./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test6_3.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_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test6_3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD --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 8767e0bad2c10bf5e26ce466e806335c672949ef870a6e01ac396a8c6ce00fcd ................................................................................................................................... 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_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test6_3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD --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 8767e0bad2c10bf5e26ce466e806335c672949ef870a6e01ac396a8c6ce00fcd ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 23:10:52,704 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:10:52,706 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:10:52,770 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:10:52,773 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:10:52,780 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:10:52,782 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:10:52,787 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:10:52,791 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:10:52,798 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:10:52,800 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:10:52,802 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:10:52,803 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:10:52,806 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:10:52,809 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:10:52,816 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:10:52,819 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:10:52,820 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:10:52,823 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:10:52,834 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:10:52,837 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:10:52,839 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:10:52,843 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:10:52,845 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:10:52,850 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:10:52,851 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:10:52,851 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:10:52,854 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:10:52,855 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:10:52,857 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:10:52,858 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:10:52,860 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:10:52,862 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:10:52,864 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:10:52,866 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:10:52,867 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:10:52,868 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:10:52,868 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:10:52,868 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:10:52,870 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:10:52,871 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:10:52,872 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-10-28 23:10:52,920 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:10:52,920 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:10:52,921 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:10:52,921 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:10:52,923 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:10:52,923 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:10:52,924 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:10:52,924 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:10:52,924 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:10:52,925 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:10:52,925 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:10:52,925 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:10:52,926 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:10:52,926 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 23:10:52,926 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 23:10:52,927 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 23:10:52,927 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:10:52,927 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 23:10:52,927 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:10:52,928 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:10:52,928 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:10:52,928 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:10:52,929 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:10:52,929 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:10:52,930 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:10:52,930 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:10:52,930 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:10:52,930 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 23:10:52,931 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:10:52,931 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_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8767e0bad2c10bf5e26ce466e806335c672949ef870a6e01ac396a8c6ce00fcd [2021-10-28 23:10:53,305 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:10:53,357 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:10:53,361 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:10:53,363 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:10:53,366 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:10:53,367 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/ldv-memsafety/memleaks_test6_3.i [2021-10-28 23:10:53,466 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/data/8b40762dc/1877f543c0cc424a99b6328497ddab62/FLAG5c10db3fa [2021-10-28 23:10:54,368 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:10:54,369 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/sv-benchmarks/c/ldv-memsafety/memleaks_test6_3.i [2021-10-28 23:10:54,406 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/data/8b40762dc/1877f543c0cc424a99b6328497ddab62/FLAG5c10db3fa [2021-10-28 23:10:54,617 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/data/8b40762dc/1877f543c0cc424a99b6328497ddab62 [2021-10-28 23:10:54,621 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:10:54,623 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 23:10:54,625 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:10:54,625 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:10:54,631 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:10:54,632 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:10:54" (1/1) ... [2021-10-28 23:10:54,634 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a41622f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:10:54, skipping insertion in model container [2021-10-28 23:10:54,635 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:10:54" (1/1) ... [2021-10-28 23:10:54,646 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:10:54,734 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:10:55,245 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:10:55,275 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 23:10:55,276 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2628380d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:10:55, skipping insertion in model container [2021-10-28 23:10:55,276 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:10:55,277 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-10-28 23:10:55,281 INFO L168 Benchmark]: Toolchain (without parser) took 655.48 ms. Allocated memory was 102.8 MB in the beginning and 142.6 MB in the end (delta: 39.8 MB). Free memory was 71.5 MB in the beginning and 113.0 MB in the end (delta: -41.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-28 23:10:55,283 INFO L168 Benchmark]: CDTParser took 0.40 ms. Allocated memory is still 102.8 MB. Free memory is still 58.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:10:55,286 INFO L168 Benchmark]: CACSL2BoogieTranslator took 652.05 ms. Allocated memory was 102.8 MB in the beginning and 142.6 MB in the end (delta: 39.8 MB). Free memory was 71.2 MB in the beginning and 113.1 MB in the end (delta: -41.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-28 23:10:55,289 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40 ms. Allocated memory is still 102.8 MB. Free memory is still 58.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 652.05 ms. Allocated memory was 102.8 MB in the beginning and 142.6 MB in the end (delta: 39.8 MB). Free memory was 71.2 MB in the beginning and 113.1 MB in the end (delta: -41.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:10:58,204 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:10:58,208 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:10:58,278 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:10:58,279 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:10:58,285 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:10:58,288 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:10:58,296 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:10:58,300 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:10:58,307 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:10:58,309 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:10:58,312 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:10:58,312 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:10:58,315 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:10:58,318 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:10:58,324 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:10:58,327 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:10:58,328 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:10:58,331 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:10:58,341 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:10:58,344 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:10:58,346 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:10:58,349 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:10:58,352 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:10:58,363 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:10:58,364 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:10:58,365 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:10:58,367 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:10:58,368 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:10:58,369 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:10:58,370 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:10:58,371 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:10:58,374 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:10:58,375 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:10:58,377 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:10:58,378 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:10:58,379 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:10:58,379 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:10:58,380 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:10:58,382 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:10:58,383 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:10:58,384 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-28 23:10:58,460 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:10:58,460 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:10:58,461 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:10:58,462 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:10:58,464 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:10:58,465 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:10:58,465 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:10:58,466 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:10:58,466 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:10:58,466 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:10:58,468 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:10:58,468 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:10:58,468 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:10:58,469 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 23:10:58,469 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 23:10:58,470 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 23:10:58,470 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:10:58,470 