./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 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/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_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7c0f55efd94c93e17f9b5d2997faae48611cbba6 ................................................................................................................................... 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_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/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_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7c0f55efd94c93e17f9b5d2997faae48611cbba6 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 00:14:57,185 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:14:57,188 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:14:57,232 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:14:57,233 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:14:57,237 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:14:57,239 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:14:57,243 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:14:57,246 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:14:57,249 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:14:57,250 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:14:57,251 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:14:57,251 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:14:57,253 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:14:57,254 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:14:57,256 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:14:57,257 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:14:57,258 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:14:57,260 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:14:57,262 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:14:57,264 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:14:57,266 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:14:57,267 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:14:57,268 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:14:57,272 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:14:57,273 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:14:57,273 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:14:57,274 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:14:57,275 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:14:57,276 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:14:57,277 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:14:57,278 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:14:57,278 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:14:57,279 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:14:57,281 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:14:57,281 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:14:57,282 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:14:57,283 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:14:57,283 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:14:57,284 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:14:57,285 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:14:57,286 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-10-13 00:14:57,309 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:14:57,310 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:14:57,310 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:14:57,310 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:14:57,311 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:14:57,312 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:14:57,312 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:14:57,312 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:14:57,312 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:14:57,313 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 00:14:57,313 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:14:57,313 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:14:57,313 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:14:57,313 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-13 00:14:57,314 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-13 00:14:57,314 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-13 00:14:57,314 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 00:14:57,314 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 00:14:57,314 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:14:57,315 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:14:57,315 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:14:57,315 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:14:57,315 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 00:14:57,316 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:14:57,316 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:14:57,316 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 00:14:57,316 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:14:57,316 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 00:14:57,317 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:14:57,317 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_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c0f55efd94c93e17f9b5d2997faae48611cbba6 [2021-10-13 00:14:57,566 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:14:57,587 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:14:57,590 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:14:57,591 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:14:57,592 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:14:57,593 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_1-2.i [2021-10-13 00:14:57,669 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/data/0889da586/7a80b9cbe9164328bb6f650b00801e4d/FLAGcff9f6891 [2021-10-13 00:14:58,207 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:14:58,208 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/sv-benchmarks/c/ldv-memsafety/memleaks_test22_1-2.i [2021-10-13 00:14:58,234 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/data/0889da586/7a80b9cbe9164328bb6f650b00801e4d/FLAGcff9f6891 [2021-10-13 00:14:58,482 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/data/0889da586/7a80b9cbe9164328bb6f650b00801e4d [2021-10-13 00:14:58,485 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:14:58,487 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-13 00:14:58,489 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:14:58,489 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:14:58,493 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:14:58,494 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:14:58" (1/1) ... [2021-10-13 00:14:58,495 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e9a1b7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:14:58, skipping insertion in model container [2021-10-13 00:14:58,495 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:14:58" (1/1) ... [2021-10-13 00:14:58,503 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:14:58,553 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:14:58,985 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:14:59,003 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-10-13 00:14:59,004 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@40441a99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:14:59, skipping insertion in model container [2021-10-13 00:14:59,004 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:14:59,005 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-10-13 00:14:59,007 INFO L168 Benchmark]: Toolchain (without parser) took 519.15 ms. Allocated memory is still 121.6 MB. Free memory was 78.1 MB in the beginning and 92.8 MB in the end (delta: -14.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 00:14:59,008 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 121.6 MB. Free memory was 95.9 MB in the beginning and 95.8 MB in the end (delta: 66.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:14:59,009 INFO L168 Benchmark]: CACSL2BoogieTranslator took 516.21 ms. Allocated memory is still 121.6 MB. Free memory was 77.9 MB in the beginning and 92.8 MB in the end (delta: -14.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 00:14:59,011 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 121.6 MB. Free memory was 95.9 MB in the beginning and 95.8 MB in the end (delta: 66.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 516.21 ms. Allocated memory is still 121.6 MB. Free memory was 77.9 MB in the beginning and 92.8 MB in the end (delta: -14.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 00:15:01,356 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:15:01,360 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:15:01,417 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:15:01,418 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:15:01,423 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:15:01,425 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:15:01,431 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:15:01,434 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:15:01,440 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:15:01,441 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:15:01,443 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:15:01,444 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:15:01,446 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:15:01,449 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:15:01,453 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:15:01,455 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:15:01,456 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:15:01,458 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:15:01,466 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:15:01,468 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:15:01,469 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:15:01,472 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:15:01,474 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:15:01,483 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:15:01,484 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:15:01,484 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:15:01,487 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:15:01,487 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:15:01,489 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:15:01,489 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:15:01,490 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:15:01,492 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:15:01,493 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:15:01,495 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:15:01,495 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:15:01,496 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:15:01,496 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:15:01,497 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:15:01,498 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:15:01,499 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:15:01,500 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-13 00:15:01,541 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:15:01,542 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:15:01,542 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:15:01,543 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:15:01,545 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:15:01,545 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:15:01,546 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:15:01,546 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:15:01,546 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:15:01,547 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 00:15:01,548 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:15:01,548 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:15:01,548 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:15:01,549 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-13 00:15:01,549 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-13 00:15:01,549 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-13 00:15:01,550 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 00:15:01,550 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 00:15:01,550 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-13 00:15:01,551 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-13 00:15:01,551 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:15:01,551 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:15:01,551 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:15:01,552 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:15:01,552 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 00:15:01,552 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:15:01,553 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:15:01,553 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 00:15:01,554 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-13 00:15:01,554 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-13 00:15:01,554 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:15:01,554 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 00:15:01,555 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_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c0f55efd94c93e17f9b5d2997faae48611cbba6 [2021-10-13 00:15:01,957 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:15:01,986 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:15:01,990 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:15:01,991 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:15:01,992 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:15:01,993 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_1-2.i [2021-10-13 00:15:02,076 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/data/7d010593c/cf88d5abe81240578cc0b39505b9cf17/FLAG09c4e7ca0 [2021-10-13 00:15:02,761 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:15:02,762 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/sv-benchmarks/c/ldv-memsafety/memleaks_test22_1-2.i [2021-10-13 00:15:02,793 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/data/7d010593c/cf88d5abe81240578cc0b39505b9cf17/FLAG09c4e7ca0 [2021-10-13 00:15:03,028 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/data/7d010593c/cf88d5abe81240578cc0b39505b9cf17 [2021-10-13 00:15:03,032 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:15:03,034 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-13 00:15:03,038 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:15:03,038 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:15:03,042 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:15:03,043 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:15:03" (1/1) ... [2021-10-13 00:15:03,045 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f5cee6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:15:03, skipping insertion in model container [2021-10-13 00:15:03,045 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:15:03" (1/1) ... [2021-10-13 00:15:03,053 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:15:03,130 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:15:03,708 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:15:03,733 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-13 00:15:03,748 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:15:03,810 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:15:03,818 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:15:03,884 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:15:03,934 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:15:03,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:15:03 WrapperNode [2021-10-13 00:15:03,935 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:15:03,936 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:15:03,936 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:15:03,936 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:15:03,944 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:15:03" (1/1) ... [2021-10-13 00:15:03,945 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:15:03" (1/1) ... [2021-10-13 00:15:03,975 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:15:03" (1/1) ... [2021-10-13 00:15:03,976 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:15:03" (1/1) ... [2021-10-13 00:15:04,018 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:15:03" (1/1) ... [2021-10-13 00:15:04,038 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:15:03" (1/1) ... [2021-10-13 00:15:04,058 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:15:03" (1/1) ... [2021-10-13 00:15:04,070 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:15:04,071 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:15:04,071 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:15:04,071 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:15:04,072 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:15:03" (1/1) ... [2021-10-13 00:15:04,079 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:15:04,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:04,105 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:04,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 00:15:04,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-13 00:15:04,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:15:04,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-10-13 