 2.0) internal successors, (38), 17 states have internal predecessors, (38), 9 states have call successors, (11), 7 states have call predecessors, (11), 9 states have return successors, (10), 10 states have call predecessors, (10), 8 states have call successors, (10) Word has length 30 [2021-10-21 19:54:39,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:54:39,464 INFO L225 Difference]: With dead ends: 41 [2021-10-21 19:54:39,464 INFO L226 Difference]: Without dead ends: 31 [2021-10-21 19:54:39,465 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 69 SyntacticMatches, 7 SemanticMatches, 28 ConstructedPredicates, 8 IntricatePredicates, 1 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 92342.1ms TimeCoverageRelationStatistics Valid=98, Invalid=335, Unknown=61, NotChecked=376, Total=870 [2021-10-21 19:54:39,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-10-21 19:54:39,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2021-10-21 19:54:39,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 19 states have (on average 1.0) internal successors, (19), 19 states have internal predecessors, (19), 6 states have call successors, (6), 6 states have call predecessors, (6), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-10-21 19:54:39,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 30 transitions. [2021-10-21 19:54:39,469 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 30 transitions. Word has length 30 [2021-10-21 19:54:39,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:54:39,470 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 30 transitions. [2021-10-21 19:54:39,470 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 19 states have (on average 2.0) internal successors, (38), 17 states have internal predecessors, (38), 9 states have call successors, (11), 7 states have call predecessors, (11), 9 states have return successors, (10), 10 states have call predecessors, (10), 8 states have call successors, (10) [2021-10-21 19:54:39,470 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 30 transitions. [2021-10-21 19:54:39,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-21 19:54:39,472 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:54:39,472 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:54:39,495 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8298a1-0ae0-4080-bf02-b8b02b2c663c/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-21 19:54:39,676 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8298a1-0ae0-4080-bf02-b8b02b2c663c/bin/uautomizer-j4sWxH34Be/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2021-10-21 19:54:39,873 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8298a1-0ae0-4080-bf02-b8b02b2c663c/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8298a1-0ae0-4080-bf02-b8b02b2c663c/bin/uautomizer-j4sWxH34Be/cvc4 --incremental --print-success --lang smt [2021-10-21 19:54:39,874 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-21 19:54:39,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:54:39,874 INFO L82 PathProgramCache]: Analyzing trace with hash 1144173514, now seen corresponding path program 1 times [2021-10-21 19:54:39,875 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:54:39,875 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1628785694] [2021-10-21 19:54:39,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:54:39,875 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:54:39,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8298a1-0ae0-4080-bf02-b8b02b2c663c/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:54:39,876 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8298a1-0ae0-4080-bf02-b8b02b2c663c/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:54:39,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8298a1-0ae0-4080-bf02-b8b02b2c663c/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-21 19:54:40,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:54:40,206 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-21 19:54:40,208 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:54:40,229 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-10-21 19:54:40,230 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 15 [2021-10-21 19:54:40,725 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 19:54:40,725 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:54:41,119 INFO L354 Elim1Store]: treesize reduction 10, result has 73.0 percent of original size [2021-10-21 19:54:41,120 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 32 treesize of output 46 [2021-10-21 19:54:42,835 INFO L354 Elim1Store]: treesize reduction 11, result has 60.7 percent of original size [2021-10-21 19:54:42,835 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 43 [2021-10-21 19:54:43,768 INFO L354 Elim1Store]: treesize reduction 11, result has 60.7 percent of original size [2021-10-21 19:54:43,768 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 81 treesize of output 86 [2021-10-21 19:54:45,177 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 19:54:45,178 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:54:45,178 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1628785694] [2021-10-21 19:54:45,178 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1628785694] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:54:45,178 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:54:45,178 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 14] imperfect sequences [] total 23 [2021-10-21 19:54:45,179 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957242387] [2021-10-21 19:54:45,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-10-21 19:54:45,179 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:54:45,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-10-21 19:54:45,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=466, Unknown=0, NotChecked=0, Total=552 [2021-10-21 19:54:45,181 INFO L87 Difference]: Start difference. First operand 31 states and 30 transitions. Second operand has 24 states, 20 states have (on average 1.85) internal successors, (37), 16 states have internal