./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL --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 27e059eb1633b1ab9c045484375455e2667fa3360a55d0bc53eccfa53fe7600f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 05:40:53,274 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 05:40:53,285 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 05:40:53,346 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 05:40:53,347 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 05:40:53,351 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 05:40:53,354 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 05:40:53,359 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 05:40:53,363 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 05:40:53,373 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 05:40:53,374 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 05:40:53,377 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 05:40:53,377 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 05:40:53,381 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 05:40:53,386 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 05:40:53,395 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 05:40:53,398 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 05:40:53,400 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 05:40:53,403 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 05:40:53,409 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 05:40:53,414 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 05:40:53,417 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 05:40:53,421 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 05:40:53,423 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 05:40:53,433 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 05:40:53,440 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 05:40:53,440 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 05:40:53,442 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 05:40:53,444 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 05:40:53,445 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 05:40:53,446 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 05:40:53,448 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 05:40:53,450 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 05:40:53,451 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 05:40:53,454 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 05:40:53,454 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 05:40:53,455 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 05:40:53,456 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 05:40:53,456 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 05:40:53,457 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 05:40:53,458 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 05:40:53,459 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-11-19 05:40:53,516 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 05:40:53,516 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 05:40:53,517 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-19 05:40:53,517 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-19 05:40:53,526 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 05:40:53,527 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 05:40:53,528 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 05:40:53,528 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 05:40:53,528 INFO L138 SettingsManager]: * Use SBE=true [2021-11-19 05:40:53,529 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 05:40:53,530 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 05:40:53,531 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-19 05:40:53,531 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 05:40:53,531 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 05:40:53,531 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 05:40:53,532 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-19 05:40:53,532 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-19 05:40:53,532 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-19 05:40:53,533 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 05:40:53,533 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 05:40:53,533 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 05:40:53,533 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 05:40:53,534 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 05:40:53,534 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 05:40:53,534 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 05:40:53,534 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 05:40:53,535 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 05:40:53,535 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 05:40:53,535 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-19 05:40:53,537 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 05:40:53,538 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 05:40:53,538 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_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 27e059eb1633b1ab9c045484375455e2667fa3360a55d0bc53eccfa53fe7600f [2021-11-19 05:40:53,906 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 05:40:53,929 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 05:40:53,932 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 05:40:53,934 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 05:40:53,935 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 05:40:53,937 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_2.i [2021-11-19 05:40:54,009 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/data/70df19a49/1dbbe6f2615a48618abc8e0d1391b94f/FLAG88db55370 [2021-11-19 05:40:54,717 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 05:40:54,722 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/sv-benchmarks/c/ldv-memsafety/memleaks_test18_2.i [2021-11-19 05:40:54,751 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/data/70df19a49/1dbbe6f2615a48618abc8e0d1391b94f/FLAG88db55370 [2021-11-19 05:40:54,953 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/data/70df19a49/1dbbe6f2615a48618abc8e0d1391b94f [2021-11-19 05:40:54,956 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 05:40:54,958 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-11-19 05:40:54,975 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 05:40:54,975 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 05:40:54,979 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 05:40:54,980 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:40:54" (1/1) ... [2021-11-19 05:40:54,982 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13381f5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:40:54, skipping insertion in model container [2021-11-19 05:40:54,982 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:40:54" (1/1) ... [2021-11-19 05:40:54,991 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 05:40:55,053 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 05:40:55,566 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 05:40:55,595 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) [2021-11-19 05:40:55,597 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@323f0daa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:40:55, skipping insertion in model container [2021-11-19 05:40:55,597 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 05:40:55,598 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-11-19 05:40:55,602 INFO L158 Benchmark]: Toolchain (without parser) took 641.59ms. Allocated memory is still 98.6MB. Free memory was 58.3MB in the beginning and 69.6MB in the end (delta: -11.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-19 05:40:55,603 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 98.6MB. Free memory is still 76.