00:15:04,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-10-13 00:15:04,150 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-10-13 00:15:04,150 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-10-13 00:15:04,150 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-10-13 00:15:04,150 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-10-13 00:15:04,150 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-10-13 00:15:04,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-10-13 00:15:04,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-10-13 00:15:04,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-10-13 00:15:04,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-10-13 00:15:04,151 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-10-13 00:15:04,151 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-10-13 00:15:04,151 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-10-13 00:15:04,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-10-13 00:15:04,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-10-13 00:15:04,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-10-13 00:15:04,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-10-13 00:15:04,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-10-13 00:15:04,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-10-13 00:15:04,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-10-13 00:15:04,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-10-13 00:15:04,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-10-13 00:15:04,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-10-13 00:15:04,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-10-13 00:15:04,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-10-13 00:15:04,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-10-13 00:15:04,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-10-13 00:15:04,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-10-13 00:15:04,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-10-13 00:15:04,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-10-13 00:15:04,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-10-13 00:15:04,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-10-13 00:15:04,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-10-13 00:15:04,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-10-13 00:15:04,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-10-13 00:15:04,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-10-13 00:15:04,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-10-13 00:15:04,155 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-10-13 00:15:04,155 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-10-13 00:15:04,155 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-10-13 00:15:04,155 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-13 00:15:04,155 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-10-13 00:15:04,156 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-10-13 00:15:04,156 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-10-13 00:15:04,156 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-10-13 00:15:04,156 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-10-13 00:15:04,156 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-10-13 00:15:04,156 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-10-13 00:15:04,156 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-10-13 00:15:04,156 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-10-13 00:15:04,157 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-10-13 00:15:04,157 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-10-13 00:15:04,157 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-10-13 00:15:04,157 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-10-13 00:15:04,157 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-10-13 00:15:04,157 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-10-13 00:15:04,157 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-10-13 00:15:04,158 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-10-13 00:15:04,158 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-10-13 00:15:04,158 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-10-13 00:15:04,158 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-10-13 00:15:04,158 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-10-13 00:15:04,158 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-10-13 00:15:04,158 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-10-13 00:15:04,159 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-10-13 00:15:04,159 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-10-13 00:15:04,159 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-10-13 00:15:04,159 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-10-13 00:15:04,159 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-10-13 00:15:04,159 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-10-13 00:15:04,159 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-10-13 00:15:04,160 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-10-13 00:15:04,160 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-10-13 00:15:04,160 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-10-13 00:15:04,160 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-10-13 00:15:04,160 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-10-13 00:15:04,160 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-10-13 00:15:04,161 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-10-13 00:15:04,161 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-10-13 00:15:04,161 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-10-13 00:15:04,161 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-10-13 00:15:04,161 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-10-13 00:15:04,161 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-10-13 00:15:04,161 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-10-13 00:15:04,162 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-10-13 00:15:04,162 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-10-13 00:15:04,162 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-10-13 00:15:04,162 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-10-13 00:15:04,162 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-10-13 00:15:04,162 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-10-13 00:15:04,162 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-10-13 00:15:04,163 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-10-13 00:15:04,163 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-10-13 00:15:04,163 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-10-13 00:15:04,163 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-10-13 00:15:04,163 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-10-13 00:15:04,163 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-10-13 00:15:04,164 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-10-13 00:15:04,164 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-10-13 00:15:04,164 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-10-13 00:15:04,164 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-10-13 00:15:04,164 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-10-13 00:15:04,164 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-10-13 00:15:04,164 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-10-13 00:15:04,165 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-10-13 00:15:04,165 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-10-13 00:15:04,165 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-10-13 00:15:04,165 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-13 00:15:04,165 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-10-13 00:15:04,165 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-10-13 00:15:04,165 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-10-13 00:15:04,166 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-10-13 00:15:04,166 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-10-13 00:15:04,166 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-10-13 00:15:04,166 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-10-13 00:15:04,166 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-10-13 00:15:04,166 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-10-13 00:15:04,166 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-10-13 00:15:04,167 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-10-13 00:15:04,167 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-10-13 00:15:04,167 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-10-13 00:15:04,167 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-10-13 00:15:04,167 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-10-13 00:15:04,167 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-10-13 00:15:04,168 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-10-13 00:15:04,168 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-10-13 00:15:04,168 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-10-13 00:15:04,168 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-10-13 00:15:04,168 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-10-13 00:15:04,168 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-10-13 00:15:04,169 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-10-13 00:15:04,169 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-10-13 00:15:04,169 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-10-13 00:15:04,169 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-10-13 00:15:04,169 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-10-13 00:15:04,169 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-10-13 00:15:04,169 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-10-13 00:15:04,170 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-10-13 00:15:04,170 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-10-13 00:15:04,170 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-10-13 00:15:04,170 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-10-13 00:15:04,170 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-10-13 00:15:04,170 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-10-13 00:15:04,170 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-10-13 00:15:04,171 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-10-13 00:15:04,171 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-10-13 00:15:04,171 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-10-13 00:15:04,171 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-10-13 00:15:04,171 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-10-13 00:15:04,171 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-10-13 00:15:04,171 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-10-13 00:15:04,172 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-10-13 00:15:04,172 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-13 00:15:04,172 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-10-13 00:15:04,172 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-10-13 00:15:04,172 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-10-13 00:15:04,172 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-10-13 00:15:04,172 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-10-13 00:15:04,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-13 00:15:04,173 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-10-13 00:15:04,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-10-13 00:15:04,173 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-10-13 00:15:04,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-13 00:15:04,173 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-10-13 00:15:04,173 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-10-13 00:15:04,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-10-13 00:15:04,174 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-13 00:15:04,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-10-13 00:15:04,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-10-13 00:15:04,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-10-13 00:15:04,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-10-13 00:15:04,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-10-13 00:15:04,175 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-10-13 00:15:04,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 00:15:04,175 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-10-13 00:15:04,175 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-10-13 00:15:04,175 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-10-13 00:15:04,175 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-10-13 00:15:04,175 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-10-13 00:15:04,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-13 00:15:04,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-13 00:15:04,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-10-13 00:15:04,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-10-13 00:15:04,176 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-10-13 00:15:04,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-10-13 00:15:04,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-10-13 00:15:04,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-10-13 00:15:04,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-10-13 00:15:04,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-10-13 00:15:04,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-10-13 00:15:04,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-10-13 00:15:04,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-10-13 00:15:04,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-10-13 00:15:04,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-10-13 00:15:04,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-10-13 00:15:04,178 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-10-13 00:15:04,178 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-10-13 00:15:04,178 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-10-13 00:15:04,178 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-10-13 00:15:04,178 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-13 00:15:04,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-13 00:15:04,179 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:15:04,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-13 00:15:04,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:15:04,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-10-13 00:15:04,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-10-13 00:15:04,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-10-13 00:15:04,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-10-13 00:15:04,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-10-13 00:15:04,697 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 00:15:05,144 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 00:15:05,493 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:15:05,493 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-10-13 00:15:05,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:15:05 BoogieIcfgContainer [2021-10-13 00:15:05,496 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:15:05,498 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 00:15:05,498 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 00:15:05,501 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 00:15:05,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:15:03" (1/3) ... [2021-10-13 00:15:05,502 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bbc95c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:15:05, skipping insertion in model container [2021-10-13 00:15:05,502 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:15:03" (2/3) ... [2021-10-13 00:15:05,502 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bbc95c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:15:05, skipping insertion in model container [2021-10-13 00:15:05,502 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:15:05" (3/3) ... [2021-10-13 00:15:05,504 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test22_1-2.i [2021-10-13 00:15:05,517 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 00:15:05,517 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 71 error locations. [2021-10-13 00:15:05,576 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 00:15:05,582 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 00:15:05,584 INFO L340 AbstractCegarLoop]: Starting to check reachability of 71 error locations. [2021-10-13 00:15:05,607 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) [2021-10-13 00:15:05,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-13 00:15:05,615 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:15:05,616 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:15:05,616 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)] === [2021-10-13 00:15:05,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:05,623 INFO L82 PathProgramCache]: Analyzing trace with hash -1853453812, now seen corresponding path program 1 times [2021-10-13 00:15:05,634 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:15:05,635 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1769528414] [2021-10-13 00:15:05,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:05,636 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:15:05,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:15:05,639 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:15:05,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-13 