./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_2-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_2-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg --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 f002fb5adc832f6023a0c06b1c5ecdb23a860b09113c230254f6be0919311eb2 ................................................................................................................................... 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_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_2-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg --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 f002fb5adc832f6023a0c06b1c5ecdb23a860b09113c230254f6be0919311eb2 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 08:43:16,287 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 08:43:16,290 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 08:43:16,353 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 08:43:16,354 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 08:43:16,359 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 08:43:16,361 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 08:43:16,365 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 08:43:16,369 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 08:43:16,375 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 08:43:16,376 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 08:43:16,378 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 08:43:16,379 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 08:43:16,382 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 08:43:16,384 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 08:43:16,393 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 08:43:16,395 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 08:43:16,396 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 08:43:16,399 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 08:43:16,408 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 08:43:16,410 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 08:43:16,412 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 08:43:16,416 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 08:43:16,417 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 08:43:16,428 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 08:43:16,429 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 08:43:16,429 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 08:43:16,432 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 08:43:16,433 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 08:43:16,434 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 08:43:16,435 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 08:43:16,436 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 08:43:16,438 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 08:43:16,440 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 08:43:16,441 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 08:43:16,442 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 08:43:16,443 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 08:43:16,443 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 08:43:16,443 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 08:43:16,444 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 08:43:16,445 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 08:43:16,446 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-10-28 08:43:16,494 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 08:43:16,495 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 08:43:16,496 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 08:43:16,496 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 08:43:16,505 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 08:43:16,506 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 08:43:16,506 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 08:43:16,506 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 08:43:16,506 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 08:43:16,507 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 08:43:16,508 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 08:43:16,509 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 08:43:16,509 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 08:43:16,509 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 08:43:16,509 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 08:43:16,510 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 08:43:16,510 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 08:43:16,510 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 08:43:16,511 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 08:43:16,511 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 08:43:16,511 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 08:43:16,511 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 08:43:16,512 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 08:43:16,512 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 08:43:16,512 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 08:43:16,513 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 08:43:16,513 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 08:43:16,513 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 08:43:16,513 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 08:43:16,516 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_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f002fb5adc832f6023a0c06b1c5ecdb23a860b09113c230254f6be0919311eb2 [2021-10-28 08:43:16,848 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 08:43:16,884 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 08:43:16,887 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 08:43:16,889 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 08:43:16,890 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 08:43:16,891 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_2-1.i [2021-10-28 08:43:16,987 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/data/aa99dab82/95aa67f3137b40908b11cd7bf8a9a71c/FLAG6190c5f55 [2021-10-28 08:43:17,608 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 08:43:17,609 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/sv-benchmarks/c/ldv-memsafety/memleaks_test22_2-1.i [2021-10-28 08:43:17,637 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/data/aa99dab82/95aa67f3137b40908b11cd7bf8a9a71c/FLAG6190c5f55 [2021-10-28 08:43:17,848 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/data/aa99dab82/95aa67f3137b40908b11cd7bf8a9a71c [2021-10-28 08:43:17,852 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 08:43:17,854 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 08:43:17,856 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 08:43:17,856 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 08:43:17,860 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 08:43:17,861 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:43:17" (1/1) ... [2021-10-28 08:43:17,864 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@390d268d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:43:17, skipping insertion in model container [2021-10-28 08:43:17,864 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:43:17" (1/1) ... [2021-10-28 08:43:17,871 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 08:43:17,940 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 08:43:18,479 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:43:18,507 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) [2021-10-28 08:43:18,508 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3e9821bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:43:18, skipping insertion in model container [2021-10-28 08:43:18,508 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 08:43:18,509 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-10-28 08:43:18,512 INFO L168 Benchmark]: Toolchain (without parser) took 656.10 ms. Allocated memory is still 94.4 MB. Free memory was 57.3 MB in the beginning and 64.0 MB in the end (delta: -6.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 08:43:18,514 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 94.4 MB. Free memory was 66.3 MB in the beginning and 66.3 MB in the end (delta: 21.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:43:18,515 INFO L168 Benchmark]: CACSL2BoogieTranslator took 653.33 ms. Allocated memory is still 94.4 MB. Free memory was 57.1 MB in the beginning and 64.0 MB in the end (delta: -6.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 08:43:18,518 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 94.4 MB. Free memory was 66.3 MB in the beginning and 66.3 MB in the end (delta: 21.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 653.33 ms. Allocated memory is still 94.4 MB. Free memory was 57.1 MB in the beginning and 64.0 MB in the end (delta: -6.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 08:43:20,842 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 08:43:20,845 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 08:43:20,876 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 08:43:20,876 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 08:43:20,881 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 08:43:20,884 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 08:43:20,891 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 08:43:20,894 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 08:43:20,902 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 08:43:20,903 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 08:43:20,905 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 08:43:20,906 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 08:43:20,908 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 08:43:20,910 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 08:43:20,913 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 08:43:20,915 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 08:43:20,917 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 08:43:20,923 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 08:43:20,930 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 08:43:20,932 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 08:43:20,934 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 08:43:20,937 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 08:43:20,939 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 08:43:20,951 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 08:43:20,952 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 08:43:20,952 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 08:43:20,954 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 08:43:20,955 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 08:43:20,956 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 08:43:20,957 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 08:43:20,958 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 08:43:20,960 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 08:43:20,961 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 08:43:20,963 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 08:43:20,963 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 08:43:20,964 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 08:43:20,964 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 08:43:20,965 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 08:43:20,967 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 08:43:20,968 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 08:43:20,968 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-28 08:43:21,015 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 08:43:21,016 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 08:43:21,016 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 08:43:21,017 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 08:43:21,019 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 08:43:21,019 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 08:43:21,020 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 08:43:21,020 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 08:43:21,020 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 08:43:21,020 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 08:43:21,021 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 08:43:21,022 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 08:43:21,022 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 08:43:21,022 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 08:43:21,023 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 08:43:21,023 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 08:43:21,023 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 08:43:21,023 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 08:43:21,023 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-28 08:43:21,024 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-28 08:43:21,024 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 08:43:21,024 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 08:43:21,024 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 08:43:21,025 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 08:43:21,025 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 08:43:21,025 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 08:43:21,026 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 08:43:21,026 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 08:43:21,026 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-28 08:43:21,026 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-28 08:43:21,026 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 08:43:21,027 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-28 08:43:21,027 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_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f002fb5adc832f6023a0c06b1c5ecdb23a860b09113c230254f6be0919311eb2 [2021-10-28 08:43:21,449 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 08:43:21,481 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 08:43:21,484 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 08:43:21,486 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 08:43:21,487 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 08:43:21,488 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_2-1.i [2021-10-28 08:43:21,568 