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 23:10:58,471 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-28 23:10:58,471 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-28 23:10:58,471 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:10:58,472 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:10:58,472 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:10:58,472 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:10:58,473 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:10:58,473 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:10:58,474 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:10:58,474 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:10:58,474 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-28 23:10:58,475 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-28 23:10:58,475 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:10:58,475 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-28 23:10:58,476 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_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8767e0bad2c10bf5e26ce466e806335c672949ef870a6e01ac396a8c6ce00fcd [2021-10-28 23:10:58,971 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:10:59,002 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:10:59,007 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:10:59,009 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:10:59,010 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:10:59,011 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/ldv-memsafety/memleaks_test6_3.i [2021-10-28 23:10:59,086 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/data/df6d748c8/03868512528149128e74b28c740b2b80/FLAG73aa08396 [2021-10-28 23:10:59,969 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:10:59,970 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/sv-benchmarks/c/ldv-memsafety/memleaks_test6_3.i [2021-10-28 23:10:59,992 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/data/df6d748c8/03868512528149128e74b28c740b2b80/FLAG73aa08396 [2021-10-28 23:11:00,162 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/data/df6d748c8/03868512528149128e74b28c740b2b80 [2021-10-28 23:11:00,165 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:11:00,167 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 23:11:00,171 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:11:00,172 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:11:00,177 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:11:00,178 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:11:00" (1/1) ... [2021-10-28 23:11:00,180 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@760ae3a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:11:00, skipping insertion in model container [2021-10-28 23:11:00,180 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:11:00" (1/1) ... [2021-10-28 23:11:00,190 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:11:00,287 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:11:00,853 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:11:00,876 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-28 23:11:00,895 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:11:01,001 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:11:01,016 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:11:01,104 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:11:01,177 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:11:01,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:11:01 WrapperNode [2021-10-28 23:11:01,179 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:11:01,181 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:11:01,181 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:11:01,181 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:11:01,196 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:11:01" (1/1) ... [2021-10-28 23:11:01,197 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:11:01" (1/1) ... [2021-10-28 23:11:01,229 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:11:01" (1/1) ... [2021-10-28 23:11:01,229 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:11:01" (1/1) ... [2021-10-28 23:11:01,288 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:11:01" (1/1) ... [2021-10-28 23:11:01,296 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:11:01" (1/1) ... [2021-10-28 23:11:01,317 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:11:01" (1/1) ... [2021-10-28 23:11:01,346 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:11:01,348 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:11:01,348 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:11:01,348 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:11:01,350 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:11:01" (1/1) ... [2021-10-28 23:11:01,365 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:11:01,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:11:01,397 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:11:01,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:11:01,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-28 23:11:01,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:11:01,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-10-28 23:11:01,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-10-28 23:11:01,489 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-10-28 23:11:01,492 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-10-28 23:11:01,492 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-10-28 23:11:01,493 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-10-28 23:11:01,493 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-10-28 23:11:01,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-10-28 23:11:01,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-10-28 23:11:01,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-10-28 23:11:01,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-10-28 23:11:01,495 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-10-28 23:11:01,500 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-10-28 23:11:01,501 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-10-28 23:11:01,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-10-28 23:11:01,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-10-28 23:11:01,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-10-28 23:11:01,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-10-28 23:11:01,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-10-28 23:11:01,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-10-28 23:11:01,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-10-28 23:11:01,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-10-28 23:11:01,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-10-28 23:11:01,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-10-28 23:11:01,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-10-28 23:11:01,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-10-28 23:11:01,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-10-28 23:11:01,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-10-28 23:11:01,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-10-28 23:11:01,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-10-28 23:11:01,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-10-28 23:11:01,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-10-28 23:11:01,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-10-28 23:11:01,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-10-28 23:11:01,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-10-28 23:11:01,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-10-28 23:11:01,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-10-28 23:11:01,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-10-28 23:11:01,505 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-10-28 23:11:01,506 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-10-28 23:11:01,506 INFO L138 BoogieDeclarations]: Found implementation of procedure f6 [2021-10-28 23:11:01,507 INFO L138 BoogieDeclarations]: Found implementation of procedure g6 [2021-10-28 23:11:01,507 INFO L138 BoogieDeclarations]: Found implementation of procedure probe1_6 [2021-10-28 23:11:01,507 INFO L138 BoogieDeclarations]: Found implementation of procedure disconnect_2_6 [2021-10-28 23:11:01,507 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-10-28 23:11:01,508 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-28 23:11:01,509 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-10-28 23:11:01,509 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-10-28 23:11:01,509 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-10-28 23:11:01,510 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-10-28 23:11:01,510 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-10-28 23:11:01,510 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-10-28 23:11:01,510 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-10-28 23:11:01,510 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-10-28 23:11:01,510 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-10-28 23:11:01,510 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-10-28 23:11:01,510 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-10-28 23:11:01,511 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-10-28 23:11:01,511 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-10-28 23:11:01,511 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-10-28 23:11:01,513 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-10-28 23:11:01,513 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-10-28 23:11:01,514 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-10-28 23:11:01,514 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-10-28 23:11:01,515 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-10-28 23:11:01,515 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-10-28 23:11:01,515 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-10-28 23:11:01,515 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-10-28 23:11:01,515 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-10-28 23:11:01,515 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-10-28 23:11:01,515 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-10-28 23:11:01,516 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-10-28 23:11:01,516 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-10-28 23:11:01,516 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-10-28 23:11:01,516 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-10-28 23:11:01,516 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-10-28 23:11:01,516 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-10-28 23:11:01,516 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-10-28 23:11:01,517 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-10-28 23:11:01,517 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-10-28 23:11:01,517 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-10-28 23:11:01,517 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-10-28 23:11:01,517 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-10-28 23:11:01,517 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-10-28 23:11:01,518 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-10-28 23:11:01,518 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-10-28 23:11:01,518 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-10-28 23:11:01,518 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-10-28 23:11:01,518 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-10-28 23:11:01,518 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-10-28 23:11:01,518 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-10-28 23:11:01,518 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-10-28 23:11:01,519 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-10-28 23:11:01,519 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-10-28 23:11:01,519 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-10-28 23:11:01,519 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-10-28 23:11:01,519 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-10-28 23:11:01,519 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-10-28 23:11:01,519 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-10-28 23:11:01,520 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-10-28 23:11:01,520 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-10-28 23:11:01,520 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-10-28 23:11:01,520 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-10-28 23:11:01,520 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-10-28 