00:15:05,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:15:05,813 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 00:15:05,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:15:05,938 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-13 00:15:06,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:15:06,002 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:15:06,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:15:06,115 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:15:06,115 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1769528414] [2021-10-13 00:15:06,116 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1769528414] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:15:06,117 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:15:06,117 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-13 00:15:06,120 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189237576] [2021-10-13 00:15:06,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 00:15:06,125 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:15:06,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 00:15:06,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:15:06,153 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) [2021-10-13 00:15:06,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:15:06,452 INFO L93 Difference]: Finished difference Result 132 states and 142 transitions. [2021-10-13 00:15:06,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 00:15:06,454 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 [2021-10-13 00:15:06,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:15:06,465 INFO L225 Difference]: With dead ends: 132 [2021-10-13 00:15:06,465 INFO L226 Difference]: Without dead ends: 129 [2021-10-13 00:15:06,468 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 27 SyntacticMatches, 3 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 32.4ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:15:06,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2021-10-13 00:15:06,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 123. [2021-10-13 00:15:06,554 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) [2021-10-13 00:15:06,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 133 transitions. [2021-10-13 00:15:06,559 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 133 transitions. Word has length 17 [2021-10-13 00:15:06,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:15:06,560 INFO L470 AbstractCegarLoop]: Abstraction has 123 states and 133 transitions. [2021-10-13 00:15:06,560 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) [2021-10-13 00:15:06,560 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 133 transitions. [2021-10-13 00:15:06,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-13 00:15:06,561 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:15:06,561 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:15:06,579 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:06,772 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:15:06,773 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)] === [2021-10-13 00:15:06,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:06,773 INFO L82 PathProgramCache]: Analyzing trace with hash -1853453811, now seen corresponding path program 1 times [2021-10-13 00:15:06,774 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:15:06,774 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1783930454] [2021-10-13 00:15:06,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:06,774 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:15:06,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:15:06,776 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:15:06,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-13 00:15:06,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:15:06,965 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-13 00:15:06,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:15:07,044 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-13 00:15:07,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:15:07,146 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:15:07,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:15:07,607 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:15:07,607 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1783930454] [2021-10-13 00:15:07,607 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1783930454] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:15:07,607 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:15:07,607 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-10-13 00:15:07,608 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291059626] [2021-10-13 00:15:07,609 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-13 00:15:07,609 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:15:07,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-13 00:15:07,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-10-13 00:15:07,610 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) [2021-10-13 00:15:08,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:15:08,242 INFO L93 Difference]: Finished difference Result 128 states and 138 transitions. [2021-10-13 00:15:08,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 00:15:08,243 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 [2021-10-13 00:15:08,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:15:08,247 INFO L225 Difference]: With dead ends: 128 [2021-10-13 00:15:08,247 INFO L226 Difference]: Without dead ends: 128 [2021-10-13 00:15:08,248 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 268.2ms TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-10-13 00:15:08,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2021-10-13 00:15:08,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 123. [2021-10-13 00:15:08,262 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) [2021-10-13 00:15:08,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 132 transitions. [2021-10-13 00:15:08,265 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 132 transitions. Word has length 17 [2021-10-13 00:15:08,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:15:08,266 INFO L470 AbstractCegarLoop]: Abstraction has 123 states and 132 transitions. [2021-10-13 00:15:08,266 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) [2021-10-13 00:15:08,266 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 132 transitions. [2021-10-13 00:15:08,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-13 00:15:08,267 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:15:08,268 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:15:08,288 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:08,480 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:15:08,481 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)] === [2021-10-13 00:15:08,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:08,481 INFO L82 PathProgramCache]: Analyzing trace with hash -1824824661, now seen corresponding path program 1 times [2021-10-13 00:15:08,482 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:15:08,482 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [556771137] [2021-10-13 00:15:08,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:08,482 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:15:08,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:15:08,484 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:15:08,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-13 00:15:08,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:15:08,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 00:15:08,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:15:08,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:15:08,785 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:15:08,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:15:08,897 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:15:08,898 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [556771137] [2021-10-13 00:15:08,898 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [556771137] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:15:08,898 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:15:08,898 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-13 00:15:08,898 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301994336] [2021-10-13 00:15:08,899 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 00:15:08,899 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:15:08,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 00:15:08,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:15:08,900 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) [2021-10-13 00:15:08,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:15:08,936 INFO L93 Difference]: Finished difference Result 122 states and 129 transitions. [2021-10-13 00:15:08,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 00:15:08,937 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 [2021-10-13 00:15:08,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:15:08,939 INFO L225 Difference]: With dead ends: 122 [2021-10-13 00:15:08,939 INFO L226 Difference]: Without dead ends: 122 [2021-10-13 00:15:08,940 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 24.3ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:15:08,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-10-13 00:15:08,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 120. [2021-10-13 00:15:08,949 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) [2021-10-13 00:15:08,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 127 transitions. [2021-10-13 00:15:08,951 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 127 transitions. Word has length 17 [2021-10-13 00:15:08,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:15:08,952 INFO L470 AbstractCegarLoop]: Abstraction has 120 states and 127 transitions. [2021-10-13 00:15:08,956 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) [2021-10-13 00:15:08,956 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 127 transitions. [2021-10-13 00:15:08,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-13 00:15:08,962 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:15:08,962 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:15:08,974 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:09,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:15:09,163 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)] === [2021-10-13 00:15:09,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:09,163 INFO L82 PathProgramCache]: Analyzing trace with hash -779180921, now seen corresponding path program 1 times [2021-10-13 00:15:09,164 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:15:09,164 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [50333853] [2021-10-13 00:15:09,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:09,164 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:15:09,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:15:09,168 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:15:09,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-13 00:15:09,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:15:09,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 00:15:09,375 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:15:09,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:15:09,472 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:15:09,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:15:09,604 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:15:09,604 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [50333853] [2021-10-13 00:15:09,604 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [50333853] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:15:09,605 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:15:09,605 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-13 00:15:09,605 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963604371] [2021-10-13 00:15:09,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 00:15:09,606 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:15:09,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 00:15:09,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:15:09,610 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) [2021-10-13 00:15:09,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:15:09,645 INFO L93 Difference]: Finished difference Result 122 states and 128 transitions. [2021-10-13 00:15:09,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 00:15:09,646 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 [2021-10-13 00:15:09,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:15:09,649 INFO L225 Difference]: With dead ends: 122 [2021-10-13 00:15:09,649 INFO L226 Difference]: Without dead ends: 122 [2021-10-13 00:15:09,650 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.0ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:15:09,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-10-13 00:15:09,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 120. [2021-10-13 00:15:09,674 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) [2021-10-13 00:15:09,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 126 transitions. [2021-10-13 00:15:09,678 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 126 transitions. Word has length 29 [2021-10-13 00:15:09,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:15:09,679 INFO L470 AbstractCegarLoop]: Abstraction has 120 states and 126 transitions. [2021-10-13 00:15:09,679 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) [2021-10-13 00:15:09,679 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 126 transitions. [2021-10-13 00:15:09,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-13 00:15:09,681 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:15:09,682 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:15:09,694 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-10-13 00:15:09,894 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:15:09,894 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)] === [2021-10-13 00:15:09,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:09,894 INFO L82 PathProgramCache]: Analyzing trace with hash -1776253274, now seen corresponding path program 1 times [2021-10-13 00:15:09,895 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:15:09,895 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [828525907] [2021-10-13 00:15:09,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:09,895 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:15:09,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:15:09,896 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:15:09,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-13 00:15:10,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:15:10,097 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-13 00:15:10,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:15:10,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:15:10,267 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:15:10,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:15:10,402 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:15:10,402 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [828525907] [2021-10-13 00:15:10,402 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [828525907] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:15:10,402 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:15:10,402 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-10-13 00:15:10,402 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275281751] [2021-10-13 00:15:10,403 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 00:15:10,403 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:15:10,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 00:15:10,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-13 00:15:10,404 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) [2021-10-13 00:15:10,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:15:10,455 INFO L93 Difference]: Finished difference Result 132 states and 138 transitions. [2021-10-13 00:15:10,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-13 00:15:10,456 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 [2021-10-13 00:15:10,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:15:10,457 INFO L225 Difference]: With dead ends: 132 [2021-10-13 00:15:10,457 INFO L226 Difference]: Without dead ends: 132 [2021-10-13 00:15:10,458 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 61.4ms TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-10-13 00:15:10,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2021-10-13 00:15:10,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 128. [2021-10-13 00:15:10,466 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) [2021-10-13 00:15:10,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 134 transitions. [2021-10-13 00:15:10,468 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 134 transitions. Word has length 29 [2021-10-13 00:15:10,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:15:10,468 INFO L470 AbstractCegarLoop]: Abstraction has 128 states and 134 transitions. [2021-10-13 00:15:10,469 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) [2021-10-13 00:15:10,469 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 134 transitions. [2021-10-13 00:15:10,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-13 00:15:10,470 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:15:10,470 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:15:10,482 