./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_1-2.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_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/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_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_1-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/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_196fdb5a-eae7-4853-9c21-c9e4cc6537de/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 11cd0b9da22b48a523bf90b6f5cbc98a0e4e6a8f70a83fae3d817f12f25f212c ................................................................................................................................... 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_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/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_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_1-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/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_196fdb5a-eae7-4853-9c21-c9e4cc6537de/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 11cd0b9da22b48a523bf90b6f5cbc98a0e4e6a8f70a83fae3d817f12f25f212c ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:07:35,225 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:07:35,229 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:07:35,302 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:07:35,303 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:07:35,308 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:07:35,311 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:07:35,316 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:07:35,320 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:07:35,327 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:07:35,329 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:07:35,331 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:07:35,332 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:07:35,335 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:07:35,338 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:07:35,344 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:07:35,347 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:07:35,348 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:07:35,351 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:07:35,361 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:07:35,363 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:07:35,365 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:07:35,370 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:07:35,371 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:07:35,382 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:07:35,383 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:07:35,384 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:07:35,386 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:07:35,387 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:07:35,388 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:07:35,389 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:07:35,390 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:07:35,391 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:07:35,393 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:07:35,395 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:07:35,395 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:07:35,396 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:07:35,396 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:07:35,397 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:07:35,398 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:07:35,399 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:07:35,400 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-10-28 23:07:35,455 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:07:35,455 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:07:35,456 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:07:35,456 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:07:35,459 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:07:35,460 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:07:35,460 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:07:35,460 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:07:35,461 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:07:35,461 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:07:35,462 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:07:35,462 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:07:35,463 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:07:35,463 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 23:07:35,463 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 23:07:35,463 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 23:07:35,464 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:07:35,464 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 23:07:35,464 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:07:35,464 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:07:35,465 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:07:35,465 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:07:35,465 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:07:35,466 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:07:35,466 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:07:35,466 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:07:35,466 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:07:35,467 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 23:07:35,467 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:07:35,469 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_196fdb5a-eae7-4853-9c21-c9e4cc6537de/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 11cd0b9da22b48a523bf90b6f5cbc98a0e4e6a8f70a83fae3d817f12f25f212c [2021-10-28 23:07:35,831 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:07:35,865 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:07:35,867 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:07:35,869 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:07:35,870 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:07:35,871 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_1-2.i [2021-10-28 23:07:35,960 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/data/c90e86711/7be207e4d74947039f5e57b6d5c5a692/FLAGbae3cd770 [2021-10-28 23:07:36,760 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:07:36,761 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/sv-benchmarks/c/ldv-memsafety/memleaks_test22_1-2.i [2021-10-28 23:07:36,779 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/data/c90e86711/7be207e4d74947039f5e57b6d5c5a692/FLAGbae3cd770 [2021-10-28 23:07:36,936 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/data/c90e86711/7be207e4d74947039f5e57b6d5c5a692 [2021-10-28 23:07:36,942 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:07:36,944 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 23:07:36,948 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:07:36,948 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:07:36,952 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:07:36,953 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:07:36" (1/1) ... [2021-10-28 23:07:36,956 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f526cbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:07:36, skipping insertion in model container [2021-10-28 23:07:36,956 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:07:36" (1/1) ... [2021-10-28 23:07:36,966 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:07:37,035 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:07:37,544 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:07:37,566 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 23:07:37,567 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@28c9d7e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:07:37, skipping insertion in model container [2021-10-28 23:07:37,567 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:07:37,568 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-10-28 23:07:37,571 INFO L168 Benchmark]: Toolchain (without parser) took 624.73 ms. Allocated memory was 86.0 MB in the beginning and 113.2 MB in the end (delta: 27.3 MB). Free memory was 48.2 MB in the beginning and 84.2 MB in the end (delta: -36.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:07:37,572 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 86.0 MB. Free memory was 66.1 MB in the beginning and 66.1 MB in the end (delta: 38.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:07:37,573 INFO L168 Benchmark]: CACSL2BoogieTranslator took 619.93 ms. Allocated memory was 86.0 MB in the beginning and 113.2 MB in the end (delta: 27.3 MB). Free memory was 48.0 MB in the beginning and 84.2 MB in the end (delta: -36.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:07:37,575 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 86.0 MB. Free memory was 66.1 MB in the beginning and 66.1 MB in the end (delta: 38.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 619.93 ms. Allocated memory was 86.0 MB in the beginning and 113.2 MB in the end (delta: 27.3 MB). Free memory was 48.0 MB in the beginning and 84.2 MB in the end (delta: -36.2 MB). Peak memory consumption was 4.2 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 23:07:40,009 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:07:40,013 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:07:40,063 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:07:40,064 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:07:40,068 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:07:40,070 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:07:40,077 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:07:40,080 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:07:40,086 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:07:40,088 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:07:40,090 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:07:40,091 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:07:40,093 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:07:40,096 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:07:40,101 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:07:40,102 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:07:40,104 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:07:40,106 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:07:40,113 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:07:40,116 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:07:40,117 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:07:40,120 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:07:40,122 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:07:40,131 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:07:40,131 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:07:40,132 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:07:40,134 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:07:40,135 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:07:40,136 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:07:40,136 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:07:40,150 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:07:40,152 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:07:40,153 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:07:40,155 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:07:40,155 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:07:40,156 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:07:40,156 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:07:40,157 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:07:40,159 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:07:40,159 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:07:40,160 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-28 23:07:40,203 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:07:40,203 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:07:40,204 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:07:40,204 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:07:40,206 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:07:40,207 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:07:40,207 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:07:40,207 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:07:40,207 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:07:40,208 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:07:40,209 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:07:40,209 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:07:40,209 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:07:40,210 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 23:07:40,210 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 23:07:40,210 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 23:07:40,210 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:07:40,211 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 23:07:40,211 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-28 23:07:40,211 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-28 23:07:40,211 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:07:40,212 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:07:40,212 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:07:40,212 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:07:40,212 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:07:40,212 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:07:40,213 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:07:40,213 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:07:40,214 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-28 23:07:40,214 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-28 23:07:40,214 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:07:40,214 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-28 23:07:40,215 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_196fdb5a-eae7-4853-9c21-c9e4cc6537de/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 11cd0b9da22b48a523bf90b6f5cbc98a0e4e6a8f70a83fae3d817f12f25f212c [2021-10-28 23:07:40,628 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:07:40,651 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:07:40,654 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:07:40,655 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:07:40,656 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:07:40,657 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_1-2.i [2021-10-28 23:07:40,722 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/data/3dc61cec3/1f6944ce4ed24f459c73b2f7256e1902/FLAGa1733bda1 [2021-10-28 23:07:41,420 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:07:41,421 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/sv-benchmarks/c/ldv-memsafety/memleaks_test22_1-2.i [2021-10-28 23:07:41,440 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/data/3dc61cec3/1f6944ce4ed24f459c73b2f7256e1902/FLAGa1733bda1 [2021-10-28 23:07:41,679 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/data/3dc61cec3/1f6944ce4ed24f459c73b2f7256e1902 [2021-10-28 23:07:41,683 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:07:41,686 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 23:07:41,690 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:07:41,691 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:07:41,695 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:07:41,696 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:07:41" (1/1) ... [2021-10-28 23:07:41,697 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@200bdad1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:07:41, skipping insertion in model container [2021-10-28 23:07:41,697 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:07:41" (1/1) ... [2021-10-28 23:07:41,706 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:07:41,785 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:07:42,338 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:07:42,366 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-28 23:07:42,382 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:07:42,470 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:07:42,484 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:07:42,575 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:07:42,650 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:07:42,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:07:42 WrapperNode [2021-10-28 23:07:42,650 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:07:42,651 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:07:42,651 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:07:42,651 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:07:42,662 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:07:42" (1/1) ... [2021-10-28 23:07:42,662 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:07:42" (1/1) ... [2021-10-28 23:07:42,688 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:07:42" (1/1) ... [2021-10-28 23:07:42,689 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:07:42" (1/1) ... [2021-10-28 23:07:42,722 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:07:42" (1/1) ... [2021-10-28 23:07:42,728 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:07:42" (1/1) ... [2021-10-28 23:07:42,736 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:07:42" (1/1) ... [2021-10-28 23:07:42,747 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:07:42,748 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:07:42,749 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:07:42,749 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:07:42,750 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:07:42" (1/1) ... [2021-10-28 23:07:42,757 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:07:42,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:07:42,790 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:07:42,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:07:42,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-28 23:07:42,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:07:42,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-10-28 23:07:42,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-10-28 23:07:42,839 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-10-28 23:07:42,839 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-10-28 23:07:42,840 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-10-28 23:07:42,840 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-10-28 23:07:42,840 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-10-28 23:07:42,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-10-28 23:07:42,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-10-28 23:07:42,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-10-28 23:07:42,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-10-28 23:07:42,841 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-10-28 23:07:42,846 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-10-28 23:07:42,847 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-10-28 23:07:42,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-10-28 23:07:42,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-10-28 23:07:42,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-10-28 23:07:42,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-10-28 23:07:42,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-10-28 23:07:42,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-10-28 23:07:42,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-10-28 23:07:42,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-10-28 23:07:42,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-10-28 23:07:42,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-10-28 23:07:42,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-10-28 23:07:42,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-10-28 23:07:42,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-10-28 23:07:42,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-10-28 23:07:42,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-10-28 23:07:42,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-10-28 23:07:42,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-10-28 23:07:42,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-10-28 