./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test19-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c664c91a-612b-451e-99bc-38564112ded6/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c664c91a-612b-451e-99bc-38564112ded6/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c664c91a-612b-451e-99bc-38564112ded6/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c664c91a-612b-451e-99bc-38564112ded6/bin/uautomizer-WNIpwEf4Nt/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test19-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c664c91a-612b-451e-99bc-38564112ded6/bin/uautomizer-WNIpwEf4Nt/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c664c91a-612b-451e-99bc-38564112ded6/bin/uautomizer-WNIpwEf4Nt --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 c4aae20e4021ef81b34c3b5e73189099db316119 ................................................................................................................................... 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_c664c91a-612b-451e-99bc-38564112ded6/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c664c91a-612b-451e-99bc-38564112ded6/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c664c91a-612b-451e-99bc-38564112ded6/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c664c91a-612b-451e-99bc-38564112ded6/bin/uautomizer-WNIpwEf4Nt/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test19-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c664c91a-612b-451e-99bc-38564112ded6/bin/uautomizer-WNIpwEf4Nt/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c664c91a-612b-451e-99bc-38564112ded6/bin/uautomizer-WNIpwEf4Nt --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 c4aae20e4021ef81b34c3b5e73189099db316119 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 00:41:10,756 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:41:10,759 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:41:10,815 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:41:10,816 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:41:10,820 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:41:10,822 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:41:10,826 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:41:10,829 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:41:10,835 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:41:10,836 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:41:10,838 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:41:10,838 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:41:10,841 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:41:10,843 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:41:10,849 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:41:10,853 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:41:10,855 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:41:10,858 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:41:10,870 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:41:10,872 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:41:10,874 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:41:10,877 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:41:10,878 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:41:10,888 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:41:10,888 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:41:10,889 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:41:10,891 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:41:10,892 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:41:10,893 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:41:10,894 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:41:10,895 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:41:10,897 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:41:10,898 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:41:10,900 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:41:10,900 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:41:10,901 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:41:10,901 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:41:10,902 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:41:10,903 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:41:10,903 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:41:10,904 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c664c91a-612b-451e-99bc-38564112ded6/bin/uautomizer-WNIpwEf4Nt/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-10-13 00:41:10,947 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:41:10,948 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:41:10,948 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:41:10,949 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:41:10,956 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:41:10,956 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:41:10,957 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:41:10,957 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:41:10,957 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:41:10,958 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 00:41:10,959 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:41:10,959 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:41:10,959 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:41:10,959 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-13 00:41:10,960 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-13 00:41:10,960 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-13 00:41:10,960 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 00:41:10,960 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 00:41:10,961 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:41:10,961 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:41:10,961 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:41:10,962 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:41:10,962 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 00:41:10,962 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:41:10,962 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:41:10,963 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 00:41:10,963 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:41:10,963 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 00:41:10,963 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:41:10,965 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_c664c91a-612b-451e-99bc-38564112ded6/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c664c91a-612b-451e-99bc-38564112ded6/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c4aae20e4021ef81b34c3b5e73189099db316119 [2021-10-13 00:41:11,214 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:41:11,236 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:41:11,239 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:41:11,240 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:41:11,241 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:41:11,242 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c664c91a-612b-451e-99bc-38564112ded6/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/ldv-memsafety/memleaks_test19-1.i [2021-10-13 00:41:11,336 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c664c91a-612b-451e-99bc-38564112ded6/bin/uautomizer-WNIpwEf4Nt/data/ef437b625/d50a7b822f81425586d3f3ce65b328e3/FLAGab2ce9095 [2021-10-13 00:41:12,004 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:41:12,005 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c664c91a-612b-451e-99bc-38564112ded6/sv-benchmarks/c/ldv-memsafety/memleaks_test19-1.i [2021-10-13 00:41:12,023 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c664c91a-612b-451e-99bc-38564112ded6/bin/uautomizer-WNIpwEf4Nt/data/ef437b625/d50a7b822f81425586d3f3ce65b328e3/FLAGab2ce9095 [2021-10-13 00:41:12,278 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c664c91a-612b-451e-99bc-38564112ded6/bin/uautomizer-WNIpwEf4Nt/data/ef437b625/d50a7b822f81425586d3f3ce65b328e3 [2021-10-13 00:41:12,280 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:41:12,281 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-13 00:41:12,282 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:41:12,283 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:41:12,286 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:41:12,287 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:41:12" (1/1) ... [2021-10-13 00:41:12,288 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41af4126 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:41:12, skipping insertion in model container [2021-10-13 00:41:12,288 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:41:12" (1/1) ... [2021-10-13 00:41:12,295 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:41:12,342 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:41:12,785 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:41:12,808 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) [2021-10-13 00:41:12,809 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@45737258 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:41:12, skipping insertion in model container [2021-10-13 00:41:12,809 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:41:12,810 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-10-13 00:41:12,813 INFO L168 Benchmark]: Toolchain (without parser) took 529.72 ms. Allocated memory was 107.0 MB in the beginning and 155.2 MB in the end (delta: 48.2 MB). Free memory was 76.0 MB in the beginning and 125.0 MB in the end (delta: -49.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-13 00:41:12,815 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 107.0 MB. Free memory is still 59.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:41:12,817 INFO L168 Benchmark]: CACSL2BoogieTranslator took 527.63 ms. Allocated memory was 107.0 MB in the beginning and 155.2 MB in the end (delta: 48.2 MB). Free memory was 75.6 MB in the beginning and 125.0 MB in the end (delta: -49.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-13 00:41:12,819 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 107.0 MB. Free memory is still 59.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 527.63 ms. Allocated memory was 107.0 MB in the beginning and 155.2 MB in the end (delta: 48.2 MB). Free memory was 75.6 MB in the beginning and 125.0 MB in the end (delta: -49.