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:10,682 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:15:10,682 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)] === [2021-10-13 00:15:10,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:10,683 INFO L82 PathProgramCache]: Analyzing trace with hash 438885256, now seen corresponding path program 1 times [2021-10-13 00:15:10,683 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:15:10,683 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [816906152] [2021-10-13 00:15:10,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:10,684 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:15:10,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:15:10,684 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:15:10,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-13 00:15:10,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:15:10,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-13 00:15:10,856 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:15:10,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:15:10,950 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:15:11,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:15:11,158 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:15:11,158 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [816906152] [2021-10-13 00:15:11,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [816906152] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:15:11,158 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:15:11,159 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-13 00:15:11,159 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192874676] [2021-10-13 00:15:11,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:15:11,159 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:15:11,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:15:11,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:15:11,160 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) [2021-10-13 00:15:11,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:15:11,318 INFO L93 Difference]: Finished difference Result 139 states and 144 transitions. [2021-10-13 00:15:11,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:15:11,319 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 [2021-10-13 00:15:11,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:15:11,320 INFO L225 Difference]: With dead ends: 139 [2021-10-13 00:15:11,320 INFO L226 Difference]: Without dead ends: 124 [2021-10-13 00:15:11,320 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:15:11,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2021-10-13 00:15:11,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 116. [2021-10-13 00:15:11,326 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) [2021-10-13 00:15:11,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 121 transitions. [2021-10-13 00:15:11,328 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 121 transitions. Word has length 27 [2021-10-13 00:15:11,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:15:11,329 INFO L470 AbstractCegarLoop]: Abstraction has 116 states and 121 transitions. [2021-10-13 00:15:11,329 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) [2021-10-13 00:15:11,329 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 121 transitions. [2021-10-13 00:15:11,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-13 00:15:11,330 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:15:11,330 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:15:11,344 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:11,530 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:15:11,531 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)] === [2021-10-13 00:15:11,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:11,531 INFO L82 PathProgramCache]: Analyzing trace with hash -972322523, now seen corresponding path program 1 times [2021-10-13 00:15:11,531 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:15:11,532 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [520252278] [2021-10-13 00:15:11,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:11,532 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:15:11,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:15:11,533 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:15:11,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-13 00:15:11,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:15:11,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 00:15:11,762 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:15:11,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:15:11,854 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:15:11,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:15:11,978 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:15:11,978 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [520252278] [2021-10-13 00:15:11,978 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [520252278] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:15:11,978 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:15:11,978 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-13 00:15:11,978 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059915639] [2021-10-13 00:15:11,979 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 00:15:11,979 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:15:11,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 00:15:11,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-13 00:15:11,980 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) [2021-10-13 00:15:12,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:15:12,027 INFO L93 Difference]: Finished difference Result 122 states and 127 transitions. [2021-10-13 00:15:12,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 00:15:12,028 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 [2021-10-13 00:15:12,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:15:12,029 INFO L225 Difference]: With dead ends: 122 [2021-10-13 00:15:12,029 INFO L226 Difference]: Without dead ends: 118 [2021-10-13 00:15:12,030 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 33.3ms TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2021-10-13 00:15:12,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2021-10-13 00:15:12,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2021-10-13 00:15:12,035 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) [2021-10-13 00:15:12,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 123 transitions. [2021-10-13 00:15:12,036 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 123 transitions. Word has length 32 [2021-10-13 00:15:12,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:15:12,037 INFO L470 AbstractCegarLoop]: Abstraction has 118 states and 123 transitions. [2021-10-13 00:15:12,037 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) [2021-10-13 00:15:12,037 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 123 transitions. [2021-10-13 00:15:12,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-13 00:15:12,038 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:15:12,038 INFO L512 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] [2021-10-13 00:15:12,053 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:12,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:15:12,253 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)] === [2021-10-13 00:15:12,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:12,254 INFO L82 PathProgramCache]: Analyzing trace with hash -1413246651, now seen corresponding path program 1 times [2021-10-13 00:15:12,254 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:15:12,254 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [381615424] [2021-10-13 00:15:12,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:12,255 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:15:12,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:15:12,256 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:15:12,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-13 00:15:12,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:15:12,479 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 00:15:12,481 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:15:12,607 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:15:12,607 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:15:12,823 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:15:12,823 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:15:12,823 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [381615424] [2021-10-13 00:15:12,823 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [381615424] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 00:15:12,824 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:15:12,824 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-10-13 00:15:12,824 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602799654] [2021-10-13 00:15:12,824 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-13 00:15:12,824 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:15:12,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-13 00:15:12,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-10-13 00:15:12,825 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) [2021-10-13 00:15:13,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:15:13,015 INFO L93 Difference]: Finished difference Result 126 states and 133 transitions. [2021-10-13 00:15:13,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-13 00:15:13,022 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 [2021-10-13 00:15:13,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:15:13,023 INFO L225 Difference]: With dead ends: 126 [2021-10-13 00:15:13,023 INFO L226 Difference]: Without dead ends: 122 [2021-10-13 00:15:13,024 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 181.1ms TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2021-10-13 00:15:13,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-10-13 00:15:13,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2021-10-13 00:15:13,028 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) [2021-10-13 00:15:13,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 127 transitions. [2021-10-13 00:15:13,029 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 127 transitions. Word has length 34 [2021-10-13 00:15:13,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:15:13,030 INFO L470 AbstractCegarLoop]: Abstraction has 122 states and 127 transitions. [2021-10-13 00:15:13,030 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) [2021-10-13 00:15:13,030 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 127 transitions. [2021-10-13 00:15:13,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-10-13 00:15:13,031 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:15:13,032 INFO L512 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] [2021-10-13 00:15:13,048 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:13,244 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:15:13,244 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)] === [2021-10-13 00:15:13,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:13,245 INFO L82 PathProgramCache]: Analyzing trace with hash -1076819579, now seen corresponding path program 2 times [2021-10-13 00:15:13,246 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:15:13,246 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1489108100] [2021-10-13 00:15:13,246 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 00:15:13,246 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:15:13,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:15:13,247 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:15:13,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-13 00:15:13,476 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-13 00:15:13,476 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:15:13,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-13 00:15:13,482 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:15:13,510 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-13 00:15:13,800 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-10-13 00:15:13,800 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:15:14,049 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-10-13 00:15:14,049 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:15:14,049 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1489108100] [2021-10-13 00:15:14,050 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1489108100] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:15:14,050 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:15:14,050 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 11 [2021-10-13 00:15:14,050 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598538497] [2021-10-13 00:15:14,050 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-13 00:15:14,051 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:15:14,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-13 00:15:14,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-10-13 00:15:14,051 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) [2021-10-13 00:15:14,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:15:14,832 INFO L93 Difference]: Finished difference Result 133 states and 137 transitions. [2021-10-13 00:15:14,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-13 00:15:14,832 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 [2021-10-13 00:15:14,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:15:14,834 INFO L225 Difference]: With dead ends: 133 [2021-10-13 00:15:14,834 INFO L226 Difference]: Without dead ends: 133 [2021-10-13 00:15:14,834 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 56 SyntacticMatches, 9 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 257.5ms TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2021-10-13 00:15:14,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2021-10-13 00:15:14,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 121. [2021-10-13 00:15:14,839 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) [2021-10-13 00:15:14,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 126 transitions. [2021-10-13 00:15:14,840 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 126 transitions. Word has length 38 [2021-10-13 00:15:14,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:15:14,841 INFO L470 AbstractCegarLoop]: Abstraction has 121 states and 126 transitions. [2021-10-13 00:15:14,841 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) [2021-10-13 00:15:14,841 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 126 transitions. [2021-10-13 00:15:14,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-10-13 00:15:14,842 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:15:14,842 INFO L512 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] [2021-10-13 00:15:14,854 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:15,054 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:15:15,054 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)] === [2021-10-13 00:15:15,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:15,055 INFO L82 PathProgramCache]: Analyzing trace with hash -1076819578, now seen corresponding path program 1 times [2021-10-13 00:15:15,055 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:15:15,056 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [910799005] [2021-10-13 00:15:15,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:15,056 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:15:15,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:15:15,057 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:15:15,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-13 00:15:15,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:15:15,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-13 00:15:15,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:15:15,499 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:15:15,499 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:15:15,970 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:15:15,970 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:15:15,970 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [910799005] [2021-10-13 00:15:15,970 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [910799005] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 00:15:15,970 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:15:15,970 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2021-10-13 00:15:15,971 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578045939] [2021-10-13 00:15:15,971 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-10-13 00:15:15,971 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:15:15,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-13 00:15:15,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2021-10-13 00:15:15,976 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) [2021-10-13 00:15:16,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:15:16,783 INFO L93 Difference]: Finished difference Result 133 states and 144 transitions. [2021-10-13 00:15:16,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-13 00:15:16,784 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 [2021-10-13 00:15:16,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:15:16,785 INFO L225 Difference]: With dead ends: 133 [2021-10-13 00:15:16,785 INFO L226 Difference]: Without dead ends: 129 [2021-10-13 00:15:16,785 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 