23:11:01,520 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-10-28 23:11:01,520 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-10-28 23:11:01,521 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-10-28 23:11:01,521 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-10-28 23:11:01,521 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-10-28 23:11:01,521 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-10-28 23:11:01,521 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-10-28 23:11:01,521 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-10-28 23:11:01,521 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-28 23:11:01,522 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-10-28 23:11:01,522 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-10-28 23:11:01,522 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-10-28 23:11:01,522 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-10-28 23:11:01,523 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-10-28 23:11:01,523 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-10-28 23:11:01,523 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-10-28 23:11:01,524 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-10-28 23:11:01,525 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-10-28 23:11:01,529 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-10-28 23:11:01,529 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-10-28 23:11:01,529 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-10-28 23:11:01,530 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-10-28 23:11:01,531 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-10-28 23:11:01,532 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-10-28 23:11:01,532 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-10-28 23:11:01,532 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-10-28 23:11:01,533 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-10-28 23:11:01,539 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-10-28 23:11:01,539 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-10-28 23:11:01,539 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-10-28 23:11:01,539 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-10-28 23:11:01,539 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-10-28 23:11:01,540 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-10-28 23:11:01,540 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-10-28 23:11:01,540 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-10-28 23:11:01,540 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-10-28 23:11:01,540 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-10-28 23:11:01,540 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-10-28 23:11:01,541 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-10-28 23:11:01,541 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-10-28 23:11:01,541 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-10-28 23:11:01,541 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-10-28 23:11:01,541 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-10-28 23:11:01,541 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-10-28 23:11:01,542 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-10-28 23:11:01,542 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-10-28 23:11:01,542 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-10-28 23:11:01,542 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-10-28 23:11:01,542 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-10-28 23:11:01,542 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-10-28 23:11:01,543 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-10-28 23:11:01,543 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-10-28 23:11:01,543 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-10-28 23:11:01,543 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-28 23:11:01,543 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-10-28 23:11:01,543 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-10-28 23:11:01,544 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-10-28 23:11:01,544 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-10-28 23:11:01,544 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-10-28 23:11:01,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-28 23:11:01,544 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-10-28 23:11:01,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-10-28 23:11:01,545 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-10-28 23:11:01,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-28 23:11:01,545 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-10-28 23:11:01,545 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-10-28 23:11:01,545 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-10-28 23:11:01,545 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-28 23:11:01,546 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-10-28 23:11:01,546 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-10-28 23:11:01,546 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-10-28 23:11:01,546 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-10-28 23:11:01,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-10-28 23:11:01,546 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-10-28 23:11:01,547 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 23:11:01,547 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-10-28 23:11:01,547 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-10-28 23:11:01,547 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-10-28 23:11:01,547 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-10-28 23:11:01,547 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-10-28 23:11:01,548 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-28 23:11:01,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-28 23:11:01,548 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-10-28 23:11:01,548 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-10-28 23:11:01,548 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-10-28 23:11:01,548 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-10-28 23:11:01,549 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-10-28 23:11:01,549 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-10-28 23:11:01,549 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-10-28 23:11:01,549 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-10-28 23:11:01,549 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-10-28 23:11:01,549 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-10-28 23:11:01,550 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-10-28 23:11:01,550 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-10-28 23:11:01,550 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-10-28 23:11:01,550 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-10-28 23:11:01,550 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-10-28 23:11:01,550 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-10-28 23:11:01,550 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-10-28 23:11:01,551 INFO L130 BoogieDeclarations]: Found specification of procedure f6 [2021-10-28 23:11:01,551 INFO L130 BoogieDeclarations]: Found specification of procedure g6 [2021-10-28 23:11:01,551 INFO L130 BoogieDeclarations]: Found specification of procedure probe1_6 [2021-10-28 23:11:01,551 INFO L130 BoogieDeclarations]: Found specification of procedure disconnect_2_6 [2021-10-28 23:11:01,551 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-10-28 23:11:01,551 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-28 23:11:01,552 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-28 23:11:01,552 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:11:01,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-28 23:11:01,552 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:11:01,552 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-10-28 23:11:01,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-10-28 23:11:01,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-10-28 23:11:01,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-10-28 23:11:01,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-10-28 23:11:02,266 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 23:11:02,726 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 23:11:03,132 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:11:03,132 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-10-28 23:11:03,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:11:03 BoogieIcfgContainer [2021-10-28 23:11:03,136 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:11:03,138 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:11:03,139 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:11:03,142 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:11:03,143 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:11:00" (1/3) ... [2021-10-28 23:11:03,144 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c7e1448 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:11:03, skipping insertion in model container [2021-10-28 23:11:03,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:11:01" (2/3) ... [2021-10-28 23:11:03,145 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c7e1448 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:11:03, skipping insertion in model container [2021-10-28 23:11:03,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:11:03" (3/3) ... [2021-10-28 23:11:03,147 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test6_3.i [2021-10-28 23:11:03,153 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:11:03,154 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 78 error locations. [2021-10-28 23:11:03,201 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:11:03,209 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 23:11:03,209 INFO L340 AbstractCegarLoop]: Starting to check reachability of 78 error locations. [2021-10-28 23:11:03,231 INFO L276 IsEmpty]: Start isEmpty. Operand has 125 states, 70 states have (on average 1.5) internal successors, (105), 96 states have internal predecessors, (105), 15 states have call successors, (15), 14 states have call predecessors, (15), 14 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2021-10-28 23:11:03,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-28 23:11:03,257 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:11:03,258 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] [2021-10-28 23:11:03,258 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting entry_pointErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 74 more)] === [2021-10-28 23:11:03,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:11:03,266 INFO L85 PathProgramCache]: Analyzing trace with hash 24886788, now seen corresponding path program 1 times [2021-10-28 23:11:03,278 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:11:03,279 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2103790009] [2021-10-28 23:11:03,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:11:03,280 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:11:03,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:11:03,284 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:11:03,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-28 23:11:03,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:11:03,569 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:11:03,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:11:03,771 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 23:11:03,771 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:11:03,947 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 23:11:03,948 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:11:03,953 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2103790009] [2021-10-28 23:11:03,953 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2103790009] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:11:03,954 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:11:03,954 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-28 23:11:03,957 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007459047] [2021-10-28 23:11:03,965 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:11:03,965 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:11:03,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:11:03,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:11:03,991 INFO L87 Difference]: Start difference. First operand has 125 states, 70 states have (on average 1.5) internal successors, (105), 96 states have internal predecessors, (105), 