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 05:40:55,605 INFO L158 Benchmark]: CACSL2BoogieTranslator took 623.29ms. Allocated memory is still 98.6MB. Free memory was 58.1MB in the beginning and 69.6MB in the end (delta: -11.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-19 05:40:55,608 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 98.6MB. Free memory is still 76.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 623.29ms. Allocated memory is still 98.6MB. Free memory was 58.1MB in the beginning and 69.6MB in the end (delta: -11.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * 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... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL --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 27e059eb1633b1ab9c045484375455e2667fa3360a55d0bc53eccfa53fe7600f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 05:40:58,391 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 05:40:58,396 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 05:40:58,476 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 05:40:58,477 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 05:40:58,485 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 05:40:58,489 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 05:40:58,498 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 05:40:58,503 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 05:40:58,510 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 05:40:58,512 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 05:40:58,515 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 05:40:58,516 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 05:40:58,519 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 05:40:58,522 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 05:40:58,525 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 05:40:58,528 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 05:40:58,529 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 05:40:58,536 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 05:40:58,545 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 05:40:58,548 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 05:40:58,550 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 05:40:58,554 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 05:40:58,556 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 05:40:58,564 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 05:40:58,564 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 05:40:58,565 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 05:40:58,567 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 05:40:58,568 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 05:40:58,570 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 05:40:58,570 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 05:40:58,571 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 05:40:58,574 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 05:40:58,575 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 05:40:58,577 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 05:40:58,578 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 05:40:58,579 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 05:40:58,579 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 05:40:58,580 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 05:40:58,582 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 05:40:58,583 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 05:40:58,590 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-11-19 05:40:58,644 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 05:40:58,645 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 05:40:58,646 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-19 05:40:58,646 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-19 05:40:58,647 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 05:40:58,647 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 05:40:58,649 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 05:40:58,649 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 05:40:58,649 INFO L138 SettingsManager]: * Use SBE=true [2021-11-19 05:40:58,650 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 05:40:58,651 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 05:40:58,651 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-19 05:40:58,651 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 05:40:58,652 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 05:40:58,652 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 05:40:58,652 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-19 05:40:58,652 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-19 05:40:58,652 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-19 05:40:58,653 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 05:40:58,653 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 05:40:58,653 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 05:40:58,653 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 05:40:58,654 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 05:40:58,654 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 05:40:58,654 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 05:40:58,654 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 05:40:58,655 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 05:40:58,655 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 05:40:58,655 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 05:40:58,655 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 05:40:58,656 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-19 05:40:58,656 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 05:40:58,656 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 05:40:58,657 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 05:40:58,657 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_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 27e059eb1633b1ab9c045484375455e2667fa3360a55d0bc53eccfa53fe7600f [2021-11-19 05:40:59,100 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 05:40:59,151 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 05:40:59,154 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 05:40:59,156 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 05:40:59,157 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 05:40:59,158 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_2.i [2021-11-19 05:40:59,248 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/data/4eb2b750e/6b770b93a4b84aa7a65d992a045744f9/FLAG7182c70a8 [2021-11-19 05:41:00,193 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 05:41:00,194 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/sv-benchmarks/c/ldv-memsafety/memleaks_test18_2.i [2021-11-19 05:41:00,219 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/data/4eb2b750e/6b770b93a4b84aa7a65d992a045744f9/FLAG7182c70a8 [2021-11-19 05:41:00,258 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/data/4eb2b750e/6b770b93a4b84aa7a65d992a045744f9 [2021-11-19 05:41:00,261 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 05:41:00,262 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-11-19 05:41:00,264 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 05:41:00,264 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 05:41:00,269 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 05:41:00,270 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:41:00" (1/1) ... [2021-11-19 05:41:00,273 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@954cb4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:41:00, skipping insertion in model container [2021-11-19 05:41:00,274 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:41:00" (1/1) ... [2021-11-19 05:41:00,283 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 05:41:00,353 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 05:41:01,034 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 