23:07:42,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-10-28 23:07:42,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-10-28 23:07:42,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-10-28 23:07:42,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-10-28 23:07:42,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-10-28 23:07:42,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-10-28 23:07:42,851 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-10-28 23:07:42,851 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-10-28 23:07:42,851 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-10-28 23:07:42,852 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-28 23:07:42,852 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-10-28 23:07:42,852 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-10-28 23:07:42,853 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-10-28 23:07:42,853 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-10-28 23:07:42,854 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-10-28 23:07:42,854 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-10-28 23:07:42,854 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-10-28 23:07:42,854 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-10-28 23:07:42,854 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-10-28 23:07:42,854 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-10-28 23:07:42,854 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-10-28 23:07:42,855 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-10-28 23:07:42,855 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-10-28 23:07:42,855 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-10-28 23:07:42,856 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-10-28 23:07:42,856 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-10-28 23:07:42,856 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-10-28 23:07:42,856 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-10-28 23:07:42,857 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-10-28 23:07:42,857 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-10-28 23:07:42,858 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-10-28 23:07:42,858 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-10-28 23:07:42,860 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-10-28 23:07:42,860 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-10-28 23:07:42,860 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-10-28 23:07:42,860 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-10-28 23:07:42,860 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-10-28 23:07:42,861 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-10-28 23:07:42,861 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-10-28 23:07:42,861 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-10-28 23:07:42,861 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-10-28 23:07:42,861 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-10-28 23:07:42,862 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-10-28 23:07:42,862 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-10-28 23:07:42,862 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-10-28 23:07:42,863 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-10-28 23:07:42,863 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-10-28 23:07:42,863 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-10-28 23:07:42,864 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-10-28 23:07:42,864 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-10-28 23:07:42,864 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-10-28 23:07:42,864 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-10-28 23:07:42,864 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-10-28 23:07:42,864 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-10-28 23:07:42,865 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-10-28 23:07:42,865 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-10-28 23:07:42,865 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-10-28 23:07:42,865 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-10-28 23:07:42,865 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-10-28 23:07:42,865 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-10-28 23:07:42,866 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-10-28 23:07:42,866 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-10-28 23:07:42,866 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-10-28 23:07:42,866 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-10-28 23:07:42,866 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-10-28 23:07:42,866 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-10-28 23:07:42,867 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-10-28 23:07:42,867 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-10-28 23:07:42,867 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-10-28 23:07:42,868 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-10-28 23:07:42,868 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-10-28 23:07:42,869 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-10-28 23:07:42,869 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-10-28 23:07:42,870 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-10-28 23:07:42,870 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-10-28 23:07:42,870 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-10-28 23:07:42,870 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-28 23:07:42,880 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-10-28 23:07:42,880 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-10-28 23:07:42,880 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-10-28 23:07:42,880 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-10-28 23:07:42,880 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-10-28 23:07:42,881 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-10-28 23:07:42,881 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-10-28 23:07:42,881 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-10-28 23:07:42,882 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-10-28 23:07:42,882 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-10-28 23:07:42,882 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-10-28 23:07:42,883 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-10-28 23:07:42,884 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-10-28 23:07:42,886 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-10-28 23:07:42,887 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-10-28 23:07:42,887 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-10-28 23:07:42,888 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-10-28 23:07:42,888 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-10-28 23:07:42,890 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-10-28 23:07:42,890 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-10-28 23:07:42,890 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-10-28 23:07:42,891 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-10-28 23:07:42,896 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-10-28 23:07:42,896 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-10-28 23:07:42,896 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-10-28 23:07:42,896 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-10-28 23:07:42,896 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-10-28 23:07:42,897 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-10-28 23:07:42,897 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-10-28 23:07:42,897 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-10-28 23:07:42,897 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-10-28 23:07:42,897 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-10-28 23:07:42,897 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-10-28 23:07:42,897 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-10-28 23:07:42,898 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-10-28 23:07:42,898 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-10-28 23:07:42,898 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-10-28 23:07:42,898 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-10-28 23:07:42,898 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-10-28 23:07:42,898 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-10-28 23:07:42,898 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-10-28 23:07:42,899 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-10-28 23:07:42,899 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-10-28 23:07:42,899 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-10-28 23:07:42,899 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-28 23:07:42,899 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-10-28 23:07:42,899 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-10-28 23:07:42,899 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-10-28 23:07:42,899 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-10-28 23:07:42,899 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-10-28 23:07:42,899 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-28 23:07:42,899 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-10-28 23:07:42,900 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-10-28 23:07:42,900 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-10-28 23:07:42,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-28 23:07:42,900 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-10-28 23:07:42,900 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-10-28 23:07:42,900 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-10-28 23:07:42,900 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-28 23:07:42,901 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-10-28 23:07:42,901 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-10-28 23:07:42,901 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-10-28 23:07:42,901 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-10-28 23:07:42,901 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-10-28 23:07:42,901 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-10-28 23:07:42,901 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 23:07:42,901 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-10-28 23:07:42,902 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-10-28 23:07:42,902 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-10-28 23:07:42,902 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-10-28 23:07:42,902 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-10-28 23:07:42,902 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-28 23:07:42,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-28 23:07:42,902 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-10-28 23:07:42,903 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-10-28 23:07:42,903 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-10-28 23:07:42,903 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-10-28 23:07:42,903 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-10-28 23:07:42,903 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-10-28 23:07:42,903 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-10-28 23:07:42,903 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-10-28 23:07:42,903 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-10-28 23:07:42,904 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-10-28 23:07:42,904 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-10-28 23:07:42,904 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-10-28 23:07:42,904 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-10-28 23:07:42,904 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-10-28 23:07:42,904 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-10-28 23:07:42,904 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-10-28 23:07:42,905 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-10-28 23:07:42,905 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-10-28 23:07:42,905 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-28 23:07:42,905 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-28 23:07:42,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:07:42,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-28 23:07:42,905 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:07:42,905 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-10-28 23:07:42,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-10-28 23:07:42,906 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-10-28 23:07:42,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-10-28 23:07:42,906 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-10-28 23:07:43,574 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 23:07:44,013 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 23:07:44,346 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:07:44,347 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-10-28 23:07:44,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:07:44 BoogieIcfgContainer [2021-10-28 23:07:44,350 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:07:44,352 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:07:44,352 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:07:44,355 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:07:44,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:07:41" (1/3) ... [2021-10-28 23:07:44,356 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7874ed50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:07:44, skipping insertion in model container [2021-10-28 23:07:44,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:07:42" (2/3) ... [2021-10-28 23:07:44,356 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7874ed50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:07:44, skipping insertion in model container [2021-10-28 23:07:44,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:07:44" (3/3) ... [2021-10-28 23:07:44,358 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test22_1-2.i [2021-10-28 23:07:44,363 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:07:44,364 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 71 error locations. [2021-10-28 23:07:44,408 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:07:44,414 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 23:07:44,415 INFO L340 AbstractCegarLoop]: Starting to check reachability of 71 error locations. [2021-10-28 23:07:44,432 INFO L276 IsEmpty]: Start isEmpty. Operand has 150 states, 83 states have (on average 1.4698795180722892) internal successors, (122), 113 states have internal predecessors, (122), 19 states have call successors, (19), 18 states have call predecessors, (19), 18 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-10-28 23:07:44,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-28 23:07:44,440 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:07:44,441 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:07:44,441 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_kobject_createErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 23:07:44,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:07:44,447 INFO L85 PathProgramCache]: Analyzing trace with hash -1853453812, now seen corresponding path program 1 times [2021-10-28 23:07:44,459 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:07:44,460 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1284748686] [2021-10-28 23:07:44,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:07:44,461 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:07:44,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:07:44,468 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:07:44,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-28 23:07:44,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:07:44,699 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:07:44,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:07:44,857 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 23:07:44,916 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 23:07:44,916 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:07:45,031 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 23:07:45,032 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:07:45,032 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1284748686] [2021-10-28 23:07:45,033 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1284748686] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:07:45,033 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:07:45,034 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-28 23:07:45,036 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029722101] [2021-10-28 23:07:45,041 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:07:45,041 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:07:45,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:07:45,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:07:45,061 INFO L87 Difference]: Start difference. First operand has 150 states, 83 states have (on average 1.4698795180722892) internal successors, (122), 113 states have internal predecessors, (122), 19 states have call successors, (19), 18 states have call predecessors, (19), 18 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 23:07:45,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:07:45,336 INFO L93 Difference]: Finished difference Result 132 states and 142 transitions. [2021-10-28 23:07:45,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:07:45,338 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2021-10-28 23:07:45,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:07:45,351 INFO L225 Difference]: With dead ends: 132 [2021-10-28 23:07:45,352 INFO L226 Difference]: Without dead ends: 129 [2021-10-28 23:07:45,353 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 27 SyntacticMatches, 3 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:07:45,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2021-10-28 23:07:45,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 123. [2021-10-28 23:07:45,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 69 states have (on average 1.4057971014492754) internal successors, (97), 90 states have internal predecessors, (97), 18 states have call successors, (18), 17 states have call predecessors, (18), 17 states have return successors, (18), 17 states have call predecessors, (18), 17 states have call successors, (18) [2021-10-28 23:07:45,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 133 transitions. [2021-10-28 23:07:45,405 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 133 transitions. Word has length 17 [2021-10-28 23:07:45,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:07:45,405 INFO L470 AbstractCegarLoop]: Abstraction has 123 states and 133 transitions. [2021-10-28 23:07:45,406 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 23:07:45,406 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 133 transitions. [2021-10-28 23:07:45,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-28 23:07:45,407 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:07:45,407 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:07:45,420 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-28 23:07:45,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:07:45,619 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_kobject_createErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 23:07:45,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:07:45,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1853453811, now seen corresponding path program 1 times [2021-10-28 23:07:45,621 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:07:45,621 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [919569026] [2021-10-28 23:07:45,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:07:45,621 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:07:45,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:07:45,623 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:07:45,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-28 23:07:45,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:07:45,804 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-28 23:07:45,806 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:07:45,854 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 23:07:45,944 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 