15 states have call successors, (15), 14 states have call predecessors, (15), 14 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 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 23:11:04,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:11:04,109 INFO L93 Difference]: Finished difference Result 76 states and 85 transitions. [2021-10-28 23:11:04,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:11:04,112 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 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 20 [2021-10-28 23:11:04,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:11:04,127 INFO L225 Difference]: With dead ends: 76 [2021-10-28 23:11:04,127 INFO L226 Difference]: Without dead ends: 73 [2021-10-28 23:11:04,129 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 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 23:11:04,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-10-28 23:11:04,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 56. [2021-10-28 23:11:04,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 32 states have (on average 1.375) internal successors, (44), 40 states have internal predecessors, (44), 8 states have call successors, (8), 8 states have call predecessors, (8), 8 states have return successors, (8), 8 states have call predecessors, (8), 7 states have call successors, (8) [2021-10-28 23:11:04,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 60 transitions. [2021-10-28 23:11:04,194 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 60 transitions. Word has length 20 [2021-10-28 23:11:04,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:11:04,195 INFO L470 AbstractCegarLoop]: Abstraction has 56 states and 60 transitions. [2021-10-28 23:11:04,195 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 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 23:11:04,195 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 60 transitions. [2021-10-28 23:11:04,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-28 23:11:04,198 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:11:04,199 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] [2021-10-28 23:11:04,220 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-28 23:11:04,417 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:11:04,417 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting entry_pointErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 74 more)] === [2021-10-28 23:11:04,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:11:04,419 INFO L85 PathProgramCache]: Analyzing trace with hash -171626717, now seen corresponding path program 1 times [2021-10-28 23:11:04,419 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:11:04,420 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [356571920] [2021-10-28 23:11:04,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:11:04,420 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:11:04,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:11:04,429 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:11:04,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-28 23:11:04,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:11:04,670 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-28 23:11:04,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:11:04,764 INFO L354 Elim1Store]: treesize reduction 34, result has 38.2 percent of original size [2021-10-28 23:11:04,766 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 26 [2021-10-28 23:11:04,892 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2021-10-28 23:11:04,958 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 23:11:04,958 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:11:05,153 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-10-28 23:11:05,273 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 23:11:05,273 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:11:05,273 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [356571920] [2021-10-28 23:11:05,274 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [356571920] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:11:05,274 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:11:05,274 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-28 23:11:05,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689971964] [2021-10-28 23:11:05,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:11:05,277 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:11:05,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:11:05,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:11:05,279 INFO L87 Difference]: Start difference. First operand 56 states and 60 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 4 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2021-10-28 23:11:05,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:11:05,491 INFO L93 Difference]: Finished difference Result 92 states and 102 transitions. [2021-10-28 23:11:05,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:11:05,493 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 4 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 20 [2021-10-28 23:11:05,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:11:05,495 INFO L225 Difference]: With dead ends: 92 [2021-10-28 23:11:05,495 INFO L226 Difference]: Without dead ends: 89 [2021-10-28 23:11:05,496 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 30 SyntacticMatches, 6 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:11:05,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2021-10-28 23:11:05,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 79. [2021-10-28 23:11:05,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 48 states have (on average 1.3958333333333333) internal successors, (67), 58 states have internal predecessors, (67), 12 states have call successors, (12), 9 states have call predecessors, (12), 11 states have return successors, (14), 14 states have call predecessors, (14), 11 states have call successors, (14) [2021-10-28 23:11:05,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 93 transitions. [2021-10-28 23:11:05,511 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 93 transitions. Word has length 20 [2021-10-28 23:11:05,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:11:05,512 INFO L470 AbstractCegarLoop]: Abstraction has 79 states and 93 transitions. [2021-10-28 23:11:05,512 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 4 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2021-10-28 23:11:05,513 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 93 transitions. [2021-10-28 23:11:05,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-28 23:11:05,515 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:11:05,515 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] [2021-10-28 23:11:05,540 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-28 23:11:05,741 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:11:05,741 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting entry_pointErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 74 more)] === [2021-10-28 23:11:05,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:11:05,742 INFO L85 PathProgramCache]: Analyzing trace with hash -171626716, now seen corresponding path program 1 times [2021-10-28 23:11:05,742 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:11:05,743 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [968197659] [2021-10-28 23:11:05,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:11:05,743 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:11:05,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:11:05,745 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:11:05,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-28 23:11:05,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:11:05,991 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-28 23:11:05,993 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:11:06,033 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-10-28 23:11:06,034 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2021-10-28 23:11:06,135 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-10-28 23:11:06,297 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 23:11:06,298 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:11:06,759 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2021-10-28 23:11:07,059 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 23:11:07,060 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:11:07,060 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [968197659] [2021-10-28 23:11:07,060 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [968197659] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:11:07,060 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:11:07,060 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-10-28 23:11:07,061 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167294145] [2021-10-28 23:11:07,061 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 23:11:07,061 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:11:07,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:11:07,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:11:07,063 INFO L87 Difference]: Start difference. First operand 79 states and 93 transitions. Second operand has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 5 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2021-10-28 23:11:07,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:11:07,386 INFO L93 Difference]: Finished difference Result 110 states and 118 transitions. [2021-10-28 23:11:07,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 23:11:07,388 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 5 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 20 [2021-10-28 23:11:07,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:11:07,390 INFO L225 Difference]: With dead ends: 110 [2021-10-28 23:11:07,391 INFO L226 Difference]: Without dead ends: 100 [2021-10-28 23:11:07,391 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2021-10-28 23:11:07,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2021-10-28 23:11:07,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 90. [2021-10-28 23:11:07,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 56 states have (on average 1.375) internal successors, (77), 66 states have internal predecessors, (77), 12 states have call successors, (12), 12 states have call predecessors, (12), 14 states have return successors, (14), 14 states have call predecessors, (14), 11 states have call successors, (14) [2021-10-28 23:11:07,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 103 transitions. [2021-10-28 23:11:07,404 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 103 transitions. Word has length 20 [2021-10-28 23:11:07,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:11:07,405 INFO L470 AbstractCegarLoop]: Abstraction has 90 states and 103 transitions. [2021-10-28 23:11:07,405 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 5 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2021-10-28 23:11:07,405 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 103 transitions. [2021-10-28 23:11:07,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-28 23:11:07,406 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:11:07,407 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 23:11:07,425 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-10-28 23:11:07,625 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:11:07,625 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting probe1_6Err2ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 74 more)] === [2021-10-28 23:11:07,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:11:07,626 INFO L85 PathProgramCache]: Analyzing trace with hash 2076107592, now seen corresponding path program 1 times [2021-10-28 23:11:07,627 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:11:07,627 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [407895825] [2021-10-28 23:11:07,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:11:07,627 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:11:07,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:11:07,628 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:11:07,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-28 23:11:07,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:11:07,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:11:07,898 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:11:08,021 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 23:11:08,022 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:11:08,117 