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 00:41:14,982 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:41:14,986 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:41:15,038 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:41:15,039 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:41:15,043 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:41:15,045 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:41:15,052 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:41:15,055 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:41:15,060 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:41:15,062 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:41:15,064 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:41:15,064 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:41:15,067 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:41:15,069 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:41:15,073 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:41:15,075 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:41:15,076 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:41:15,078 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:41:15,086 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:41:15,088 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:41:15,089 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:41:15,091 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:41:15,094 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:41:15,103 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:41:15,103 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:41:15,104 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:41:15,106 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:41:15,106 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:41:15,108 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:41:15,108 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:41:15,109 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:41:15,111 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:41:15,112 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:41:15,114 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:41:15,114 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:41:15,115 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:41:15,115 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:41:15,115 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:41:15,117 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:41:15,118 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:41:15,123 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c664c91a-612b-451e-99bc-38564112ded6/bin/uautomizer-WNIpwEf4Nt/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-13 00:41:15,166 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:41:15,166 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:41:15,167 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:41:15,167 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:41:15,169 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:41:15,169 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:41:15,169 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:41:15,170 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:41:15,170 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:41:15,170 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 00:41:15,171 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:41:15,171 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:41:15,172 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:41:15,172 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-13 00:41:15,172 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-13 00:41:15,173 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-13 00:41:15,173 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 00:41:15,173 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 00:41:15,173 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-13 00:41:15,173 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-13 00:41:15,174 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:41:15,174 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:41:15,174 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:41:15,174 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:41:15,175 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 00:41:15,175 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:41:15,175 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:41:15,176 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 00:41:15,176 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-13 00:41:15,176 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-13 00:41:15,176 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:41:15,177 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 00:41:15,177 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_c664c91a-612b-451e-99bc-38564112ded6/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c664c91a-612b-451e-99bc-38564112ded6/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c4aae20e4021ef81b34c3b5e73189099db316119 [2021-10-13 00:41:15,575 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:41:15,598 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:41:15,601 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:41:15,602 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:41:15,606 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:41:15,607 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c664c91a-612b-451e-99bc-38564112ded6/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/ldv-memsafety/memleaks_test19-1.i [2021-10-13 00:41:15,687 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c664c91a-612b-451e-99bc-38564112ded6/bin/uautomizer-WNIpwEf4Nt/data/504f49016/645b66254c3742e496c7f85ba03ec50c/FLAG306e5fac2 [2021-10-13 00:41:16,246 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:41:16,247 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c664c91a-612b-451e-99bc-38564112ded6/sv-benchmarks/c/ldv-memsafety/memleaks_test19-1.i [2021-10-13 00:41:16,275 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c664c91a-612b-451e-99bc-38564112ded6/bin/uautomizer-WNIpwEf4Nt/data/504f49016/645b66254c3742e496c7f85ba03ec50c/FLAG306e5fac2 [2021-10-13 00:41:16,562 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c664c91a-612b-451e-99bc-38564112ded6/bin/uautomizer-WNIpwEf4Nt/data/504f49016/645b66254c3742e496c7f85ba03ec50c [2021-10-13 00:41:16,565 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:41:16,567 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-13 00:41:16,570 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:41:16,570 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:41:16,574 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:41:16,575 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:41:16" (1/1) ... [2021-10-13 00:41:16,577 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e4e2d69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:41:16, skipping insertion in model container [2021-10-13 00:41:16,577 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:41:16" (1/1) ... [2021-10-13 00:41:16,584 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:41:16,656 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:41:17,129 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:41:17,145 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-13 00:41:17,158 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:41:17,203 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:41:17,222 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:41:17,303 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:41:17,382 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:41:17,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:41:17 WrapperNode [2021-10-13 00:41:17,383 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:41:17,384 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:41:17,384 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:41:17,384 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:41:17,396 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:41:17" (1/1) ... [2021-10-13 00:41:17,397 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:41:17" (1/1) ... [2021-10-13 00:41:17,421 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:41:17" (1/1) ... [2021-10-13 00:41:17,422 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:41:17" (1/1) ... [2021-10-13 00:41:17,465 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:41:17" (1/1) ... [2021-10-13 00:41:17,473 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:41:17" (1/1) ... [2021-10-13 00:41:17,480 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:41:17" (1/1) ... [2021-10-13 00:41:17,496 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:41:17,502 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:41:17,502 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:41:17,502 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:41:17,503 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:41:17" (1/1) ... [2021-10-13 00:41:17,510 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:41:17,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c664c91a-612b-451e-99bc-38564112ded6/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:41:17,531 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c664c91a-612b-451e-99bc-38564112ded6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 00:41:17,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c664c91a-612b-451e-99bc-38564112ded6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 00:41:17,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-13 00:41:17,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:41:17,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-10-13 00:41:17,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-10-13 00:41:17,578 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-10-13 00:41:17,578 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-10-13 00:41:17,579 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-10-13 00:41:17,579 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-10-13 00:41:17,579 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-10-13 00:41:17,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-10-13 00:41:17,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-10-13 00:41:17,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-10-13 00:41:17,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-10-13 00:41:17,580 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-10-13 00:41:17,580 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-10-13 00:41:17,580 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-10-13 00:41:17,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-10-13 00:41:17,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-10-13 00:41:17,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-10-13 00:41:17,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-10-13 00:41:17,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-10-13 00:41:17,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-10-13 00:41:17,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-10-13 00:41:17,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-10-13 00:41:17,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-10-13 00:41:17,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-10-13 00:41:17,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-10-13 00:41:17,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-10-13 00:41:17,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-10-13 00:41:17,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-10-13 00:41:17,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-10-13 00:41:17,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-10-13 00:41:17,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-10-13 00:41:17,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-10-13 00:41:17,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-10-13 00:41:17,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-10-13 00:41:17,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-10-13 00:41:17,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-10-13 00:41:17,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-10-13 00:41:17,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-10-13 00:41:17,592 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-10-13 00:41:17,592 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-10-13 00:41:17,592 INFO L138 BoogieDeclarations]: Found implementation of procedure f19 [2021-10-13 00:41:17,592 INFO L138 BoogieDeclarations]: Found implementation of procedure f19_undo [2021-10-13 00:41:17,592 INFO L138 BoogieDeclarations]: Found implementation of procedure g19 [2021-10-13 00:41:17,592 INFO L138 BoogieDeclarations]: Found implementation of procedure probe_19 [2021-10-13 00:41:17,593 INFO L138 BoogieDeclarations]: Found implementation of procedure disconnect_19 [2021-10-13 00:41:17,593 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-10-13 00:41:17,593 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-13 00:41:17,593 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-10-13 00:41:17,593 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-10-13 00:41:17,593 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-10-13 00:41:17,594 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-10-13 