predecessors, (37), 9 states have call successors, (11), 6 states have call predecessors, (11), 9 states have return successors, (10), 9 states have call predecessors, (10), 7 states have call successors, (10) [2021-10-21 19:54:45,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:54:45,943 INFO L93 Difference]: Finished difference Result 30 states and 29 transitions. [2021-10-21 19:54:45,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-21 19:54:45,944 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 20 states have (on average 1.85) internal successors, (37), 16 states have internal predecessors, (37), 9 states have call successors, (11), 6 states have call predecessors, (11), 9 states have return successors, (10), 9 states have call predecessors, (10), 7 states have call successors, (10) Word has length 30 [2021-10-21 19:54:45,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:54:45,945 INFO L225 Difference]: With dead ends: 30 [2021-10-21 19:54:45,945 INFO L226 Difference]: Without dead ends: 0 [2021-10-21 19:54:45,946 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 34 SyntacticMatches, 3 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 1237.1ms TimeCoverageRelationStatistics Valid=173, Invalid=757, Unknown=0, NotChecked=0, Total=930 [2021-10-21 19:54:45,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-21 19:54:45,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-21 19:54:45,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:54:45,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-21 19:54:45,946 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 30 [2021-10-21 19:54:45,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:54:45,947 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:54:45,947 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 20 states have (on average 1.85) internal successors, (37), 16 states have internal predecessors, (37), 9 states have call successors, (11), 6 states have call predecessors, (11), 9 states have return successors, (10), 9 states have call predecessors, (10), 7 states have call successors, (10) [2021-10-21 19:54:45,947 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-21 19:54:45,947 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-21 19:54:45,955 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_msg_allocErr0REQUIRES_VIOLATION [2021-10-21 19:54:45,955 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_msg_allocErr1REQUIRES_VIOLATION [2021-10-21 19:54:45,956 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_kref_initErr0REQUIRES_VIOLATION [2021-10-21 19:54:45,956 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_kref_initErr1REQUIRES_VIOLATION [2021-10-21 19:54:45,956 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION [2021-10-21 19:54:45,956 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION [2021-10-21 19:54:45,956 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION [2021-10-21 19:54:45,957 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION [2021-10-21 19:54:45,957 INFO L764 garLoopResultBuilder]: Registering result SAFE for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION [2021-10-21 19:54:45,957 INFO L764 garLoopResultBuilder]: Registering result SAFE for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION [2021-10-21 19:54:45,957 INFO L764 garLoopResultBuilder]: Registering result SAFE for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION [2021-10-21 19:54:45,958 INFO L764 garLoopResultBuilder]: Registering result SAFE for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION [2021-10-21 19:54:45,958 INFO L764 garLoopResultBuilder]: Registering result SAFE for location __ldv_list_addErr0REQUIRES_VIOLATION [2021-10-21 19:54:45,958 INFO L764 garLoopResultBuilder]: Registering result SAFE for location __ldv_list_addErr1REQUIRES_VIOLATION [2021-10-21 19:54:45,958 INFO L764 garLoopResultBuilder]: Registering result SAFE for location __ldv_list_addErr2REQUIRES_VIOLATION [2021-10-21 19:54:45,959 INFO L764 garLoopResultBuilder]: Registering result SAFE for location __ldv_list_addErr3REQUIRES_VIOLATION [2021-10-21 19:54:45,959 INFO L764 garLoopResultBuilder]: Registering result SAFE for location __ldv_list_addErr4REQUIRES_VIOLATION [2021-10-21 19:54:45,959 INFO L764 garLoopResultBuilder]: Registering result SAFE for location __ldv_list_addErr5REQUIRES_VIOLATION [2021-10-21 19:54:45,959 INFO L764 garLoopResultBuilder]: Registering result SAFE for location __ldv_list_addErr6REQUIRES_VIOLATION [2021-10-21 19:54:45,959 INFO L764 garLoopResultBuilder]: Registering result SAFE for location __ldv_list_addErr7REQUIRES_VIOLATION [2021-10-21 19:54:45,960 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION [2021-10-21 19:54:45,960 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION [2021-10-21 19:54:45,960 INFO L764 garLoopResultBuilder]: Registering result SAFE for location __ldv_list_delErr0REQUIRES_VIOLATION [2021-10-21 19:54:45,961 INFO L764 garLoopResultBuilder]: Registering result SAFE for location __ldv_list_delErr1REQUIRES_VIOLATION [2021-10-21 19:54:45,961 INFO L764 garLoopResultBuilder]: Registering result SAFE for location __ldv_list_delErr2REQUIRES_VIOLATION [2021-10-21 19:54:45,961 INFO L764 garLoopResultBuilder]: Registering result SAFE for location __ldv_list_delErr3REQUIRES_VIOLATION [2021-10-21 19:54:45,962 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION [2021-10-21 19:54:45,962 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION [2021-10-21 19:54:45,962 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION [2021-10-21 19:54:45,962 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION [2021-10-21 19:54:45,963 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_list_addErr0REQUIRES_VIOLATION [2021-10-21 19:54:45,963 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_list_addErr1REQUIRES_VIOLATION [2021-10-21 19:54:45,963 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_destroy_msgsErr0REQUIRES_VIOLATION [2021-10-21 19:54:45,963 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_destroy_msgsErr1REQUIRES_VIOLATION [2021-10-21 19:54:45,963 