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/data/e70de6f2b/46caa64ef40441868bece20447964ae1/FLAG846e00454 [2021-10-28 08:43:22,272 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 08:43:22,272 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/sv-benchmarks/c/ldv-memsafety/memleaks_test22_2-1.i [2021-10-28 08:43:22,294 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/data/e70de6f2b/46caa64ef40441868bece20447964ae1/FLAG846e00454 [2021-10-28 08:43:22,594 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/data/e70de6f2b/46caa64ef40441868bece20447964ae1 [2021-10-28 08:43:22,597 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 08:43:22,599 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 08:43:22,600 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 08:43:22,600 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 08:43:22,604 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 08:43:22,605 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:43:22" (1/1) ... [2021-10-28 08:43:22,606 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@240870f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:43:22, skipping insertion in model container [2021-10-28 08:43:22,606 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:43:22" (1/1) ... [2021-10-28 08:43:22,614 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 08:43:22,686 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 08:43:23,196 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:43:23,222 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-28 08:43:23,235 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 08:43:23,291 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:43:23,299 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 08:43:23,355 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:43:23,423 INFO L208 MainTranslator]: Completed translation [2021-10-28 08:43:23,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:43:23 WrapperNode [2021-10-28 08:43:23,425 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 08:43:23,426 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 08:43:23,427 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 08:43:23,427 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 08:43:23,439 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:43:23" (1/1) ... [2021-10-28 08:43:23,439 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:43:23" (1/1) ... [2021-10-28 08:43:23,477 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:43:23" (1/1) ... [2021-10-28 08:43:23,478 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:43:23" (1/1) ... [2021-10-28 08:43:23,541 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:43:23" (1/1) ... [2021-10-28 08:43:23,547 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:43:23" (1/1) ... [2021-10-28 08:43:23,553 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:43:23" (1/1) ... [2021-10-28 08:43:23,564 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 08:43:23,565 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 08:43:23,565 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 08:43:23,565 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 08:43:23,566 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:43:23" (1/1) ... [2021-10-28 08:43:23,579 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 08:43:23,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:43:23,610 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 08:43:23,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 08:43:23,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-28 08:43:23,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 08:43:23,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-10-28 08:43:23,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-10-28 08:43:23,663 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-10-28 08:43:23,663 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-10-28 08:43:23,663 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-10-28 08:43:23,663 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-10-28 08:43:23,664 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-10-28 08:43:23,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-10-28 08:43:23,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-10-28 08:43:23,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-10-28 08:43:23,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-10-28 08:43:23,665 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-10-28 08:43:23,665 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-10-28 08:43:23,665 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-10-28 08:43:23,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-10-28 08:43:23,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-10-28 08:43:23,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-10-28 08:43:23,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-10-28 08:43:23,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-10-28 08:43:23,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-10-28 08:43:23,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-10-28 08:43:23,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-10-28 08:43:23,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-10-28 08:43:23,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-10-28 08:43:23,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-10-28 08:43:23,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-10-28 08:43:23,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-10-28 08:43:23,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-10-28 08:43:23,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-10-28 08:43:23,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-10-28 08:43:23,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-10-28 08:43:23,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-10-28 08:43:23,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-10-28 08:43:23,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-10-28 08:43:23,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-10-28 08:43:23,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-10-28 08:43:23,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-10-28 08:43:23,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-10-28 08:43:23,670 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-10-28 08:43:23,670 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-10-28 08:43:23,670 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-10-28 08:43:23,671 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-28 08:43:23,671 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-10-28 08:43:23,671 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-10-28 08:43:23,671 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-10-28 08:43:23,671 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-10-28 08:43:23,672 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-10-28 08:43:23,672 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-10-28 08:43:23,672 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-10-28 08:43:23,672 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-10-28 08:43:23,672 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-10-28 08:43:23,673 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-10-28 08:43:23,673 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-10-28 08:43:23,673 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-10-28 08:43:23,673 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-10-28 08:43:23,673 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-10-28 08:43:23,674 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-10-28 08:43:23,674 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-10-28 08:43:23,674 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-10-28 08:43:23,674 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-10-28 08:43:23,674 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-10-28 08:43:23,675 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-10-28 08:43:23,675 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-10-28 08:43:23,675 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-10-28 08:43:23,675 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-10-28 08:43:23,675 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-10-28 08:43:23,676 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-10-28 08:43:23,676 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-10-28 08:43:23,676 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-10-28 08:43:23,676 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-10-28 08:43:23,676 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-10-28 08:43:23,676 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-10-28 08:43:23,677 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-10-28 08:43:23,677 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-10-28 08:43:23,677 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-10-28 08:43:23,677 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-10-28 08:43:23,677 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-10-28 08:43:23,678 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-10-28 08:43:23,678 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-10-28 08:43:23,678 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-10-28 08:43:23,678 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-10-28 08:43:23,678 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-10-28 08:43:23,679 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-10-28 08:43:23,679 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-10-28 08:43:23,679 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-10-28 08:43:23,679 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-10-28 08:43:23,679 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-10-28 08:43:23,679 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-10-28 08:43:23,680 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-10-28 08:43:23,680 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-10-28 08:43:23,680 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-10-28 08:43:23,680 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-10-28 08:43:23,680 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-10-28 08:43:23,681 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-10-28 08:43:23,681 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-10-28 08:43:23,681 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-10-28 08:43:23,681 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-10-28 08:43:23,681 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-10-28 08:43:23,681 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-10-28 08:43:23,682 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-10-28 08:43:23,682 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-10-28 08:43:23,682 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-10-28 08:43:23,682 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-10-28 08:43:23,682 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-10-28 08:43:23,683 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-10-28 08:43:23,683 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-10-28 08:43:23,683 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-10-28 08:43:23,683 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-10-28 08:43:23,683 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-28 08:43:23,684 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-10-28 08:43:23,684 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-10-28 08:43:23,684 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-10-28 08:43:23,684 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-10-28 08:43:23,684 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-10-28 08:43:23,685 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-10-28 08:43:23,685 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-10-28 08:43:23,685 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-10-28 08:43:23,685 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-10-28 08:43:23,685 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-10-28 08:43:23,686 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-10-28 08:43:23,686 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-10-28 08:43:23,686 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-10-28 08:43:23,686 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-10-28 08:43:23,686 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-10-28 08:43:23,687 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-10-28 08:43:23,687 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-10-28 08:43:23,687 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-10-28 08:43:23,687 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-10-28 08:43:23,687 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-10-28 08:43:23,688 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-10-28 08:43:23,688 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-10-28 08:43:23,688 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-10-28 08:43:23,688 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-10-28 08:43:23,688 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-10-28 08:43:23,689 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-10-28 08:43:23,689 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-10-28 08:43:23,689 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-10-28 08:43:23,689 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-10-28 08:43:23,689 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-10-28 08:43:23,690 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-10-28 08:43:23,690 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-10-28 08:43:23,690 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-10-28 08:43:23,690 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-10-28 08:43:23,690 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-10-28 08:43:23,690 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-10-28 08:43:23,691 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-10-28 08:43:23,691 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-10-28 08:43:23,691 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-10-28 08:43:23,691 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-10-28 08:43:23,691 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-10-28 08:43:23,692 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-10-28 08:43:23,692 