00:41:17,594 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-10-13 00:41:17,594 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-10-13 00:41:17,594 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-10-13 00:41:17,594 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-10-13 00:41:17,594 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-10-13 00:41:17,595 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-10-13 00:41:17,595 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-10-13 00:41:17,595 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-10-13 00:41:17,595 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-10-13 00:41:17,595 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-10-13 00:41:17,595 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-10-13 00:41:17,596 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-10-13 00:41:17,596 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-10-13 00:41:17,596 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-10-13 00:41:17,596 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-10-13 00:41:17,596 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-10-13 00:41:17,596 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-10-13 00:41:17,597 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-10-13 00:41:17,597 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-10-13 00:41:17,597 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-10-13 00:41:17,597 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-10-13 00:41:17,597 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-10-13 00:41:17,597 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-10-13 00:41:17,597 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-10-13 00:41:17,598 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-10-13 00:41:17,598 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-10-13 00:41:17,598 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-10-13 00:41:17,598 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-10-13 00:41:17,598 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-10-13 00:41:17,598 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-10-13 00:41:17,599 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-10-13 00:41:17,599 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-10-13 00:41:17,599 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-10-13 00:41:17,599 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-10-13 00:41:17,599 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-10-13 00:41:17,599 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-10-13 00:41:17,600 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-10-13 00:41:17,600 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-10-13 00:41:17,600 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-10-13 00:41:17,600 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-10-13 00:41:17,600 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-10-13 00:41:17,600 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-10-13 00:41:17,601 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-10-13 00:41:17,601 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-10-13 00:41:17,601 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-10-13 00:41:17,601 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-10-13 00:41:17,604 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-10-13 00:41:17,605 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-10-13 00:41:17,605 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-10-13 00:41:17,605 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-10-13 00:41:17,605 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-10-13 00:41:17,605 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-10-13 00:41:17,606 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-10-13 00:41:17,606 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-10-13 00:41:17,606 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-10-13 00:41:17,606 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-10-13 00:41:17,606 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-10-13 00:41:17,607 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-10-13 00:41:17,607 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-10-13 00:41:17,607 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-10-13 00:41:17,607 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-10-13 00:41:17,607 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-10-13 00:41:17,608 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-13 00:41:17,608 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-10-13 00:41:17,608 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-10-13 00:41:17,608 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-10-13 00:41:17,609 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-10-13 00:41:17,609 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-10-13 00:41:17,609 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-10-13 00:41:17,610 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-10-13 00:41:17,611 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-10-13 00:41:17,614 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-10-13 00:41:17,614 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-10-13 00:41:17,614 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-10-13 00:41:17,615 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-10-13 00:41:17,615 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-10-13 00:41:17,615 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-10-13 00:41:17,615 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-10-13 00:41:17,616 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-10-13 00:41:17,616 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-10-13 00:41:17,622 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-10-13 00:41:17,622 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-10-13 00:41:17,622 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-10-13 00:41:17,622 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-10-13 00:41:17,622 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-10-13 00:41:17,623 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-10-13 00:41:17,623 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-10-13 00:41:17,623 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-10-13 00:41:17,623 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-10-13 00:41:17,623 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-10-13 00:41:17,623 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-10-13 00:41:17,623 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-10-13 00:41:17,623 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-10-13 00:41:17,624 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-10-13 00:41:17,624 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-10-13 00:41:17,624 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-10-13 00:41:17,624 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-10-13 00:41:17,624 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-10-13 00:41:17,624 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-10-13 00:41:17,624 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-10-13 00:41:17,625 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-10-13 00:41:17,625 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-10-13 00:41:17,625 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-10-13 00:41:17,625 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-10-13 00:41:17,625 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-10-13 00:41:17,625 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-10-13 00:41:17,625 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-10-13 00:41:17,626 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-13 00:41:17,626 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-10-13 00:41:17,626 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-10-13 00:41:17,626 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-10-13 00:41:17,626 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-10-13 00:41:17,626 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-10-13 00:41:17,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-13 00:41:17,626 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-10-13 00:41:17,627 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-10-13 00:41:17,627 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-10-13 00:41:17,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-13 00:41:17,627 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-10-13 00:41:17,627 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-10-13 00:41:17,627 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-10-13 00:41:17,627 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-13 00:41:17,628 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-10-13 00:41:17,628 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-10-13 00:41:17,628 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-10-13 00:41:17,628 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-10-13 00:41:17,628 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-10-13 00:41:17,628 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-10-13 00:41:17,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 00:41:17,629 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-10-13 00:41:17,629 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-10-13 00:41:17,629 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-10-13 00:41:17,629 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-10-13 00:41:17,629 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-10-13 00:41:17,629 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-13 00:41:17,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-13 00:41:17,629 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-10-13 00:41:17,630 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-10-13 00:41:17,630 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-10-13 00:41:17,630 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-10-13 00:41:17,630 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-10-13 00:41:17,630 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-10-13 00:41:17,630 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-10-13 00:41:17,630 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-10-13 00:41:17,631 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-10-13 00:41:17,631 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-10-13 00:41:17,631 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-10-13 00:41:17,631 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-10-13 00:41:17,631 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-10-13 00:41:17,631 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-10-13 00:41:17,631 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-10-13 00:41:17,631 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-10-13 00:41:17,632 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-10-13 00:41:17,632 INFO L130 BoogieDeclarations]: Found specification of procedure f19 [2021-10-13 00:41:17,635 INFO L130 BoogieDeclarations]: Found specification of procedure f19_undo [2021-10-13 00:41:17,636 INFO L130 BoogieDeclarations]: Found specification of procedure g19 [2021-10-13 00:41:17,636 INFO L130 BoogieDeclarations]: Found specification of procedure probe_19 [2021-10-13 00:41:17,636 INFO L130 BoogieDeclarations]: Found specification of procedure disconnect_19 [2021-10-13 00:41:17,636 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-10-13 00:41:17,636 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:41:17,636 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-13 00:41:17,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-13 00:41:17,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-13 00:41:17,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:41:17,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-10-13 