05:41:01,062 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 05:41:01,083 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 05:41:01,182 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 05:41:01,204 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 05:41:01,283 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 05:41:01,362 INFO L208 MainTranslator]: Completed translation [2021-11-19 05:41:01,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:41:01 WrapperNode [2021-11-19 05:41:01,363 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 05:41:01,365 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 05:41:01,365 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 05:41:01,365 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 05:41:01,380 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:41:01" (1/1) ... [2021-11-19 05:41:01,381 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:41:01" (1/1) ... [2021-11-19 05:41:01,421 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:41:01" (1/1) ... [2021-11-19 05:41:01,422 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:41:01" (1/1) ... [2021-11-19 05:41:01,464 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:41:01" (1/1) ... [2021-11-19 05:41:01,472 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:41:01" (1/1) ... [2021-11-19 05:41:01,487 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:41:01" (1/1) ... [2021-11-19 05:41:01,502 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 05:41:01,503 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 05:41:01,503 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 05:41:01,504 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 05:41:01,505 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:41:01" (1/1) ... [2021-11-19 05:41:01,525 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 05:41:01,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:41:01,564 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 05:41:01,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 05:41:01,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-11-19 05:41:01,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 05:41:01,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 05:41:01,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-11-19 05:41:01,634 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-11-19 05:41:01,634 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-11-19 05:41:01,634 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-11-19 05:41:01,634 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-11-19 05:41:01,635 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-11-19 05:41:01,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-11-19 05:41:01,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-11-19 05:41:01,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-19 05:41:01,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-19 05:41:01,636 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-11-19 05:41:01,636 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-11-19 05:41:01,637 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-11-19 05:41:01,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-11-19 05:41:01,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-11-19 05:41:01,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-11-19 05:41:01,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-11-19 05:41:01,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-11-19 05:41:01,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-11-19 05:41:01,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-11-19 05:41:01,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-11-19 05:41:01,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-11-19 05:41:01,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-19 05:41:01,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-11-19 05:41:01,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-11-19 05:41:01,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-11-19 05:41:01,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-11-19 05:41:01,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-11-19 05:41:01,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-11-19 05:41:01,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-11-19 05:41:01,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-11-19 05:41:01,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-11-19 05:41:01,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-11-19 05:41:01,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-11-19 05:41:01,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-11-19 05:41:01,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-11-19 05:41:01,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-11-19 05:41:01,644 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-11-19 05:41:01,644 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-11-19 05:41:01,645 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-11-19 05:41:01,645 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-11-19 05:41:01,645 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-19 05:41:01,646 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-19 05:41:01,647 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-19 05:41:01,647 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-11-19 05:41:01,648 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-11-19 05:41:01,648 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-11-19 05:41:01,648 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-11-19 05:41:01,649 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-11-19 05:41:01,649 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-11-19 05:41:01,649 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-11-19 05:41:01,650 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-11-19 05:41:01,650 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-11-19 05:41:01,651 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-11-19 05:41:01,651 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-11-19 05:41:01,652 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-11-19 05:41:01,652 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-11-19 05:41:01,654 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-11-19 05:41:01,654 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-11-19 05:41:01,654 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-11-19 05:41:01,656 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-11-19 05:41:01,656 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-11-19 05:41:01,656 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-11-19 05:41:01,656 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-11-19 05:41:01,657 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-11-19 05:41:01,657 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-11-19 05:41:01,657 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-11-19 05:41:01,658 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-11-19 05:41:01,658 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-11-19 05:41:01,659 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-11-19 05:41:01,659 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-11-19 05:41:01,659 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-11-19 05:41:01,659 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-11-19 05:41:01,660 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-11-19 05:41:01,660 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-11-19 05:41:01,661 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-11-19 05:41:01,661 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-11-19 05:41:01,662 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-11-19 05:41:01,662 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-11-19 05:41:01,662 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-11-19 05:41:01,663 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-11-19 