803.2ms TimeCoverageRelationStatistics Valid=223, Invalid=377, Unknown=0, NotChecked=0, Total=600 [2021-10-13 00:15:16,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2021-10-13 00:15:16,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2021-10-13 00:15:16,789 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) [2021-10-13 00:15:16,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 134 transitions. [2021-10-13 00:15:16,790 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 134 transitions. Word has length 38 [2021-10-13 00:15:16,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:15:16,790 INFO L470 AbstractCegarLoop]: Abstraction has 129 states and 134 transitions. [2021-10-13 00:15:16,790 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) [2021-10-13 00:15:16,791 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 134 transitions. [2021-10-13 00:15:16,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-10-13 00:15:16,791 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:15:16,792 INFO L512 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] [2021-10-13 00:15:16,802 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:16,996 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:15:16,996 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)] === [2021-10-13 00:15:16,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:16,997 INFO L82 PathProgramCache]: Analyzing trace with hash -2145805818, now seen corresponding path program 2 times [2021-10-13 00:15:16,997 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:15:16,997 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [783609989] [2021-10-13 00:15:16,998 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 00:15:16,998 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:15:16,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:15:16,998 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:15:16,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-13 00:15:17,257 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-13 00:15:17,257 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:15:17,261 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-13 00:15:17,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:15:17,325 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-13 00:15:17,805 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-10-13 00:15:17,805 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:15:18,950 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-10-13 00:15:18,951 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:15:18,951 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [783609989] [2021-10-13 00:15:18,951 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [783609989] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:15:18,951 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:15:18,951 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 11] imperfect sequences [] total 22 [2021-10-13 00:15:18,952 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992826053] [2021-10-13 00:15:18,952 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-13 00:15:18,952 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:15:18,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-13 00:15:18,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2021-10-13 00:15:18,954 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) [2021-10-13 00:15:20,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:15:20,934 INFO L93 Difference]: Finished difference Result 128 states and 133 transitions. [2021-10-13 00:15:20,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-13 00:15:20,935 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 [2021-10-13 00:15:20,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:15:20,936 INFO L225 Difference]: With dead ends: 128 [2021-10-13 00:15:20,937 INFO L226 Difference]: Without dead ends: 128 [2021-10-13 00:15:20,937 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 69 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 1140.7ms TimeCoverageRelationStatistics Valid=88, Invalid=614, Unknown=0, NotChecked=0, Total=702 [2021-10-13 00:15:20,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2021-10-13 00:15:20,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2021-10-13 00:15:20,942 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) [2021-10-13 00:15:20,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 133 transitions. [2021-10-13 00:15:20,943 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 133 transitions. Word has length 46 [2021-10-13 00:15:20,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:15:20,943 INFO L470 AbstractCegarLoop]: Abstraction has 128 states and 133 transitions. [2021-10-13 00:15:20,944 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) [2021-10-13 00:15:20,944 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 133 transitions. [2021-10-13 00:15:20,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-10-13 00:15:20,955 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:15:20,956 INFO L512 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] [2021-10-13 00:15:20,965 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:21,160 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:15:21,160 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)] === [2021-10-13 00:15:21,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:21,161 INFO L82 PathProgramCache]: Analyzing trace with hash 2091386010, now seen corresponding path program 1 times [2021-10-13 00:15:21,161 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:15:21,161 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [461016067] [2021-10-13 00:15:21,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:21,162 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:15:21,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:15:21,163 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:15:21,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-10-13 00:15:21,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:15:21,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-13 00:15:21,541 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:15:21,848 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:15:21,848 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:15:23,049 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:15:23,049 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:15:23,049 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [461016067] [2021-10-13 00:15:23,049 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [461016067] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 00:15:23,050 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:15:23,050 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 34 [2021-10-13 00:15:23,050 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499706349] [2021-10-13 00:15:23,050 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-10-13 00:15:23,050 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:15:23,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-10-13 00:15:23,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=230, Invalid=892, Unknown=0, NotChecked=0, Total=1122 [2021-10-13 00:15:23,052 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) [2021-10-13 00:15:23,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:15:23,607 INFO L93 Difference]: Finished difference Result 134 states and 139 transitions. [2021-10-13 00:15:23,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-13 00:15:23,609 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 [2021-10-13 00:15:23,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:15:23,610 INFO L225 Difference]: With dead ends: 134 [2021-10-13 00:15:23,610 INFO L226 Difference]: Without dead ends: 130 [2021-10-13 00:15:23,611 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 963.1ms TimeCoverageRelationStatistics Valid=250, Invalid=940, Unknown=0, NotChecked=0, Total=1190 [2021-10-13 00:15:23,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2021-10-13 00:15:23,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2021-10-13 00:15:23,616 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) [2021-10-13 00:15:23,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 135 transitions. [2021-10-13 00:15:23,617 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 135 transitions. Word has length 51 [2021-10-13 00:15:23,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:15:23,618 INFO L470 AbstractCegarLoop]: Abstraction has 130 states and 135 transitions. [2021-10-13 00:15:23,618 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) [2021-10-13 00:15:23,618 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 135 transitions. [2021-10-13 00:15:23,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-13 00:15:23,619 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:15:23,619 INFO L512 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] [2021-10-13 00:15:23,652 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:23,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:15:23,853 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)] === [2021-10-13 00:15:23,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:23,853 INFO L82 PathProgramCache]: Analyzing trace with hash -1898067846, now seen corresponding path program 2 times [2021-10-13 00:15:23,854 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:15:23,854 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [210278070] [2021-10-13 00:15:23,854 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 00:15:23,855 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:15:23,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:15:23,856 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:15:23,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-10-13 00:15:24,272 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-13 00:15:24,272 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:15:24,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-13 00:15:24,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:15:24,320 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-13 00:15:24,663 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-13 00:15:24,663 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:15:24,904 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-13 00:15:24,904 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:15:24,905 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [210278070] [2021-10-13 00:15:24,905 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [210278070] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:15:24,905 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:15:24,905 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 11 [2021-10-13 00:15:24,905 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192993065] [2021-10-13 00:15:24,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-13 00:15:24,906 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:15:24,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-13 00:15:24,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-10-13 00:15:24,907 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) [2021-10-13 00:15:25,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:15:25,638 INFO L93 Difference]: Finished difference Result 140 states and 144 transitions. [2021-10-13 00:15:25,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-13 00:15:25,639 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 [2021-10-13 00:15:25,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:15:25,640 INFO L225 Difference]: With dead ends: 140 [2021-10-13 00:15:25,640 INFO L226 Difference]: Without dead ends: 140 [2021-10-13 00:15:25,640 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 85 SyntacticMatches, 10 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 263.5ms TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2021-10-13 00:15:25,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2021-10-13 00:15:25,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 128. [2021-10-13 00:15:25,644 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) [2021-10-13 00:15:25,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 133 transitions. [2021-10-13 00:15:25,645 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 133 transitions. Word has length 53 [2021-10-13 00:15:25,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:15:25,646 INFO L470 AbstractCegarLoop]: Abstraction has 128 states and 133 transitions. [2021-10-13 00:15:25,646 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) [2021-10-13 00:15:25,646 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 133 transitions. [2021-10-13 00:15:25,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-13 00:15:25,647 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:15:25,647 INFO L512 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] [2021-10-13 00:15:25,668 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:25,868 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:15:25,869 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)] === [2021-10-13 00:15:25,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:25,869 INFO L82 PathProgramCache]: Analyzing trace with hash -1898067845, now seen corresponding path program 1 times [2021-10-13 00:15:25,869 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:15:25,869 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1269951849] [2021-10-13 00:15:25,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:25,870 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:15:25,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:15:25,870 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:15:25,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-10-13 00:15:26,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:15:26,302 INFO L263 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-13 00:15:26,304 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:15:26,346 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-13 00:15:26,899 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-13 00:15:26,899 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:15:28,030 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-13 00:15:28,030 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:15:28,030 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1269951849] [2021-10-13 00:15:28,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1269951849] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:15:28,030 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:15:28,030 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 11] imperfect sequences [] total 22 [2021-10-13 00:15:28,031 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306503173] [2021-10-13 00:15:28,031 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-13 00:15:28,031 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:15:28,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-13 00:15:28,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2021-10-13 00:15:28,032 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) [2021-10-13 00:15:30,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:15:30,073 INFO L93 Difference]: Finished difference Result 126 states and 131 transitions. [2021-10-13 00:15:30,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-13 00:15:30,074 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 [2021-10-13 00:15:30,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:15:30,075 INFO L225 Difference]: With dead ends: 126 [2021-10-13 00:15:30,076 INFO L226 Difference]: Without dead ends: 126 [2021-10-13 00:15:30,076 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 81 SyntacticMatches, 3 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 1173.6ms TimeCoverageRelationStatistics Valid=88, Invalid=614, Unknown=0, NotChecked=0, Total=702 [2021-10-13 00:15:30,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2021-10-13 00:15:30,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2021-10-13 00:15:30,080 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) [2021-10-13 00:15:30,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 131 transitions. [2021-10-13 00:15:30,082 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 131 transitions. Word has length 53 [2021-10-13 00:15:30,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:15:30,082 INFO L470 AbstractCegarLoop]: Abstraction has 126 states and 131 transitions. [2021-10-13 00:15:30,083 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) [2021-10-13 00:15:30,083 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 131 transitions. [2021-10-13 00:15:30,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-10-13 00:15:30,084 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:15:30,084 INFO L512 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] [2021-10-13 00:15:30,101 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (15)] Ended with exit code 0 [2021-10-13 00:15:30,296 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:15:30,296 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)] === [2021-10-13 00:15:30,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:30,297 INFO L82 PathProgramCache]: Analyzing trace with hash 240730744, now seen corresponding path program 1 times [2021-10-13 00:15:30,297 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:15:30,297 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1671545334] [2021-10-13 00:15:30,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:30,297 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:15:30,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:15:30,298 