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-10-28 08:43:23,692 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-10-28 08:43:23,692 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-28 08:43:23,692 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-10-28 08:43:23,692 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-10-28 08:43:23,693 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-10-28 08:43:23,693 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-10-28 08:43:23,693 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-10-28 08:43:23,693 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-28 08:43:23,693 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-10-28 08:43:23,694 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-10-28 08:43:23,694 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-10-28 08:43:23,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-28 08:43:23,694 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-10-28 08:43:23,694 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-10-28 08:43:23,694 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-10-28 08:43:23,695 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-28 08:43:23,695 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-10-28 08:43:23,695 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-10-28 08:43:23,695 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-10-28 08:43:23,695 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-10-28 08:43:23,696 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-10-28 08:43:23,696 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-10-28 08:43:23,696 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 08:43:23,696 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-10-28 08:43:23,696 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-10-28 08:43:23,697 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-10-28 08:43:23,697 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-10-28 08:43:23,697 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-10-28 08:43:23,697 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-28 08:43:23,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-28 08:43:23,697 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-10-28 08:43:23,698 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-10-28 08:43:23,698 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-10-28 08:43:23,698 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-10-28 08:43:23,698 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-10-28 08:43:23,698 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-10-28 08:43:23,698 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-10-28 08:43:23,699 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-10-28 08:43:23,699 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-10-28 08:43:23,699 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-10-28 08:43:23,699 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-10-28 08:43:23,699 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-10-28 08:43:23,700 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-10-28 08:43:23,700 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-10-28 08:43:23,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-10-28 08:43:23,700 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-10-28 08:43:23,700 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-10-28 08:43:23,700 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-10-28 08:43:23,701 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-28 08:43:23,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-28 08:43:23,701 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 08:43:23,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-28 08:43:23,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 08:43:23,702 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-10-28 08:43:23,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-10-28 08:43:23,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-10-28 08:43:23,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-10-28 08:43:23,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-10-28 08:43:24,352 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 08:43:24,802 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 08:43:25,207 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 08:43:25,207 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-10-28 08:43:25,213 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:43:25 BoogieIcfgContainer [2021-10-28 08:43:25,213 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 08:43:25,216 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 08:43:25,217 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 08:43:25,220 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 08:43:25,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 08:43:22" (1/3) ... [2021-10-28 08:43:25,221 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45c3751f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:43:25, skipping insertion in model container [2021-10-28 08:43:25,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:43:23" (2/3) ... [2021-10-28 08:43:25,223 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45c3751f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:43:25, skipping insertion in model container [2021-10-28 08:43:25,224 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:43:25" (3/3) ... [2021-10-28 08:43:25,225 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test22_2-1.i [2021-10-28 08:43:25,232 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 08:43:25,233 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 71 error locations. [2021-10-28 08:43:25,292 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 08:43:25,297 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 08:43:25,298 INFO L340 AbstractCegarLoop]: Starting to check reachability of 71 error locations. [2021-10-28 08:43:25,314 INFO L276 IsEmpty]: Start isEmpty. Operand has 92 states, 51 states have (on average 1.4705882352941178) internal successors, (75), 69 states have internal predecessors, (75), 12 states have call successors, (12), 11 states have call predecessors, (12), 11 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2021-10-28 08:43:25,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-28 08:43:25,321 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:43:25,322 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:43:25,322 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_kobject_createErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 08:43:25,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:43:25,328 INFO L85 PathProgramCache]: Analyzing trace with hash -896940051, now seen corresponding path program 1 times [2021-10-28 08:43:25,339 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:43:25,340 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1004235467] [2021-10-28 08:43:25,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:43:25,341 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:43:25,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:43:25,347 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:43:25,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-28 08:43:25,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:43:25,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 08:43:25,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:43:25,674 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 [2021-10-28 08:43:25,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:43:25,747 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:43:25,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:43:25,886 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:43:25,886 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1004235467] [2021-10-28 08:43:25,887 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1004235467] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 08:43:25,888 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:43:25,888 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-28 08:43:25,890 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410951195] [2021-10-28 08:43:25,896 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 08:43:25,897 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:43:25,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 08:43:25,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:43:25,926 INFO L87 Difference]: Start difference. First operand has 92 states, 51 states have (on average 1.4705882352941178) internal successors, (75), 69 states have internal predecessors, (75), 12 states have call successors, (12), 11 states have call predecessors, (12), 11 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 08:43:26,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:43:26,161 INFO L93 Difference]: Finished difference Result 74 states and 81 transitions. [2021-10-28 08:43:26,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 08:43:26,163 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2021-10-28 08:43:26,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:43:26,174 INFO L225 Difference]: With dead ends: 74 [2021-10-28 08:43:26,175 INFO L226 Difference]: Without dead ends: 71 [2021-10-28 08:43:26,176 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 27 SyntacticMatches, 3 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:43:26,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2021-10-28 08:43:26,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 65. [2021-10-28 08:43:26,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 37 states have (on average 1.3513513513513513) internal successors, (50), 46 states have internal predecessors, (50), 11 states have call successors, (11), 10 states have call predecessors, (11), 10 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2021-10-28 08:43:26,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 72 transitions. [2021-10-28 08:43:26,227 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 72 transitions. Word has length 17 [2021-10-28 08:43:26,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:43:26,228 INFO L470 AbstractCegarLoop]: Abstraction has 65 states and 72 transitions. [2021-10-28 08:43:26,228 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 08:43:26,228 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 72 transitions. [2021-10-28 08:43:26,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-28 08:43:26,231 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:43:26,231 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:43:26,249 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-28 08:43:26,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:43:26,439 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_kobject_createErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 08:43:26,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:43:26,440 INFO L85 PathProgramCache]: Analyzing trace with hash -896940050, now seen corresponding path program 1 times [2021-10-28 08:43:26,441 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:43:26,441 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1685907018] [2021-10-28 08:43:26,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:43:26,441 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:43:26,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:43:26,444 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:43:26,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-28 08:43:26,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:43:26,624 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-28 08:43:26,626 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:43:26,690 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 [2021-10-28 08:43:26,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:43:26,832 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:43:27,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:43:27,269 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:43:27,269 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1685907018] [2021-10-28 08:43:27,269 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1685907018] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 08:43:27,269 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:43:27,269 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-10-28 08:43:27,270 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645347256] [2021-10-28 08:43:27,271 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 08:43:27,271 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:43:27,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 08:43:27,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-10-28 08:43:27,272 INFO L87 Difference]: Start difference. First operand 65 states and 72 transitions. Second operand has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 8 states have internal predecessors, (16), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 08:43:27,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:43:27,774 INFO L93 Difference]: Finished difference Result 70 states and 77 transitions. [2021-10-28 08:43:27,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 08:43:27,776 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 8 states have internal predecessors, (16), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 17 [2021-10-28 08:43:27,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:43:27,777 INFO L225 Difference]: With dead ends: 70 [2021-10-28 08:43:27,777 INFO L226 Difference]: Without dead ends: 70 [2021-10-28 08:43:27,778 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-10-28 08:43:27,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2021-10-28 08:43:27,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 65. [2021-10-28 08:43:27,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 36 states have (on average 1.3611111111111112) internal successors, (49), 46 states have internal predecessors, (49), 11 states have call successors, (11), 10 states have call predecessors, (11), 10 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2021-10-28 08:43:27,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 71 transitions. [2021-10-28 08:43:27,788 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 71 transitions. Word has length 17 [2021-10-28 08:43:27,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:43:27,789 INFO L470 AbstractCegarLoop]: Abstraction has 65 states and 71 transitions. [2021-10-28 08:43:27,789 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 8 states have internal predecessors, (16), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 08:43:27,789 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 71 transitions. [2021-10-28 08:43:27,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-28 08:43:27,790 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:43:27,790 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:43:27,806 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-28 08:43:28,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:43:28,002 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_kobject_createErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 08:43:28,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:43:28,003 INFO L85 PathProgramCache]: Analyzing trace with hash -868310900, now seen corresponding path program 1 times [2021-10-28 08:43:28,003 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:43:28,003 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1862811675] [2021-10-28 08:43:28,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:43:28,003 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:43:28,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:43:28,004 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:43:28,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-28 08:43:28,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:43:28,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 08:43:28,184 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:43:28,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:43:28,297 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:43:28,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:43:28,405 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:43:28,405 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1862811675] [2021-10-28 08:43:28,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1862811675] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 08:43:28,406 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:43:28,407 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-28 08:43:28,407 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665600370] [2021-10-28 08:43:28,408 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 08:43:28,408 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:43:28,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 08:43:28,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:43:28,413 INFO L87 Difference]: Start difference. First operand 65 states and 71 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 08:43:28,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:43:28,438 INFO L93 Difference]: Finished difference Result 64 states and 68 transitions. [2021-10-28 08:43:28,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 08:43:28,439 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2021-10-28 08:43:28,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:43:28,443 INFO L225 Difference]: With dead ends: 64 [2021-10-28 08:43:28,443 INFO L226 Difference]: Without dead ends: 64 [2021-10-28 08:43:28,443 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:43:28,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-10-28 08:43:28,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 62. [2021-10-28 08:43:28,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 35 states have (on average 1.3142857142857143) internal successors, (46), 43 states have internal predecessors, (46), 10 states have call successors, (10), 10 states have call predecessors, (10), 10 states have return successors, (10), 10 states have call predecessors, (10), 9 states have call successors, (10) [2021-10-28 08:43:28,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 66 transitions. [2021-10-28 08:43:28,470 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 66 transitions. Word has length 17 [2021-10-28 08:43:28,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:43:28,471 INFO L470 AbstractCegarLoop]: Abstraction has 62 states and 66 transitions. [2021-10-28 08:43:28,471 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 08:43:28,471 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 66 transitions. [2021-10-28 08:43:28,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-28 08:43:28,475 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:43:28,475 INFO L513 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] [2021-10-28 08:43:28,495 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-28 08:43:28,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:43:28,687 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 08:43:28,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:43:28,689 INFO L85 PathProgramCache]: Analyzing trace with hash 2008128002, now seen corresponding path program 1 times [2021-10-28 08:43:28,690 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:43:28,691 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1805386307] [2021-10-28 08:43:28,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:43:28,691 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:43:28,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:43:28,693 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:43:28,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-28 08:43:28,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:43:28,887 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 08:43:28,890 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:43:28,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:43:28,971 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:43:29,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:43:29,098 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:43:29,098 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1805386307] [2021-10-28 08:43:29,098 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1805386307] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 08:43:29,098 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:43:29,099 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-28 08:43:29,099 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814114127] [2021-10-28 08:43:29,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 08:43:29,099 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:43:29,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 08:43:29,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:43:29,100 INFO L87 Difference]: Start difference. First operand 62 states and 66 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 1 states have call successors, (4) [2021-10-28 08:43:29,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:43:29,119 INFO L93 Difference]: Finished difference Result 64 states and 67 transitions. [2021-10-28 08:43:29,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 08:43:29,120 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 1 states have call successors, (4) Word has length 22 [2021-10-28 08:43:29,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:43:29,121 INFO L225 Difference]: With dead ends: 64 [2021-10-28 08:43:29,121 INFO L226 Difference]: Without dead ends: 64 [2021-10-28 08:43:29,122 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:43:29,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-10-28 08:43:29,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 62. [2021-10-28 08:43:29,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 35 states have (on average 1.2857142857142858) internal successors, (45), 43 states have internal predecessors, (45), 10 states have call successors, (10), 10 states have call predecessors, (10), 10 states have return successors, (10), 10 states have call predecessors, (10), 9 states have call successors, (10) [2021-10-28 08:43:29,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 65 transitions. [2021-10-28 08:43:29,127 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 65 transitions. Word has length 22 [2021-10-28 08:43:29,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:43:29,128 INFO L470 AbstractCegarLoop]: Abstraction has 62 states and 65 transitions. [2021-10-28 08:43:29,128 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 1 states have call successors, (4) [2021-10-28 08:43:29,128 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 65 transitions. [2021-10-28 08:43:29,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-28 08:43:29,129 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:43:29,129 INFO L513 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] [2021-10-28 08:43:29,141 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-28 08:43:29,341 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:43:29,341 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 08:43:29,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:43:29,342 INFO L85 PathProgramCache]: Analyzing trace with hash 211176643, now seen corresponding path program 1 times [2021-10-28 08:43:29,342 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:43:29,343 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [948338056] [2021-10-28 08:43:29,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:43:29,343 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:43:29,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:43:29,344 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:43:29,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-28 08:43:29,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:43:29,526 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 08:43:29,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:43:29,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:43:29,622 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:43:29,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:43:29,805 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:43:29,806 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [948338056] [2021-10-28 08:43:29,806 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [948338056] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 08:43:29,806 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:43:29,806 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-28 08:43:29,806 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854321691] [2021-10-28 08:43:29,807 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:43:29,807 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:43:29,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:43:29,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:43:29,808 INFO L87 Difference]: Start difference. First operand 62 states and 65 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-28 08:43:29,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:43:29,904 INFO L93 Difference]: Finished difference Result 68 states and 70 transitions. [2021-10-28 08:43:29,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:43:29,905 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 22 [2021-10-28 08:43:29,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:43:29,906 INFO L225 Difference]: With dead ends: 68 [2021-10-28 08:43:29,906 INFO L226 Difference]: Without dead ends: 58 [2021-10-28 08:43:29,906 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:43:29,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2021-10-28 08:43:29,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2021-10-28 08:43:29,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 32 states have (on average 1.28125) internal successors, (41), 40 states have internal predecessors, (41), 10 states have call successors, (10), 10 states have call predecessors, (10), 9 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2021-10-28 08:43:29,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 60 transitions. [2021-10-28 08:43:29,911 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 60 transitions. Word has length 22 [2021-10-28 08:43:29,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:43:29,912 INFO L470 AbstractCegarLoop]: Abstraction has 58 states and 60 transitions. [2021-10-28 08:43:29,912 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-28 08:43:29,912 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 60 transitions. [2021-10-28 08:43:29,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-28 08:43:29,913 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:43:29,914 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:43:29,922 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-28 08:43:30,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:43:30,120 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_kref_initErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 08:43:30,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:43:30,120 INFO L85 PathProgramCache]: Analyzing trace with hash -45428445, now seen corresponding path program 1 times [2021-10-28 08:43:30,120 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:43:30,120 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2079531639] [2021-10-28 08:43:30,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:43:30,121 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:43:30,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:43:30,121 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:43:30,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-28 08:43:30,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:43:30,353 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-28 08:43:30,355 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:43:30,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:43:30,463 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:43:30,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:43:30,611 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:43:30,611 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2079531639] [2021-10-28 08:43:30,611 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2079531639] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 08:43:30,611 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:43:30,612 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-28 08:43:30,612 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100429542] [2021-10-28 08:43:30,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 08:43:30,612 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:43:30,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 08:43:30,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-28 08:43:30,613 INFO L87 Difference]: Start difference. First operand 58 states and 60 transitions. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-10-28 08:43:30,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:43:30,653 INFO L93 Difference]: Finished difference Result 64 states and 66 transitions. [2021-10-28 08:43:30,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 08:43:30,654 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 32 [2021-10-28 08:43:30,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:43:30,655 INFO L225 Difference]: With dead ends: 64 [2021-10-28 08:43:30,655 INFO L226 Difference]: Without dead ends: 60 [2021-10-28 08:43:30,656 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2021-10-28 08:43:30,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2021-10-28 08:43:30,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2021-10-28 08:43:30,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 34 states have (on average 1.2647058823529411) internal successors, (43), 42 states have internal predecessors, (43), 10 states have call successors, (10), 10 states have call predecessors, (10), 9 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2021-10-28 08:43:30,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 62 transitions. [2021-10-28 08:43:30,661 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 62 transitions. Word has length 32 [2021-10-28 08:43:30,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:43:30,661 INFO L470 AbstractCegarLoop]: Abstraction has 60 states and 62 transitions. [2021-10-28 08:43:30,661 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-10-28 08:43:30,662 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 62 transitions. [2021-10-28 08:43:30,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-28 08:43:30,663 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:43:30,663 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:43:30,679 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-28 08:43:30,880 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:43:30,880 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_kref_initErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 08:43:30,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:43:30,880 INFO L85 PathProgramCache]: Analyzing trace with hash -792080061, now seen corresponding path program 1 times [2021-10-28 08:43:30,881 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:43:30,881 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [66555474] [2021-10-28 08:43:30,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:43:30,881 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:43:30,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:43:30,882 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:43:30,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-28 08:43:31,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:43:31,090 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 08:43:31,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:43:31,230 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:43:31,230 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:43:31,495 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:43:31,495 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:43:31,495 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [66555474] [2021-10-28 08:43:31,496 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [66555474] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-28 08:43:31,496 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:43:31,496 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-10-28 08:43:31,496 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53965202] [2021-10-28 08:43:31,497 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 08:43:31,497 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:43:31,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 08:43:31,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-10-28 08:43:31,498 INFO L87 Difference]: Start difference. First operand 60 states and 62 transitions. Second operand has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-10-28 08:43:31,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:43:31,742 INFO L93 Difference]: Finished difference Result 68 states and 72 transitions. [2021-10-28 08:43:31,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 08:43:31,750 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 34 [2021-10-28 08:43:31,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:43:31,751 INFO L225 Difference]: With dead ends: 68 [2021-10-28 08:43:31,751 INFO L226 Difference]: Without dead ends: 64 [2021-10-28 08:43:31,752 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2021-10-28 08:43:31,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-10-28 08:43:31,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2021-10-28 08:43:31,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 38 states have (on average 1.236842105263158) internal successors, (47), 46 states have internal predecessors, (47), 10 states have call successors, (10), 10 states have call predecessors, (10), 9 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2021-10-28 08:43:31,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 66 transitions. [2021-10-28 08:43:31,756 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 66 transitions. Word has length 34 [2021-10-28 08:43:31,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:43:31,756 INFO L470 AbstractCegarLoop]: Abstraction has 64 states and 66 transitions. [2021-10-28 08:43:31,756 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-10-28 08:43:31,756 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 66 transitions. [2021-10-28 08:43:31,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-10-28 08:43:31,758 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:43:31,758 INFO L513 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:43:31,769 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-10-28 08:43:31,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:43:31,969 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_kref_initErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 08:43:31,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:43:31,969 INFO L85 PathProgramCache]: Analyzing trace with hash -1102366333, now seen corresponding path program 2 times [2021-10-28 08:43:31,969 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:43:31,970 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [828504067] [2021-10-28 08:43:31,970 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 08:43:31,970 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:43:31,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:43:31,971 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:43:31,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-28 08:43:32,184 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-28 08:43:32,185 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:43:32,189 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-28 08:43:32,192 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:43:32,231 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 [2021-10-28 08:43:32,569 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-10-28 08:43:32,569 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:43:32,828 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-10-28 08:43:32,828 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:43:32,829 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [828504067] [2021-10-28 08:43:32,829 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [828504067] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 08:43:32,829 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:43:32,829 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 11 [2021-10-28 08:43:32,829 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431052048] [2021-10-28 08:43:32,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-28 08:43:32,830 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:43:32,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-28 08:43:32,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-10-28 08:43:32,831 INFO L87 Difference]: Start difference. First operand 64 states and 66 transitions. Second operand has 12 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 8 states have internal predecessors, (26), 4 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-28 08:43:33,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:43:33,389 INFO L93 Difference]: Finished difference Result 63 states and 65 transitions. [2021-10-28 08:43:33,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 08:43:33,390 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 8 states have internal predecessors, (26), 4 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 38 [2021-10-28 08:43:33,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:43:33,392 INFO L225 Difference]: With dead ends: 63 [2021-10-28 08:43:33,392 INFO L226 Difference]: Without dead ends: 63 [2021-10-28 08:43:33,393 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 55 SyntacticMatches, 10 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2021-10-28 08:43:33,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2021-10-28 08:43:33,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2021-10-28 08:43:33,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 38 states have (on average 1.2105263157894737) internal successors, (46), 45 states have internal predecessors, (46), 10 states have call successors, (10), 10 states have call predecessors, (10), 9 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2021-10-28 08:43:33,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 65 transitions. [2021-10-28 08:43:33,398 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 65 transitions. Word has length 38 [2021-10-28 08:43:33,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:43:33,398 INFO L470 AbstractCegarLoop]: Abstraction has 63 states and 65 transitions. [2021-10-28 08:43:33,398 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 8 states have internal predecessors, (26), 4 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-28 08:43:33,398 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 65 transitions. [2021-10-28 08:43:33,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-10-28 08:43:33,400 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:43:33,400 INFO L513 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:43:33,411 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-28 08:43:33,607 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:43:33,607 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_kref_initErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 08:43:33,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:43:33,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1102366332, now seen corresponding path program 1 times [2021-10-28 08:43:33,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:43:33,609 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1871271347] [2021-10-28 08:43:33,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:43:33,609 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:43:33,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:43:33,610 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:43:33,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-28 08:43:33,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:43:33,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-28 08:43:33,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:43:34,029 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:43:34,029 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:43:34,498 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:43:34,498 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:43:34,498 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1871271347] [2021-10-28 08:43:34,499 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1871271347] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-28 08:43:34,499 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:43:34,499 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2021-10-28 08:43:34,499 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537894380] [2021-10-28 08:43:34,500 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-10-28 08:43:34,500 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:43:34,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-28 08:43:34,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2021-10-28 08:43:34,501 INFO L87 Difference]: Start difference. First operand 63 states and 65 transitions. Second operand has 18 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 18 states have internal predecessors, (35), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-10-28 08:43:35,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:43:35,327 INFO L93 Difference]: Finished difference Result 75 states and 83 transitions. [2021-10-28 08:43:35,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-28 08:43:35,328 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 18 states have internal predecessors, (35), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 38 [2021-10-28 08:43:35,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:43:35,329 INFO L225 Difference]: With dead ends: 75 [2021-10-28 08:43:35,329 INFO L226 Difference]: Without dead ends: 71 [2021-10-28 08:43:35,330 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=223, Invalid=377, Unknown=0, NotChecked=0, Total=600 [2021-10-28 08:43:35,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2021-10-28 08:43:35,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2021-10-28 08:43:35,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 46 states have (on average 1.173913043478261) internal successors, (54), 53 states have internal predecessors, (54), 10 states have call successors, (10), 10 states have call predecessors, (10), 9 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2021-10-28 08:43:35,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 73 transitions. [2021-10-28 08:43:35,335 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 73 transitions. Word has length 38 [2021-10-28 08:43:35,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:43:35,335 INFO L470 AbstractCegarLoop]: Abstraction has 71 states and 73 transitions. [2021-10-28 08:43:35,335 