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_destroy_msgsErr2REQUIRES_VIOLATION [2021-10-21 19:54:45,964 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_destroy_msgsErr3REQUIRES_VIOLATION [2021-10-21 19:54:45,964 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_destroy_msgsErr4REQUIRES_VIOLATION [2021-10-21 19:54:45,964 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_destroy_msgsErr5REQUIRES_VIOLATION [2021-10-21 19:54:45,964 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION [2021-10-21 19:54:45,965 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION [2021-10-21 19:54:45,965 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_msg_freeErr0REQUIRES_VIOLATION [2021-10-21 19:54:45,966 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_msg_freeErr1REQUIRES_VIOLATION [2021-10-21 19:54:45,966 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:54:45,966 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:54:45,967 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:54:45,967 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:54:45,967 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:54:45,967 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:54:45,968 INFO L764 garLoopResultBuilder]: Registering result SAFE for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-10-21 19:54:45,968 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_msg_fillErr0REQUIRES_VIOLATION [2021-10-21 19:54:45,968 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_msg_fillErr1REQUIRES_VIOLATION [2021-10-21 19:54:45,968 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_msg_fillErr2REQUIRES_VIOLATION [2021-10-21 19:54:45,968 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_msg_fillErr3REQUIRES_VIOLATION [2021-10-21 19:54:45,969 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_msg_fillErr4REQUIRES_VIOLATION [2021-10-21 19:54:45,969 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_msg_fillErr5REQUIRES_VIOLATION [2021-10-21 19:54:45,969 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION [2021-10-21 19:54:45,969 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION [2021-10-21 19:54:45,970 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:54:45,970 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:54:45,970 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:54:45,970 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:54:45,971 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:54:45,971 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:54:45,971 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_kobject_createErr0REQUIRES_VIOLATION [2021-10-21 19:54:45,971 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_kobject_createErr1REQUIRES_VIOLATION [2021-10-21 19:54:45,972 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_list_delErr0REQUIRES_VIOLATION [2021-10-21 19:54:45,972 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_list_delErr1REQUIRES_VIOLATION [2021-10-21 19:54:45,972 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_list_delErr2REQUIRES_VIOLATION [2021-10-21 19:54:45,972 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_list_delErr3REQUIRES_VIOLATION [2021-10-21 19:54:45,972 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_list_add_tailErr0REQUIRES_VIOLATION [2021-10-21 19:54:45,973 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_list_add_tailErr1REQUIRES_VIOLATION [2021-10-21 19:54:45,973 INFO L764 garLoopResultBuilder]: Registering result SAFE for location free_16Err0ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:54:45,973 INFO L764 garLoopResultBuilder]: Registering result SAFE for location free_16Err1ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:54:45,973 INFO L764 garLoopResultBuilder]: Registering result SAFE for location free_16Err2ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:54:45,988 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8298a1-0ae0-4080-bf02-b8b02b2c663c/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (11)] Ended with exit code 0 [2021-10-21 19:54:46,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8298a1-0ae0-4080-bf02-b8b02b2c663c/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:54:46,195 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-21 19:54:46,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 07:54:46 BoogieIcfgContainer [2021-10-21 19:54:46,197 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-21 19:54:46,198 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:54:46,198 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:54:46,198 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:54:46,199 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:51:57" (3/4) ... [2021-10-21 19:54:46,202 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-21 19:54:46,212 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_submit_msg [2021-10-21 19:54:46,212 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.setCurrentRoundingMode [2021-10-21 19:54:46,212 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_positive [2021-10-21 19:54:46,212 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint64_identity [2021-10-21 19:54:46,213 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_msg_free [2021-10-21 19:54:46,213 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2021-10-21 19:54:46,213 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ##fun~$Pointer$~TO~VOID [2021-10-21 19:54:46,213 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_nonpositive [2021-10-21 19:54:46,213 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.meminit [2021-10-21 19:54:46,213 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_msg_alloc [2021-10-21 19:54:46,214 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_kobject_init_internal [2021-10-21 19:54:46,214 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_kref_init [2021-10-21 19:54:46,214 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_msg_fill [2021-10-21 19:54:46,214 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_kref_sub [2021-10-21 19:54:46,214 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_atomic_add_return [2021-10-21 19:54:46,214 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_32 [2021-10-21 19:54:46,215 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_kobject_cleanup [2021-10-21 19:54:46,215 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memcpy [2021-10-21 19:54:46,215 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure LDV_INIT_LIST_HEAD [2021-10-21 19:54:46,215 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __ldv_list_add [2021-10-21 19:54:46,215 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2021-10-21 19:54:46,215 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_dev_set_drvdata [2021-10-21 19:54:46,215 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_kobject_create [2021-10-21 19:54:46,216 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_kobject_del [2021-10-21 19:54:46,216 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __ldv_list_del [2021-10-21 19:54:46,216 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_64 [2021-10-21 19:54:46,216 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_list_del [2021-10-21 19:54:46,216 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_kref_get [2021-10-21 19:54:46,216 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_kobject_put [2021-10-21 19:54:46,217 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint32_identity [2021-10-21 19:54:46,217 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_kobject_init [2021-10-21 19:54:46,217 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_atomic_sub_return [2021-10-21 19:54:46,217 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_list_add_tail [2021-10-21 19:54:46,217 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint16_identity [2021-10-21 19:54:46,217 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure free_16 [2021-10-21 19:54:46,218 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure entry_point [2021-10-21 19:54:46,218 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_list_add [2021-10-21 19:54:46,218 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_destroy_msgs [2021-10-21 19:54:46,218 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memset [2021-10-21 19:54:46,218 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure f [2021-10-21 19:54:46,218 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_kobject_release [2021-10-21 19:54:46,219 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure g [2021-10-21 19:54:46,219 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure alloc_16 [2021-10-21 19:54:46,219 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2021-10-21 19:54:46,219 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_zalloc [2021-10-21 19:54:46,219 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_kref_put [2021-10-21 19:54:46,219 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_kobject_get [2021-10-21 19:54:46,220 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_dev_get_drvdata [2021-10-21 19:54:46,231 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 39 nodes and edges [2021-10-21 19:54:46,231 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-10-21 19:54:46,232 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-21 19:54:46,232 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-21 19:54:46,233 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-21 19:54:46,280 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8298a1-0ae0-4080-bf02-b8b02b2c663c/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 19:54:46,281 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:54:46,282 INFO L168 Benchmark]: Toolchain (without parser) took 171778.64 ms. Allocated memory was 69.2 MB in the beginning and 104.9 MB in the end (delta: 35.7 MB). Free memory was 46.8 MB in the beginning and 27.3 MB in the end (delta: 19.5 MB). Peak memory consumption was 55.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:54:46,282 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 69.2 MB. Free memory is still 50.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:54:46,283 INFO L168 Benchmark]: CACSL2BoogieTranslator took 835.28 ms. Allocated memory is still 69.2 MB. Free memory was 46.7 MB in the beginning and 34.5 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-21 19:54:46,283 INFO L168 Benchmark]: Boogie Preprocessor took 134.77 ms. Allocated memory is still 69.2 MB. Free memory was 34.5 MB in the beginning and 29.8 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:54:46,284 INFO L168 Benchmark]: RCFGBuilder took 1567.36 ms. Allocated memory was 69.2 MB in the beginning and 86.0 MB in the end (delta: 16.8 MB). Free memory was 29.8 MB in the beginning and 48.7 MB in the end (delta: -18.9 MB). Peak memory consumption was 15.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:54:46,285 INFO L168 Benchmark]: TraceAbstraction took 169146.14 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 48.0 MB in the beginning and 32.4 MB in the end (delta: 15.6 MB). Peak memory consumption was 35.9 MB. Max. memory is 16.1 GB. [2021-10-21 19:54:46,285 INFO L168 Benchmark]: Witness Printer took 83.23 ms. Allocated memory is still 104.9 MB. Free memory was 32.4 MB in the beginning and 27.3 MB in the end (delta: 5.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:54:46,288 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 69.2 MB. Free memory is still 50.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 835.28 ms. Allocated memory is still 69.2 MB. Free memory was 46.7 MB in the beginning and 34.5 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 134.77 ms. Allocated memory is still 69.2 MB. Free memory was 34.5 MB in the beginning and 29.8 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1567.36 ms. Allocated memory was 69.2 MB in the beginning and 86.0 MB in the end (delta: 16.8 MB). Free memory was 29.8 MB in the beginning and 48.7 MB in the end (delta: -18.9 MB). Peak memory consumption was 15.