05:41:01,663 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-11-19 05:41:01,663 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-11-19 05:41:01,663 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-11-19 05:41:01,664 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-11-19 05:41:01,664 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-11-19 05:41:01,664 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-11-19 05:41:01,664 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-11-19 05:41:01,665 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-11-19 05:41:01,665 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-11-19 05:41:01,665 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-11-19 05:41:01,665 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-11-19 05:41:01,666 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-11-19 05:41:01,666 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-11-19 05:41:01,666 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-11-19 05:41:01,667 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-11-19 05:41:01,667 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-11-19 05:41:01,667 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-11-19 05:41:01,668 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-11-19 05:41:01,669 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-11-19 05:41:01,669 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-11-19 05:41:01,670 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-11-19 05:41:01,670 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-11-19 05:41:01,670 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-11-19 05:41:01,670 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-11-19 05:41:01,671 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-11-19 05:41:01,671 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-11-19 05:41:01,671 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-11-19 05:41:01,671 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-11-19 05:41:01,672 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-11-19 05:41:01,672 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-11-19 05:41:01,672 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-11-19 05:41:01,673 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-11-19 05:41:01,673 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-11-19 05:41:01,673 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-11-19 05:41:01,674 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-11-19 05:41:01,674 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-11-19 05:41:01,675 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-11-19 05:41:01,676 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-11-19 05:41:01,679 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-11-19 05:41:01,680 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-11-19 05:41:01,680 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-11-19 05:41:01,680 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-11-19 05:41:01,681 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-11-19 05:41:01,682 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-11-19 05:41:01,683 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-11-19 05:41:01,683 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-11-19 05:41:01,683 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-11-19 05:41:01,690 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-11-19 05:41:01,690 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-11-19 05:41:01,691 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-11-19 05:41:01,691 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-11-19 05:41:01,691 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-11-19 05:41:01,691 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-11-19 05:41:01,692 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-11-19 05:41:01,692 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-11-19 05:41:01,692 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-11-19 05:41:01,692 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-11-19 05:41:01,693 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-11-19 05:41:01,693 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-11-19 05:41:01,693 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-11-19 05:41:01,694 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-11-19 05:41:01,694 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-11-19 05:41:01,694 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-11-19 05:41:01,694 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-11-19 05:41:01,695 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-11-19 05:41:01,695 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-11-19 05:41:01,695 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-11-19 05:41:01,695 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-11-19 05:41:01,696 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-11-19 05:41:01,696 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-11-19 05:41:01,696 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-19 05:41:01,696 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-11-19 05:41:01,697 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-11-19 05:41:01,697 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-11-19 05:41:01,697 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-11-19 05:41:01,697 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-11-19 05:41:01,698 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-19 05:41:01,698 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 05:41:01,698 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-19 05:41:01,698 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-19 05:41:01,699 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-11-19 05:41:01,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 05:41:01,699 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-11-19 05:41:01,699 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-11-19 05:41:01,699 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-11-19 05:41:01,700 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 05:41:01,700 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-11-19 05:41:01,700 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-11-19 05:41:01,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-11-19 05:41:01,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-11-19 05:41:01,701 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-19 05:41:01,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-11-19 05:41:01,702 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 05:41:01,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-11-19 05:41:01,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-11-19 05:41:01,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-11-19 05:41:01,703 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-19 05:41:01,703 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-11-19 05:41:01,703 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 05:41:01,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 05:41:01,704 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-11-19 05:41:01,704 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-11-19 05:41:01,704 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 05:41:01,704 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-11-19 05:41:01,704 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-11-19 05:41:01,705 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-11-19 05:41:01,706 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-11-19 05:41:01,706 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-11-19 05:41:01,706 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-11-19 05:41:01,707 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-11-19 05:41:01,707 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-11-19 05:41:01,707 