00:41:17,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-10-13 00:41:17,638 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-10-13 00:41:17,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-10-13 00:41:17,638 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-10-13 00:41:18,496 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 00:41:18,877 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 00:41:19,186 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:41:19,186 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-10-13 00:41:19,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:41:19 BoogieIcfgContainer [2021-10-13 00:41:19,189 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:41:19,194 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 00:41:19,194 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 00:41:19,197 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 00:41:19,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:41:16" (1/3) ... [2021-10-13 00:41:19,198 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ea22d6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:41:19, skipping insertion in model container [2021-10-13 00:41:19,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:41:17" (2/3) ... [2021-10-13 00:41:19,199 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ea22d6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:41:19, skipping insertion in model container [2021-10-13 00:41:19,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:41:19" (3/3) ... [2021-10-13 00:41:19,200 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test19-1.i [2021-10-13 00:41:19,209 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 00:41:19,209 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 94 error locations. [2021-10-13 00:41:19,253 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 00:41:19,259 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, mConcurrency=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 [2021-10-13 00:41:19,260 INFO L340 AbstractCegarLoop]: Starting to check reachability of 94 error locations. [2021-10-13 00:41:19,277 INFO L276 IsEmpty]: Start isEmpty. Operand has 161 states, 86 states have (on average 1.6046511627906976) internal successors, (138), 129 states have internal predecessors, (138), 18 states have call successors, (18), 15 states have call predecessors, (18), 15 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2021-10-13 00:41:19,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-13 00:41:19,284 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:41:19,284 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:41:19,285 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting probe_19Err0REQUIRES_VIOLATION === [f19_undoErr0REQUIRES_VIOLATION, f19_undoErr1REQUIRES_VIOLATION, f19_undoErr2ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr3ASSERT_VIOLATIONMEMORY_FREE (and 90 more)] === [2021-10-13 00:41:19,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:41:19,290 INFO L82 PathProgramCache]: Analyzing trace with hash -1164629906, now seen corresponding path program 1 times [2021-10-13 00:41:19,301 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:41:19,301 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [603725606] [2021-10-13 00:41:19,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:41:19,303 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:41:19,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c664c91a-612b-451e-99bc-38564112ded6/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:41:19,306 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c664c91a-612b-451e-99bc-38564112ded6/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:41:19,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c664c91a-612b-451e-99bc-38564112ded6/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-13 00:41:19,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:41:19,528 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-13 00:41:19,533 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:41:19,622 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 [2021-10-13 00:41:19,795 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-10-13 00:41:19,796 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 16 treesize of output 21 [2021-10-13 00:41:19,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:41:19,844 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:41:20,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:41:20,168 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:41:20,168 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [603725606] [2021-10-13 00:41:20,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [603725606] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:41:20,169 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:41:20,169 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 5] imperfect sequences [] total 7 [2021-10-13 00:41:20,172 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334025637] [2021-10-13 00:41:20,177 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-13 00:41:20,177 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:41:20,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-13 00:41:20,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-10-13 00:41:20,199 INFO L87 Difference]: Start difference. First operand has 161 states, 86 states have (on average 1.6046511627906976) internal successors, (138), 129 states have internal predecessors, (138), 18 states have call successors, (18), 15 states have call predecessors, (18), 15 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 8 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 7 states have internal predecessors, (11), 3 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-13 00:41:23,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:41:23,179 INFO L93 Difference]: Finished difference Result 166 states and 190 transitions. [2021-10-13 00:41:23,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-13 00:41:23,181 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 7 states have internal predecessors, (11), 3 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 15 [2021-10-13 00:41:23,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:41:23,194 INFO L225 Difference]: With dead ends: 166 [2021-10-13 00:41:23,194 INFO L226 Difference]: Without dead ends: 163 [2021-10-13 00:41:23,197 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 18 SyntacticMatches, 5 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 298.0ms TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2021-10-13 00:41:23,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2021-10-13 00:41:23,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 87. [2021-10-13 00:41:23,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 46 states have (on average 1.608695652173913) internal successors, (74), 68 states have internal predecessors, (74), 11 states have call successors, (11), 9 states have call predecessors, (11), 8 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2021-10-13 00:41:23,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 95 transitions. [2021-10-13 00:41:23,271 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 95 transitions. Word has length 15 [2021-10-13 00:41:23,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:41:23,272 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 95 transitions. [2021-10-13 00:41:23,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 7 states have internal predecessors, (11), 3 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-13 00:41:23,272 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 95 transitions. [2021-10-13 00:41:23,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-13 00:41:23,275 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:41:23,275 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:41:23,300 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c664c91a-612b-451e-99bc-38564112ded6/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-13 00:41:23,496 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c664c91a-612b-451e-99bc-38564112ded6/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:41:23,497 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting probe_19Err1REQUIRES_VIOLATION === [f19_undoErr0REQUIRES_VIOLATION, f19_undoErr1REQUIRES_VIOLATION, f19_undoErr2ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr3ASSERT_VIOLATIONMEMORY_FREE (and 90 more)] === [2021-10-13 00:41:23,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:41:23,499 INFO L82 PathProgramCache]: Analyzing trace with hash -1164629905, now seen corresponding path program 1 times [2021-10-13 00:41:23,499 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:41:23,499 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1955493975] [2021-10-13 00:41:23,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:41:23,500 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:41:23,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c664c91a-612b-451e-99bc-38564112ded6/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:41:23,501 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c664c91a-612b-451e-99bc-38564112ded6/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:41:23,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c664c91a-612b-451e-99bc-38564112ded6/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-13 00:41:23,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:41:23,690 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-13 00:41:23,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:41:23,730 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 [2021-10-13 00:41:23,747 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 [2021-10-13 00:41:25,994 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-10-13 00:41:25,994 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 29 treesize of output 31 [2021-10-13 00:41:26,007 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-13 00:41:26,007 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 23 treesize of output 23 [2021-10-13 00:41:26,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:41:26,045 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:41:30,524 WARN L860 $PredicateComparison]: unable to prove that (forall ((v_probe_19_~a.base_BEFORE_CALL_4 (_ BitVec 32)) (|v_ldv_malloc_#res.base_10| (_ BitVec 32)) (v_probe_19_~a.offset_BEFORE_CALL_2 (_ BitVec 32))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ldv_malloc_#res.base_10|))) (and (forall ((ldv_malloc_~size (_ BitVec 32))) (bvule (bvadd (_ bv8 32) v_probe_19_~a.offset_BEFORE_CALL_2) (select (store |c_#length| |v_ldv_malloc_#res.base_10| ldv_malloc_~size) v_probe_19_~a.base_BEFORE_CALL_4))) (bvule (bvadd (_ bv4 32) v_probe_19_~a.offset_BEFORE_CALL_2) (bvadd (_ bv8 32) v_probe_19_~a.offset_BEFORE_CALL_2))) (exists ((|v_ldv_malloc_#res.base_9| (_ BitVec 32))) (and (or (exists ((v_ldv_malloc_~size_9 (_ BitVec 32))) (not (bvule (bvadd (_ bv8 32) v_probe_19_~a.offset_BEFORE_CALL_2) (select (store |c_old(#length)| |v_ldv_malloc_#res.base_9| v_ldv_malloc_~size_9) v_probe_19_~a.base_BEFORE_CALL_4)))) (not (bvule (bvadd (_ bv4 32) v_probe_19_~a.offset_BEFORE_CALL_2) (bvadd (_ bv8 32) v_probe_19_~a.offset_BEFORE_CALL_2)))) (= (_ bv0 1) (bvneg (select |c_old(#valid)| |v_ldv_malloc_#res.base_9|))))))) is different from true [2021-10-13 00:41:33,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:41:33,728 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:41:33,729 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1955493975] [2021-10-13 00:41:33,729 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1955493975] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:41:33,729 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:41:33,729 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2021-10-13 