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 169146.14 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 48.0 MB in the beginning and 32.4 MB in the end (delta: 15.6 MB). Peak memory consumption was 35.9 MB. Max. memory is 16.1 GB. * Witness Printer took 83.23 ms. Allocated memory is still 104.9 MB. Free memory was 32.4 MB in the beginning and 27.3 MB in the end (delta: 5.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 578]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 578]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 682]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 682]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 658]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 658]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 660]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 660]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 540]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 540]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 541]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 541]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 547]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 547]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 548]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 548]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 549]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 549]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 550]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 550]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 623]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 623]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 554]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 554]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 555]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 555]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 666]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 666]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 668]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 668]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 559]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 559]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 607]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 607]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 607]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 607]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 607]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 607]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 619]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 619]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 593]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 593]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 593]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 593]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 593]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 594]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 594]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 594]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 777]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 587]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 587]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 587]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 587]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 588]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 588]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 699]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 699]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 700]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 700]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 700]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 702]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 702]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 702]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 744]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 744]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 567]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 567]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 567]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 567]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 563]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 563]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 769]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 769]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 769]: free always succeeds For all program executions holds that free always succeeds at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 49 procedures, 347 locations, 74 error locations. Started 1 CEGAR loops. OverallTime: 169067.8ms, OverallIterations: 9, TraceHistogramMax: 1, EmptinessCheckTime: 31.3ms, AutomataDifference: 118970.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 15.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 262 SDtfs, 205 SDslu, 1290 SDs, 0 SdLazy, 828 SolverSat, 83 SolverUnsat, 26 SolverUnknown, 0 SolverNotchecked, 57457.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 497 GetRequests, 363 SyntacticMatches, 17 SemanticMatches, 117 ConstructedPredicates, 8 IntricatePredicates, 1 DeprecatedPredicates, 364 ImplicationChecksByTransitivity, 94371.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=107occurred in iteration=0, InterpolantAutomatonStates: 91, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 75.5ms AutomataMinimizationTime, 9 MinimizatonAttempts, 29 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 84.6ms SsaConstructionTime, 291.9ms SatisfiabilityAnalysisTime, 34981.1ms InterpolantComputationTime, 222 NumberOfCodeBlocks, 222 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 426 ConstructedInterpolants, 41 QuantifiedInterpolants, 3073 SizeOfPredicates, 22 NumberOfNonLiveVariables, 761 ConjunctsInSsa, 105 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 74 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-21 19:54:46,348 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a8298a1-0ae0-4080-bf02-b8b02b2c663c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...