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-11-19 05:41:01,707 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-11-19 05:41:01,708 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-11-19 05:41:01,708 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-19 05:41:01,708 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-11-19 05:41:01,708 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-11-19 05:41:01,708 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-11-19 05:41:01,709 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-11-19 05:41:01,709 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-11-19 05:41:01,709 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 05:41:01,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 05:41:01,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 05:41:01,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-11-19 05:41:01,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-19 05:41:01,710 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-19 05:41:01,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-19 05:41:01,711 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-19 05:41:02,212 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 05:41:02,216 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 05:41:02,475 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-19 05:41:02,985 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-19 05:41:03,493 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 05:41:03,507 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 05:41:03,507 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-19 05:41:03,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:41:03 BoogieIcfgContainer [2021-11-19 05:41:03,511 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 05:41:03,514 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 05:41:03,514 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 05:41:03,517 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 05:41:03,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:41:00" (1/3) ... [2021-11-19 05:41:03,519 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35077adf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:41:03, skipping insertion in model container [2021-11-19 05:41:03,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:41:01" (2/3) ... [2021-11-19 05:41:03,519 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35077adf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:41:03, skipping insertion in model container [2021-11-19 05:41:03,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:41:03" (3/3) ... [2021-11-19 05:41:03,521 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test18_2.i [2021-11-19 05:41:03,528 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 05:41:03,528 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 81 error locations. [2021-11-19 05:41:03,598 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 05:41:03,614 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 05:41:03,614 INFO L340 AbstractCegarLoop]: Starting to check reachability of 81 error locations. [2021-11-19 05:41:03,638 INFO L276 IsEmpty]: Start isEmpty. Operand has 117 states, 66 states have (on average 1.606060606060606) internal successors, (106), 94 states have internal predecessors, (106), 12 states have call successors, (12), 10 states have call predecessors, (12), 10 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2021-11-19 05:41:03,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-19 05:41:03,649 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:41:03,649 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 05:41:03,650 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-11-19 05:41:03,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:41:03,658 INFO L85 PathProgramCache]: Analyzing trace with hash -114808450, now seen corresponding path program 1 times [2021-11-19 05:41:03,685 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 05:41:03,685 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [107351161] [2021-11-19 05:41:03,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:41:03,686 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 05:41:03,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 05:41:03,692 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 05:41:03,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 05:41:03,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:41:03,938 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 05:41:03,944 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:41:04,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:41:04,142 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 05:41:04,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:41:04,296 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 05:41:04,296 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [107351161] [2021-11-19 05:41:04,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [107351161] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 05:41:04,297 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:41:04,300 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-19 05:41:04,302 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937507018] [2021-11-19 05:41:04,303 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 05:41:04,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 05:41:04,312 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 05:41:04,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 05:41:04,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-19 05:41:04,370 INFO L87 Difference]: Start difference. First operand has 117 states, 66 states have (on average 1.606060606060606) internal successors, (106), 94 states have internal predecessors, (106), 12 states have call successors, (12), 10 states have call predecessors, (12), 10 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) 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, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-19 05:41:04,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:41:04,582 INFO L93 Difference]: Finished difference Result 78 states and 90 transitions. [2021-11-19 05:41:04,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 05:41:04,586 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, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 17 [2021-11-19 05:41:04,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:41:04,596 INFO L225 Difference]: With dead ends: 78 [2021-11-19 05:41:04,597 INFO L226 Difference]: Without dead ends: 75 [2021-11-19 05:41:04,599 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-19 05:41:04,603 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 30 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 05:41:04,604 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 167 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 05:41:04,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2021-11-19 05:41:04,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 48. [2021-11-19 05:41:04,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 28 states have (on average 1.5357142857142858) internal successors, (43), 38 states have internal predecessors, (43), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2021-11-19 05:41:04,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 54 transitions. [2021-11-19 05:41:04,654 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 54 transitions. Word has length 17 [2021-11-19 05:41:04,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:41:04,655 INFO L470 AbstractCegarLoop]: Abstraction has 48 states and 54 transitions. [2021-11-19 05:41:04,655 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, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-19 05:41:04,655 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 54 transitions. [2021-11-19 05:41:04,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-19 05:41:04,657 