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 23:11:08,118 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:11:08,118 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [407895825] [2021-10-28 23:11:08,118 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [407895825] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:11:08,119 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:11:08,119 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-28 23:11:08,119 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954969342] [2021-10-28 23:11:08,120 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:11:08,120 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:11:08,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:11:08,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:11:08,121 INFO L87 Difference]: Start difference. First operand 90 states and 103 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-28 23:11:08,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:11:08,153 INFO L93 Difference]: Finished difference Result 89 states and 101 transitions. [2021-10-28 23:11:08,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:11:08,154 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 22 [2021-10-28 23:11:08,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:11:08,156 INFO L225 Difference]: With dead ends: 89 [2021-10-28 23:11:08,156 INFO L226 Difference]: Without dead ends: 89 [2021-10-28 23:11:08,157 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 23:11:08,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2021-10-28 23:11:08,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2021-10-28 23:11:08,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 56 states have (on average 1.3392857142857142) internal successors, (75), 65 states have internal predecessors, (75), 12 states have call successors, (12), 12 states have call predecessors, (12), 14 states have return successors, (14), 14 states have call predecessors, (14), 11 states have call successors, (14) [2021-10-28 23:11:08,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 101 transitions. [2021-10-28 23:11:08,168 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 101 transitions. Word has length 22 [2021-10-28 23:11:08,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:11:08,168 INFO L470 AbstractCegarLoop]: Abstraction has 89 states and 101 transitions. [2021-10-28 23:11:08,169 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-28 23:11:08,169 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 101 transitions. [2021-10-28 23:11:08,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-28 23:11:08,170 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:11:08,171 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] [2021-10-28 23:11:08,190 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-28 23:11:08,383 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:11:08,384 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting probe1_6Err3ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 74 more)] === [2021-10-28 23:11:08,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:11:08,384 INFO L85 PathProgramCache]: Analyzing trace with hash -65173633, now seen corresponding path program 1 times [2021-10-28 23:11:08,385 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:11:08,385 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [113857802] [2021-10-28 23:11:08,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:11:08,385 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:11:08,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:11:08,387 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:11:08,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-28 23:11:08,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:11:08,635 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 23:11:08,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:11:09,006 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 23:11:09,006 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:11:09,217 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 23:11:09,218 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:11:09,218 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [113857802] [2021-10-28 23:11:09,218 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [113857802] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:11:09,218 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:11:09,218 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 4] imperfect sequences [] total 9 [2021-10-28 23:11:09,219 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588291480] [2021-10-28 23:11:09,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 23:11:09,219 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:11:09,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 23:11:09,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-10-28 23:11:09,221 INFO L87 Difference]: Start difference. First operand 89 states and 101 transitions. Second operand has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 8 states have internal predecessors, (28), 4 states have call successors, (11), 3 states have call predecessors, (11), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2021-10-28 23:11:09,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:11:09,542 INFO L93 Difference]: Finished difference Result 95 states and 102 transitions. [2021-10-28 23:11:09,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 23:11:09,543 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 8 states have internal predecessors, (28), 4 states have call successors, (11), 3 states have call predecessors, (11), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) Word has length 23 [2021-10-28 23:11:09,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:11:09,544 INFO L225 Difference]: With dead ends: 95 [2021-10-28 23:11:09,544 INFO L226 Difference]: Without dead ends: 95 [2021-10-28 23:11:09,545 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-10-28 23:11:09,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2021-10-28 23:11:09,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 88. [2021-10-28 23:11:09,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 56 states have (on average 1.3035714285714286) internal successors, (73), 64 states have internal predecessors, (73), 12 states have call successors, (12), 12 states have call predecessors, (12), 14 states have return successors, (14), 14 states have call predecessors, (14), 11 states have call successors, (14) [2021-10-28 23:11:09,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 99 transitions. [2021-10-28 23:11:09,555 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 99 transitions. Word has length 23 [2021-10-28 23:11:09,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:11:09,555 INFO L470 AbstractCegarLoop]: Abstraction has 88 states and 99 transitions. [2021-10-28 23:11:09,556 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 8 states have internal predecessors, (28), 4 states have call successors, (11), 3 states have call predecessors, (11), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2021-10-28 23:11:09,556 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 99 transitions. [2021-10-28 23:11:09,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-28 23:11:09,557 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:11:09,558 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] [2021-10-28 23:11:09,581 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-28 23:11:09,781 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:11:09,781 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting probe1_6Err4ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 74 more)] === [2021-10-28 23:11:09,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:11:09,782 INFO L85 PathProgramCache]: Analyzing trace with hash -2020382166, now seen corresponding path program 1 times [2021-10-28 23:11:09,783 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:11:09,783 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1857311370] [2021-10-28 23:11:09,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:11:09,783 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:11:09,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:11:09,786 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:11:09,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-28 23:11:10,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:11:10,023 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:11:10,025 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:11:10,058 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 23:11:10,184 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 23:11:10,184 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:11:10,306 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 23:11:10,306 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:11:10,307 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1857311370] [2021-10-28 23:11:10,307 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1857311370] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:11:10,307 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:11:10,307 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 5 [2021-10-28 23:11:10,308 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189551560] [2021-10-28 23:11:10,308 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 23:11:10,308 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:11:10,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:11:10,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:11:10,310 INFO L87 Difference]: Start difference. First operand 88 states and 99 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-28 23:11:10,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:11:10,504 INFO L93 Difference]: Finished difference Result 91 states and 98 transitions. [2021-10-28 23:11:10,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 23:11:10,505 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 24 [2021-10-28 23:11:10,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:11:10,507 INFO L225 Difference]: With dead ends: 91 [2021-10-28 23:11:10,507 INFO L226 Difference]: Without dead ends: 91 [2021-10-28 23:11:10,507 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 41 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:11:10,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2021-10-28 23:11:10,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 88. [2021-10-28 23:11:10,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 56 states have (on average 1.2857142857142858) internal successors, (72), 64 states have internal predecessors, (72), 12 states have call successors, (12), 12 states have call predecessors, (12), 14 states have return successors, (14), 14 states have call predecessors, (14), 11 states have call successors, (14) [2021-10-28 23:11:10,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 98 transitions. [2021-10-28 23:11:10,518 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 98 transitions. Word has length 24 [2021-10-28 23:11:10,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:11:10,519 INFO L470 AbstractCegarLoop]: Abstraction has 88 states and 98 transitions. [2021-10-28 23:11:10,519 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-28 23:11:10,519 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 98 transitions. [2021-10-28 23:11:10,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-28 23:11:10,521 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:11:10,521 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] [2021-10-28 23:11:10,542 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-28 23:11:10,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:11:10,739 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting probe1_6Err4ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 74 more)] === [2021-10-28 23:11:10,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:11:10,740 INFO L85 PathProgramCache]: Analyzing trace with hash 1769026505, now seen corresponding path program 1 times [2021-10-28 23:11:10,740 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:11:10,741 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [480916396] [2021-10-28 23:11:10,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:11:10,741 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:11:10,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:11:10,743 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:11:10,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-28 23:11:11,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:11:11,063 