00:41:33,729 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404251356] [2021-10-13 00:41:33,730 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-13 00:41:33,730 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:41:33,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-13 00:41:33,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=125, Unknown=3, NotChecked=22, Total=182 [2021-10-13 00:41:33,732 INFO L87 Difference]: Start difference. First operand 87 states and 95 transitions. Second operand has 14 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 10 states have internal predecessors, (14), 5 states have call successors, (7), 5 states have call predecessors, (7), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-10-13 00:45:13,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:45:13,758 INFO L93 Difference]: Finished difference Result 151 states and 176 transitions. [2021-10-13 00:45:13,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-13 00:45:13,760 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 10 states have internal predecessors, (14), 5 states have call successors, (7), 5 states have call predecessors, (7), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 15 [2021-10-13 00:45:13,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:45:13,762 INFO L225 Difference]: With dead ends: 151 [2021-10-13 00:45:13,762 INFO L226 Difference]: Without dead ends: 151 [2021-10-13 00:45:13,763 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 33502.0ms TimeCoverageRelationStatistics Valid=91, Invalid=319, Unknown=14, NotChecked=38, Total=462 [2021-10-13 00:45:13,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2021-10-13 00:45:13,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 84. [2021-10-13 00:45:13,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 46 states have (on average 1.5217391304347827) internal successors, (70), 65 states have internal predecessors, (70), 11 states have call successors, (11), 9 states have call predecessors, (11), 8 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2021-10-13 00:45:13,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 91 transitions. [2021-10-13 00:45:13,774 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 91 transitions. Word has length 15 [2021-10-13 00:45:13,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:45:13,774 INFO L470 AbstractCegarLoop]: Abstraction has 84 states and 91 transitions. [2021-10-13 00:45:13,774 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 10 states have internal predecessors, (14), 5 states have call successors, (7), 5 states have call predecessors, (7), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-10-13 00:45:13,775 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 91 transitions. [2021-10-13 00:45:13,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-13 00:45:13,776 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:45:13,776 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:45:13,786 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c664c91a-612b-451e-99bc-38564112ded6/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-10-13 00:45:13,976 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c664c91a-612b-451e-99bc-38564112ded6/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:45:13,980 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting f19Err0REQUIRES_VIOLATION === [f19_undoErr0REQUIRES_VIOLATION, f19_undoErr1REQUIRES_VIOLATION, f19_undoErr2ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr3ASSERT_VIOLATIONMEMORY_FREE (and 90 more)] === [2021-10-13 00:45:13,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:45:13,981 INFO L82 PathProgramCache]: Analyzing trace with hash -1030331904, now seen corresponding path program 1 times [2021-10-13 00:45:13,981 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:45:13,982 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1012850621] [2021-10-13 00:45:13,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:45:13,982 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:45:13,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c664c91a-612b-451e-99bc-38564112ded6/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:45:13,984 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c664c91a-612b-451e-99bc-38564112ded6/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:45:13,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c664c91a-612b-451e-99bc-38564112ded6/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-13 00:45:14,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:45:14,200 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-13 00:45:14,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:45:14,450 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-10-13 00:45:14,450 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 24 [2021-10-13 00:45:14,490 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:45:14,490 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:45:14,813 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:45:14,813 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:45:14,813 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1012850621] [2021-10-13 00:45:14,814 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1012850621] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:45:14,814 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:45:14,814 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 5] imperfect sequences [] total 7 [2021-10-13 00:45:14,814 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254982634] [2021-10-13 00:45:14,815 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-13 00:45:14,815 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:45:14,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-13 00:45:14,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-10-13 00:45:14,816 INFO L87 Difference]: Start difference. First operand 84 states and 91 transitions. Second operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-13 00:45:15,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:45:15,902 INFO L93 Difference]: Finished difference Result 151 states and 175 transitions. [2021-10-13 00:45:15,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-13 00:45:15,902 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 26 [2021-10-13 00:45:15,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:45:15,904 INFO L225 Difference]: With dead ends: 151 [2021-10-13 00:45:15,904 INFO L226 Difference]: Without dead ends: 151 [2021-10-13 00:45:15,905 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 40 SyntacticMatches, 6 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 459.9ms TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2021-10-13 00:45:15,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2021-10-13 00:45:15,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 82. [2021-10-13 00:45:15,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 46 states have (on average 1.4782608695652173) internal successors, (68), 63 states have internal predecessors, (68), 11 states have call successors, (11), 9 states have call predecessors, (11), 8 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2021-10-13 00:45:15,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 89 transitions. [2021-10-13 00:45:15,914 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 89 transitions. Word has length 26 [2021-10-13 00:45:15,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:45:15,915 INFO L470 AbstractCegarLoop]: Abstraction has 82 states and 89 transitions. [2021-10-13 00:45:15,915 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-13 00:45:15,915 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 89 transitions. [2021-10-13 00:45:15,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-13 00:45:15,916 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:45:15,916 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:45:15,929 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c664c91a-612b-451e-99bc-38564112ded6/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-13 00:45:16,125 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c664c91a-612b-451e-99bc-38564112ded6/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:45:16,126 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting f19Err1REQUIRES_VIOLATION === [f19_undoErr0REQUIRES_VIOLATION, f19_undoErr1REQUIRES_VIOLATION, f19_undoErr2ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr3ASSERT_VIOLATIONMEMORY_FREE (and 90 more)] === [2021-10-13 00:45:16,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:45:16,126 INFO L82 PathProgramCache]: Analyzing trace with hash -1030331903, now seen corresponding path program 1 times [2021-10-13 00:45:16,127 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:45:16,127 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [619882847] [2021-10-13 00:45:16,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:45:16,127 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:45:16,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c664c91a-612b-451e-99bc-38564112ded6/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:45:16,128 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c664c91a-612b-451e-99bc-38564112ded6/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:45:16,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c664c91a-612b-451e-99bc-38564112ded6/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-13 00:45:16,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:45:16,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 21 conjunts are in the unsatisfiable core [2021-10-13 00:45:16,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:45:16,430 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 [2021-10-13 00:45:18,980 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-10-13 00:45:18,980 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 39 [2021-10-13 00:45:19,001 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-13 00:45:19,002 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 31 [2021-10-13 00:45:19,085 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:45:19,085 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:45:34,572 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-10-13 00:45:34,573 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 44 treesize of output 43 [2021-10-13 00:45:37,058 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 86 treesize of output 82 [2021-10-13 00:45:40,125 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:45:40,125 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:45:40,125 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [619882847] [2021-10-13 00:45:40,125 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [619882847] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:45:40,125 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:45:40,126 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 11] imperfect sequences [] total 20 [2021-10-13 00:45:40,126 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486289381] [2021-10-13 00:45:40,126 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-13 00:45:40,126 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:45:40,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-13 00:45:40,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=360, Unknown=5, NotChecked=0, Total=420 [2021-10-13 00:45:40,128 INFO L87 Difference]: Start difference. First operand 82 states and 89 transitions. Second operand has 21 states, 15 states have (on average 1.8) internal successors, (27), 14 states have internal predecessors, (27), 9 states have call successors, (11), 7 states have call predecessors, (11), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-10-13 00:49:22,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:49:22,753 INFO L93 Difference]: Finished difference Result 147 states and 170 transitions. [2021-10-13 