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 18 states have internal predecessors, (35), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-10-28 08:43:35,335 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 73 transitions. [2021-10-28 08:43:35,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-10-28 08:43:35,337 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:43:35,337 INFO L513 BasicCegarLoop]: trace histogram [14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:43:35,355 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-28 08:43:35,555 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:43:35,555 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_kref_initErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 08:43:35,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:43:35,556 INFO L85 PathProgramCache]: Analyzing trace with hash 2064886276, now seen corresponding path program 2 times [2021-10-28 08:43:35,556 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:43:35,557 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2006310133] [2021-10-28 08:43:35,557 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 08:43:35,557 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:43:35,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:43:35,558 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:43:35,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-28 08:43:35,830 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-28 08:43:35,830 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:43:35,835 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-28 08:43:35,838 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:43:35,882 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 [2021-10-28 08:43:36,460 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-10-28 08:43:36,461 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:43:37,693 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-10-28 08:43:37,693 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:43:37,693 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2006310133] [2021-10-28 08:43:37,693 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2006310133] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 08:43:37,694 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:43:37,694 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 11] imperfect sequences [] total 22 [2021-10-28 08:43:37,694 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080359573] [2021-10-28 08:43:37,695 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-28 08:43:37,695 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:43:37,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-28 08:43:37,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2021-10-28 08:43:37,698 INFO L87 Difference]: Start difference. First operand 71 states and 73 transitions. Second operand has 23 states, 22 states have (on average 1.7272727272727273) internal successors, (38), 15 states have internal predecessors, (38), 7 states have call successors, (13), 8 states have call predecessors, (13), 4 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2021-10-28 08:43:39,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:43:39,002 INFO L93 Difference]: Finished difference Result 70 states and 72 transitions. [2021-10-28 08:43:39,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-28 08:43:39,003 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 1.7272727272727273) internal successors, (38), 15 states have internal predecessors, (38), 7 states have call successors, (13), 8 states have call predecessors, (13), 4 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) Word has length 46 [2021-10-28 08:43:39,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:43:39,004 INFO L225 Difference]: With dead ends: 70 [2021-10-28 08:43:39,004 INFO L226 Difference]: Without dead ends: 70 [2021-10-28 08:43:39,005 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 69 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=88, Invalid=614, Unknown=0, NotChecked=0, Total=702 [2021-10-28 08:43:39,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2021-10-28 08:43:39,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2021-10-28 08:43:39,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 46 states have (on average 1.1521739130434783) internal successors, (53), 52 states have internal predecessors, (53), 10 states have call successors, (10), 10 states have call predecessors, (10), 9 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2021-10-28 08:43:39,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 72 transitions. [2021-10-28 08:43:39,010 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 72 transitions. Word has length 46 [2021-10-28 08:43:39,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:43:39,010 INFO L470 AbstractCegarLoop]: Abstraction has 70 states and 72 transitions. [2021-10-28 08:43:39,011 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 1.7272727272727273) internal successors, (38), 15 states have internal predecessors, (38), 7 states have call successors, (13), 8 states have call predecessors, (13), 4 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2021-10-28 08:43:39,011 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 72 transitions. [2021-10-28 08:43:39,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-10-28 08:43:39,013 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:43:39,013 INFO L513 BasicCegarLoop]: trace histogram [14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:43:39,037 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-28 08:43:39,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:43:39,236 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 08:43:39,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:43:39,237 INFO L85 PathProgramCache]: Analyzing trace with hash -1743926468, now seen corresponding path program 1 times [2021-10-28 08:43:39,237 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:43:39,237 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [527527986] [2021-10-28 08:43:39,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:43:39,238 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:43:39,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:43:39,239 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:43:39,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-28 08:43:39,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:43:39,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-28 08:43:39,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:43:39,969 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:43:39,970 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:43:41,179 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:43:41,180 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:43:41,180 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [527527986] [2021-10-28 08:43:41,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [527527986] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-28 08:43:41,180 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:43:41,180 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 34 [2021-10-28 08:43:41,181 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367965502] [2021-10-28 08:43:41,181 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-10-28 08:43:41,181 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:43:41,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-10-28 08:43:41,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=230, Invalid=892, Unknown=0, NotChecked=0, Total=1122 [2021-10-28 08:43:41,183 INFO L87 Difference]: Start difference. First operand 70 states and 72 transitions. Second operand has 34 states, 34 states have (on average 1.6764705882352942) internal successors, (57), 34 states have internal predecessors, (57), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-10-28 08:43:42,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:43:42,037 INFO L93 Difference]: Finished difference Result 76 states and 78 transitions. [2021-10-28 08:43:42,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-28 08:43:42,038 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 1.6764705882352942) internal successors, (57), 34 states have internal predecessors, (57), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 51 [2021-10-28 08:43:42,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:43:42,039 INFO L225 Difference]: With dead ends: 76 [2021-10-28 08:43:42,039 INFO L226 Difference]: Without dead ends: 72 [2021-10-28 08:43:42,040 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=250, Invalid=940, Unknown=0, NotChecked=0, Total=1190 [2021-10-28 08:43:42,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2021-10-28 08:43:42,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2021-10-28 08:43:42,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 48 states have (on average 1.1458333333333333) internal successors, (55), 54 states have internal predecessors, (55), 10 states have call successors, (10), 10 states have call predecessors, (10), 9 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2021-10-28 08:43:42,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 74 transitions. [2021-10-28 08:43:42,046 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 74 transitions. Word has length 51 [2021-10-28 08:43:42,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:43:42,046 INFO L470 AbstractCegarLoop]: Abstraction has 72 states and 74 transitions. [2021-10-28 08:43:42,046 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 1.6764705882352942) internal successors, (57), 34 states have internal predecessors, (57), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-10-28 08:43:42,047 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 74 transitions. [2021-10-28 08:43:42,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-28 08:43:42,048 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:43:42,048 INFO L513 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:43:42,074 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-10-28 08:43:42,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:43:42,274 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 08:43:42,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:43:42,275 INFO L85 PathProgramCache]: Analyzing trace with hash 845780764, now seen corresponding path program 2 times [2021-10-28 08:43:42,276 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:43:42,276 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1313052253] [2021-10-28 08:43:42,276 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 08:43:42,276 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:43:42,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:43:42,278 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:43:42,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-10-28 08:43:42,656 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-28 08:43:42,656 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:43:42,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-28 08:43:42,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:43:42,687 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 [2021-10-28 08:43:43,026 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-28 08:43:43,027 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:43:43,239 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-28 08:43:43,239 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:43:43,240 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1313052253] [2021-10-28 08:43:43,240 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1313052253] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 08:43:43,240 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:43:43,240 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 11 [2021-10-28 08:43:43,240 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129313337] [2021-10-28 08:43:43,241 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-28 08:43:43,241 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:43:43,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-28 08:43:43,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-10-28 08:43:43,241 INFO L87 Difference]: Start difference. First operand 72 states and 74 transitions. Second operand has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 8 states have internal predecessors, (32), 4 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2021-10-28 08:43:43,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:43:43,793 INFO L93 Difference]: Finished difference Result 70 states and 72 transitions. [2021-10-28 08:43:43,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 08:43:43,794 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 8 states have internal predecessors, (32), 4 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 53 [2021-10-28 08:43:43,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:43:43,796 INFO L225 Difference]: With dead ends: 70 [2021-10-28 08:43:43,796 INFO L226 Difference]: Without dead ends: 70 [2021-10-28 08:43:43,796 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 84 SyntacticMatches, 11 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2021-10-28 08:43:43,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2021-10-28 08:43:43,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2021-10-28 08:43:43,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 48 states have (on average 1.1041666666666667) internal successors, (53), 52 states have internal predecessors, (53), 10 states have call successors, (10), 10 states have call predecessors, (10), 9 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2021-10-28 08:43:43,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 72 transitions. [2021-10-28 08:43:43,801 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 72 transitions. Word has length 53 [2021-10-28 08:43:43,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:43:43,802 INFO L470 AbstractCegarLoop]: Abstraction has 70 states and 72 transitions. [2021-10-28 08:43:43,802 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 8 states have internal predecessors, (32), 4 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2021-10-28 08:43:43,802 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 72 transitions. [2021-10-28 08:43:43,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-28 08:43:43,806 