23:07:45,944 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:07:46,360 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 23:07:46,361 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:07:46,361 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [919569026] [2021-10-28 23:07:46,361 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [919569026] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:07:46,361 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:07:46,362 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-10-28 23:07:46,362 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860597813] [2021-10-28 23:07:46,363 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 23:07:46,363 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:07:46,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 23:07:46,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-10-28 23:07:46,365 INFO L87 Difference]: Start difference. First operand 123 states and 133 transitions. Second operand has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 8 states have internal predecessors, (16), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 23:07:46,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:07:46,928 INFO L93 Difference]: Finished difference Result 128 states and 138 transitions. [2021-10-28 23:07:46,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 23:07:46,931 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 8 states have internal predecessors, (16), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 17 [2021-10-28 23:07:46,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:07:46,933 INFO L225 Difference]: With dead ends: 128 [2021-10-28 23:07:46,933 INFO L226 Difference]: Without dead ends: 128 [2021-10-28 23:07:46,934 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-10-28 23:07:46,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2021-10-28 23:07:46,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 123. [2021-10-28 23:07:46,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 68 states have (on average 1.411764705882353) internal successors, (96), 90 states have internal predecessors, (96), 18 states have call successors, (18), 17 states have call predecessors, (18), 17 states have return successors, (18), 17 states have call predecessors, (18), 17 states have call successors, (18) [2021-10-28 23:07:46,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 132 transitions. [2021-10-28 23:07:46,946 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 132 transitions. Word has length 17 [2021-10-28 23:07:46,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:07:46,947 INFO L470 AbstractCegarLoop]: Abstraction has 123 states and 132 transitions. [2021-10-28 23:07:46,947 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 8 states have internal predecessors, (16), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 23:07:46,947 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 132 transitions. [2021-10-28 23:07:46,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-28 23:07:46,948 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:07:46,949 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:07:46,964 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-28 23:07:47,161 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:07:47,162 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_kobject_createErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 23:07:47,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:07:47,162 INFO L85 PathProgramCache]: Analyzing trace with hash -1824824661, now seen corresponding path program 1 times [2021-10-28 23:07:47,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:07:47,163 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2035110568] [2021-10-28 23:07:47,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:07:47,163 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:07:47,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:07:47,164 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:07:47,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-28 23:07:47,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:07:47,343 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 23:07:47,344 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:07:47,443 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 23:07:47,443 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:07:47,554 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 23:07:47,554 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:07:47,555 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2035110568] [2021-10-28 23:07:47,555 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2035110568] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:07:47,555 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:07:47,555 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-28 23:07:47,555 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741321621] [2021-10-28 23:07:47,555 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:07:47,556 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:07:47,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:07:47,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:07:47,557 INFO L87 Difference]: Start difference. First operand 123 states and 132 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 23:07:47,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:07:47,587 INFO L93 Difference]: Finished difference Result 122 states and 129 transitions. [2021-10-28 23:07:47,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:07:47,588 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2021-10-28 23:07:47,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:07:47,590 INFO L225 Difference]: With dead ends: 122 [2021-10-28 23:07:47,590 INFO L226 Difference]: Without dead ends: 122 [2021-10-28 23:07:47,590 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:07:47,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-10-28 23:07:47,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 120. [2021-10-28 23:07:47,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 67 states have (on average 1.3880597014925373) internal successors, (93), 87 states have internal predecessors, (93), 17 states have call successors, (17), 17 states have call predecessors, (17), 17 states have return successors, (17), 17 states have call predecessors, (17), 16 states have call successors, (17) [2021-10-28 23:07:47,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 127 transitions. [2021-10-28 23:07:47,612 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 127 transitions. Word has length 17 [2021-10-28 23:07:47,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:07:47,612 INFO L470 AbstractCegarLoop]: Abstraction has 120 states and 127 transitions. [2021-10-28 23:07:47,613 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 23:07:47,616 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 127 transitions. [2021-10-28 23:07:47,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-28 23:07:47,618 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:07:47,618 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 23:07:47,634 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-28 23:07:47,818 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:07:47,819 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_atomic_sub_returnErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 23:07:47,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:07:47,820 INFO L85 PathProgramCache]: Analyzing trace with hash -779180921, now seen corresponding path program 1 times [2021-10-28 23:07:47,820 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:07:47,820 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1792874917] [2021-10-28 23:07:47,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:07:47,821 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:07:47,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:07:47,822 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:07:47,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-28 23:07:48,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:07:48,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:07:48,042 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:07:48,136 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 23:07:48,136 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:07:48,270 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 23:07:48,270 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:07:48,270 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1792874917] [2021-10-28 23:07:48,271 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1792874917] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:07:48,271 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:07:48,271 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-28 23:07:48,272 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925978116] [2021-10-28 23:07:48,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:07:48,272 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:07:48,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:07:48,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:07:48,277 INFO L87 Difference]: Start difference. First operand 120 states and 127 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, (9), 2 states have call predecessors, (9), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 23:07:48,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:07:48,309 INFO L93 Difference]: Finished difference Result 122 states and 128 transitions. [2021-10-28 23:07:48,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:07:48,310 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, (9), 2 states have call predecessors, (9), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 29 [2021-10-28 23:07:48,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:07:48,312 INFO L225 Difference]: With dead ends: 122 [2021-10-28 23:07:48,313 INFO L226 Difference]: Without dead ends: 122 [2021-10-28 23:07:48,313 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 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 23:07:48,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-10-28 23:07:48,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 120. [2021-10-28 23:07:48,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 67 states have (on average 1.373134328358209) internal successors, (92), 87 states have internal predecessors, (92), 17 states have call successors, (17), 17 states have call predecessors, (17), 17 states have return successors, (17), 17 states have call predecessors, (17), 16 states have call successors, (17) [2021-10-28 23:07:48,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 126 transitions. [2021-10-28 23:07:48,327 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 126 transitions. Word has length 29 [2021-10-28 23:07:48,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:07:48,327 INFO L470 AbstractCegarLoop]: Abstraction has 120 states and 126 transitions. [2021-10-28 23:07:48,328 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, (9), 2 states have call predecessors, (9), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 23:07:48,328 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 126 transitions. [2021-10-28 23:07:48,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-28 23:07:48,329 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:07:48,330 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 23:07:48,341 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-10-28 23:07:48,540 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:07:48,540 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_atomic_sub_returnErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 23:07:48,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:07:48,541 INFO L85 PathProgramCache]: Analyzing trace with hash -1776253274, now seen corresponding path program 1 times [2021-10-28 23:07:48,541 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:07:48,541 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1842616148] [2021-10-28 23:07:48,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:07:48,542 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:07:48,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:07:48,543 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:07:48,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-28 23:07:48,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:07:48,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-28 23:07:48,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:07:48,964 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 23:07:48,964 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:07:49,132 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 23:07:49,132 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:07:49,132 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1842616148] [2021-10-28 23:07:49,132 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1842616148] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:07:49,132 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:07:49,132 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-10-28 23:07:49,133 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894807123] [2021-10-28 23:07:49,133 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 23:07:49,133 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:07:49,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 23:07:49,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-28 23:07:49,134 INFO L87 Difference]: Start difference. First operand 120 states and 126 transitions. Second operand has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 23:07:49,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:07:49,191 INFO L93 Difference]: Finished difference Result 132 states and 138 transitions. [2021-10-28 23:07:49,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 23:07:49,194 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 29 [2021-10-28 23:07:49,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:07:49,196 INFO L225 Difference]: With dead ends: 132 [2021-10-28 23:07:49,196 INFO L226 Difference]: Without dead ends: 132 [2021-10-28 23:07:49,196 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-10-28 23:07:49,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2021-10-28 23:07:49,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 128. [2021-10-28 23:07:49,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 72 states have (on average 1.3472222222222223) internal successors, (97), 93 states have internal predecessors, (97), 18 states have call successors, (18), 18 states have call predecessors, (18), 19 states have return successors, (19), 18 states have call predecessors, (19), 17 states have call successors, (19) [2021-10-28 23:07:49,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 134 transitions. [2021-10-28 23:07:49,210 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 134 transitions. Word has length 29 [2021-10-28 23:07:49,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:07:49,211 INFO L470 AbstractCegarLoop]: Abstraction has 128 states and 134 transitions. [2021-10-28 23:07:49,211 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 23:07:49,211 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 134 transitions. [2021-10-28 23:07:49,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-28 23:07:49,213 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:07:49,213 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] [2021-10-28 23:07:49,235 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-28 23:07:49,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:07:49,429 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 23:07:49,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:07:49,430 INFO L85 PathProgramCache]: Analyzing trace with hash 438885256, now seen corresponding path program 1 times [2021-10-28 23:07:49,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:07:49,430 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2074009375] [2021-10-28 23:07:49,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:07:49,431 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:07:49,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:07:49,432 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:07:49,477 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-28 23:07:49,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:07:49,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-28 23:07:49,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:07:49,779 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 23:07:49,779 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:07:50,016 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 23:07:50,017 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:07:50,017 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2074009375] [2021-10-28 23:07:50,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2074009375] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:07:50,017 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:07:50,018 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-28 23:07:50,018 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660781978] [2021-10-28 23:07:50,020 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:07:50,020 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:07:50,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:07:50,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:07:50,022 INFO L87 Difference]: Start difference. First operand 128 states and 134 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-10-28 23:07:50,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:07:50,194 INFO L93 Difference]: Finished difference Result 139 states and 144 transitions. [2021-10-28 23:07:50,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:07:50,195 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 27 [2021-10-28 23:07:50,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:07:50,197 INFO L225 Difference]: With dead ends: 139 [2021-10-28 23:07:50,197 INFO L226 Difference]: Without dead ends: 124 [2021-10-28 23:07:50,198 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:07:50,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2021-10-28 23:07:50,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 116. [2021-10-28 23:07:50,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 64 states have (on average 1.375) internal successors, (88), 84 states have internal predecessors, (88), 17 states have call successors, (17), 17 states have call predecessors, (17), 16 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-10-28 23:07:50,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 121 transitions. [2021-10-28 23:07:50,220 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 121 transitions. Word has length 27 [2021-10-28 23:07:50,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:07:50,220 INFO L470 AbstractCegarLoop]: Abstraction has 116 states and 121 transitions. [2021-10-28 23:07:50,222 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-10-28 23:07:50,223 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 121 transitions. [2021-10-28 23:07:50,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-28 23:07:50,226 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:07:50,226 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:07:50,248 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-28 23:07:50,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:07:50,450 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_kref_initErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 23:07:50,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:07:50,451 INFO L85 PathProgramCache]: Analyzing trace with hash -972322523, now seen corresponding path program 1 times [2021-10-28 23:07:50,451 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:07:50,451 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [638833859] [2021-10-28 23:07:50,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:07:50,452 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:07:50,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:07:50,455 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:07:50,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-28 23:07:50,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:07:50,687 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-28 23:07:50,690 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:07:50,787 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 23:07:50,788 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:07:50,917 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 23:07:50,917 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:07:50,918 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [638833859] [2021-10-28 23:07:50,918 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [638833859] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:07:50,918 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:07:50,918 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-28 23:07:50,918 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713023561] [2021-10-28 23:07:50,919 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 23:07:50,919 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:07:50,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:07:50,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:07:50,920 INFO L87 Difference]: Start difference. First operand 116 states and 121 transitions. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-10-28 23:07:50,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:07:50,972 INFO L93 Difference]: Finished difference Result 122 states and 127 transitions. [2021-10-28 23:07:50,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 23:07:50,975 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 32 [2021-10-28 23:07:50,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:07:50,977 INFO L225 Difference]: With dead ends: 122 [2021-10-28 23:07:50,977 INFO L226 Difference]: Without dead ends: 118 [2021-10-28 23:07:50,977 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2021-10-28 23:07:50,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2021-10-28 23:07:50,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2021-10-28 23:07:50,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 66 states have (on average 1.3636363636363635) internal successors, (90), 86 states have internal predecessors, (90), 17 states have call successors, (17), 17 states have call predecessors, (17), 16 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-10-28 23:07:50,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 123 transitions. [2021-10-28 23:07:50,984 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 123 transitions. Word has length 32 [2021-10-28 23:07:50,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:07:50,985 INFO L470 AbstractCegarLoop]: Abstraction has 118 states and 123 transitions. [2021-10-28 23:07:50,985 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-10-28 23:07:50,985 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 123 transitions. [2021-10-28 23:07:50,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-28 23:07:50,986 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:07:50,987 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:07:51,004 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-28 23:07:51,200 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:07:51,201 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_kref_initErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 23:07:51,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:07:51,201 INFO L85 PathProgramCache]: Analyzing trace with hash -1413246651, now seen corresponding path program 1 times [2021-10-28 23:07:51,202 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:07:51,202 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [787343685] [2021-10-28 23:07:51,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:07:51,202 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:07:51,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:07:51,203 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:07:51,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-28 23:07:51,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:07:51,473 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 23:07:51,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:07:51,606 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:07:51,606 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:07:51,822 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:07:51,822 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:07:51,823 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [787343685] [2021-10-28 23:07:51,823 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [787343685] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-28 23:07:51,823 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:07:51,823 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-10-28 23:07:51,823 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443041869] [2021-10-28 23:07:51,824 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 23:07:51,824 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:07:51,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 23:07:51,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-10-28 23:07:51,826 INFO L87 Difference]: Start difference. First operand 118 states and 123 transitions. Second operand has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-10-28 23:07:52,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:07:52,018 INFO L93 Difference]: Finished difference Result 126 states and 133 transitions. [2021-10-28 23:07:52,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 23:07:52,018 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 34 [2021-10-28 23:07:52,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:07:52,020 INFO L225 Difference]: With dead ends: 126 [2021-10-28 23:07:52,020 INFO L226 Difference]: Without dead ends: 122 [2021-10-28 23:07:52,020 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2021-10-28 23:07:52,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-10-28 23:07:52,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2021-10-28 23:07:52,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 70 states have (on average 1.3428571428571427) internal successors, (94), 90 states have internal predecessors, (94), 17 states have call successors, (17), 17 states have call predecessors, (17), 16 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-10-28 23:07:52,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 127 transitions. [2021-10-28 23:07:52,027 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 127 transitions. Word has length 34 [2021-10-28 23:07:52,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:07:52,027 INFO L470 AbstractCegarLoop]: Abstraction has 122 states and 127 transitions. [2021-10-28 23:07:52,028 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-10-28 23:07:52,028 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 127 transitions. [2021-10-28 23:07:52,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-10-28 23:07:52,029 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:07:52,029 INFO L513 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:07:52,052 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-28 23:07:52,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:07:52,242 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_kref_initErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 23:07:52,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:07:52,243 INFO L85 PathProgramCache]: Analyzing trace with hash -1076819579, now seen corresponding path program 2 times [2021-10-28 23:07:52,243 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:07:52,243 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1675037723] [2021-10-28 23:07:52,243 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 23:07:52,244 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:07:52,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:07:52,245 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:07:52,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-28 23:07:52,508 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-28 23:07:52,508 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:07:52,512 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-28 23:07:52,515 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:07:52,554 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 23:07:52,888 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-10-28 23:07:52,889 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:07:53,173 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-10-28 23:07:53,174 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:07:53,174 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1675037723] [2021-10-28 23:07:53,174 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1675037723] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:07:53,174 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:07:53,174 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 11 [2021-10-28 23:07:53,175 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383423691] [2021-10-28 23:07:53,175 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-28 23:07:53,175 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:07:53,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-28 23:07:53,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-10-28 23:07:53,177 INFO L87 Difference]: Start difference. First operand 122 states and 127 transitions. Second operand has 12 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 8 states have internal predecessors, (26), 4 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-28 23:07:54,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:07:54,020 INFO L93 Difference]: Finished difference Result 133 states and 137 transitions. [2021-10-28 23:07:54,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 23:07:54,021 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 8 states have internal predecessors, (26), 4 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 38 [2021-10-28 23:07:54,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:07:54,022 INFO L225 Difference]: With dead ends: 133 [2021-10-28 23:07:54,022 INFO L226 Difference]: Without dead ends: 133 [2021-10-28 23:07:54,023 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 56 SyntacticMatches, 9 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2021-10-28 23:07:54,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2021-10-28 23:07:54,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 121. [2021-10-28 23:07:54,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 70 states have (on average 1.3285714285714285) internal successors, (93), 89 states have internal predecessors, (93), 17 states have call successors, (17), 17 states have call predecessors, (17), 16 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-10-28 23:07:54,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 126 transitions. [2021-10-28 23:07:54,029 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 126 transitions. Word has length 38 [2021-10-28 23:07:54,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:07:54,030 INFO L470 AbstractCegarLoop]: Abstraction has 121 states and 126 transitions. [2021-10-28 23:07:54,030 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 8 states have internal predecessors, (26), 4 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-28 23:07:54,030 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 126 transitions. [2021-10-28 23:07:54,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-10-28 23:07:54,031 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:07:54,031 INFO L513 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:07:54,045 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-28 23:07:54,244 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:07:54,244 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_kref_initErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 23:07:54,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:07:54,245 INFO L85 PathProgramCache]: Analyzing trace with hash -1076819578, now seen corresponding path program 1 times [2021-10-28 23:07:54,245 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:07:54,245 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [608624268] [2021-10-28 23:07:54,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:07:54,246 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:07:54,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:07:54,246 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:07:54,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-28 23:07:54,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:07:54,526 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-28 23:07:54,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:07:54,680 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:07:54,680 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:07:55,135 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:07:55,135 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:07:55,135 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [608624268] [2021-10-28 23:07:55,135 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [608624268] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-28 23:07:55,135 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:07:55,135 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2021-10-28 23:07:55,136 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988763466] [2021-10-28 23:07:55,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-10-28 23:07:55,136 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:07:55,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-28 23:07:55,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2021-10-28 23:07:55,137 INFO L87 Difference]: Start difference. First operand 121 states and 126 transitions. Second operand has 18 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 18 states have internal predecessors, (35), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-10-28 23:07:55,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:07:55,737 INFO L93 Difference]: Finished difference Result 133 states and 144 transitions. [2021-10-28 23:07:55,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-28 23:07:55,741 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 18 states have internal predecessors, (35), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 38 [2021-10-28 23:07:55,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:07:55,742 INFO L225 Difference]: With dead ends: 133 [2021-10-28 23:07:55,742 INFO L226 Difference]: Without dead ends: 129 [2021-10-28 23:07:55,743 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=223, Invalid=377, Unknown=0, NotChecked=0, Total=600 [2021-10-28 23:07:55,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2021-10-28 23:07:55,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2021-10-28 23:07:55,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 78 states have (on average 1.294871794871795) internal successors, (101), 97 states have internal predecessors, (101), 17 states have call successors, (17), 17 states have call predecessors, (17), 16 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-10-28 23:07:55,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 134 transitions. [2021-10-28 23:07:55,748 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 134 transitions. Word has length 38 [2021-10-28 23:07:55,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:07:55,749 INFO L470 AbstractCegarLoop]: Abstraction has 129 states and 134 transitions. [2021-10-28 23:07:55,749 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 18 states have internal predecessors, (35), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-10-28 23:07:55,749 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 134 transitions. [2021-10-28 23:07:55,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-10-28 23:07:55,750 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:07:55,751 INFO L513 BasicCegarLoop]: trace histogram [14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:07:55,765 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-28 23:07:55,962 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:07:55,962 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_kref_initErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 23:07:55,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:07:55,963 INFO L85 PathProgramCache]: Analyzing trace with hash -2145805818, now seen corresponding path program 2 times [2021-10-28 23:07:55,963 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:07:55,963 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [698291657] [2021-10-28 23:07:55,963 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 23:07:55,964 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:07:55,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:07:55,964 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:07:55,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-28 23:07:56,258 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-28 23:07:56,259 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:07:56,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-28 23:07:56,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:07:56,312 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 23:07:56,773 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-10-28 23:07:56,773 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:07:57,941 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-10-28 23:07:57,942 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:07:57,942 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [698291657] [2021-10-28 23:07:57,942 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [698291657] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:07:57,942 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:07:57,942 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 11] imperfect sequences [] total 22 [2021-10-28 23:07:57,942 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787306169] [2021-10-28 23:07:57,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-28 23:07:57,943 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:07:57,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-28 23:07:57,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2021-10-28 23:07:57,944 INFO L87 Difference]: Start difference. First operand 129 states and 134 transitions. Second operand has 23 states, 22 states have (on average 1.7272727272727273) internal successors, (38), 15 states have internal predecessors, (38), 7 states have call successors, (13), 8 states have call predecessors, (13), 4 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2021-10-28 23:07:59,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:07:59,899 INFO L93 Difference]: Finished difference Result 128 states and 133 transitions. [2021-10-28 23:07:59,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-28 23:07:59,899 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 1.7272727272727273) internal successors, (38), 15 states have internal predecessors, (38), 7 states have call successors, (13), 8 states have call predecessors, (13), 4 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) Word has length 46 [2021-10-28 23:07:59,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:07:59,901 INFO L225 Difference]: With dead ends: 128 [2021-10-28 23:07:59,901 INFO L226 Difference]: Without dead ends: 128 [2021-10-28 23:07:59,902 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 69 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=88, Invalid=614, Unknown=0, NotChecked=0, Total=702 [2021-10-28 23:07:59,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2021-10-28 23:07:59,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2021-10-28 23:07:59,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 78 states have (on average 1.2820512820512822) internal successors, (100), 96 states have internal predecessors, (100), 17 states have call successors, (17), 17 states have call predecessors, (17), 16 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-10-28 23:07:59,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 133 transitions. [2021-10-28 23:07:59,907 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 133 transitions. Word has length 46 [2021-10-28 23:07:59,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:07:59,908 INFO L470 AbstractCegarLoop]: Abstraction has 128 states and 133 transitions. [2021-10-28 23:07:59,908 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 