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:41:04,657 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 05:41:04,672 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 05:41:04,860 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 05:41:04,861 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-11-19 05:41:04,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:41:04,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1628001885, now seen corresponding path program 1 times [2021-11-19 05:41:04,862 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 05:41:04,862 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1819634142] [2021-11-19 05:41:04,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:41:04,863 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 05:41:04,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 05:41:04,864 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 05:41:04,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 05:41:05,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:41:05,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 05:41:05,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:41:05,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:41:05,151 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 05:41:05,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:41:05,273 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 05:41:05,274 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1819634142] [2021-11-19 05:41:05,274 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1819634142] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 05:41:05,274 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:41:05,274 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-19 05:41:05,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564716463] [2021-11-19 05:41:05,275 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 05:41:05,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 05:41:05,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 05:41:05,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 05:41:05,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 05:41:05,278 INFO L87 Difference]: Start difference. First operand 48 states and 54 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-19 05:41:05,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:41:05,394 INFO L93 Difference]: Finished difference Result 76 states and 86 transitions. [2021-11-19 05:41:05,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 05:41:05,395 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 17 [2021-11-19 05:41:05,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:41:05,397 INFO L225 Difference]: With dead ends: 76 [2021-11-19 05:41:05,397 INFO L226 Difference]: Without dead ends: 73 [2021-11-19 05:41:05,397 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 05:41:05,399 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 26 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 05:41:05,400 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 98 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 05:41:05,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-11-19 05:41:05,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 54. [2021-11-19 05:41:05,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 33 states have (on average 1.5151515151515151) internal successors, (50), 43 states have internal predecessors, (50), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) [2021-11-19 05:41:05,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 64 transitions. [2021-11-19 05:41:05,412 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 64 transitions. Word has length 17 [2021-11-19 05:41:05,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:41:05,413 INFO L470 AbstractCegarLoop]: Abstraction has 54 states and 64 transitions. [2021-11-19 05:41:05,413 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-19 05:41:05,413 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 64 transitions. [2021-11-19 05:41:05,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-19 05:41:05,414 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:41:05,414 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 05:41:05,441 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 05:41:05,641 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 05:41:05,642 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-11-19 05:41:05,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:41:05,642 INFO L85 PathProgramCache]: Analyzing trace with hash 735393073, now seen corresponding path program 1 times [2021-11-19 05:41:05,643 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 05:41:05,643 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [17942120] [2021-11-19 05:41:05,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:41:05,644 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 05:41:05,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 05:41:05,645 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 05:41:05,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 05:41:05,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:41:05,830 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 05:41:05,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:41:05,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:41:05,936 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 05:41:06,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:41:06,031 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 05:41:06,032 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [17942120] [2021-11-19 05:41:06,033 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [17942120] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 05:41:06,033 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:41:06,033 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-19 05:41:06,033 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47387202] [2021-11-19 05:41:06,034 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 05:41:06,034 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 05:41:06,034 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 05:41:06,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 05:41:06,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 05:41:06,041 INFO L87 Difference]: Start difference. First operand 54 states and 64 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2021-11-19 05:41:06,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:41:06,154 INFO L93 Difference]: Finished difference Result 92 states and 111 transitions. [2021-11-19 05:41:06,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 05:41:06,158 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 18 [2021-11-19 05:41:06,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:41:06,160 INFO L225 Difference]: With dead ends: 92 [2021-11-19 05:41:06,160 INFO L226 Difference]: Without dead ends: 92 [2021-11-19 05:41:06,161 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2021-11-19 05:41:06,166 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 170 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 05:41:06,171 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 95 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 05:41:06,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2021-11-19 05:41:06,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 63. [2021-11-19 05:41:06,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 40 states have (on average 1.5) internal successors, (60), 51 states have internal predecessors, (60), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2021-11-19 05:41:06,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 80 transitions. [2021-11-19 05:41:06,199 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 80 transitions. Word has length 18 [2021-11-19 05:41:06,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:41:06,202 INFO L470 AbstractCegarLoop]: Abstraction