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 23:11:11,065 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:11:11,206 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 23:11:11,206 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:11:11,369 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 23:11:11,369 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:11:11,370 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [480916396] [2021-10-28 23:11:11,370 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [480916396] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:11:11,370 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:11:11,370 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-28 23:11:11,371 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621680317] [2021-10-28 23:11:11,371 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:11:11,371 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:11:11,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:11:11,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:11:11,373 INFO L87 Difference]: Start difference. First operand 88 states and 98 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-28 23:11:11,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:11:11,399 INFO L93 Difference]: Finished difference Result 62 states and 66 transitions. [2021-10-28 23:11:11,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:11:11,401 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 24 [2021-10-28 23:11:11,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:11:11,406 INFO L225 Difference]: With dead ends: 62 [2021-10-28 23:11:11,406 INFO L226 Difference]: Without dead ends: 58 [2021-10-28 23:11:11,407 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 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 23:11:11,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2021-10-28 23:11:11,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2021-10-28 23:11:11,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 35 states have (on average 1.2571428571428571) internal successors, (44), 41 states have internal predecessors, (44), 9 states have call successors, (9), 9 states have call predecessors, (9), 9 states have return successors, (9), 9 states have call predecessors, (9), 8 states have call successors, (9) [2021-10-28 23:11:11,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 62 transitions. [2021-10-28 23:11:11,427 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 62 transitions. Word has length 24 [2021-10-28 23:11:11,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:11:11,427 INFO L470 AbstractCegarLoop]: Abstraction has 58 states and 62 transitions. [2021-10-28 23:11:11,428 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-28 23:11:11,430 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 62 transitions. [2021-10-28 23:11:11,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-28 23:11:11,431 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:11:11,432 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] [2021-10-28 23:11:11,445 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-28 23:11:11,646 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:11:11,646 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting probe1_6Err0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 74 more)] === [2021-10-28 23:11:11,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:11:11,647 INFO L85 PathProgramCache]: Analyzing trace with hash -292940866, now seen corresponding path program 1 times [2021-10-28 23:11:11,647 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:11:11,648 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1564741564] [2021-10-28 23:11:11,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:11:11,648 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:11:11,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:11:11,649 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:11:11,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-28 23:11:11,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:11:11,946 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-28 23:11:11,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:11:11,998 INFO L354 Elim1Store]: treesize reduction 34, result has 38.2 percent of original size [2021-10-28 23:11:11,999 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 26 [2021-10-28 23:11:12,196 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-10-28 23:11:12,196 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 20 [2021-10-28 23:11:12,381 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 23:11:12,381 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:11:12,720 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 23:11:12,721 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:11:12,721 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1564741564] [2021-10-28 23:11:12,721 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1564741564] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:11:12,721 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:11:12,721 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 5] imperfect sequences [] total 8 [2021-10-28 23:11:12,721 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53245011] [2021-10-28 23:11:12,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 23:11:12,722 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:11:12,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 23:11:12,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-10-28 23:11:12,723 INFO L87 Difference]: Start difference. First operand 58 states and 62 transitions. Second operand has 9 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 3 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-10-28 23:11:13,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:11:13,198 INFO L93 Difference]: Finished difference Result 62 states and 64 transitions. [2021-10-28 23:11:13,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 23:11:13,199 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 3 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 28 [2021-10-28 23:11:13,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:11:13,200 INFO L225 Difference]: With dead ends: 62 [2021-10-28 23:11:13,200 INFO L226 Difference]: Without dead ends: 62 [2021-10-28 23:11:13,201 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 39 SyntacticMatches, 10 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2021-10-28 23:11:13,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2021-10-28 23:11:13,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 57. [2021-10-28 23:11:13,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 35 states have (on average 1.2285714285714286) internal successors, (43), 40 states have internal predecessors, (43), 9 states have call successors, (9), 9 states have call predecessors, (9), 9 states have return successors, (9), 9 states have call predecessors, (9), 8 states have call successors, (9) [2021-10-28 23:11:13,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 61 transitions. [2021-10-28 23:11:13,205 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 61 transitions. Word has length 28 [2021-10-28 23:11:13,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:11:13,206 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 61 transitions. [2021-10-28 23:11:13,206 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 3 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-10-28 23:11:13,206 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 61 transitions. [2021-10-28 23:11:13,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-28 23:11:13,207 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:11:13,207 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] [2021-10-28 23:11:13,220 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-10-28 23:11:13,419 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:11:13,420 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting probe1_6Err1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 74 more)] === [2021-10-28 23:11:13,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:11:13,420 INFO L85 PathProgramCache]: Analyzing trace with hash -292940865, now seen corresponding path program 1 times [2021-10-28 23:11:13,421 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:11:13,421 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1443147278] [2021-10-28 23:11:13,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:11:13,421 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:11:13,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:11:13,422 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:11:13,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-28 23:11:13,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:11:13,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-28 23:11:13,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:11:13,755 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-10-28 23:11:13,756 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2021-10-28 23:11:18,100 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-10-28 23:11:18,100 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2021-10-28 23:11:18,504 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 23:11:18,505 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:11:23,173 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 23:11:23,173 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:11:23,173 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1443147278] [2021-10-28 23:11:23,174 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1443147278] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:11:23,174 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:11:23,174 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 7] imperfect sequences [] total 14 [2021-10-28 23:11:23,174 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793117171] [2021-10-28 23:11:23,175 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-28 23:11:23,175 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:11:23,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-28 23:11:23,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=167, Unknown=3, NotChecked=0, Total=210 [2021-10-28 23:11:23,176 INFO L87 Difference]: Start difference. First operand 57 states and 61 transitions. Second operand has 15 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 12 states have internal predecessors, (34), 6 states have call successors, (13), 8 states have call predecessors, (13), 6 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2021-10-28 23:11:29,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:11:29,509 INFO L93 Difference]: Finished difference Result 55 states and 58 transitions. [2021-10-28 23:11:29,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 23:11:29,510 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 12 states have internal predecessors, (34), 6 states have call successors, (13), 8 states have call predecessors, (13), 6 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 28 [2021-10-28 23:11:29,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:11:29,511 INFO L225 Difference]: With dead ends: 55 [2021-10-28 23:11:29,511 INFO L226 Difference]: Without dead ends: 55 [2021-10-28 23:11:29,511 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 38 SyntacticMatches, 5 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=122, Invalid=381, Unknown=3, NotChecked=0, Total=506 [2021-10-28 23:11:29,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2021-10-28 23:11:29,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2021-10-28 23:11:29,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 35 states have (on average 1.1428571428571428) internal successors, (40), 38 states have internal predecessors, (40), 9 states have call successors, (9), 9 states have call predecessors, (9), 9 states have return successors, (9), 9 states have call predecessors, (9), 8 states have call successors, (9) [2021-10-28 23:11:29,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 58 transitions. [2021-10-28 23:11:29,520 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 58 transitions. Word has length 28 [2021-10-28 23:11:29,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:11:29,521 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 58 transitions. [2021-10-28 23:11:29,521 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 12 states have internal predecessors, (34), 6 states have call successors, (13), 8 states have call predecessors, (13), 6 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2021-10-28 