1.7272727272727273) internal successors, (38), 15 states have internal predecessors, (38), 7 states have call successors, (13), 8 states have call predecessors, (13), 4 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2021-10-28 23:07:59,908 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 133 transitions. [2021-10-28 23:07:59,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-10-28 23:07:59,910 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:07:59,910 INFO L513 BasicCegarLoop]: trace histogram [14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:07:59,920 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-10-28 23:08:00,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:08:00,116 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 23:08:00,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:08:00,117 INFO L85 PathProgramCache]: Analyzing trace with hash 2091386010, now seen corresponding path program 1 times [2021-10-28 23:08:00,117 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:08:00,117 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2060778016] [2021-10-28 23:08:00,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:08:00,117 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:08:00,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:08:00,120 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:08:00,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-10-28 23:08:00,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:08:00,459 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-28 23:08:00,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:08:00,798 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:08:00,798 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:08:02,182 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:08:02,182 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:08:02,183 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2060778016] [2021-10-28 23:08:02,183 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2060778016] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-28 23:08:02,183 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:08:02,183 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 34 [2021-10-28 23:08:02,183 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328533313] [2021-10-28 23:08:02,184 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-10-28 23:08:02,184 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:08:02,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-10-28 23:08:02,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=230, Invalid=892, Unknown=0, NotChecked=0, Total=1122 [2021-10-28 23:08:02,186 INFO L87 Difference]: Start difference. First operand 128 states and 133 transitions. Second operand has 34 states, 34 states have (on average 1.6764705882352942) internal successors, (57), 34 states have internal predecessors, (57), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-10-28 23:08:02,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:08:02,812 INFO L93 Difference]: Finished difference Result 134 states and 139 transitions. [2021-10-28 23:08:02,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-28 23:08:02,813 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 1.6764705882352942) internal successors, (57), 34 states have internal predecessors, (57), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 51 [2021-10-28 23:08:02,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:08:02,814 INFO L225 Difference]: With dead ends: 134 [2021-10-28 23:08:02,815 INFO L226 Difference]: Without dead ends: 130 [2021-10-28 23:08:02,816 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=250, Invalid=940, Unknown=0, NotChecked=0, Total=1190 [2021-10-28 23:08:02,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2021-10-28 23:08:02,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2021-10-28 23:08:02,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 80 states have (on average 1.275) internal successors, (102), 98 states have internal predecessors, (102), 17 states have call successors, (17), 17 states have call predecessors, (17), 16 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-10-28 23:08:02,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 135 transitions. [2021-10-28 23:08:02,822 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 135 transitions. Word has length 51 [2021-10-28 23:08:02,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:08:02,823 INFO L470 AbstractCegarLoop]: Abstraction has 130 states and 135 transitions. [2021-10-28 23:08:02,823 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 1.6764705882352942) internal successors, (57), 34 states have internal predecessors, (57), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-10-28 23:08:02,823 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 135 transitions. [2021-10-28 23:08:02,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-28 23:08:02,824 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:08:02,825 INFO L513 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:08:02,841 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-10-28 23:08:03,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:08:03,041 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 23:08:03,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:08:03,041 INFO L85 PathProgramCache]: Analyzing trace with hash -1898067846, now seen corresponding path program 2 times [2021-10-28 23:08:03,042 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:08:03,042 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1150844575] [2021-10-28 23:08:03,042 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 23:08:03,042 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:08:03,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:08:03,043 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:08:03,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-10-28 23:08:03,422 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-28 23:08:03,422 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:08:03,427 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-28 23:08:03,429 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:08:03,464 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 23:08:03,790 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-28 23:08:03,790 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:08:03,993 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-28 23:08:03,993 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:08:03,993 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1150844575] [2021-10-28 23:08:03,994 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1150844575] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:08:03,994 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:08:03,994 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 11 [2021-10-28 23:08:03,994 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539329466] [2021-10-28 23:08:03,994 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-28 23:08:03,995 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:08:03,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-28 23:08:03,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-10-28 23:08:03,996 INFO L87 Difference]: Start difference. First operand 130 states and 135 transitions. Second operand has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 8 states have internal predecessors, (32), 4 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2021-10-28 23:08:04,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:08:04,699 INFO L93 Difference]: Finished difference Result 140 states and 144 transitions. [2021-10-28 23:08:04,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 23:08:04,700 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 8 states have internal predecessors, (32), 4 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 53 [2021-10-28 23:08:04,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:08:04,702 INFO L225 Difference]: With dead ends: 140 [2021-10-28 23:08:04,702 INFO L226 Difference]: Without dead ends: 140 [2021-10-28 23:08:04,702 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 85 SyntacticMatches, 10 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2021-10-28 23:08:04,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2021-10-28 23:08:04,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 128. [2021-10-28 23:08:04,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 80 states have (on average 1.25) internal successors, (100), 96 states have internal predecessors, (100), 17 states have call successors, (17), 17 states have call predecessors, (17), 16 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-10-28 23:08:04,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 133 transitions. [2021-10-28 23:08:04,708 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 133 transitions. Word has length 53 [2021-10-28 23:08:04,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:08:04,709 INFO L470 AbstractCegarLoop]: Abstraction has 128 states and 133 transitions. [2021-10-28 23:08:04,709 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 8 states have internal predecessors, (32), 4 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2021-10-28 23:08:04,709 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 133 transitions. [2021-10-28 23:08:04,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-28 23:08:04,710 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:08:04,711 INFO L513 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:08:04,730 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-10-28 23:08:04,931 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:08:04,931 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 23:08:04,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:08:04,931 INFO L85 PathProgramCache]: Analyzing trace with hash -1898067845, now seen corresponding path program 1 times [2021-10-28 23:08:04,932 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:08:04,932 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1376293945] [2021-10-28 23:08:04,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:08:04,932 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:08:04,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:08:04,933 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:08:04,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-10-28 23:08:05,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:08:05,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-28 23:08:05,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:08:05,411 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 23:08:06,009 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-28 23:08:06,009 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:08:07,251 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-28 23:08:07,252 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:08:07,252 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1376293945] [2021-10-28 23:08:07,252 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1376293945] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:08:07,252 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:08:07,252 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 11] imperfect sequences [] total 22 [2021-10-28 23:08:07,252 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910385336] [2021-10-28 23:08:07,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-28 23:08:07,253 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:08:07,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-28 23:08:07,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2021-10-28 23:08:07,254 INFO L87 Difference]: Start difference. First operand 128 states and 133 transitions. Second operand has 23 states, 22 states have (on average 2.0) internal successors, (44), 15 states have internal predecessors, (44), 7 states have call successors, (15), 8 states have call predecessors, (15), 4 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) [2021-10-28 23:08:09,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:08:09,455 INFO L93 Difference]: Finished difference Result 126 states and 131 transitions. [2021-10-28 23:08:09,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-28 23:08:09,456 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 2.0) internal successors, (44), 15 states have internal predecessors, (44), 7 states have call successors, (15), 8 states have call predecessors, (15), 4 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) Word has length 53 [2021-10-28 23:08:09,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:08:09,458 INFO L225 Difference]: With dead ends: 126 [2021-10-28 23:08:09,458 INFO L226 Difference]: Without dead ends: 126 [2021-10-28 23:08:09,459 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 81 SyntacticMatches, 3 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=88, Invalid=614, Unknown=0, NotChecked=0, Total=702 [2021-10-28 23:08:09,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2021-10-28 23:08:09,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2021-10-28 23:08:09,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 80 states have (on average 1.225) internal successors, (98), 94 states have internal predecessors, (98), 17 states have call successors, (17), 17 states have call predecessors, (17), 16 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-10-28 23:08:09,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 131 transitions. [2021-10-28 23:08:09,465 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 131 transitions. Word has length 53 [2021-10-28 23:08:09,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:08:09,466 INFO L470 AbstractCegarLoop]: Abstraction has 126 states and 131 transitions. [2021-10-28 23:08:09,466 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 2.0) internal successors, (44), 15 states have internal predecessors, (44), 7 states have call successors, (15), 8 states have call predecessors, (15), 4 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) [2021-10-28 23:08:09,466 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 131 transitions. [2021-10-28 23:08:09,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-10-28 23:08:09,467 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:08:09,468 INFO L513 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:08:09,485 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-10-28 23:08:09,676 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:08:09,676 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_atomic_sub_returnErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 23:08:09,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:08:09,676 INFO L85 PathProgramCache]: Analyzing trace with hash 240730744, now seen corresponding path program 1 times [2021-10-28 23:08:09,677 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:08:09,677 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [451914464] [2021-10-28 23:08:09,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:08:09,677 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:08:09,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:08:09,678 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:08:09,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-10-28 23:08:10,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:08:10,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 23:08:10,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:08:10,361 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-28 23:08:10,361 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:08:10,642 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-28 23:08:10,642 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:08:10,642 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [451914464] [2021-10-28 23:08:10,642 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [451914464] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:08:10,642 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:08:10,642 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 8 [2021-10-28 23:08:10,643 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104033985] [2021-10-28 23:08:10,643 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 23:08:10,643 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:08:10,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 23:08:10,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-10-28 23:08:10,645 INFO L87 Difference]: Start difference. First operand 126 states and 131 transitions. Second operand has 8 states, 8 states have (on average 3.625) internal successors, (29), 7 states have internal predecessors, (29), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2021-10-28 23:08:10,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:08:10,710 INFO L93 Difference]: Finished difference Result 128 states and 132 transitions. [2021-10-28 23:08:10,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 23:08:10,711 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.625) internal successors, (29), 7 states have internal predecessors, (29), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) Word has length 58 [2021-10-28 23:08:10,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:08:10,713 INFO L225 Difference]: With dead ends: 128 [2021-10-28 23:08:10,713 INFO L226 Difference]: Without dead ends: 126 [2021-10-28 23:08:10,713 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-10-28 23:08:10,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2021-10-28 23:08:10,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2021-10-28 23:08:10,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 80 states have (on average 1.2125) internal successors, (97), 93 states have internal predecessors, (97), 17 states have call successors, (17), 17 states have call predecessors, (17), 16 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-10-28 23:08:10,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 130 transitions. [2021-10-28 23:08:10,720 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 130 transitions. Word has length 58 [2021-10-28 23:08:10,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:08:10,720 INFO L470 AbstractCegarLoop]: Abstraction has 126 states and 130 transitions. [2021-10-28 23:08:10,721 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.625) internal successors, (29), 7 states have internal predecessors, (29), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2021-10-28 23:08:10,721 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 130 transitions. [2021-10-28 23:08:10,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-10-28 23:08:10,722 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:08:10,723 INFO L513 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:08:10,744 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-10-28 23:08:10,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:08:10,938 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_atomic_sub_returnErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 23:08:10,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:08:10,938 INFO L85 PathProgramCache]: Analyzing trace with hash -905772081, now seen corresponding path program 1 times [2021-10-28 23:08:10,939 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:08:10,939 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1858428739] [2021-10-28 23:08:10,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:08:10,939 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:08:10,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:08:10,941 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:08:11,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-10-28 23:08:11,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:08:11,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 23:08:11,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:08:11,784 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-28 23:08:11,785 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:08:12,138 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-28 23:08:12,138 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:08:12,138 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1858428739] [2021-10-28 23:08:12,138 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1858428739] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:08:12,139 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:08:12,139 