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:15:30,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-10-13 00:15:30,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:15:30,691 INFO L263 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-13 00:15:30,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:15:30,839 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-13 00:15:30,839 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:15:31,045 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-13 00:15:31,045 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:15:31,045 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1671545334] [2021-10-13 00:15:31,045 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1671545334] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:15:31,045 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:15:31,046 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 8 [2021-10-13 00:15:31,046 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394376174] [2021-10-13 00:15:31,046 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-13 00:15:31,046 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:15:31,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-13 00:15:31,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-10-13 00:15:31,047 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) [2021-10-13 00:15:31,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:15:31,096 INFO L93 Difference]: Finished difference Result 128 states and 132 transitions. [2021-10-13 00:15:31,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 00:15:31,097 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 [2021-10-13 00:15:31,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:15:31,098 INFO L225 Difference]: With dead ends: 128 [2021-10-13 00:15:31,098 INFO L226 Difference]: Without dead ends: 126 [2021-10-13 00:15:31,098 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 36.6ms TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-10-13 00:15:31,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2021-10-13 00:15:31,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2021-10-13 00:15:31,115 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) [2021-10-13 00:15:31,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 130 transitions. [2021-10-13 00:15:31,117 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 130 transitions. Word has length 58 [2021-10-13 00:15:31,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:15:31,118 INFO L470 AbstractCegarLoop]: Abstraction has 126 states and 130 transitions. [2021-10-13 00:15:31,118 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) [2021-10-13 00:15:31,119 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 130 transitions. [2021-10-13 00:15:31,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-10-13 00:15:31,119 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:15:31,120 INFO L512 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] [2021-10-13 00:15:31,135 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:31,332 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:15:31,332 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)] === [2021-10-13 00:15:31,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:31,333 INFO L82 PathProgramCache]: Analyzing trace with hash -905772081, now seen corresponding path program 1 times [2021-10-13 00:15:31,333 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:15:31,333 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1409960619] [2021-10-13 00:15:31,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:31,333 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:15:31,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:15:31,335 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:15:31,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-10-13 00:15:31,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:15:31,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-13 00:15:31,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:15:32,011 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-13 00:15:32,011 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:15:32,389 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-13 00:15:32,389 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:15:32,389 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1409960619] [2021-10-13 00:15:32,389 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1409960619] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:15:32,389 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:15:32,390 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 11 [2021-10-13 00:15:32,390 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544358716] [2021-10-13 00:15:32,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-13 00:15:32,390 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:15:32,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-13 00:15:32,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-10-13 00:15:32,391 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) [2021-10-13 00:15:32,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:15:32,504 INFO L93 Difference]: Finished difference Result 130 states and 133 transitions. [2021-10-13 00:15:32,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-13 00:15:32,507 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 [2021-10-13 00:15:32,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:15:32,508 INFO L225 Difference]: With dead ends: 130 [2021-10-13 00:15:32,509 INFO L226 Difference]: Without dead ends: 126 [2021-10-13 00:15:32,509 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 106.9ms TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-10-13 00:15:32,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2021-10-13 00:15:32,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2021-10-13 00:15:32,513 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) [2021-10-13 00:15:32,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 129 transitions. [2021-10-13 00:15:32,515 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 129 transitions. Word has length 63 [2021-10-13 00:15:32,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:15:32,515 INFO L470 AbstractCegarLoop]: Abstraction has 126 states and 129 transitions. [2021-10-13 00:15:32,515 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) [2021-10-13 00:15:32,516 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 129 transitions. [2021-10-13 00:15:32,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-10-13 00:15:32,517 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:15:32,517 INFO L512 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] [2021-10-13 00:15:32,534 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (17)] Ended with exit code 0 [2021-10-13 00:15:32,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:15:32,728 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)] === [2021-10-13 00:15:32,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:32,729 INFO L82 PathProgramCache]: Analyzing trace with hash 1773831866, now seen corresponding path program 1 times [2021-10-13 00:15:32,729 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:15:32,729 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [361358322] [2021-10-13 00:15:32,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:32,730 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:15:32,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:15:32,730 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:15:32,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-10-13 00:15:33,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:15:33,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-13 00:15:33,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:15:33,262 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-13 00:15:33,763 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-13 00:15:33,763 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:15:34,168 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-13 00:15:34,168 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:15:34,168 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [361358322] [2021-10-13 00:15:34,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [361358322] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:15:34,169 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:15:34,169 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16, 15] imperfect sequences [] total 16 [2021-10-13 00:15:34,169 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69075673] [2021-10-13 00:15:34,169 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-13 00:15:34,169 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:15:34,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-13 00:15:34,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2021-10-13 00:15:34,170 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) [2021-10-13 00:15:35,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:15:35,055 INFO L93 Difference]: Finished difference Result 140 states and 142 transitions. [2021-10-13 00:15:35,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-13 00:15:35,055 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 [2021-10-13 00:15:35,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:15:35,056 INFO L225 Difference]: With dead ends: 140 [2021-10-13 00:15:35,056 INFO L226 Difference]: Without dead ends: 140 [2021-10-13 00:15:35,057 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 119 SyntacticMatches, 13 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 362.5ms TimeCoverageRelationStatistics Valid=70, Invalid=392, Unknown=0, NotChecked=0, Total=462 [2021-10-13 00:15:35,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2021-10-13 00:15:35,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 124. [2021-10-13 00:15:35,061 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) [2021-10-13 00:15:35,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 127 transitions. [2021-10-13 00:15:35,062 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 127 transitions. Word has length 74 [2021-10-13 00:15:35,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:15:35,063 INFO L470 AbstractCegarLoop]: Abstraction has 124 states and 127 transitions. [2021-10-13 00:15:35,063 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) [2021-10-13 00:15:35,063 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 127 transitions. [2021-10-13 00:15:35,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-10-13 00:15:35,064 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:15:35,064 INFO L512 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] [2021-10-13 00:15:35,079 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:35,272 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:15:35,272 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)] === [2021-10-13 00:15:35,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:35,273 INFO L82 PathProgramCache]: Analyzing trace with hash 1773831867, now seen corresponding path program 1 times [2021-10-13 00:15:35,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:15:35,273 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1705206928] [2021-10-13 00:15:35,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:35,274 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:15:35,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:15:35,279 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:15:35,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-10-13 00:15:35,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:15:35,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 32 conjunts are in the unsatisfiable core [2021-10-13 00:15:35,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:15:35,923 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-13 00:15:36,656 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-13 00:15:36,656 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:15:38,709 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-13 00:15:38,710 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:15:38,710 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1705206928] [2021-10-13 00:15:38,710 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1705206928] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:15:38,710 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:15:38,710 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17, 16] imperfect sequences [] total 32 [2021-10-13 00:15:38,710 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614698995] [2021-10-13 00:15:38,711 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-10-13 00:15:38,711 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:15:38,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-10-13 00:15:38,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=965, Unknown=0, NotChecked=0, Total=1056 [2021-10-13 00:15:38,712 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) [2021-10-13 00:15:41,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:15:41,571 INFO L93 Difference]: Finished difference Result 122 states and 125 transitions. [2021-10-13 00:15:41,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-13 00:15:41,572 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 [2021-10-13 00:15:41,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:15:41,573 INFO L225 Difference]: With dead ends: 122 [2021-10-13 00:15:41,573 INFO L226 Difference]: Without dead ends: 122 [2021-10-13 00:15:41,574 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 113 SyntacticMatches, 3 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 326 ImplicationChecksByTransitivity, 2130.9ms TimeCoverageRelationStatistics Valid=132, Invalid=1350, Unknown=0, NotChecked=0, Total=1482 [2021-10-13 00:15:41,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-10-13 00:15:41,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2021-10-13 00:15:41,578 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) [2021-10-13 00:15:41,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 125 transitions. [2021-10-13 00:15:41,579 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 125 transitions. Word has length 74 [2021-10-13 00:15:41,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:15:41,580 INFO L470 AbstractCegarLoop]: Abstraction has 122 states and 125 transitions. [2021-10-13 00:15:41,580 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) [2021-10-13 00:15:41,580 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 125 transitions. [2021-10-13 00:15:41,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-10-13 00:15:41,582 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:15:41,582 INFO L512 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] [2021-10-13 00:15:41,604 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:41,796 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:15:41,796 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)] === [2021-10-13 00:15:41,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:41,797 INFO L82 PathProgramCache]: Analyzing trace with hash 44814492, now seen corresponding path program 1 times [2021-10-13 00:15:41,797 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:15:41,797 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [874194974] [2021-10-13 00:15:41,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:41,797 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:15:41,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:15:41,798 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:15:41,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-10-13 00:15:42,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:15:42,491 INFO L263 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-13 00:15:42,493 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:15:42,733 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-13 00:15:42,733 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:15:43,089 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-13 00:15:43,089 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:15:43,089 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [874194974] [2021-10-13 00:15:43,089 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [874194974] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:15:43,089 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:15:43,089 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 11 [2021-10-13 00:15:43,089 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590913977] [2021-10-13 00:15:43,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-13 00:15:43,090 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:15:43,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-13 00:15:43,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-10-13 00:15:43,091 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) [2021-10-13 00:15:43,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:15:43,155 INFO L93 Difference]: Finished difference Result 124 states and 126 transitions. [2021-10-13 00:15:43,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-13 00:15:43,155 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 [2021-10-13 00:15:43,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:15:43,156 INFO L225 Difference]: With dead ends: 124 [2021-10-13 00:15:43,157 INFO L226 Difference]: Without dead ends: 122 [2021-10-13 00:15:43,157 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 90.5ms TimeCoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-10-13 