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:43:43,806 INFO L513 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:43:43,820 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-10-28 08:43:44,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:43:44,007 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 08:43:44,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:43:44,007 INFO L85 PathProgramCache]: Analyzing trace with hash 845780765, now seen corresponding path program 1 times [2021-10-28 08:43:44,008 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:43:44,008 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1111925780] [2021-10-28 08:43:44,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:43:44,008 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:43:44,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:43:44,009 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:43:44,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-10-28 08:43:44,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:43:44,447 INFO L263 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-28 08:43:44,450 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:43:44,488 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 [2021-10-28 08:43:45,004 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-28 08:43:45,004 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:43:46,274 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-28 08:43:46,274 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:43:46,275 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1111925780] [2021-10-28 08:43:46,275 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1111925780] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 08:43:46,275 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:43:46,275 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 11] imperfect sequences [] total 22 [2021-10-28 08:43:46,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768868024] [2021-10-28 08:43:46,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-28 08:43:46,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:43:46,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-28 08:43:46,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2021-10-28 08:43:46,277 INFO L87 Difference]: Start difference. First operand 70 states and 72 transitions. Second operand has 23 states, 22 states have (on average 2.0) internal successors, (44), 15 states have internal predecessors, (44), 7 states have call successors, (15), 8 states have call predecessors, (15), 4 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) [2021-10-28 08:43:47,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:43:47,631 INFO L93 Difference]: Finished difference Result 68 states and 70 transitions. [2021-10-28 08:43:47,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-28 08:43:47,632 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 2.0) internal successors, (44), 15 states have internal predecessors, (44), 7 states have call successors, (15), 8 states have call predecessors, (15), 4 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) Word has length 53 [2021-10-28 08:43:47,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:43:47,633 INFO L225 Difference]: With dead ends: 68 [2021-10-28 08:43:47,633 INFO L226 Difference]: Without dead ends: 68 [2021-10-28 08:43:47,633 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 81 SyntacticMatches, 3 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=88, Invalid=614, Unknown=0, NotChecked=0, Total=702 [2021-10-28 08:43:47,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2021-10-28 08:43:47,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2021-10-28 08:43:47,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 48 states have (on average 1.0625) internal successors, (51), 50 states have internal predecessors, (51), 10 states have call successors, (10), 10 states have call predecessors, (10), 9 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2021-10-28 08:43:47,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 70 transitions. [2021-10-28 08:43:47,637 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 70 transitions. Word has length 53 [2021-10-28 08:43:47,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:43:47,638 INFO L470 AbstractCegarLoop]: Abstraction has 68 states and 70 transitions. [2021-10-28 08:43:47,638 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 2.0) internal successors, (44), 15 states have internal predecessors, (44), 7 states have call successors, (15), 8 states have call predecessors, (15), 4 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) [2021-10-28 08:43:47,638 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 70 transitions. [2021-10-28 08:43:47,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-10-28 08:43:47,639 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:43:47,639 INFO L513 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:43:47,667 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-10-28 08:43:47,852 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:43:47,852 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 08:43:47,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:43:47,852 INFO L85 PathProgramCache]: Analyzing trace with hash -1516815243, now seen corresponding path program 1 times [2021-10-28 08:43:47,853 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:43:47,853 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [345871297] [2021-10-28 08:43:47,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:43:47,853 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:43:47,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:43:47,854 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:43:47,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-10-28 08:43:48,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:43:48,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 08:43:48,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:43:48,474 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-28 08:43:48,474 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:43:48,797 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-28 08:43:48,798 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:43:48,798 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [345871297] [2021-10-28 08:43:48,798 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [345871297] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 08:43:48,798 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:43:48,798 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 8 [2021-10-28 08:43:48,799 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612590140] [2021-10-28 08:43:48,799 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 08:43:48,800 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:43:48,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 08:43:48,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-10-28 08:43:48,801 INFO L87 Difference]: Start difference. First operand 68 states and 70 transitions. Second operand has 8 states, 8 states have (on average 3.125) internal successors, (25), 7 states have internal predecessors, (25), 2 states have call successors, (7), 1 states have call predecessors, (7), 4 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2021-10-28 08:43:48,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:43:48,854 INFO L93 Difference]: Finished difference Result 70 states and 71 transitions. [2021-10-28 08:43:48,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 08:43:48,855 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 7 states have internal predecessors, (25), 2 states have call successors, (7), 1 states have call predecessors, (7), 4 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) Word has length 51 [2021-10-28 08:43:48,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:43:48,856 INFO L225 Difference]: With dead ends: 70 [2021-10-28 08:43:48,857 INFO L226 Difference]: Without dead ends: 68 [2021-10-28 08:43:48,857 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-10-28 08:43:48,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2021-10-28 08:43:48,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2021-10-28 08:43:48,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 48 states have (on average 1.0416666666666667) internal successors, (50), 49 states have internal predecessors, (50), 10 states have call successors, (10), 10 states have call predecessors, (10), 9 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2021-10-28 08:43:48,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 69 transitions. [2021-10-28 08:43:48,861 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 69 transitions. Word has length 51 [2021-10-28 08:43:48,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:43:48,862 INFO L470 AbstractCegarLoop]: Abstraction has 68 states and 69 transitions. [2021-10-28 08:43:48,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 7 states have internal predecessors, (25), 2 states have call successors, (7), 1 states have call predecessors, (7), 4 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2021-10-28 08:43:48,862 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 69 transitions. [2021-10-28 08:43:48,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-10-28 08:43:48,863 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:43:48,863 INFO L513 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:43:48,884 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-10-28 08:43:49,064 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:43:49,064 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 08:43:49,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:43:49,064 INFO L85 PathProgramCache]: Analyzing trace with hash 240473020, now seen corresponding path program 1 times [2021-10-28 08:43:49,065 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:43:49,065 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2136547784] [2021-10-28 08:43:49,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:43:49,065 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:43:49,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:43:49,066 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:43:49,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-10-28 08:43:49,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:43:49,516 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 08:43:49,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:43:49,705 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-28 08:43:49,705 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:43:50,190 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-28 08:43:50,191 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:43:50,191 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2136547784] [2021-10-28 08:43:50,191 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2136547784] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 08:43:50,191 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:43:50,191 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 11 [2021-10-28 08:43:50,191 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293547720] [2021-10-28 08:43:50,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-28 08:43:50,192 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:43:50,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-28 08:43:50,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-10-28 08:43:50,193 INFO L87 Difference]: Start difference. First operand 68 states and 69 transitions. Second operand has 11 states, 11 states have (on average 2.727272727272727) internal successors, (30), 10 states have internal predecessors, (30), 4 states have call successors, (9), 1 states have call predecessors, (9), 5 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2021-10-28 08:43:50,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:43:50,288 INFO L93 Difference]: Finished difference Result 72 states and 72 transitions. [2021-10-28 08:43:50,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 08:43:50,289 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.727272727272727) internal successors, (30), 10 states have internal predecessors, (30), 4 states have call successors, (9), 1 states have call predecessors, (9), 5 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) Word has length 56 [2021-10-28 08:43:50,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:43:50,290 INFO L225 Difference]: With dead ends: 72 [2021-10-28 08:43:50,290 INFO L226 Difference]: Without dead ends: 68 [2021-10-28 08:43:50,290 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-10-28 08:43:50,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2021-10-28 08:43:50,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2021-10-28 08:43:50,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 48 states have (on average 1.0208333333333333) internal successors, (49), 48 states have internal predecessors, (49), 10 states have call successors, (10), 10 states have call predecessors, (10), 9 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2021-10-28 08:43:50,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 68 transitions. [2021-10-28 08:43:50,295 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 68 transitions. Word has length 56 [2021-10-28 08:43:50,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:43:50,295 INFO L470 AbstractCegarLoop]: Abstraction has 68 states and 68 transitions. [2021-10-28 08:43:50,296 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.727272727272727) internal successors, (30), 10 states have internal predecessors, (30), 4 states have call successors, (9), 1 states have call predecessors, (9), 5 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2021-10-28 08:43:50,296 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 68 transitions. [2021-10-28 08:43:50,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-10-28 08:43:50,297 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:43:50,298 INFO L513 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:43:50,312 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-10-28 08:43:50,507 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:43:50,507 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 08:43:50,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:43:50,508 INFO L85 PathProgramCache]: Analyzing trace with hash 214334517, now seen corresponding