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 11 [2021-10-28 23:08:12,139 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39822098] [2021-10-28 23:08:12,139 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-28 23:08:12,139 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:08:12,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-28 23:08:12,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-10-28 23:08:12,140 INFO L87 Difference]: Start difference. First operand 126 states and 130 transitions. Second operand has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 10 states have internal predecessors, (34), 5 states have call successors, (13), 2 states have call predecessors, (13), 5 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) [2021-10-28 23:08:12,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:08:12,237 INFO L93 Difference]: Finished difference Result 130 states and 133 transitions. [2021-10-28 23:08:12,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 23:08:12,241 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 10 states have internal predecessors, (34), 5 states have call successors, (13), 2 states have call predecessors, (13), 5 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) Word has length 63 [2021-10-28 23:08:12,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:08:12,243 INFO L225 Difference]: With dead ends: 130 [2021-10-28 23:08:12,243 INFO L226 Difference]: Without dead ends: 126 [2021-10-28 23:08:12,243 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-10-28 23:08:12,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2021-10-28 23:08:12,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2021-10-28 23:08:12,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 80 states have (on average 1.2) internal successors, (96), 92 states have internal predecessors, (96), 17 states have call successors, (17), 17 states have call predecessors, (17), 16 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-10-28 23:08:12,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 129 transitions. [2021-10-28 23:08:12,247 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 129 transitions. Word has length 63 [2021-10-28 23:08:12,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:08:12,259 INFO L470 AbstractCegarLoop]: Abstraction has 126 states and 129 transitions. [2021-10-28 23:08:12,259 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 10 states have internal predecessors, (34), 5 states have call successors, (13), 2 states have call predecessors, (13), 5 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) [2021-10-28 23:08:12,260 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 129 transitions. [2021-10-28 23:08:12,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-10-28 23:08:12,260 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:08:12,261 INFO L513 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:08:12,277 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-10-28 23:08:12,461 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:08:12,461 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_atomic_sub_returnErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 23:08:12,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:08:12,462 INFO L85 PathProgramCache]: Analyzing trace with hash 1773831866, now seen corresponding path program 1 times [2021-10-28 23:08:12,462 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:08:12,462 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1362521378] [2021-10-28 23:08:12,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:08:12,462 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:08:12,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:08:12,463 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:08:12,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-10-28 23:08:13,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:08:13,078 INFO L263 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-28 23:08:13,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:08:13,105 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 23:08:13,658 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-28 23:08:13,658 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:08:14,093 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-28 23:08:14,093 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:08:14,093 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1362521378] [2021-10-28 23:08:14,093 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1362521378] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:08:14,093 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:08:14,094 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16, 15] imperfect sequences [] total 16 [2021-10-28 23:08:14,094 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878078850] [2021-10-28 23:08:14,095 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-28 23:08:14,095 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:08:14,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-28 23:08:14,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2021-10-28 23:08:14,097 INFO L87 Difference]: Start difference. First operand 126 states and 129 transitions. Second operand has 17 states, 13 states have (on average 4.230769230769231) internal successors, (55), 11 states have internal predecessors, (55), 7 states have call successors, (19), 6 states have call predecessors, (19), 4 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) [2021-10-28 23:08:15,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:08:15,255 INFO L93 Difference]: Finished difference Result 140 states and 142 transitions. [2021-10-28 23:08:15,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-28 23:08:15,256 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 13 states have (on average 4.230769230769231) internal successors, (55), 11 states have internal predecessors, (55), 7 states have call successors, (19), 6 states have call predecessors, (19), 4 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) Word has length 74 [2021-10-28 23:08:15,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:08:15,257 INFO L225 Difference]: With dead ends: 140 [2021-10-28 23:08:15,258 INFO L226 Difference]: Without dead ends: 140 [2021-10-28 23:08:15,258 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 119 SyntacticMatches, 13 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=70, Invalid=392, Unknown=0, NotChecked=0, Total=462 [2021-10-28 23:08:15,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2021-10-28 23:08:15,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 124. [2021-10-28 23:08:15,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 80 states have (on average 1.175) internal successors, (94), 90 states have internal predecessors, (94), 17 states have call successors, (17), 17 states have call predecessors, (17), 16 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-10-28 23:08:15,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 127 transitions. [2021-10-28 23:08:15,266 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 127 transitions. Word has length 74 [2021-10-28 23:08:15,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:08:15,266 INFO L470 AbstractCegarLoop]: Abstraction has 124 states and 127 transitions. [2021-10-28 23:08:15,267 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 13 states have (on average 4.230769230769231) internal successors, (55), 11 states have internal predecessors, (55), 7 states have call successors, (19), 6 states have call predecessors, (19), 4 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) [2021-10-28 23:08:15,267 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 127 transitions. [2021-10-28 23:08:15,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-10-28 23:08:15,268 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:08:15,269 INFO L513 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:08:15,295 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-10-28 23:08:15,484 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:08:15,484 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_atomic_sub_returnErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 23:08:15,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:08:15,485 INFO L85 PathProgramCache]: Analyzing trace with hash 1773831867, now seen corresponding path program 1 times [2021-10-28 23:08:15,485 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:08:15,486 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [65525666] [2021-10-28 23:08:15,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:08:15,486 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:08:15,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:08:15,487 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:08:15,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-10-28 23:08:16,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:08:16,189 INFO L263 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 32 conjunts are in the unsatisfiable core [2021-10-28 23:08:16,192 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:08:16,235 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 23:08:17,113 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-28 23:08:17,113 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:08:19,605 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-28 23:08:19,605 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:08:19,606 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [65525666] [2021-10-28 23:08:19,606 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [65525666] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:08:19,606 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:08:19,606 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17, 16] imperfect sequences [] total 32 [2021-10-28 23:08:19,606 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901796779] [2021-10-28 23:08:19,607 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-10-28 23:08:19,607 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:08:19,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-10-28 23:08:19,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=965, Unknown=0, NotChecked=0, Total=1056 [2021-10-28 23:08:19,609 INFO L87 Difference]: Start difference. First operand 124 states and 127 transitions. Second operand has 33 states, 26 states have (on average 2.6923076923076925) internal successors, (70), 21 states have internal predecessors, (70), 12 states have call successors, (23), 10 states have call predecessors, (23), 6 states have return successors, (15), 8 states have call predecessors, (15), 4 states have call successors, (15) [2021-10-28 23:08:22,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:08:22,332 INFO L93 Difference]: Finished difference Result 122 states and 125 transitions. [2021-10-28 23:08:22,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-28 23:08:22,333 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 26 states have (on average 2.6923076923076925) internal successors, (70), 21 states have internal predecessors, (70), 12 states have call successors, (23), 10 states have call predecessors, (23), 6 states have return successors, (15), 8 states have call predecessors, (15), 4 states have call successors, (15) Word has length 74 [2021-10-28 23:08:22,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:08:22,335 INFO L225 Difference]: With dead ends: 122 [2021-10-28 23:08:22,335 INFO L226 Difference]: Without dead ends: 122 [2021-10-28 23:08:22,336 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 113 SyntacticMatches, 3 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 326 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=132, Invalid=1350, Unknown=0, NotChecked=0, Total=1482 [2021-10-28 23:08:22,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-10-28 23:08:22,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2021-10-28 23:08:22,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 80 states have (on average 1.15) internal successors, (92), 88 states have internal predecessors, (92), 17 states have call successors, (17), 17 states have call predecessors, (17), 16 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-10-28 23:08:22,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 125 transitions. [2021-10-28 23:08:22,341 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 125 transitions. Word has length 74 [2021-10-28 23:08:22,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:08:22,341 INFO L470 AbstractCegarLoop]: Abstraction has 122 states and 125 transitions. [2021-10-28 23:08:22,342 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 26 states have (on average 2.6923076923076925) internal successors, (70), 21 states have internal predecessors, (70), 12 states have call successors, (23), 10 states have call predecessors, (23), 6 states have return successors, (15), 8 states have call predecessors, (15), 4 states have call successors, (15) [2021-10-28 23:08:22,342 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 125 transitions. [2021-10-28 23:08:22,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-10-28 23:08:22,343 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:08:22,343 INFO L513 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:08:22,354 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-10-28 23:08:22,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:08:22,552 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 23:08:22,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:08:22,552 INFO L85 PathProgramCache]: Analyzing trace with hash 44814492, now seen corresponding path program 1 times [2021-10-28 23:08:22,553 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:08:22,553 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [390468284] [2021-10-28 23:08:22,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:08:22,554 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:08:22,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:08:22,555 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:08:22,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-10-28 23:08:23,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:08:23,115 INFO L263 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-28 23:08:23,116 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:08:23,338 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-28 23:08:23,338 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:08:23,697 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-28 23:08:23,697 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:08:23,697 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [390468284] [2021-10-28 23:08:23,697 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [390468284] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:08:23,697 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:08:23,698 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 11 [2021-10-28 23:08:23,698 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063525394] [2021-10-28 23:08:23,698 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-28 23:08:23,698 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:08:23,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-28 23:08:23,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-10-28 23:08:23,699 INFO L87 Difference]: Start difference. First operand 122 states and 125 transitions. Second operand has 11 states, 10 states have (on average 3.8) internal successors, (38), 9 states have internal predecessors, (38), 3 states have call successors, (11), 1 states have call predecessors, (11), 5 states have return successors, (10), 5 states have call predecessors, (10), 3 states have call successors, (10) [2021-10-28 23:08:23,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:08:23,764 INFO L93 Difference]: Finished difference Result 124 states and 126 transitions. [2021-10-28 23:08:23,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 23:08:23,765 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.8) internal successors, (38), 9 states have internal predecessors, (38), 3 states have call successors, (11), 1 states have call predecessors, (11), 5 states have return successors, (10), 5 states have call predecessors, (10), 3 states have call successors, (10) Word has length 72 [2021-10-28 23:08:23,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:08:23,766 INFO L225 Difference]: With dead ends: 124 [2021-10-28 23:08:23,766 INFO L226 Difference]: Without dead ends: 122 [2021-10-28 23:08:23,766 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-10-28 23:08:23,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-10-28 23:08:23,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2021-10-28 23:08:23,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 80 states have (on average 1.1375) internal successors, (91), 88 states have internal predecessors, (91), 17 states have call successors, (17), 17 states have call predecessors, (17), 16 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-10-28 23:08:23,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 124 transitions. [2021-10-28 23:08:23,781 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 124 transitions. Word has length 72 [2021-10-28 23:08:23,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:08:23,781 INFO L470 AbstractCegarLoop]: Abstraction has 122 states and 124 transitions. [2021-10-28 23:08:23,782 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.8) internal successors, (38), 9 states have internal predecessors, (38), 3 states have call successors, (11), 1 states have call predecessors, (11), 5 states have return successors, (10), 5 states have call predecessors, (10), 3 states have call successors, (10) [2021-10-28 23:08:23,782 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 124 transitions. [2021-10-28 23:08:23,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-10-28 23:08:23,783 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:08:23,783 INFO L513 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:08:23,796 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-10-28 23:08:23,996 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:08:23,997 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_kobject_cleanupErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 23:08:23,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:08:23,997 INFO L85 PathProgramCache]: Analyzing trace with hash -1162576382, now seen corresponding path program 1 times [2021-10-28 23:08:23,997 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:08:23,997 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [902003376] [2021-10-28 23:08:23,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:08:23,998 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:08:23,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:08:23,998 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:08:24,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-10-28 23:08:24,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:08:24,628 INFO L263 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 34 conjunts are in the unsatisfiable core [2021-10-28 23:08:24,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:08:24,680 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 23:08:25,533 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-28 23:08:25,534 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:08:26,251 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-28 23:08:26,251 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:08:26,252 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [902003376] [2021-10-28 23:08:26,252 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [902003376] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:08:26,252 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:08:26,252 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20, 19] imperfect sequences [] total 20 [2021-10-28 23:08:26,252 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913422958] [2021-10-28 23:08:26,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-28 23:08:26,253 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:08:26,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-28 23:08:26,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2021-10-28 23:08:26,253 INFO L87 Difference]: Start difference. First operand 122 states and 124 transitions. Second operand has 21 states, 16 states have (on