has 63 states and 80 transitions. [2021-11-19 05:41:06,202 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2021-11-19 05:41:06,203 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 80 transitions. [2021-11-19 05:41:06,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-19 05:41:06,205 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:41:06,205 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 05:41:06,218 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-19 05:41:06,420 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 05:41:06,422 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting entry_pointErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-11-19 05:41:06,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:41:06,423 INFO L85 PathProgramCache]: Analyzing trace with hash -529470855, now seen corresponding path program 1 times [2021-11-19 05:41:06,423 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 05:41:06,423 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2114208678] [2021-11-19 05:41:06,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:41:06,424 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 05:41:06,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 05:41:06,425 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 05:41:06,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 05:41:06,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:41:06,619 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-19 05:41:06,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:41:06,680 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-19 05:41:06,820 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-19 05:41:06,821 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 26 [2021-11-19 05:41:06,868 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:41:06,868 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 05:41:07,189 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:41:07,190 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 05:41:07,190 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2114208678] [2021-11-19 05:41:07,190 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2114208678] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 05:41:07,190 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-19 05:41:07,191 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 7 [2021-11-19 05:41:07,191 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293161751] [2021-11-19 05:41:07,191 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-19 05:41:07,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 05:41:07,192 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 05:41:07,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 05:41:07,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-19 05:41:07,202 INFO L87 Difference]: Start difference. First operand 63 states and 80 transitions. Second operand has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-19 05:41:07,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:41:07,438 INFO L93 Difference]: Finished difference Result 87 states and 106 transitions. [2021-11-19 05:41:07,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 05:41:07,439 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 23 [2021-11-19 05:41:07,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:41:07,441 INFO L225 Difference]: With dead ends: 87 [2021-11-19 05:41:07,441 INFO L226 Difference]: Without dead ends: 87 [2021-11-19 05:41:07,441 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 33 SyntacticMatches, 6 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-11-19 05:41:07,442 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 23 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 58 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 05:41:07,443 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 190 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 80 Invalid, 0 Unknown, 58 Unchecked, 0.2s Time] [2021-11-19 05:41:07,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2021-11-19 05:41:07,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 81. [2021-11-19 05:41:07,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 56 states have (on average 1.5) internal successors, (84), 66 states have internal predecessors, (84), 8 states have call successors, (8), 5 states have call predecessors, (8), 6 states have return successors, (12), 9 states have call predecessors, (12), 7 states have call successors, (12) [2021-11-19 05:41:07,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 104 transitions. [2021-11-19 05:41:07,472 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 104 transitions. Word has length 23 [2021-11-19 05:41:07,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:41:07,472 INFO L470 AbstractCegarLoop]: Abstraction has 81 states and 104 transitions. [2021-11-19 05:41:07,473 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-19 05:41:07,473 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 104 transitions. [2021-11-19 05:41:07,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-19 05:41:07,475 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:41:07,475 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 05:41:07,493 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 05:41:07,689 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 05:41:07,689 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting entry_pointErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-11-19 05:41:07,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:41:07,689 INFO L85 PathProgramCache]: Analyzing trace with hash -529470854, now seen corresponding path program 1 times [2021-11-19 05:41:07,690 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 05:41:07,690 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [288654657] [2021-11-19 05:41:07,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:41:07,690 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 05:41:07,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 05:41:07,691 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 05:41:07,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 05:41:07,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:41:07,880 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-19 05:41:07,882 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:41:07,944 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 [2021-11-19 05:41:07,953 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 [2021-11-19 05:41:10,374 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-19 05:41:10,375 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2021-11-19 05:41:10,392 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-19 05:41:10,392 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 26 [2021-11-19 05:41:10,488 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:41:10,488 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 05:41:29,877 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 28 [2021-11-19 05:41:30,506 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 25 [2021-11-19 05:41:30,669 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:41:30,670 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 05:41:30,670 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [288654657] [2021-11-19 05:41:30,670 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [288654657] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 05:41:30,670 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-19 05:41:30,670 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2021-11-19 05:41:30,671 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429345405] [2021-11-19 05:41:30,671 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-19 05:41:30,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-19 05:41:30,672 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 05:41:30,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-19 