00:15:43,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-10-13 00:15:43,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2021-10-13 00:15:43,161 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) [2021-10-13 00:15:43,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 124 transitions. [2021-10-13 00:15:43,162 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 124 transitions. Word has length 72 [2021-10-13 00:15:43,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:15:43,163 INFO L470 AbstractCegarLoop]: Abstraction has 122 states and 124 transitions. [2021-10-13 00:15:43,163 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) [2021-10-13 00:15:43,163 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 124 transitions. [2021-10-13 00:15:43,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-10-13 00:15:43,164 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:15:43,164 INFO L512 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] [2021-10-13 00:15:43,183 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:43,376 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:15:43,376 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)] === [2021-10-13 00:15:43,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:43,377 INFO L82 PathProgramCache]: Analyzing trace with hash -1162576382, now seen corresponding path program 1 times [2021-10-13 00:15:43,377 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:15:43,377 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [140362556] [2021-10-13 00:15:43,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:43,377 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:15:43,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:15:43,378 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:15:43,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-10-13 00:15:43,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:15:44,012 INFO L263 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 34 conjunts are in the unsatisfiable core [2021-10-13 00:15:44,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:15:44,045 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-13 00:15:44,757 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-13 00:15:44,758 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:15:45,350 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-13 00:15:45,350 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:15:45,350 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [140362556] [2021-10-13 00:15:45,350 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [140362556] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:15:45,350 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:15:45,351 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20, 19] imperfect sequences [] total 20 [2021-10-13 00:15:45,351 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052722249] [2021-10-13 00:15:45,351 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-13 00:15:45,352 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:15:45,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-13 00:15:45,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2021-10-13 00:15:45,353 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) [2021-10-13 00:15:46,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:15:46,851 INFO L93 Difference]: Finished difference Result 132 states and 133 transitions. [2021-10-13 00:15:46,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-13 00:15:46,851 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 [2021-10-13 00:15:46,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:15:46,853 INFO L225 Difference]: With dead ends: 132 [2021-10-13 00:15:46,853 INFO L226 Difference]: Without dead ends: 132 [2021-10-13 00:15:46,853 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 135 SyntacticMatches, 19 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 723.6ms TimeCoverageRelationStatistics Valid=92, Invalid=664, Unknown=0, NotChecked=0, Total=756 [2021-10-13 00:15:46,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2021-10-13 00:15:46,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 120. [2021-10-13 00:15:46,857 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) [2021-10-13 00:15:46,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 122 transitions. [2021-10-13 00:15:46,859 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 122 transitions. Word has length 87 [2021-10-13 00:15:46,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:15:46,860 INFO L470 AbstractCegarLoop]: Abstraction has 120 states and 122 transitions. [2021-10-13 00:15:46,860 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) [2021-10-13 00:15:46,861 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 122 transitions. [2021-10-13 00:15:46,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-10-13 00:15:46,863 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:15:46,863 INFO L512 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] [2021-10-13 00:15:46,894 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:47,064 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:15:47,064 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)] === [2021-10-13 00:15:47,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:47,065 INFO L82 PathProgramCache]: Analyzing trace with hash -1162576381, now seen corresponding path program 1 times [2021-10-13 00:15:47,065 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:15:47,065 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1787642612] [2021-10-13 00:15:47,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:47,066 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:15:47,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:15:47,067 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:15:47,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-10-13 00:15:47,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:15:47,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 44 conjunts are in the unsatisfiable core [2021-10-13 00:15:47,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:15:47,782 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-13 00:15:48,751 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-13 00:15:48,751 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:15:51,426 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-13 00:15:51,426 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:15:51,427 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1787642612] [2021-10-13 00:15:51,427 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1787642612] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:15:51,427 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:15:51,427 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21, 20] imperfect sequences [] total 40 [2021-10-13 00:15:51,427 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793430329] [2021-10-13 00:15:51,427 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2021-10-13 00:15:51,428 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:15:51,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-10-13 00:15:51,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=1525, Unknown=0, NotChecked=0, Total=1640 [2021-10-13 00:15:51,429 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) [2021-10-13 00:15:55,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:15:55,667 INFO L93 Difference]: Finished difference Result 118 states and 120 transitions. [2021-10-13 00:15:55,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-13 00:15:55,668 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 [2021-10-13 00:15:55,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:15:55,669 INFO L225 Difference]: With dead ends: 118 [2021-10-13 00:15:55,669 INFO L226 Difference]: Without dead ends: 118 [2021-10-13 00:15:55,670 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 129 SyntacticMatches, 5 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 547 ImplicationChecksByTransitivity, 3116.2ms TimeCoverageRelationStatistics Valid=170, Invalid=2182, Unknown=0, NotChecked=0, Total=2352 [2021-10-13 00:15:55,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2021-10-13 00:15:55,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2021-10-13 00:15:55,674 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) [2021-10-13 00:15:55,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 120 transitions. [2021-10-13 00:15:55,675 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 120 transitions. Word has length 87 [2021-10-13 00:15:55,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:15:55,675 INFO L470 AbstractCegarLoop]: Abstraction has 118 states and 120 transitions. [2021-10-13 00:15:55,676 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) [2021-10-13 00:15:55,676 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 120 transitions. [2021-10-13 00:15:55,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-10-13 00:15:55,677 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:15:55,677 INFO L512 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] [2021-10-13 00:15:55,713 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:55,894 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:15:55,894 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)] === [2021-10-13 00:15:55,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:55,894 INFO L82 PathProgramCache]: Analyzing trace with hash 303545963, now seen corresponding path program 1 times [2021-10-13 00:15:55,895 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:15:55,895 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [873521111] [2021-10-13 00:15:55,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:55,895 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:15:55,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:15:55,896 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:15:55,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-10-13 00:15:56,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:15:56,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 23 conjunts are in the unsatisfiable core [2021-10-13 00:15:56,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:15:58,204 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-13 00:15:58,204 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:15:59,158 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-13 00:15:59,158 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:15:59,158 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [873521111] [2021-10-13 00:15:59,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [873521111] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:15:59,159 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:15:59,159 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21, 19] imperfect sequences [] total 39 [2021-10-13 00:15:59,159 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82017726] [2021-10-13 00:15:59,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2021-10-13 00:15:59,159 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:15:59,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-10-13 00:15:59,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=1410, Unknown=0, NotChecked=0, Total=1560 [2021-10-13 00:15:59,160 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) [2021-10-13 00:16:01,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:16:01,150 INFO L93 Difference]: Finished difference Result 117 states and 119 transitions. [2021-10-13 00:16:01,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-13 00:16:01,153 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 [2021-10-13 00:16:01,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:16:01,154 INFO L225 Difference]: With dead ends: 117 [2021-10-13 00:16:01,154 INFO L226 Difference]: Without dead ends: 117 [2021-10-13 00:16:01,155 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 136 SyntacticMatches, 5 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 491 ImplicationChecksByTransitivity, 1664.7ms TimeCoverageRelationStatistics Valid=206, Invalid=1956, Unknown=0, NotChecked=0, Total=2162 [2021-10-13 00:16:01,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2021-10-13 00:16:01,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2021-10-13 00:16:01,159 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) [2021-10-13 00:16:01,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 119 transitions. [2021-10-13 00:16:01,160 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 119 transitions. Word has length 90 [2021-10-13 00:16:01,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:16:01,160 INFO L470 AbstractCegarLoop]: Abstraction has 117 states and 119 transitions. [2021-10-13 00:16:01,161 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) [2021-10-13 00:16:01,161 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 119 transitions. [2021-10-13 00:16:01,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-10-13 00:16:01,162 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:16:01,162 INFO L512 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] [2021-10-13 00:16:01,180 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (23)] Ended with exit code 0 [2021-10-13 00:16:01,380 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:16:01,380 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)] === [2021-10-13 00:16:01,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:16:01,380 INFO L82 PathProgramCache]: Analyzing trace with hash 2031958406, now seen corresponding path program 1 times [2021-10-13 00:16:01,381 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:16:01,381 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [71299658] [2021-10-13 00:16:01,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:16:01,381 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:16:01,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:16:01,382 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:16:01,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-10-13 00:16:02,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:16:02,305 INFO L263 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 115 conjunts are in the unsatisfiable core [2021-10-13 00:16:02,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:16:02,391 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 [2021-10-13 00:16:02,445 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 00:16:02,445 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 [2021-10-13 00:16:02,518 INFO L354 Elim1Store]: treesize reduction 60, result has 22.1 percent of original size [2021-10-13 00:16:02,518 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 [2021-10-13 00:16:02,640 INFO L354 Elim1Store]: treesize reduction 116, result has 18.3 percent of original size [2021-10-13 00:16:02,641 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 [2021-10-13 00:16:02,820 INFO L354 Elim1Store]: treesize reduction 172, result has 16.9 percent of original size [2021-10-13 00:16:02,821 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 [2021-10-13 00:16:03,073 INFO L354 Elim1Store]: treesize reduction 256, result has 14.7 percent of original size [2021-10-13 00:16:03,073 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 [2021-10-13 00:16:03,332 INFO L354 Elim1Store]: treesize reduction 352, result has 13.3 percent of original size [2021-10-13 00:16:03,332 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 [2021-10-13 00:16:03,690 INFO L354 Elim1Store]: treesize reduction 462, result has 12.2 percent of original size [2021-10-13 00:16:03,691 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 [2021-10-13 00:16:04,119 INFO L354 Elim1Store]: treesize reduction 540, result has 11.6 percent of original size [2021-10-13 00:16:04,120 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 [2021-10-13 00:16:04,610 INFO L354 Elim1Store]: treesize reduction 680, result has 10.5 percent of original size [2021-10-13 00:16:04,611 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 [2021-10-13 00:16:05,219 INFO L354 Elim1Store]: treesize reduction 796, result has 10.1 percent of original size [2021-10-13 00:16:05,219 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 [2021-10-13 00:16:06,065 INFO L354 Elim1Store]: treesize reduction 964, result has 9.2 percent of original size [2021-10-13 00:16:06,066 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 [2021-10-13 00:16:06,935 INFO L354 Elim1Store]: treesize reduction 1100, result has 8.9 percent of original size [2021-10-13 00:16:06,935 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 [2021-10-13 00:16:07,997 INFO L354 Elim1Store]: treesize reduction 1270, result has 8.4 percent of original size [2021-10-13 00:16:07,997 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 [2021-10-13 00:16:09,242 INFO L354 Elim1Store]: treesize reduction 1452, result has 7.9 percent of original size [2021-10-13 00:16:09,243 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 [2021-10-13 00:16:10,692 INFO L354 Elim1Store]: treesize reduction 1646, result has 7.5 percent of original size [2021-10-13 00:16:10,692 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 [2021-10-13 00:16:16,151 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 [2021-10-13 00:16:18,206 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 [2021-10-13 00:16:18,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:18,464 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 00:16:18,465 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 [2021-10-13 