average 4.375) internal successors, (70), 13 states have internal predecessors, (70), 9 states have call successors, (23), 8 states have call predecessors, (23), 4 states have return successors, (15), 6 states have call predecessors, (15), 4 states have call successors, (15) [2021-10-28 23:08:27,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:08:27,477 INFO L93 Difference]: Finished difference Result 132 states and 133 transitions. [2021-10-28 23:08:27,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-28 23:08:27,478 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 16 states have (on average 4.375) internal successors, (70), 13 states have internal predecessors, (70), 9 states have call successors, (23), 8 states have call predecessors, (23), 4 states have return successors, (15), 6 states have call predecessors, (15), 4 states have call successors, (15) Word has length 87 [2021-10-28 23:08:27,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:08:27,479 INFO L225 Difference]: With dead ends: 132 [2021-10-28 23:08:27,479 INFO L226 Difference]: Without dead ends: 132 [2021-10-28 23:08:27,480 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 135 SyntacticMatches, 19 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=92, Invalid=664, Unknown=0, NotChecked=0, Total=756 [2021-10-28 23:08:27,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2021-10-28 23:08:27,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 120. [2021-10-28 23:08:27,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 80 states have (on average 1.1125) internal successors, (89), 86 states have internal predecessors, (89), 17 states have call successors, (17), 17 states have call predecessors, (17), 16 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-10-28 23:08:27,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 122 transitions. [2021-10-28 23:08:27,486 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 122 transitions. Word has length 87 [2021-10-28 23:08:27,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:08:27,487 INFO L470 AbstractCegarLoop]: Abstraction has 120 states and 122 transitions. [2021-10-28 23:08:27,487 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 16 states have (on average 4.375) internal successors, (70), 13 states have internal predecessors, (70), 9 states have call successors, (23), 8 states have call predecessors, (23), 4 states have return successors, (15), 6 states have call predecessors, (15), 4 states have call successors, (15) [2021-10-28 23:08:27,487 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 122 transitions. [2021-10-28 23:08:27,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-10-28 23:08:27,490 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:08:27,491 INFO L513 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:08:27,517 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2021-10-28 23:08:27,713 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:08:27,713 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_kobject_cleanupErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 23:08:27,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:08:27,713 INFO L85 PathProgramCache]: Analyzing trace with hash -1162576381, now seen corresponding path program 1 times [2021-10-28 23:08:27,714 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:08:27,714 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [221440089] [2021-10-28 23:08:27,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:08:27,714 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:08:27,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:08:27,715 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:08:27,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-10-28 23:08:28,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:08:28,467 INFO L263 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 44 conjunts are in the unsatisfiable core [2021-10-28 23:08:28,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:08:28,506 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 23:08:29,504 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-28 23:08:29,505 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:08:32,145 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-28 23:08:32,145 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:08:32,145 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [221440089] [2021-10-28 23:08:32,146 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [221440089] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:08:32,146 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:08:32,146 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21, 20] imperfect sequences [] total 40 [2021-10-28 23:08:32,146 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034447085] [2021-10-28 23:08:32,146 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2021-10-28 23:08:32,146 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:08:32,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-10-28 23:08:32,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=1525, Unknown=0, NotChecked=0, Total=1640 [2021-10-28 23:08:32,148 INFO L87 Difference]: Start difference. First operand 120 states and 122 transitions. Second operand has 41 states, 32 states have (on average 2.75) internal successors, (88), 25 states have internal predecessors, (88), 16 states have call successors, (29), 14 states have call predecessors, (29), 6 states have return successors, (17), 10 states have call predecessors, (17), 6 states have call successors, (17) [2021-10-28 23:08:36,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:08:36,484 INFO L93 Difference]: Finished difference Result 118 states and 120 transitions. [2021-10-28 23:08:36,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-28 23:08:36,485 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 32 states have (on average 2.75) internal successors, (88), 25 states have internal predecessors, (88), 16 states have call successors, (29), 14 states have call predecessors, (29), 6 states have return successors, (17), 10 states have call predecessors, (17), 6 states have call successors, (17) Word has length 87 [2021-10-28 23:08:36,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:08:36,486 INFO L225 Difference]: With dead ends: 118 [2021-10-28 23:08:36,487 INFO L226 Difference]: Without dead ends: 118 [2021-10-28 23:08:36,487 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 129 SyntacticMatches, 5 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 547 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=170, Invalid=2182, Unknown=0, NotChecked=0, Total=2352 [2021-10-28 23:08:36,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2021-10-28 23:08:36,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2021-10-28 23:08:36,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 80 states have (on average 1.0875) internal successors, (87), 84 states have internal predecessors, (87), 17 states have call successors, (17), 17 states have call predecessors, (17), 16 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-10-28 23:08:36,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 120 transitions. [2021-10-28 23:08:36,492 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 120 transitions. Word has length 87 [2021-10-28 23:08:36,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:08:36,493 INFO L470 AbstractCegarLoop]: Abstraction has 118 states and 120 transitions. [2021-10-28 23:08:36,494 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 32 states have (on average 2.75) internal successors, (88), 25 states have internal predecessors, (88), 16 states have call successors, (29), 14 states have call predecessors, (29), 6 states have return successors, (17), 10 states have call predecessors, (17), 6 states have call successors, (17) [2021-10-28 23:08:36,494 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 120 transitions. [2021-10-28 23:08:36,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-10-28 23:08:36,495 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:08:36,495 INFO L513 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:08:36,513 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2021-10-28 23:08:36,695 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:08:36,696 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 23:08:36,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:08:36,696 INFO L85 PathProgramCache]: Analyzing trace with hash 303545963, now seen corresponding path program 1 times [2021-10-28 23:08:36,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:08:36,697 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1183936693] [2021-10-28 23:08:36,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:08:36,697 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:08:36,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:08:36,698 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:08:36,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-10-28 23:08:37,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:08:37,466 INFO L263 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 23 conjunts are in the unsatisfiable core [2021-10-28 23:08:37,470 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:08:38,956 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-28 23:08:38,956 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:08:39,932 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-28 23:08:39,932 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:08:39,933 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1183936693] [2021-10-28 23:08:39,933 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1183936693] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:08:39,933 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:08:39,933 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21, 19] imperfect sequences [] total 39 [2021-10-28 23:08:39,933 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663455142] [2021-10-28 23:08:39,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2021-10-28 23:08:39,934 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:08:39,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-10-28 23:08:39,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=1410, Unknown=0, NotChecked=0, Total=1560 [2021-10-28 23:08:39,936 INFO L87 Difference]: Start difference. First operand 118 states and 120 transitions. Second operand has 40 states, 31 states have (on average 3.161290322580645) internal successors, (98), 24 states have internal predecessors, (98), 17 states have call successors, (33), 15 states have call predecessors, (33), 7 states have return successors, (18), 11 states have call predecessors, (18), 7 states have call successors, (18) [2021-10-28 23:08:41,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:08:41,850 INFO L93 Difference]: Finished difference Result 117 states and 119 transitions. [2021-10-28 23:08:41,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-28 23:08:41,854 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 31 states have (on average 3.161290322580645) internal successors, (98), 24 states have internal predecessors, (98), 17 states have call successors, (33), 15 states have call predecessors, (33), 7 states have return successors, (18), 11 states have call predecessors, (18), 7 states have call successors, (18) Word has length 90 [2021-10-28 23:08:41,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:08:41,855 INFO L225 Difference]: With dead ends: 117 [2021-10-28 23:08:41,855 INFO L226 Difference]: Without dead ends: 117 [2021-10-28 23:08:41,856 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 136 SyntacticMatches, 5 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 491 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=206, Invalid=1956, Unknown=0, NotChecked=0, Total=2162 [2021-10-28 23:08:41,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2021-10-28 23:08:41,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2021-10-28 23:08:41,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 80 states have (on average 1.075) internal successors, (86), 83 states have internal predecessors, (86), 17 states have call successors, (17), 17 states have call predecessors, (17), 16 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-10-28 23:08:41,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 119 transitions. [2021-10-28 23:08:41,862 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 119 transitions. Word has length 90 [2021-10-28 23:08:41,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:08:41,863 INFO L470 AbstractCegarLoop]: Abstraction has 117 states and 119 transitions. [2021-10-28 23:08:41,863 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 31 states have (on average 3.161290322580645) internal successors, (98), 24 states have internal predecessors, (98), 17 states have call successors, (33), 15 states have call predecessors, (33), 7 states have return successors, (18), 11 states have call predecessors, (18), 7 states have call successors, (18) [2021-10-28 23:08:41,864 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 119 transitions. [2021-10-28 23:08:41,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-10-28 23:08:41,865 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:08:41,865 INFO L513 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:08:41,884 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2021-10-28 23:08:42,084 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:08:42,085 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 23:08:42,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:08:42,085 INFO L85 PathProgramCache]: Analyzing trace with hash 2031958406, now seen corresponding path program 1 times [2021-10-28 23:08:42,086 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:08:42,086 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1896402215] [2021-10-28 23:08:42,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:08:42,086 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:08:42,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:08:42,089 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:08:42,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-10-28 23:08:43,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:08:43,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 115 conjunts are in the unsatisfiable core [2021-10-28 23:08:43,150 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:08:43,221 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-10-28 23:08:43,290 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-28 23:08:43,291 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 26 treesize of output 25 [2021-10-28 23:08:43,396 INFO L354 Elim1Store]: treesize reduction 60, result has 22.1 percent of original size [2021-10-28 23:08:43,397 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 36 treesize of output 38 [2021-10-28 23:08:43,524 INFO L354 Elim1Store]: treesize reduction 116, result has 18.3 percent of original size [2021-10-28 23:08:43,524 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 53 [2021-10-28 23:08:43,697 INFO L354 Elim1Store]: treesize reduction 172, result has 16.9 percent of original size [2021-10-28 23:08:43,697 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 58 treesize of output 66 [2021-10-28 23:08:43,925 INFO L354 Elim1Store]: treesize reduction 256, result has 14.7 percent of original size [2021-10-28 23:08:43,926 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 70 treesize of output 81 [2021-10-28 23:08:44,170 INFO L354 Elim1Store]: treesize reduction 352, result has 13.3 percent of original size [2021-10-28 23:08:44,170 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 82 treesize of output 96 [2021-10-28 23:08:44,584 INFO L354 Elim1Store]: treesize reduction 462, result has 12.2 percent of original size [2021-10-28 23:08:44,584 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 28 case distinctions, treesize of input 94 treesize of output 111 [2021-10-28 23:08:45,033 INFO L354 Elim1Store]: treesize reduction 540, result has 11.6 percent of original size [2021-10-28 23:08:45,033 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 36 case distinctions, treesize of input 102 treesize of output 122 [2021-10-28 23:08:45,596 INFO L354 Elim1Store]: treesize reduction 680, result has 10.5 percent of original size [2021-10-28 23:08:45,597 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 45 case distinctions, treesize of input 114 treesize of output 137 [2021-10-28 23:08:46,357 INFO L354 Elim1Store]: treesize reduction 796, result has 10.1 percent of original size [2021-10-28 23:08:46,357 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 55 case distinctions, treesize of input 124 treesize of output 150 [2021-10-28 23:08:47,150 INFO L354 Elim1Store]: treesize reduction 964, result has 9.2 percent of original size [2021-10-28 23:08:47,150 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 66 case distinctions, treesize of input 136 treesize of output 165 [2021-10-28 23:08:48,160 INFO L354 Elim1Store]: treesize reduction 1100, result has 8.9 percent of original size [2021-10-28 23:08:48,160 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 78 case distinctions, treesize of input 146 treesize of output 178 [2021-10-28 23:08:49,407 INFO L354 Elim1Store]: treesize reduction 1270, result has 8.4 percent of original size [2021-10-28 23:08:49,407 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 0 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 91 case distinctions, treesize of input 157 treesize of output 192 [2021-10-28 23:08:50,787 INFO L354 Elim1Store]: treesize reduction 1452, result has 7.9 percent of original size [2021-10-28 23:08:50,788 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 0 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 105 case distinctions, treesize of input 168 treesize of output 206 [2021-10-28 23:08:52,539 INFO L354 Elim1Store]: treesize reduction 1646, result has 7.5 percent of original size [2021-10-28 23:08:52,540 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 15 select indices, 15 select index equivalence classes, 0 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 120 case distinctions, treesize of input 179 treesize of output 220 [2021-10-28 23:08:57,518 WARN L860 $PredicateComparison]: unable to prove that (exists ((v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.offset)| |c_ldv_kobject_init_internal_#in~kobj.base| (let ((.cse0 (bvadd (_ bv4 32) |c_ldv_kobject_init_internal_#in~kobj.offset|))) (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_ldv_kobject_init_internal_#in~kobj.base|) (bvadd |c_ldv_kobject_init_internal_#in~kobj.offset| (_ bv12 32)) v_DerPreprocessor_1) (bvadd (_ bv13 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) v_DerPreprocessor_2) (bvadd (_ bv14 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) v_DerPreprocessor_3) (bvadd (_ bv15 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) v_DerPreprocessor_4) .cse0 .cse0) (bvadd (_ bv8 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) .cse0))) |c_#memory_$Pointer$.offset|)) is different from true [2021-10-28 23:08:59,573 WARN L860 $PredicateComparison]: unable to prove that (exists ((v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_ldv_kobject_init_#in~kobj.base| (let ((.cse0 (bvadd (_ bv4 32) |c_ldv_kobject_init_#in~kobj.offset|))) (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_ldv_kobject_init_#in~kobj.base|) (bvadd |c_ldv_kobject_init_#in~kobj.offset| (_ bv12 32)) v_DerPreprocessor_1) (bvadd (_ bv13 32) |c_ldv_kobject_init_#in~kobj.offset|) v_DerPreprocessor_2) (bvadd (_ bv14 32) |c_ldv_kobject_init_#in~kobj.offset|) v_DerPreprocessor_3) (bvadd |c_ldv_kobject_init_#in~kobj.offset| (_ bv15 32)) v_DerPreprocessor_4) .cse0 .cse0) (bvadd (_ bv8 32) |c_ldv_kobject_init_#in~kobj.offset|) .cse0))))) is different from true [2021-10-28 23:08:59,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:08:59,830 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-28 23:08:59,830 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 16 select indices, 16 select index equivalence classes, 120 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 185 treesize of output 195 [2021-10-28 