23:11:29,522 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 58 transitions. [2021-10-28 23:11:29,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-28 23:11:29,523 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:11:29,523 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] [2021-10-28 23:11:29,535 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-28 23:11:29,729 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:11:29,731 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting entry_pointErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 74 more)] === [2021-10-28 23:11:29,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:11:29,732 INFO L85 PathProgramCache]: Analyzing trace with hash 2144040275, now seen corresponding path program 1 times [2021-10-28 23:11:29,732 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:11:29,732 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2044524676] [2021-10-28 23:11:29,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:11:29,733 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:11:29,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:11:29,734 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:11:29,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-28 23:11:30,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:11:30,059 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-28 23:11:30,069 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:11:30,160 INFO L354 Elim1Store]: treesize reduction 34, result has 38.2 percent of original size [2021-10-28 23:11:30,161 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 26 [2021-10-28 23:11:30,292 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2021-10-28 23:11:30,492 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 15 [2021-10-28 23:11:30,767 INFO L354 Elim1Store]: treesize reduction 20, result has 28.6 percent of original size [2021-10-28 23:11:30,768 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 28 [2021-10-28 23:11:30,860 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 23:11:30,861 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:11:31,537 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2021-10-28 23:11:31,785 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 23:11:31,785 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:11:31,785 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2044524676] [2021-10-28 23:11:31,785 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2044524676] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:11:31,786 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:11:31,786 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 6] imperfect sequences [] total 13 [2021-10-28 23:11:31,786 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876072924] [2021-10-28 23:11:31,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-28 23:11:31,787 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:11:31,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-28 23:11:31,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2021-10-28 23:11:31,788 INFO L87 Difference]: Start difference. First operand 55 states and 58 transitions. Second operand has 14 states, 13 states have (on average 2.769230769230769) internal successors, (36), 12 states have internal predecessors, (36), 6 states have call successors, (9), 5 states have call predecessors, (9), 7 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2021-10-28 23:12:48,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:12:48,783 INFO L93 Difference]: Finished difference Result 57 states and 59 transitions. [2021-10-28 23:12:48,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 23:12:48,784 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.769230769230769) internal successors, (36), 12 states have internal predecessors, (36), 6 states have call successors, (9), 5 states have call predecessors, (9), 7 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) Word has length 29 [2021-10-28 23:12:48,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:12:48,785 INFO L225 Difference]: With dead ends: 57 [2021-10-28 23:12:48,785 INFO L226 Difference]: Without dead ends: 42 [2021-10-28 23:12:48,786 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 39 SyntacticMatches, 7 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 10.8s TimeCoverageRelationStatistics Valid=96, Invalid=320, Unknown=4, NotChecked=0, Total=420 [2021-10-28 23:12:48,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-10-28 23:12:48,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2021-10-28 23:12:48,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 26 states have (on average 1.0384615384615385) internal successors, (27), 27 states have internal predecessors, (27), 8 states have call successors, (8), 8 states have call predecessors, (8), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-10-28 23:12:48,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 42 transitions. [2021-10-28 23:12:48,791 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 42 transitions. Word has length 29 [2021-10-28 23:12:48,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:12:48,792 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 42 transitions. [2021-10-28 23:12:48,792 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.769230769230769) internal successors, (36), 12 states have internal predecessors, (36), 6 states have call successors, (9), 5 states have call predecessors, (9), 7 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2021-10-28 23:12:48,792 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 42 transitions. [2021-10-28 23:12:48,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-10-28 23:12:48,794 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:12:48,795 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, 1, 1, 1, 1, 1] [2021-10-28 23:12:48,813 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-28 23:12:49,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:12:49,009 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 74 more)] === [2021-10-28 23:12:49,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:12:49,009 INFO L85 PathProgramCache]: Analyzing trace with hash -1970951303, now seen corresponding path program 1 times [2021-10-28 23:12:49,010 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:12:49,010 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1020181814] [2021-10-28 23:12:49,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:12:49,010 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:12:49,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:12:49,011 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:12:49,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-28 23:12:49,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:12:49,394 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:12:49,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:12:49,555 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 23:12:49,555 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:12:49,753 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 23:12:49,755 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:12:49,755 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1020181814] [2021-10-28 23:12:49,755 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1020181814] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:12:49,755 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:12:49,755 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-28 23:12:49,756 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182904018] [2021-10-28 23:12:49,756 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:12:49,756 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:12:49,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:12:49,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:12:49,758 INFO L87 Difference]: Start difference. First operand 42 states and 42 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) [2021-10-28 23:12:49,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:12:49,771 INFO L93 Difference]: Finished difference Result 42 states and 41 transitions. [2021-10-28 23:12:49,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:12:49,772 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) Word has length 37 [2021-10-28 23:12:49,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:12:49,775 INFO L225 Difference]: With dead ends: 42 [2021-10-28 23:12:49,775 INFO L226 Difference]: Without dead ends: 42 [2021-10-28 23:12:49,775 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 70 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 23:12:49,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-10-28 23:12:49,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2021-10-28 23:12:49,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 26 states have (on average 1.0) internal successors, (26), 26 states have internal predecessors, (26), 8 states have call successors, (8), 8 states have call predecessors, (8), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-10-28 23:12:49,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 41 transitions. [2021-10-28 23:12:49,779 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 41 transitions. Word has length 37 [2021-10-28 23:12:49,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:12:49,780 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 41 transitions. [2021-10-28 23:12:49,780 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) [2021-10-28 23:12:49,780 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 41 transitions. [2021-10-28 23:12:49,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-10-28 23:12:49,782 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:12:49,782 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:12:49,799 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-10-28 23:12:49,993 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:12:49,993 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 74 more)] === [2021-10-28 23:12:49,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:12:49,994 INFO L85 PathProgramCache]: Analyzing trace with hash -1874562474, now seen corresponding path program 1 times [2021-10-28 23:12:49,994 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:12:49,994 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1730483212] [2021-10-28 23:12:49,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:12:49,994 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:12:49,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:12:49,995 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:12:49,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-10-28 23:12:50,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:12:50,383 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:12:50,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:12:50,489 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-10-28 23:12:50,490 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 23:12:50,491 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-10-28 23:12:50,493 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION [2021-10-28 23:12:50,493 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION [2021-10-28 23:12:50,494 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION [2021-10-28 23:12:50,494 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION [2021-10-28 23:12:50,494 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION [2021-10-28 23:12:50,494 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION [2021-10-28 23:12:50,495 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION [2021-10-28 23:12:50,495 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION [2021-10-28 23:12:50,495 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION [2021-10-28 23:12:50,495 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION [2021-10-28 23:12:50,495 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION [2021-10-28 23:12:50,496 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION [2021-10-28 23:12:50,496 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION [2021-10-28 23:12:50,496 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION [2021-10-28 23:12:50,496 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION [2021-10-28 23:12:50,497 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION [2021-10-28 23:12:50,497 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION [2021-10-28 23:12:50,497 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION [2021-10-28 23:12:50,497 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION [2021-10-28 23:12:50,498 