path program 1 times [2021-10-28 08:43:50,508 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:43:50,508 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1799589518] [2021-10-28 08:43:50,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:43:50,509 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:43:50,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:43:50,509 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:43:50,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-10-28 08:43:51,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:43:51,076 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:43:51,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:43:51,315 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-10-28 08:43:51,315 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 08:43:51,317 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-10-28 08:43:51,319 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION [2021-10-28 08:43:51,319 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION [2021-10-28 08:43:51,320 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION [2021-10-28 08:43:51,320 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION [2021-10-28 08:43:51,320 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION [2021-10-28 08:43:51,320 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION [2021-10-28 08:43:51,321 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION [2021-10-28 08:43:51,321 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION [2021-10-28 08:43:51,321 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION [2021-10-28 08:43:51,321 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION [2021-10-28 08:43:51,321 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION [2021-10-28 08:43:51,322 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION [2021-10-28 08:43:51,322 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION [2021-10-28 08:43:51,322 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION [2021-10-28 08:43:51,322 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION [2021-10-28 08:43:51,323 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION [2021-10-28 08:43:51,323 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION [2021-10-28 08:43:51,323 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION [2021-10-28 08:43:51,323 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION [2021-10-28 08:43:51,323 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION [2021-10-28 08:43:51,324 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION [2021-10-28 08:43:51,324 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION [2021-10-28 08:43:51,324 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION [2021-10-28 08:43:51,324 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION [2021-10-28 08:43:51,325 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION [2021-10-28 08:43:51,325 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION [2021-10-28 08:43:51,325 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION [2021-10-28 08:43:51,325 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION [2021-10-28 08:43:51,325 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION [2021-10-28 08:43:51,326 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION [2021-10-28 08:43:51,326 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION [2021-10-28 08:43:51,326 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION [2021-10-28 08:43:51,326 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION [2021-10-28 08:43:51,327 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION [2021-10-28 08:43:51,327 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION [2021-10-28 08:43:51,327 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION [2021-10-28 08:43:51,327 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION [2021-10-28 08:43:51,327 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION [2021-10-28 08:43:51,328 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION [2021-10-28 08:43:51,328 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION [2021-10-28 08:43:51,328 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION [2021-10-28 08:43:51,328 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION [2021-10-28 08:43:51,329 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 08:43:51,329 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 08:43:51,329 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 08:43:51,329 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 08:43:51,330 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 08:43:51,330 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 08:43:51,330 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION [2021-10-28 08:43:51,330 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION [2021-10-28 08:43:51,331 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION [2021-10-28 08:43:51,331 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION [2021-10-28 08:43:51,331 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION [2021-10-28 08:43:51,331 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION [2021-10-28 08:43:51,331 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION [2021-10-28 08:43:51,332 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION [2021-10-28 08:43:51,332 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 08:43:51,332 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 08:43:51,332 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 08:43:51,333 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 08:43:51,333 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 08:43:51,333 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 08:43:51,333 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION [2021-10-28 08:43:51,334 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION [2021-10-28 08:43:51,334 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION [2021-10-28 08:43:51,334 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION [2021-10-28 08:43:51,334 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION [2021-10-28 08:43:51,334 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION [2021-10-28 08:43:51,335 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION [2021-10-28 08:43:51,335 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION [2021-10-28 08:43:51,357 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-10-28 08:43:51,553 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:43:51,555 INFO L731 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:43:51,560 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 08:43:51,581 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2021-10-28 08:43:51,587 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-10-28 08:43:51,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 08:43:51 BoogieIcfgContainer [2021-10-28 08:43:51,612 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 08:43:51,613 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 08:43:51,613 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 08:43:51,613 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 08:43:51,614 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:43:25" (3/4) ... [2021-10-28 08:43:51,617 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 08:43:51,617 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 08:43:51,619 INFO L168 Benchmark]: Toolchain (without parser) took 29019.16 ms. Allocated memory was 65.0 MB in the beginning and 123.7 MB in the end (delta: 58.7 MB). Free memory was 43.6 MB in the beginning and 73.3 MB in the end (delta: -29.7 MB). Peak memory consumption was 30.3 MB. Max. memory is 16.1 GB. [2021-10-28 08:43:51,619 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 65.0 MB. Free memory is still 46.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:43:51,620 INFO L168 Benchmark]: CACSL2BoogieTranslator took 825.37 ms. Allocated memory is still 65.0 MB. Free memory was 43.4 MB in the beginning and 32.9 MB in the end (delta: 10.5 MB). Peak memory consumption was 16.7 MB. Max. memory is 16.1 GB. [2021-10-28 08:43:51,620 INFO L168 Benchmark]: Boogie Preprocessor took 137.85 ms. Allocated memory was 65.0 MB in the beginning and 96.5 MB in the end (delta: 31.5 MB). Free memory was 32.7 MB in the beginning and 76.9 MB in the end (delta: -44.1 MB). Peak memory consumption was 5.8 MB. Max. memory is 16.1 GB. [2021-10-28 08:43:51,621 INFO L168 Benchmark]: RCFGBuilder took 1648.58 ms. Allocated memory is still 96.5 MB. Free memory was 76.9 MB in the beginning and 60.5 MB in the end (delta: 16.4 MB). Peak memory consumption was 34.7 MB. Max. memory is 16.1 GB. [2021-10-28 08:43:51,621 INFO L168 Benchmark]: TraceAbstraction took 26395.75 ms. Allocated memory was 96.5 MB in the beginning and 123.7 MB in the end (delta: 27.3 MB). Free memory was 59.9 MB in the beginning and 73.3 MB in the end (delta: -13.4 MB). Peak memory consumption was 12.8 MB. Max. memory is 16.1 GB. [2021-10-28 08:43:51,622 INFO L168 Benchmark]: Witness Printer took 4.79 ms. Allocated memory is still 123.7 MB. Free memory is still 73.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:43:51,624 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 65.0 MB. Free memory is still 46.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 825.37 ms. Allocated memory is still 65.0 MB. Free memory was 43.4 MB in the beginning and 32.9 MB in the end (delta: 10.5 MB). Peak memory consumption was 16.7 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 137.85 ms. Allocated memory was 65.0 MB in the beginning and 96.5 MB in the end (delta: 31.5 MB). Free memory was 32.7 MB in the beginning and 76.9 MB in the end (delta: -44.1 MB). Peak memory consumption was 5.8 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1648.58 ms. Allocated memory is still 96.5 MB. Free memory was 76.9 MB in the beginning and 60.5 MB in the end (delta: 16.4 MB). Peak memory consumption was 34.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 26395.75 ms. Allocated memory was 96.5 MB in the beginning and 123.7 MB in the end (delta: 27.3 MB). Free memory was 59.9 MB in the beginning and 73.3 MB in the end (delta: -13.4 MB). Peak memory consumption was 12.8 MB. Max. memory is 16.1 GB. * Witness Printer took 4.79 ms. Allocated memory is still 123.7 MB. Free memory is still 73.3 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 free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 761]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 761. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; VAL [\old(ldv_global_msg_list)=null, \old(ldv_global_msg_list)=null, ldv_global_msg_list={-2147483648:0}] [L762] CALL entry_point() VAL [ldv_global_msg_list={-2147483648:0}] [L758] struct ldv_kobject *kobj; VAL [ldv_global_msg_list={-2147483648:0}] [L759] CALL, EXPR ldv_kobject_create() VAL [ldv_global_msg_list={-2147483648:0}] [L740] struct ldv_kobject *kobj; VAL [ldv_global_msg_list={-2147483648:0}] [L741] CALL, EXPR ldv_malloc(sizeof(*kobj)) VAL [\old(size)=16, ldv_global_msg_list={-2147483648:0}] [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L741] RET, EXPR ldv_malloc(sizeof(*kobj)) VAL [ldv_global_msg_list={-2147483648:0}, ldv_malloc(sizeof(*kobj))={1:0}] [L741] kobj = ldv_malloc(sizeof(*kobj)) [L742] COND FALSE !(!kobj) VAL [kobj={1:0}, ldv_global_msg_list={-2147483648:0}] [L744] FCALL memset(kobj, 0, sizeof(*kobj)) VAL [kobj={1:0}, ldv_global_msg_list={-2147483648:0}, memset(kobj, 0, sizeof(*kobj))={1:0}] [L745] CALL ldv_kobject_init(kobj) VAL [kobj={1:0}, ldv_global_msg_list={-2147483648:0}] [L730] COND FALSE !(!kobj) VAL [kobj={1:0}, kobj={1:0}, ldv_global_msg_list={-2147483648:0}] [L733] CALL ldv_kobject_init_internal(kobj) VAL [kobj={1:0}, ldv_global_msg_list={-2147483648:0}] [L723] COND FALSE !(!kobj) VAL [kobj={1:0}, kobj={1:0}, ldv_global_msg_list={-2147483648:0}] [L725] CALL ldv_kref_init(&kobj->kref) VAL [kref={1:12}, ldv_global_msg_list={-2147483648:0}] [L682] ((&kref->refcount)->counter) = (1) VAL [kref={1:12}, kref={1:12}, ldv_global_msg_list={-2147483648:0}] [L725] RET ldv_kref_init(&kobj->kref) VAL [kobj={1:0}, kobj={1:0}, ldv_global_msg_list={-2147483648:0}] [L726] CALL LDV_INIT_LIST_HEAD(&kobj->entry) VAL [ldv_global_msg_list={-2147483648:0}, list={1:4}] [L540] list->next = list VAL [ldv_global_msg_list={-2147483648:0}, list={1:4}, list={1:4}] [L541] list->prev = list VAL [ldv_global_msg_list={-2147483648:0}, list={1:4}, list={1:4}] [L726] RET LDV_INIT_LIST_HEAD(&kobj->entry) VAL [kobj={1:0}, kobj={1:0}, ldv_global_msg_list={-2147483648:0}] [L733] RET ldv_kobject_init_internal(kobj) VAL [kobj={1:0}, kobj={1:0}, ldv_global_msg_list={-2147483648:0}] [L745] RET ldv_kobject_init(kobj) VAL [kobj={1:0}, ldv_global_msg_list={-2147483648:0}] [L746] return kobj; VAL [\result={1:0}, kobj={1:0}, ldv_global_msg_list={-2147483648:0}] [L759] RET, EXPR ldv_kobject_create() VAL [ldv_global_msg_list={-2147483648:0}, ldv_kobject_create()={1:0}] [L759] kobj = ldv_kobject_create() [L762] RET entry_point() VAL [ldv_global_msg_list={-2147483648:0}] - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 47 procedures, 330 locations, 71 error locations. Started 1 CEGAR loops. OverallTime: 26.2s, OverallIterations: 16, TraceHistogramMax: 16, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 6.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 760 SDtfs, 374 SDslu, 4036 SDs, 0 SdLazy, 2295 SolverSat, 162 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1109 GetRequests, 896 SyntacticMatches, 28 SemanticMatches, 185 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 463 ImplicationChecksByTransitivity, 5.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=92occurred in iteration=0, InterpolantAutomatonStates: 144, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 15 MinimizatonAttempts, 15 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 10.7s InterpolantComputationTime, 614 NumberOfCodeBlocks, 578 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 1064 ConstructedInterpolants, 80 QuantifiedInterpolants, 3835 SizeOfPredicates, 28 NumberOfNonLiveVariables, 2264 ConjunctsInSsa, 146 ConjunctsInUnsatCore, 30 InterpolantComputations, 24 PerfectInterpolantSequences, 1340/1598 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 [2021-10-28 08:43:51,704 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c61b6368-f59a-44a4-bf79-77e5aa1ece1d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...