23:09:05,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:09:05,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:09:05,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:09:05,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:09:05,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:09:05,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:09:05,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:09:05,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:09:05,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:09:05,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:09:05,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:09:05,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:09:05,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:09:05,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:09:05,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:09:05,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:09:05,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:09:05,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:09:05,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:09:05,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:09:05,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:09:05,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:09:05,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:09:05,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:09:05,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:09:05,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:09:05,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:09:05,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:09:05,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:09:05,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:09:05,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:09:05,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:09:05,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:09:05,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:09:05,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:09:05,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:09:05,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:09:05,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:09:05,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:09:05,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:09:05,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:09:05,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:09:05,533 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-28 23:09:05,533 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 120 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 133 treesize of output 121 [2021-10-28 23:09:08,156 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-28 23:09:08,157 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 66 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 92 treesize of output 40 [2021-10-28 23:09:08,715 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:09:08,715 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:11:27,892 WARN L207 SmtUtils]: Spent 2.22 m on a formula simplification that was a NOOP. DAG size: 152 [2021-10-28 23:11:44,133 WARN L207 SmtUtils]: Spent 14.16 s on a formula simplification that was a NOOP. DAG size: 106 [2021-10-28 23:11:52,658 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 59 [2021-10-28 23:13:35,635 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ldv_kobject_init_#in~kobj.base_BEFORE_CALL_4| (_ BitVec 32)) (|v_ldv_kobject_init_#in~kobj.offset_BEFORE_CALL_2| (_ BitVec 32))) (or (exists ((v_DerPreprocessor_19 (_ BitVec 32)) (v_DerPreprocessor_20 (_ BitVec 32)) (v_DerPreprocessor_17 (_ BitVec 32)) (v_DerPreprocessor_18 (_ BitVec 32))) (not (= (select (select (store |c_old(#memory_$Pointer$.offset)| |c_ldv_kobject_init_internal_#in~kobj.base| (let ((.cse0 (bvadd (_ bv4 32) |c_ldv_kobject_init_internal_#in~kobj.offset|))) (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_ldv_kobject_init_internal_#in~kobj.base|) (bvadd |c_ldv_kobject_init_internal_#in~kobj.offset| (_ bv12 32)) v_DerPreprocessor_17) (bvadd (_ bv13 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) v_DerPreprocessor_18) (bvadd (_ bv14 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) v_DerPreprocessor_19) (bvadd (_ bv15 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) v_DerPreprocessor_20) .cse0 .cse0) (bvadd (_ bv8 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) .cse0))) |v_ldv_kobject_init_#in~kobj.base_BEFORE_CALL_4|) |v_ldv_kobject_init_#in~kobj.offset_BEFORE_CALL_2|) (_ bv0 32)))) (= (_ bv0 32) (select (select (store |c_#memory_$Pointer$.offset| c_ldv_kobject_init_internal_~kobj.base (let ((.cse1 (bvadd (_ bv4 32) c_ldv_kobject_init_internal_~kobj.offset))) (store (store (select |c_#memory_$Pointer$.offset| c_ldv_kobject_init_internal_~kobj.base) .cse1 .cse1) (bvadd (_ bv8 32) c_ldv_kobject_init_internal_~kobj.offset) .cse1))) |v_ldv_kobject_init_#in~kobj.base_BEFORE_CALL_4|) |v_ldv_kobject_init_#in~kobj.offset_BEFORE_CALL_2|)))) is different from false [2021-10-28 23:13:35,921 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-28 23:13:35,924 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 3830258 treesize of output 3821565 [2021-10-28 23:13:51,490 WARN L207 SmtUtils]: Spent 15.56 s on a formula simplification that was a NOOP. DAG size: 2072 [2021-10-28 23:18:23,810 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 101 [2021-10-28 23:18:23,811 WARN L228 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2021-10-28 23:18:23,813 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:18:23,813 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1896402215] [2021-10-28 23:18:23,813 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") [2021-10-28 23:18:23,814 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1996903233] [2021-10-28 23:18:23,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:18:23,814 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-28 23:18:23,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/cvc4 [2021-10-28 23:18:23,824 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-28 23:18:23,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2021-10-28 23:18:25,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:18:25,837 INFO L263 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 111 conjunts are in the unsatisfiable core [2021-10-28 23:18:25,840 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:18:25,841 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken [2021-10-28 23:18:25,841 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2126042112] [2021-10-28 23:18:25,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:18:25,841 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:18:25,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:18:25,842 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:18:25,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2021-10-28 23:18:26,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:18:27,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 117 conjunts are in the unsatisfiable core [2021-10-28 23:18:27,003 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:18:27,003 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken [2021-10-28 23:18:27,003 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:18:27,003 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-10-28 23:18:27,003 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-10-28 23:18:27,003 INFO L627 BasicCegarLoop]: Counterexample might be feasible [2021-10-28 23:18:27,009 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:18:27,011 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION [2021-10-28 23:18:27,011 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION [2021-10-28 23:18:27,011 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION [2021-10-28 23:18:27,012 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION [2021-10-28 23:18:27,012 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION [2021-10-28 23:18:27,012 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION [2021-10-28 23:18:27,012 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION [2021-10-28 23:18:27,012 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION [2021-10-28 23:18:27,013 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION [2021-10-28 23:18:27,013 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION [2021-10-28 23:18:27,013 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION [2021-10-28 23:18:27,013 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION [2021-10-28 23:18:27,013 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION [2021-10-28 23:18:27,014 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION [2021-10-28 23:18:27,014 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION [2021-10-28 23:18:27,014 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION [2021-10-28 23:18:27,014 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION [2021-10-28 23:18:27,014 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION [2021-10-28 23:18:27,014 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION [2021-10-28 23:18:27,015 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION [2021-10-28 23:18:27,015 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION [2021-10-28 23:18:27,015 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION [2021-10-28 23:18:27,015 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION [2021-10-28 23:18:27,015 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION [2021-10-28 23:18:27,016 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION [2021-10-28 23:18:27,016 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION [2021-10-28 23:18:27,016 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION [2021-10-28 23:18:27,016 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION [2021-10-28 23:18:27,016 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION [2021-10-28 23:18:27,017 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION [2021-10-28 23:18:27,017 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION [2021-10-28 23:18:27,017 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION [2021-10-28 23:18:27,017 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION [2021-10-28 23:18:27,017 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION [2021-10-28 23:18:27,017 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION [2021-10-28 23:18:27,018 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION [2021-10-28 23:18:27,018 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION [2021-10-28 23:18:27,018 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION [2021-10-28 23:18:27,018 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION [2021-10-28 23:18:27,018 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION [2021-10-28 23:18:27,019 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION [2021-10-28 23:18:27,019 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION [2021-10-28 23:18:27,019 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:18:27,019 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:18:27,019 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:18:27,020 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:18:27,020 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:18:27,020 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:18:27,020 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-10-28 23:18:27,020 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION [2021-10-28 23:18:27,021 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION [2021-10-28 23:18:27,021 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION [2021-10-28 23:18:27,021 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION [2021-10-28 23:18:27,021 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION [2021-10-28 23:18:27,021 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION [2021-10-28 23:18:27,021 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION [2021-10-28 23:18:27,022 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION [2021-10-28 23:18:27,022 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:18:27,022 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:18:27,022 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:18:27,022 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:18:27,023 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:18:27,023 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION [2021-10-28 23:18:27,023 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION [2021-10-28 23:18:27,023 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION [2021-10-28 23:18:27,023 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION [2021-10-28 23:18:27,024 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION [2021-10-28 23:18:27,024 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION [2021-10-28 23:18:27,024 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION [2021-10-28 23:18:27,024 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION [2021-10-28 23:18:27,044 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2021-10-28 23:18:27,281 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2021-10-28 23:18:27,447 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/cvc4 --incremental --print-success --lang smt (25)] Ended with exit code 0 [2021-10-28 23:18:27,638 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_196fdb5a-eae7-4853-9c21-c9e4cc6537de/bin/uautomizer-GMMbpWq8iD/cvc4 --incremental --print-success --lang smt [2021-10-28 23:18:27,640 INFO L731 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:18:27,644 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:18:27,647 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2021-10-28 23:18:27,660 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:18:27 BoogieIcfgContainer [2021-10-28 23:18:27,660 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:18:27,661 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:18:27,661 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:18:27,661 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:18:27,662 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:07:44" (3/4) ... [2021-10-28 23:18:27,667 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 23:18:27,667 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:18:27,668 INFO L168 Benchmark]: Toolchain (without parser) took 645981.83 ms. Allocated memory was 56.6 MB in the beginning and 1.3 GB in the end (delta: 1.2 GB). Free memory was 32.7 MB in the beginning and 1.0 GB in the end (delta: -972.9 MB). Peak memory consumption was 278.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:18:27,669 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 56.6 MB. Free memory is still 36.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:18:27,669 INFO L168 Benchmark]: CACSL2BoogieTranslator took 960.04 ms. Allocated memory is still 56.6 MB. Free memory was 32.4 MB in the beginning and 34.7 MB in the end (delta: -2.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:18:27,669 INFO L168 Benchmark]: Boogie Preprocessor took 96.37 ms. Allocated memory is still 56.6 MB. Free memory was 34.7 MB in the beginning and 30.2 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:18:27,670 INFO L168 Benchmark]: RCFGBuilder took 1601.46 ms. Allocated memory was 56.6 MB in the beginning and 77.6 MB in the end (delta: 21.0 MB). Free memory was 29.9 MB in the beginning and 45.0 MB in the end (delta: -15.1 MB). Peak memory consumption was 24.3 MB. Max. memory is 16.1 GB. [2021-10-28 23:18:27,670 INFO L168 Benchmark]: TraceAbstraction took 643308.58 ms. Allocated memory was 77.6 MB in the beginning and 1.3 GB in the end (delta: 1.2 GB). Free memory was 44.7 MB in the beginning and 1.0 GB in the end (delta: -960.9 MB). Peak memory consumption was 269.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:18:27,670 INFO L168 Benchmark]: Witness Printer took 6.65 ms. Allocated memory is still 1.3 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:18:27,677 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 56.6 MB. Free memory is still 36.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 960.04 ms. Allocated memory is still 56.6 MB. Free memory was 32.4 MB in the beginning and 34.7 MB in the end (delta: -2.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 96.37 ms. Allocated memory is still 56.6 MB. Free memory was 34.7 MB in the beginning and 30.2 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1601.46 ms. Allocated memory was 56.6 MB in the beginning and 77.6 MB in the end (delta: 21.0 MB). Free memory was 29.9 MB in the beginning and 45.0 MB in the end (delta: -15.1 MB). Peak memory consumption was 24.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 643308.58 ms. Allocated memory was 77.6 MB in the beginning and 1.3 GB in the end (delta: 1.2 GB). Free memory was 44.7 MB in the beginning and 1.0 GB in the end (delta: -960.9 MB). Peak memory consumption was 269.1 MB. Max. memory is 16.1 GB. * Witness Printer took 6.65 ms. Allocated memory is still 1.3 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) * 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: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L763] CALL entry_point() [L758] struct ldv_kobject *kobj; [L759] CALL, EXPR ldv_kobject_create() [L740] struct ldv_kobject *kobj; [L741] CALL, EXPR ldv_malloc(sizeof(*kobj)) [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L741] RET, EXPR ldv_malloc(sizeof(*kobj)) [L741] kobj = ldv_malloc(sizeof(*kobj)) [L742] COND FALSE !(!kobj) [L744] FCALL memset(kobj, 0, sizeof(*kobj)) [L745] CALL ldv_kobject_init(kobj) [L730] COND FALSE !(!kobj) [L733] CALL ldv_kobject_init_internal(kobj) [L723] COND FALSE !(!kobj) [L725] CALL ldv_kref_init(&kobj->kref) [L682] ((&kref->refcount)->counter) = (1) [L725] RET ldv_kref_init(&kobj->kref) [L726] CALL LDV_INIT_LIST_HEAD(&kobj->entry) [L540] list->next = list [L541] list->prev = list [L726] RET LDV_INIT_LIST_HEAD(&kobj->entry) [L733] RET ldv_kobject_init_internal(kobj) [L745] RET ldv_kobject_init(kobj) [L746] return kobj; [L759] RET, EXPR ldv_kobject_create() [L759] kobj = ldv_kobject_create() [L760] CALL ldv_kobject_put(kobj) [L711] COND TRUE \read(*kobj) [L712] CALL ldv_kref_put(&kobj->kref, ldv_kobject_release) [L690] CALL ldv_kref_sub(kref, 1, release) [L674] CALL, EXPR ldv_atomic_sub_return(((int) count), (&kref->refcount)) [L665] int temp; [L666] EXPR v->counter [L666] temp = v->counter [L667] temp -= i [L668] v->counter = temp [L669] return temp; [L674] RET, EXPR ldv_atomic_sub_return(((int) count), (&kref->refcount)) [L674] COND TRUE (ldv_atomic_sub_return(((int) count), (&kref->refcount)) == 0) [L675] CALL release(kref) [L706] const typeof( ((struct ldv_kobject *)0)->kref ) *__mptr = (kref); [L706] struct ldv_kobject *kobj = ({ const typeof( ((struct ldv_kobject *)0)->kref ) *__mptr = (kref); (struct ldv_kobject *)( (char *)__mptr - ((size_t) &((struct ldv_kobject *)0)->kref) );}); [L707] CALL ldv_kobject_cleanup(kobj) [L699] EXPR kobj->name [L699] char *name = kobj->name; [L700] free(kobj) [L700] free(kobj) [L700] free(kobj) [L701] COND TRUE \read(*name) [L702] free(name) - 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: 762]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed 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: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 47 procedures, 331 locations, 71 error locations. Started 1 CEGAR loops. OverallTime: 643.2s, OverallIterations: 23, TraceHistogramMax: 16, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 20.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 2248 SDtfs, 1152 SDslu, 16433 SDs, 0 SdLazy, 8636 SolverSat, 313 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 14.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2216 GetRequests, 1768 SyntacticMatches, 71 SemanticMatches, 377 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1926 ImplicationChecksByTransitivity, 14.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=150occurred in iteration=0, InterpolantAutomatonStates: 264, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 22 MinimizatonAttempts, 79 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 2.0s SatisfiabilityAnalysisTime, 604.4s InterpolantComputationTime, 1179 NumberOfCodeBlocks, 1143 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 2220 ConstructedInterpolants, 310 QuantifiedInterpolants, 13820 SizeOfPredicates, 128 NumberOfNonLiveVariables, 5029 ConjunctsInSsa, 438 ConjunctsInUnsatCore, 45 InterpolantComputations, 38 PerfectInterpolantSequences, 2972/3366 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 Received shutdown request...