00:49:22,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-13 00:49:22,753 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 15 states have (on average 1.8) internal successors, (27), 14 states have internal predecessors, (27), 9 states have call successors, (11), 7 states have call predecessors, (11), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 26 [2021-10-13 00:49:22,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:49:22,756 INFO L225 Difference]: With dead ends: 147 [2021-10-13 00:49:22,756 INFO L226 Difference]: Without dead ends: 147 [2021-10-13 00:49:22,757 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 49071.2ms TimeCoverageRelationStatistics Valid=232, Invalid=1159, Unknown=15, NotChecked=0, Total=1406 [2021-10-13 00:49:22,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2021-10-13 00:49:22,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 80. [2021-10-13 00:49:22,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 46 states have (on average 1.434782608695652) internal successors, (66), 61 states have internal predecessors, (66), 11 states have call successors, (11), 9 states have call predecessors, (11), 8 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2021-10-13 00:49:22,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 87 transitions. [2021-10-13 00:49:22,768 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 87 transitions. Word has length 26 [2021-10-13 00:49:22,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:49:22,769 INFO L470 AbstractCegarLoop]: Abstraction has 80 states and 87 transitions. [2021-10-13 00:49:22,769 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 15 states have (on average 1.8) internal successors, (27), 14 states have internal predecessors, (27), 9 states have call successors, (11), 7 states have call predecessors, (11), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-10-13 00:49:22,769 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 87 transitions. [2021-10-13 00:49:22,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-13 00:49:22,770 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:49:22,771 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:49:22,782 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c664c91a-612b-451e-99bc-38564112ded6/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-13 00:49:22,977 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c664c91a-612b-451e-99bc-38564112ded6/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:49:22,978 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting disconnect_19Err0REQUIRES_VIOLATION === [f19_undoErr0REQUIRES_VIOLATION, f19_undoErr1REQUIRES_VIOLATION, f19_undoErr2ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr3ASSERT_VIOLATIONMEMORY_FREE (and 90 more)] === [2021-10-13 00:49:22,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:49:22,978 INFO L82 PathProgramCache]: Analyzing trace with hash 895813422, now seen corresponding path program 1 times [2021-10-13 00:49:22,979 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:49:22,979 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [688045716] [2021-10-13 00:49:22,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:49:22,979 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:49:22,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c664c91a-612b-451e-99bc-38564112ded6/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:49:22,982 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c664c91a-612b-451e-99bc-38564112ded6/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:49:22,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c664c91a-612b-451e-99bc-38564112ded6/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-13 00:49:23,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:49:23,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 00:49:23,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:49:23,340 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2021-10-13 00:49:23,379 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2021-10-13 00:49:23,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:49:23,433 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:49:23,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:49:23,590 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:49:23,591 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [688045716] [2021-10-13 00:49:23,591 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [688045716] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:49:23,591 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:49:23,591 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-10-13 00:49:23,591 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599124724] [2021-10-13 00:49:23,592 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 00:49:23,592 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:49:23,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 00:49:23,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-13 00:49:23,593 INFO L87 Difference]: Start difference. First operand 80 states and 87 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-13 00:49:23,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:49:23,781 INFO L93 Difference]: Finished difference Result 87 states and 96 transitions. [2021-10-13 00:49:23,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 00:49:23,781 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 26 [2021-10-13 00:49:23,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:49:23,783 INFO L225 Difference]: With dead ends: 87 [2021-10-13 00:49:23,783 INFO L226 Difference]: Without dead ends: 87 [2021-10-13 00:49:23,783 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 112.4ms TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-10-13 00:49:23,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2021-10-13 00:49:23,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 86. [2021-10-13 00:49:23,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 51 states have (on average 1.392156862745098) internal successors, (71), 66 states have internal predecessors, (71), 11 states have call successors, (11), 9 states have call predecessors, (11), 9 states have return successors, (12), 11 states have call predecessors, (12), 10 states have call successors, (12) [2021-10-13 00:49:23,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 94 transitions. [2021-10-13 00:49:23,792 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 94 transitions. Word has length 26 [2021-10-13 00:49:23,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:49:23,792 INFO L470 AbstractCegarLoop]: Abstraction has 86 states and 94 transitions. [2021-10-13 00:49:23,792 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-13 00:49:23,793 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 94 transitions. [2021-10-13 00:49:23,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-13 00:49:23,794 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:49:23,794 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:49:23,814 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c664c91a-612b-451e-99bc-38564112ded6/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-13 00:49:24,014 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c664c91a-612b-451e-99bc-38564112ded6/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:49:24,015 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting disconnect_19Err0REQUIRES_VIOLATION === [f19_undoErr0REQUIRES_VIOLATION, f19_undoErr1REQUIRES_VIOLATION, f19_undoErr2ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr3ASSERT_VIOLATIONMEMORY_FREE (and 90 more)] === [2021-10-13 00:49:24,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:49:24,015 INFO L82 PathProgramCache]: Analyzing trace with hash -1891602065, now seen corresponding path program 1 times [2021-10-13 00:49:24,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:49:24,016 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1506658731] [2021-10-13 00:49:24,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:49:24,016 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:49:24,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c664c91a-612b-451e-99bc-38564112ded6/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:49:24,018 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c664c91a-612b-451e-99bc-38564112ded6/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:49:24,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c664c91a-612b-451e-99bc-38564112ded6/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-13 00:49:24,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:49:24,357 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 00:49:24,359 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:49:24,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:49:24,489 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:49:24,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:49:24,698 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:49:24,699 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1506658731] [2021-10-13 00:49:24,699 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1506658731] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:49:24,699 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:49:24,699 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-10-13 00:49:24,699 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361600892] [2021-10-13 00:49:24,700 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-13 00:49:24,700 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:49:24,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-13 00:49:24,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-10-13 00:49:24,701 INFO L87 Difference]: Start difference. First operand 86 states and 94 transitions. Second operand has 10 states, 10 states have (on average 2.6) internal successors, (26), 8 states have internal predecessors, (26), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2021-10-13 00:49:24,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:49:24,827 INFO L93 Difference]: Finished difference Result 101 states and 109 transitions. [2021-10-13 00:49:24,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-13 00:49:24,828 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.6) internal successors, (26), 8 states have internal predecessors, (26), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) Word has length 26 [2021-10-13 00:49:24,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:49:24,829 INFO L225 Difference]: With dead ends: 101 [2021-10-13 00:49:24,830 INFO L226 Difference]: Without dead ends: 101 [2021-10-13 00:49:24,830 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 158.2ms TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-10-13 00:49:24,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2021-10-13 00:49:24,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 90. [2021-10-13 00:49:24,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 54 states have (on average 1.3703703703703705) internal successors, (74), 69 states have internal predecessors, (74), 11 states have call successors, (11), 9 states have call predecessors, (11), 10 states have return successors, (13), 12 states have call predecessors, (13), 10 states have call successors, (13) [2021-10-13 00:49:24,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 98 transitions. [2021-10-13 00:49:24,838 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 98 transitions. Word has length 26 [2021-10-13 00:49:24,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:49:24,839 INFO L470 AbstractCegarLoop]: Abstraction has 90 states and 98 transitions. [2021-10-13 00:49:24,839 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.6) internal successors, (26), 8 states have internal predecessors, (26), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2021-10-13 00:49:24,839 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 