00:16:23,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:23,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:23,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:23,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:23,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:23,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:23,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:23,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:23,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:23,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:23,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:23,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:23,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:23,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:23,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:23,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:23,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:23,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:23,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:23,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:23,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:23,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:23,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:23,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:23,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:23,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:23,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:23,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:23,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:23,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:23,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:23,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:23,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:23,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:23,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:23,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:23,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:23,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:23,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:23,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:23,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:23,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:16:23,425 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 00:16:23,425 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 [2021-10-13 00:16:26,207 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 00:16:26,207 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 [2021-10-13 00:16:26,679 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:16:26,680 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:18:45,822 WARN L207 SmtUtils]: Spent 2.22 m on a formula simplification that was a NOOP. DAG size: 152 [2021-10-13 00:19:00,378 WARN L207 SmtUtils]: Spent 12.60 s on a formula simplification that was a NOOP. DAG size: 106 [2021-10-13 00:19:08,304 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 [2021-10-13 00:19:10,405 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$.offset)| |c_ldv_kobject_init_internal_#in~kobj.base|) (bvadd |c_ldv_kobject_init_internal_#in~kobj.offset| (_ bv12 32)) v_DerPreprocessor_17) (bvadd (_ bv13 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) v_DerPreprocessor_18) (bvadd (_ bv14 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) v_DerPreprocessor_19) (bvadd (_ bv15 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) v_DerPreprocessor_20) .cse0 .cse0) (bvadd (_ bv8 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) .cse0))) |v_ldv_kobject_init_#in~kobj.base_BEFORE_CALL_4|) |v_ldv_kobject_init_#in~kobj.offset_BEFORE_CALL_2|) (_ bv0 32)))) (= (select (select |c_#memory_$Pointer$.offset| |v_ldv_kobject_init_#in~kobj.base_BEFORE_CALL_4|) |v_ldv_kobject_init_#in~kobj.offset_BEFORE_CALL_2|) (_ bv0 32)))) is different from false [2021-10-13 00:19:12,749 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 [2021-10-13 00:19:13,013 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 00:19:13,017 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 [2021-10-13 00:19:28,327 WARN L207 SmtUtils]: Spent 15.31 s on a formula simplification that was a NOOP. DAG size: 2072 [2021-10-13 00:25:06,861 WARN L228 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2021-10-13 00:25:06,865 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:25:06,866 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [71299658] [2021-10-13 00:25:06,866 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 101 [2021-10-13 00:25:06,866 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/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") [2021-10-13 00:25:06,866 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [617192454] [2021-10-13 00:25:06,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:25:06,867 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 00:25:06,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/cvc4 [2021-10-13 00:25:06,867 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 00:25:06,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2021-10-13 00:25:08,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:25:08,846 INFO L263 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 111 conjunts are in the unsatisfiable core [2021-10-13 00:25:08,850 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:25:08,850 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken [2021-10-13 00:25:08,851 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [952622764] [2021-10-13 00:25:08,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:25:08,851 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:25:08,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:25:08,852 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:25:08,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2021-10-13 00:25:09,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:25:09,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 117 conjunts are in the unsatisfiable core [2021-10-13 00:25:09,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:25:09,952 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken [2021-10-13 00:25:09,953 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:25:09,953 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-10-13 00:25:09,953 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-10-13 00:25:09,953 INFO L626 BasicCegarLoop]: Counterexample might be feasible [2021-10-13 00:25:09,961 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:25:09,962 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION [2021-10-13 00:25:09,963 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION [2021-10-13 00:25:09,963 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION [2021-10-13 00:25:09,963 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION [2021-10-13 00:25:09,963 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION [2021-10-13 00:25:09,963 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION [2021-10-13 00:25:09,964 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION [2021-10-13 00:25:09,964 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION [2021-10-13 00:25:09,964 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION [2021-10-13 00:25:09,964 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION [2021-10-13 00:25:09,964 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION [2021-10-13 00:25:09,964 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION [2021-10-13 00:25:09,965 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION [2021-10-13 00:25:09,965 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION [2021-10-13 00:25:09,965 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION [2021-10-13 00:25:09,965 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION [2021-10-13 00:25:09,965 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION [2021-10-13 00:25:09,965 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION [2021-10-13 00:25:09,966 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION [2021-10-13 00:25:09,966 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION [2021-10-13 00:25:09,966 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION [2021-10-13 00:25:09,966 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION [2021-10-13 00:25:09,966 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION [2021-10-13 00:25:09,966 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION [2021-10-13 00:25:09,967 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION [2021-10-13 00:25:09,967 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION [2021-10-13 00:25:09,967 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION [2021-10-13 00:25:09,967 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION [2021-10-13 00:25:09,967 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION [2021-10-13 00:25:09,967 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION [2021-10-13 00:25:09,968 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION [2021-10-13 00:25:09,968 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION [2021-10-13 00:25:09,968 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION [2021-10-13 00:25:09,968 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION [2021-10-13 00:25:09,968 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION [2021-10-13 00:25:09,969 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION [2021-10-13 00:25:09,969 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION [2021-10-13 00:25:09,969 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION [2021-10-13 00:25:09,969 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION [2021-10-13 00:25:09,969 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION [2021-10-13 00:25:09,969 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION [2021-10-13 00:25:09,970 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION [2021-10-13 00:25:09,970 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:25:09,970 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:25:09,970 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:25:09,970 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:25:09,970 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:25:09,971 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:25:09,971 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-10-13 00:25:09,971 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION [2021-10-13 00:25:09,971 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION [2021-10-13 00:25:09,971 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION [2021-10-13 00:25:09,972 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION [2021-10-13 00:25:09,972 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION [2021-10-13 00:25:09,972 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION [2021-10-13 00:25:09,972 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION [2021-10-13 00:25:09,972 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION [2021-10-13 00:25:09,972 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:25:09,973 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:25:09,973 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:25:09,973 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:25:09,973 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:25:09,973 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION [2021-10-13 00:25:09,974 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION [2021-10-13 00:25:09,974 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION [2021-10-13 00:25:09,974 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION [2021-10-13 00:25:09,974 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION [2021-10-13 00:25:09,974 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION [2021-10-13 00:25:09,974 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION [2021-10-13 00:25:09,975 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION [2021-10-13 00:25:10,018 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2021-10-13 00:25:10,210 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2021-10-13 00:25:10,397 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/cvc4 --incremental --print-success --lang smt (25)] Ended with exit code 0 [2021-10-13 00:25:10,588 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6c8f4d0-c242-4be9-9d06-d4c26c722087/bin/uautomizer-WNIpwEf4Nt/cvc4 --incremental --print-success --lang smt [2021-10-13 00:25:10,595 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 00:25:10,599 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2021-10-13 00:25:10,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 12:25:10 BoogieIcfgContainer [2021-10-13 00:25:10,611 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 00:25:10,611 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:25:10,611 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:25:10,612 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:25:10,612 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:15:05" (3/4) ... [2021-10-13 00:25:10,617 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-13 00:25:10,617 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:25:10,618 INFO L168 Benchmark]: Toolchain (without parser) took 607583.52 ms. Allocated memory was 71.3 MB in the beginning and 1.4 GB in the end (delta: 1.3 GB). Free memory was 53.7 MB in the beginning and 1.1 GB in the end (delta: -1.1 GB). Peak memory consumption was 260.2 MB. Max. memory is 16.1 GB. [2021-10-13 00:25:10,619 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 71.3 MB. Free memory is still 53.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:25:10,619 INFO L168 Benchmark]: CACSL2BoogieTranslator took 897.00 ms. Allocated memory is still 71.3 MB. Free memory was 53.5 MB in the beginning and 37.7 MB in the end (delta: 15.8 MB). Peak memory consumption was 15.7 MB. Max. memory is 16.1 GB. [2021-10-13 00:25:10,620 INFO L168 Benchmark]: Boogie Preprocessor took 134.34 ms. Allocated memory was 71.3 MB in the beginning and 92.3 MB in the end (delta: 21.0 MB). Free memory was 37.7 MB in the beginning and 73.4 MB in the end (delta: -35.7 MB). Peak memory consumption was 8.0 MB. Max. memory is 16.1 GB. [2021-10-13 00:25:10,620 INFO L168 Benchmark]: RCFGBuilder took 1425.60 ms. Allocated memory is still 92.3 MB. Free memory was 73.2 MB in the beginning and 57.1 MB in the end (delta: 16.0 MB). Peak memory consumption was 34.9 MB. Max. memory is 16.1 GB. [2021-10-13 00:25:10,620 INFO L168 Benchmark]: TraceAbstraction took 605112.84 ms. Allocated memory was 92.3 MB in the beginning and 1.4 GB in the end (delta: 1.3 GB). Free memory was 56.6 MB in the beginning and 1.1 GB in the end (delta: -1.0 GB). Peak memory consumption was 241.4 MB. Max. memory is 16.1 GB. [2021-10-13 00:25:10,621 INFO L168 Benchmark]: Witness Printer took 5.78 ms. Allocated memory is still 1.4 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:25:10,627 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 71.3 MB. Free memory is still 53.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 897.00 ms. Allocated memory is still 71.3 MB. Free memory was 53.5 MB in the beginning and 37.7 MB in the end (delta: 15.8 MB). Peak memory consumption was 15.7 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 134.34 ms. Allocated memory was 71.3 MB in the beginning and 92.3 MB in the end (delta: 21.0 MB). Free memory was 37.7 MB in the beginning and 73.4 MB in the end (delta: -35.7 MB). Peak memory consumption was 8.0 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1425.60 ms. Allocated memory is still 92.3 MB. Free memory was 73.2 MB in the beginning and 57.1 MB in the end (delta: 16.0 MB). Peak memory consumption was 34.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 605112.84 ms. Allocated memory was 92.3 MB in the beginning and 1.4 GB in the end (delta: 1.3 GB). Free memory was 56.6 MB in the beginning and 1.1 GB in the end (delta: -1.0 GB). Peak memory consumption was 241.4 MB. Max. memory is 16.1 GB. * Witness Printer took 5.78 ms. Allocated memory is still 1.4 GB. Free memory is still 1.1 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, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 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: 605018.2ms, OverallIterations: 23, TraceHistogramMax: 16, EmptinessCheckTime: 51.9ms, AutomataDifference: 20175.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 17.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 2248 SDtfs, 1152 SDslu, 16433 SDs, 0 SdLazy, 8636 SolverSat, 313 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 14704.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2216 GetRequests, 1768 SyntacticMatches, 71 SemanticMatches, 377 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1926 ImplicationChecksByTransitivity, 13448.7ms Time, 0.0ms 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, 0.0ms DumpTime, AutomataMinimizationStatistics: 235.9ms AutomataMinimizationTime, 22 MinimizatonAttempts, 79 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 323.3ms SsaConstructionTime, 1642.2ms SatisfiabilityAnalysisTime, 22307.7ms InterpolantComputationTime, 1086 NumberOfCodeBlocks, 1050 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 2128 ConstructedInterpolants, 306 QuantifiedInterpolants, 9130 SizeOfPredicates, 94 NumberOfNonLiveVariables, 4649 ConjunctsInSsa, 323 ConjunctsInUnsatCore, 44 InterpolantComputations, 38 PerfectInterpolantSequences, 2972/3230 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...