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION [2021-10-28 23:12:50,498 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION [2021-10-28 23:12:50,498 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION [2021-10-28 23:12:50,498 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION [2021-10-28 23:12:50,498 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION [2021-10-28 23:12:50,499 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION [2021-10-28 23:12:50,499 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION [2021-10-28 23:12:50,499 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION [2021-10-28 23:12:50,499 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION [2021-10-28 23:12:50,500 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION [2021-10-28 23:12:50,500 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION [2021-10-28 23:12:50,500 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION [2021-10-28 23:12:50,500 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION [2021-10-28 23:12:50,500 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION [2021-10-28 23:12:50,501 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION [2021-10-28 23:12:50,501 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION [2021-10-28 23:12:50,501 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION [2021-10-28 23:12:50,501 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION [2021-10-28 23:12:50,502 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION [2021-10-28 23:12:50,502 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION [2021-10-28 23:12:50,502 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION [2021-10-28 23:12:50,502 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION [2021-10-28 23:12:50,503 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION [2021-10-28 23:12:50,503 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:12:50,503 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:12:50,503 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:12:50,504 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:12:50,504 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:12:50,504 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:12:50,504 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION [2021-10-28 23:12:50,505 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION [2021-10-28 23:12:50,505 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION [2021-10-28 23:12:50,505 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION [2021-10-28 23:12:50,505 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION [2021-10-28 23:12:50,506 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION [2021-10-28 23:12:50,506 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION [2021-10-28 23:12:50,506 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION [2021-10-28 23:12:50,506 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:12:50,507 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:12:50,507 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:12:50,507 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:12:50,507 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:12:50,508 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:12:50,508 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION [2021-10-28 23:12:50,508 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION [2021-10-28 23:12:50,508 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION [2021-10-28 23:12:50,509 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION [2021-10-28 23:12:50,509 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION [2021-10-28 23:12:50,509 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION [2021-10-28 23:12:50,509 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION [2021-10-28 23:12:50,510 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION [2021-10-28 23:12:50,510 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr0REQUIRES_VIOLATION [2021-10-28 23:12:50,510 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr1REQUIRES_VIOLATION [2021-10-28 23:12:50,510 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe1_6Err0REQUIRES_VIOLATION [2021-10-28 23:12:50,511 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe1_6Err1REQUIRES_VIOLATION [2021-10-28 23:12:50,511 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe1_6Err2ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:12:50,511 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe1_6Err3ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:12:50,522 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe1_6Err4ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:12:50,538 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-10-28 23:12:50,738 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:12:50,741 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:12:50,746 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:12:50,763 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-10-28 23:12:50,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:12:50 BoogieIcfgContainer [2021-10-28 23:12:50,787 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:12:50,788 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:12:50,788 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:12:50,788 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:12:50,789 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:11:03" (3/4) ... [2021-10-28 23:12:50,793 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 23:12:50,793 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:12:50,794 INFO L168 Benchmark]: Toolchain (without parser) took 110626.63 ms. Allocated memory was 62.9 MB in the beginning and 132.1 MB in the end (delta: 69.2 MB). Free memory was 40.8 MB in the beginning and 101.6 MB in the end (delta: -60.8 MB). Peak memory consumption was 10.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:12:50,794 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 62.9 MB. Free memory is still 43.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:12:50,795 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1008.09 ms. Allocated memory is still 62.9 MB. Free memory was 40.6 MB in the beginning and 29.1 MB in the end (delta: 11.5 MB). Peak memory consumption was 16.9 MB. Max. memory is 16.1 GB. [2021-10-28 23:12:50,795 INFO L168 Benchmark]: Boogie Preprocessor took 166.01 ms. Allocated memory is still 62.9 MB. Free memory was 29.1 MB in the beginning and 24.3 MB in the end (delta: 4.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-28 23:12:50,796 INFO L168 Benchmark]: RCFGBuilder took 1788.67 ms. Allocated memory was 62.9 MB in the beginning and 90.2 MB in the end (delta: 27.3 MB). Free memory was 24.1 MB in the beginning and 49.8 MB in the end (delta: -25.8 MB). Peak memory consumption was 10.9 MB. Max. memory is 16.1 GB. [2021-10-28 23:12:50,796 INFO L168 Benchmark]: TraceAbstraction took 107648.63 ms. Allocated memory was 90.2 MB in the beginning and 132.1 MB in the end (delta: 41.9 MB). Free memory was 49.6 MB in the beginning and 101.6 MB in the end (delta: -52.0 MB). Peak memory consumption was 62.3 MB. Max. memory is 16.1 GB. [2021-10-28 23:12:50,797 INFO L168 Benchmark]: Witness Printer took 5.41 ms. Allocated memory is still 132.1 MB. Free memory is still 101.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:12:50,799 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 62.9 MB. Free memory is still 43.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1008.09 ms. Allocated memory is still 62.9 MB. Free memory was 40.6 MB in the beginning and 29.1 MB in the end (delta: 11.5 MB). Peak memory consumption was 16.9 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 166.01 ms. Allocated memory is still 62.9 MB. Free memory was 29.1 MB in the beginning and 24.3 MB in the end (delta: 4.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1788.67 ms. Allocated memory was 62.9 MB in the beginning and 90.2 MB in the end (delta: 27.3 MB). Free memory was 24.1 MB in the beginning and 49.8 MB in the end (delta: -25.8 MB). Peak memory consumption was 10.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 107648.63 ms. Allocated memory was 90.2 MB in the beginning and 132.1 MB in the end (delta: 41.9 MB). Free memory was 49.6 MB in the beginning and 101.6 MB in the end (delta: -52.0 MB). Peak memory consumption was 62.3 MB. Max. memory is 16.1 GB. * Witness Printer took 5.41 ms. Allocated memory is still 132.1 MB. Free memory is still 101.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.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: 790]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 790. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L782] struct A a6; VAL [\old(a6)=null, \old(a6)=null, \old(ldv_global_msg_list)=null, \old(ldv_global_msg_list)=null, a6={3:0}, ldv_global_msg_list={-2147483648:0}] [L791] CALL entry_point() VAL [a6={3:0}, ldv_global_msg_list={-2147483648:0}] [L784] CALL, EXPR probe1_6(&a6) VAL [a={3:0}, a6={3:0}, ldv_global_msg_list={-2147483648:0}] [L764] int ret = - -3; VAL [a={3:0}, a={3:0}, a6={3:0}, ldv_global_msg_list={-2147483648:0}, ret=3] [L765] CALL, EXPR ldv_malloc(sizeof(int)) VAL [\old(size)=4, a6={3:0}, ldv_global_msg_list={-2147483648:0}] [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L765] RET, EXPR ldv_malloc(sizeof(int)) VAL [a={3:0}, a={3:0}, a6={3:0}, ldv_global_msg_list={-2147483648:0}, ldv_malloc(sizeof(int))={1:0}, ret=3] [L765] int *p = (int *)ldv_malloc(sizeof(int)); [L766] COND FALSE !(p==0) VAL [a={3:0}, a={3:0}, a6={3:0}, ldv_global_msg_list={-2147483648:0}, p={1:0}, ret=3] [L768] CALL, EXPR f6() VAL [a6={3:0}, ldv_global_msg_list={-2147483648:0}] [L758] return __VERIFIER_nondet_int(); [L768] RET, EXPR f6() VAL [a={3:0}, a={3:0}, a6={3:0}, f6()=0, ldv_global_msg_list={-2147483648:0}, p={1:0}, ret=3] [L768] ret = f6() [L769] COND FALSE !(ret<0) VAL [a={3:0}, a={3:0}, a6={3:0}, ldv_global_msg_list={-2147483648:0}, p={1:0}, ret=0] [L771] CALL, EXPR g6() VAL [a6={3:0}, ldv_global_msg_list={-2147483648:0}] [L761] return __VERIFIER_nondet_int(); [L771] RET, EXPR g6() VAL [a={3:0}, a={3:0}, a6={3:0}, g6()=0, ldv_global_msg_list={-2147483648:0}, p={1:0}, ret=0] [L771] ret = g6() [L772] COND FALSE !(ret<0) VAL [a={3:0}, a={3:0}, a6={3:0}, ldv_global_msg_list={-2147483648:0}, p={1:0}, ret=0] [L774] a->p = p VAL [a={3:0}, a={3:0}, a6={3:0}, ldv_global_msg_list={-2147483648:0}, p={1:0}, ret=0] [L775] return 0; VAL [\result=0, a={3:0}, a={3:0}, a6={3:0}, ldv_global_msg_list={-2147483648:0}, p={1:0}, ret=0] [L784] RET, EXPR probe1_6(&a6) VAL [a6={3:0}, ldv_global_msg_list={-2147483648:0}, probe1_6(&a6)=0] [L784] int ret = probe1_6(&a6); [L785] COND TRUE ret==0 VAL [a6={3:0}, ldv_global_msg_list={-2147483648:0}, ret=0] [L786] FCALL disconnect_2_6(&a6) VAL [a6={3:0}, ldv_global_msg_list={-2147483648:0}, ret=0] [L788] a6.p = 0 VAL [a6={3:0}, ldv_global_msg_list={-2147483648:0}, ret=0] [L791] RET entry_point() VAL [a6={3:0}, ldv_global_msg_list={-2147483648:0}] - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 788]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 788]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 774]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 774]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 777]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 777]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 777]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 51 procedures, 365 locations, 78 error locations. Started 1 CEGAR loops. OverallTime: 107.5s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 85.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 549 SDtfs, 753 SDslu, 1159 SDs, 0 SdLazy, 799 SolverSat, 254 SolverUnsat, 34 SolverUnknown, 0 SolverNotchecked, 72.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 564 GetRequests, 448 SyntacticMatches, 31 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 20.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=125occurred in iteration=0, InterpolantAutomatonStates: 80, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 52 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 15.8s InterpolantComputationTime, 316 NumberOfCodeBlocks, 316 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 528 ConstructedInterpolants, 45 QuantifiedInterpolants, 3205 SizeOfPredicates, 28 NumberOfNonLiveVariables, 1231 ConjunctsInSsa, 96 ConjunctsInUnsatCore, 22 InterpolantComputations, 22 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-28 23:12:50,849 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf9914e-4e3f-4748-8526-d8095eb7742f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...