98 transitions. [2021-10-13 00:49:24,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-13 00:49:24,841 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:49:24,841 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] [2021-10-13 00:49:24,869 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c664c91a-612b-451e-99bc-38564112ded6/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-13 00:49:25,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c664c91a-612b-451e-99bc-38564112ded6/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:49:25,058 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [f19_undoErr0REQUIRES_VIOLATION, f19_undoErr1REQUIRES_VIOLATION, f19_undoErr2ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr3ASSERT_VIOLATIONMEMORY_FREE (and 90 more)] === [2021-10-13 00:49:25,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:49:25,058 INFO L82 PathProgramCache]: Analyzing trace with hash 1490464698, now seen corresponding path program 1 times [2021-10-13 00:49:25,059 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:49:25,059 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [867993334] [2021-10-13 00:49:25,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:49:25,059 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:49:25,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c664c91a-612b-451e-99bc-38564112ded6/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:49:25,060 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c664c91a-612b-451e-99bc-38564112ded6/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:49:25,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c664c91a-612b-451e-99bc-38564112ded6/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-13 00:49:25,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:49:25,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-13 00:49:25,386 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:49:25,412 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-10-13 00:49:25,412 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 [2021-10-13 00:49:29,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:49:29,967 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:49:34,262 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_4| (Array (_ BitVec 32) (_ BitVec 1)))) (or (= |v_old(#valid)_BEFORE_CALL_4| |c_#valid|) (exists ((|v_entry_point_~#a19~0.base_16| (_ BitVec 32))) (and (not (= |v_old(#valid)_BEFORE_CALL_4| (store |c_old(#valid)| |v_entry_point_~#a19~0.base_16| (_ bv0 1)))) (= (_ bv0 1) (bvneg (select |c_old(#valid)| |v_entry_point_~#a19~0.base_16|))))))) is different from false [2021-10-13 00:49:34,598 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_4| (Array (_ BitVec 32) (_ BitVec 1)))) (or (exists ((|v_entry_point_~#a19~0.base_16| (_ BitVec 32))) (and (not (= |v_old(#valid)_BEFORE_CALL_4| (store |c_old(#valid)| |v_entry_point_~#a19~0.base_16| (_ bv0 1)))) (= (_ bv0 1) (bvneg (select |c_old(#valid)| |v_entry_point_~#a19~0.base_16|))))) (= |v_old(#valid)_BEFORE_CALL_4| (store |c_#valid| |c_entry_point_~#a19~0.base| (_ bv0 1))))) is different from false [2021-10-13 00:49:34,853 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:49:34,853 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [867993334] [2021-10-13 00:49:34,854 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(= (store |v_old(#valid)_BEFORE_CALL_5| |v_entry_point_~#a19~0.base_16| (_ bv0 1)) v_prenex_3)=(= (select (store |v_old(#valid)_BEFORE_CALL_5| |v_entry_point_~#a19~0.base_16| (_ bv0 1)) v_antiDerIndex_entry0_1) (select v_prenex_3 v_antiDerIndex_entry0_1))} [2021-10-13 00:49:34,854 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1015318062] [2021-10-13 00:49:34,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:49:34,854 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 00:49:34,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c664c91a-612b-451e-99bc-38564112ded6/bin/uautomizer-WNIpwEf4Nt/cvc4 [2021-10-13 00:49:34,858 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c664c91a-612b-451e-99bc-38564112ded6/bin/uautomizer-WNIpwEf4Nt/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 00:49:34,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c664c91a-612b-451e-99bc-38564112ded6/bin/uautomizer-WNIpwEf4Nt/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2021-10-13 00:49:35,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:49:35,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-13 00:49:35,237 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:49:35,278 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-10-13 00:49:35,278 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 26 treesize of output 29 [2021-10-13 00:49:39,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:49:39,774 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:49:50,690 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(= (store |v_old(#valid)_BEFORE_CALL_10| |v_entry_point_~#a19~0.base_16| (_ bv0 1)) v_prenex_7)=(= (select v_prenex_7 v_antiDerIndex_entry0_2) (select (store |v_old(#valid)_BEFORE_CALL_10| |v_entry_point_~#a19~0.base_16| (_ bv0 1)) v_antiDerIndex_entry0_2))} [2021-10-13 00:49:50,691 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1314751131] [2021-10-13 00:49:50,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:49:50,691 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:49:50,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c664c91a-612b-451e-99bc-38564112ded6/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:49:50,695 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c664c91a-612b-451e-99bc-38564112ded6/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:49:50,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c664c91a-612b-451e-99bc-38564112ded6/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-13 00:49:51,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:49:51,131 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-13 00:49:51,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:49:55,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:49:55,362 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:50:05,795 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_14| (Array (_ BitVec 32) (_ BitVec 1)))) (or (= |v_old(#valid)_BEFORE_CALL_14| (store |c_#valid| |c_entry_point_~#a19~0.base| (_ bv0 1))) (exists ((|v_entry_point_~#a19~0.base_16| (_ BitVec 32))) (and (not (= |v_old(#valid)_BEFORE_CALL_14| (store |c_old(#valid)| |v_entry_point_~#a19~0.base_16| (_ bv0 1)))) (= (_ bv0 1) (bvneg (select |c_old(#valid)| |v_entry_point_~#a19~0.base_16|))))))) is different from false [2021-10-13 00:50:06,174 INFO L354 Elim1Store]: treesize reduction 16, result has 78.1 percent of original size [2021-10-13 00:50:06,174 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 58 treesize of output 105 [2021-10-13 00:50:06,974 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 [2021-10-13 00:50:07,652 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 00:50:07,652 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 57 treesize of output 97 [2021-10-13 00:50:08,702 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: No corresponding IProgramVar for v_prenex_9 [2021-10-13 00:50:08,702 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:50:08,702 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-10-13 00:50:08,702 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-10-13 00:50:08,702 INFO L626 BasicCegarLoop]: Counterexample might be feasible [2021-10-13 00:50:08,709 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-10-13 00:50:08,711 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location f19_undoErr0REQUIRES_VIOLATION [2021-10-13 00:50:08,712 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location f19_undoErr1REQUIRES_VIOLATION [2021-10-13 00:50:08,712 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location f19_undoErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:50:08,712 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location f19_undoErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:50:08,712 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location f19_undoErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:50:08,713 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location f19Err0REQUIRES_VIOLATION [2021-10-13 00:50:08,713 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location f19Err1REQUIRES_VIOLATION [2021-10-13 00:50:08,713 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location f19Err2REQUIRES_VIOLATION [2021-10-13 00:50:08,713 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location f19Err3REQUIRES_VIOLATION [2021-10-13 00:50:08,714 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION [2021-10-13 00:50:08,714 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION [2021-10-13 00:50:08,714 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe_19Err0REQUIRES_VIOLATION [2021-10-13 00:50:08,714 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe_19Err1REQUIRES_VIOLATION [2021-10-13 00:50:08,714 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe_19Err2REQUIRES_VIOLATION [2021-10-13 00:50:08,714 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe_19Err3REQUIRES_VIOLATION [2021-10-13 00:50:08,714 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe_19Err4REQUIRES_VIOLATION [2021-10-13 00:50:08,714 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe_19Err5REQUIRES_VIOLATION [2021-10-13 00:50:08,715 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe_19Err6ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:50:08,715 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe_19Err7ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:50:08,715 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe_19Err8ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:50:08,715 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION [2021-10-13 00:50:08,716 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION [2021-10-13 00:50:08,716 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location disconnect_19Err0REQUIRES_VIOLATION [2021-10-13 00:50:08,716 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location disconnect_19Err1REQUIRES_VIOLATION [2021-10-13 00:50:08,716 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location disconnect_19Err2ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:50:08,717 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location disconnect_19Err3ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:50:08,717 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location disconnect_19Err4ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:50:08,717 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION [2021-10-13 00:50:08,717 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION [2021-10-13 00:50:08,718 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION [2021-10-13 00:50:08,718 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION [2021-10-13 00:50:08,718 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION [2021-10-13 00:50:08,718 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION [2021-10-13 00:50:08,718 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION [2021-10-13 00:50:08,719 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION [2021-10-13 00:50:08,719 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION [2021-10-13 00:50:08,719 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION [2021-10-13 00:50:08,719 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION [2021-10-13 00:50:08,720 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION [2021-10-13 00:50:08,720 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION [2021-10-13 00:50:08,720 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION [2021-10-13 00:50:08,720 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION [2021-10-13 00:50:08,721 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION [2021-10-13 00:50:08,721 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION [2021-10-13 00:50:08,721 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION [2021-10-13 00:50:08,721 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION [2021-10-13 00:50:08,722 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION [2021-10-13 00:50:08,722 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION [2021-10-13 00:50:08,722 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION [2021-10-13 00:50:08,722 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION [2021-10-13 00:50:08,723 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION [2021-10-13 00:50:08,723 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION [2021-10-13 00:50:08,723 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION [2021-10-13 00:50:08,723 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION [2021-10-13 00:50:08,723 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION [2021-10-13 00:50:08,724 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION [2021-10-13 00:50:08,724 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION [2021-10-13 00:50:08,724 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION [2021-10-13 00:50:08,724 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION [2021-10-13 00:50:08,725 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION [2021-10-13 00:50:08,725 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION [2021-10-13 00:50:08,725 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION [2021-10-13 00:50:08,725 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION [2021-10-13 00:50:08,726 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION [2021-10-13 00:50:08,726 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION [2021-10-13 00:50:08,726 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:50:08,726 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:50:08,727 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:50:08,727 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:50:08,727 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:50:08,727 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:50:08,728 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION [2021-10-13 00:50:08,728 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION [2021-10-13 00:50:08,728 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION [2021-10-13 00:50:08,728 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION [2021-10-13 00:50:08,729 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION [2021-10-13 00:50:08,729 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION [2021-10-13 00:50:08,729 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION [2021-10-13 00:50:08,729 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION [2021-10-13 00:50:08,729 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:50:08,730 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:50:08,730 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:50:08,730 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:50:08,731 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:50:08,731 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:50:08,731 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION [2021-10-13 00:50:08,731 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION [2021-10-13 00:50:08,731 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION [2021-10-13 00:50:08,732 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION [2021-10-13 00:50:08,732 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION [2021-10-13 00:50:08,732 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION [2021-10-13 00:50:08,732 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION [2021-10-13 00:50:08,733 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION [2021-10-13 00:50:08,754 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c664c91a-612b-451e-99bc-38564112ded6/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-13 00:50:08,971 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c664c91a-612b-451e-99bc-38564112ded6/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-10-13 00:50:09,154 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c664c91a-612b-451e-99bc-38564112ded6/bin/uautomizer-WNIpwEf4Nt/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2021-10-13 00:50:09,351 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c664c91a-612b-451e-99bc-38564112ded6/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c664c91a-612b-451e-99bc-38564112ded6/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c664c91a-612b-451e-99bc-38564112ded6/bin/uautomizer-WNIpwEf4Nt/cvc4 --incremental --print-success --lang smt [2021-10-13 00:50:09,359 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 00:50:09,363 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-10-13 00:50:09,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 12:50:09 BoogieIcfgContainer [2021-10-13 00:50:09,372 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 00:50:09,373 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:50:09,373 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:50:09,373 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:50:09,373 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:41:19" (3/4) ... [2021-10-13 00:50:09,376 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-13 00:50:09,376 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:50:09,377 INFO L168 Benchmark]: Toolchain (without parser) took 532809.93 ms. Allocated memory was 65.0 MB in the beginning and 130.0 MB in the end (delta: 65.0 MB). Free memory was 43.4 MB in the beginning and 77.2 MB in the end (delta: -33.7 MB). Peak memory consumption was 30.9 MB. Max. memory is 16.1 GB. [2021-10-13 00:50:09,378 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 65.0 MB. Free memory was 46.5 MB in the beginning and 46.4 MB in the end (delta: 84.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:50:09,378 INFO L168 Benchmark]: CACSL2BoogieTranslator took 813.23 ms. Allocated memory was 65.0 MB in the beginning and 92.3 MB in the end (delta: 27.3 MB). Free memory was 43.3 MB in the beginning and 73.4 MB in the end (delta: -30.2 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-13 00:50:09,379 INFO L168 Benchmark]: Boogie Preprocessor took 112.17 ms. Allocated memory is still 92.3 MB. Free memory was 73.4 MB in the beginning and 68.8 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 00:50:09,379 INFO L168 Benchmark]: RCFGBuilder took 1687.50 ms. Allocated memory is still 92.3 MB. Free memory was 68.3 MB in the beginning and 47.4 MB in the end (delta: 20.9 MB). Peak memory consumption was 30.0 MB. Max. memory is 16.1 GB. [2021-10-13 00:50:09,380 INFO L168 Benchmark]: TraceAbstraction took 530178.57 ms. Allocated memory was 92.3 MB in the beginning and 130.0 MB in the end (delta: 37.7 MB). Free memory was 46.9 MB in the beginning and 77.2 MB in the end (delta: -30.2 MB). Peak memory consumption was 65.5 MB. Max. memory is 16.1 GB. [2021-10-13 00:50:09,380 INFO L168 Benchmark]: Witness Printer took 3.54 ms. Allocated memory is still 130.0 MB. Free memory is still 77.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:50:09,383 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 65.0 MB. Free memory was 46.5 MB in the beginning and 46.4 MB in the end (delta: 84.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 813.23 ms. Allocated memory was 65.0 MB in the beginning and 92.3 MB in the end (delta: 27.3 MB). Free memory was 43.3 MB in the beginning and 73.4 MB in the end (delta: -30.2 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 112.17 ms. Allocated memory is still 92.3 MB. Free memory was 73.4 MB in the beginning and 68.8 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1687.50 ms. Allocated memory is still 92.3 MB. Free memory was 68.3 MB in the beginning and 47.4 MB in the end (delta: 20.9 MB). Peak memory consumption was 30.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 530178.57 ms. Allocated memory was 92.3 MB in the beginning and 130.0 MB in the end (delta: 37.7 MB). Free memory was 46.9 MB in the beginning and 77.2 MB in the end (delta: -30.2 MB). Peak memory consumption was 65.5 MB. Max. memory is 16.1 GB. * Witness Printer took 3.54 ms. Allocated memory is still 130.0 MB. Free memory is still 77.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 804]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: unable to decide satisfiability of path constraint, overapproximation of memtrack at line 804. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L805] CALL entry_point() [L798] struct A19 a19; [L799] CALL, EXPR probe_19(&a19) [L774] int ret = - -3; [L775] CALL, EXPR ldv_malloc(sizeof(int)) [L526] COND FALSE !(__VERIFIER_nondet_int()) [L529] return 0; [L775] RET, EXPR ldv_malloc(sizeof(int)) [L775] a->q = (int *)ldv_malloc(sizeof(int)) [L776] EXPR a->q [L776] COND TRUE !a->q [L791] return ret; [L799] RET, EXPR probe_19(&a19) [L799] int ret = probe_19(&a19); [L800] COND FALSE !(ret==0) [L805] RET entry_point() - UnprovableResult [Line: 768]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 768]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 768]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 768]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 768]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 762]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 762]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 763]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 763]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 775]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 775]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 776]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 776]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 789]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 789]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 789]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 789]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 789]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 794]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 794]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 794]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 794]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 794]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 52 procedures, 401 locations, 94 error locations. Started 1 CEGAR loops. OverallTime: 530104.5ms, OverallIterations: 7, TraceHistogramMax: 2, EmptinessCheckTime: 19.5ms, AutomataDifference: 447089.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 12.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 580 SDtfs, 955 SDslu, 2606 SDs, 0 SdLazy, 1953 SolverSat, 305 SolverUnsat, 195 SolverUnknown, 0 SolverNotchecked, 387210.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 307 GetRequests, 197 SyntacticMatches, 12 SemanticMatches, 98 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 83602.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=161occurred in iteration=0, InterpolantAutomatonStates: 80, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 107.4ms AutomataMinimizationTime, 6 MinimizatonAttempts, 291 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 70.1ms SsaConstructionTime, 229.0ms SatisfiabilityAnalysisTime, 35749.7ms InterpolantComputationTime, 134 NumberOfCodeBlocks, 134 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 256 ConstructedInterpolants, 34 QuantifiedInterpolants, 1743 SizeOfPredicates, 32 NumberOfNonLiveVariables, 698 ConjunctsInSsa, 67 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 16/16 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-13 00:50:09,491 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c664c91a-612b-451e-99bc-38564112ded6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...