05:41:30,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=257, Unknown=6, NotChecked=0, Total=306 [2021-11-19 05:41:30,673 INFO L87 Difference]: Start difference. First operand 81 states and 104 transitions. Second operand has 18 states, 15 states have (on average 1.8666666666666667) internal successors, (28), 16 states have internal predecessors, (28), 5 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-19 05:41:38,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:41:38,312 INFO L93 Difference]: Finished difference Result 191 states and 231 transitions. [2021-11-19 05:41:38,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-19 05:41:38,313 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 15 states have (on average 1.8666666666666667) internal successors, (28), 16 states have internal predecessors, (28), 5 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 23 [2021-11-19 05:41:38,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:41:38,316 INFO L225 Difference]: With dead ends: 191 [2021-11-19 05:41:38,316 INFO L226 Difference]: Without dead ends: 191 [2021-11-19 05:41:38,316 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 21.3s TimeCoverageRelationStatistics Valid=69, Invalid=387, Unknown=6, NotChecked=0, Total=462 [2021-11-19 05:41:38,317 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 128 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 756 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 316 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-11-19 05:41:38,318 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 622 Invalid, 756 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 416 Invalid, 0 Unknown, 316 Unchecked, 1.2s Time] [2021-11-19 05:41:38,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2021-11-19 05:41:38,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 98. [2021-11-19 05:41:38,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 72 states have (on average 1.5) internal successors, (108), 82 states have internal predecessors, (108), 9 states have call successors, (9), 5 states have call predecessors, (9), 6 states have return successors, (14), 10 states have call predecessors, (14), 8 states have call successors, (14) [2021-11-19 05:41:38,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 131 transitions. [2021-11-19 05:41:38,335 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 131 transitions. Word has length 23 [2021-11-19 05:41:38,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:41:38,336 INFO L470 AbstractCegarLoop]: Abstraction has 98 states and 131 transitions. [2021-11-19 05:41:38,336 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 15 states have (on average 1.8666666666666667) internal successors, (28), 16 states have internal predecessors, (28), 5 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-19 05:41:38,336 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 131 transitions. [2021-11-19 05:41:38,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-19 05:41:38,338 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:41:38,338 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 05:41:38,352 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 05:41:38,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 05:41:38,553 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting entry_pointErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-11-19 05:41:38,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:41:38,554 INFO L85 PathProgramCache]: Analyzing trace with hash -1035029480, now seen corresponding path program 1 times [2021-11-19 05:41:38,554 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 05:41:38,554 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1747791941] [2021-11-19 05:41:38,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:41:38,555 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 05:41:38,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 05:41:38,561 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 05:41:38,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 05:41:38,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:41:38,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-19 05:41:38,719 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:41:38,830 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:41:38,830 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 05:41:38,943 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-19 05:41:38,943 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 05:41:38,943 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1747791941] [2021-11-19 05:41:38,943 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1747791941] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 05:41:38,943 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 05:41:38,944 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2021-11-19 05:41:38,944 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740171410] [2021-11-19 05:41:38,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:41:38,944 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 05:41:38,945 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 05:41:38,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 05:41:38,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-19 05:41:38,945 INFO L87 Difference]: Start difference. First operand 98 states and 131 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-19 05:41:39,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:41:39,012 INFO L93 Difference]: Finished difference Result 80 states and 101 transitions. [2021-11-19 05:41:39,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 05:41:39,013 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 23 [2021-11-19 05:41:39,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:41:39,015 INFO L225 Difference]: With dead ends: 80 [2021-11-19 05:41:39,015 INFO L226 Difference]: Without dead ends: 76 [2021-11-19 05:41:39,015 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-19 05:41:39,016 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 0 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 05:41:39,017 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 182 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 05:41:39,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2021-11-19 05:41:39,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2021-11-19 05:41:39,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 54 states have (on average 1.5) internal successors, (81), 64 states have internal predecessors, (81), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (9), 6 states have call predecessors, (9), 6 states have call successors, (9) [2021-11-19 05:41:39,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 97 transitions. [2021-11-19 05:41:39,043 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 97 transitions. Word has length 23 [2021-11-19 05:41:39,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:41:39,044 INFO L470 AbstractCegarLoop]: Abstraction has 76 states and 97 transitions. [2021-11-19 05:41:39,044 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-19 05:41:39,044 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 97 transitions. [2021-11-19 05:41:39,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-19 05:41:39,045 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:41:39,045 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 05:41:39,058 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-19 05:41:39,249 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 05:41:39,250 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting entry_pointErr3REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-11-19 05:41:39,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:41:39,250 INFO L85 PathProgramCache]: Analyzing trace with hash -2015391035, now seen corresponding path program 1 times [2021-11-19 05:41:39,250 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 05:41:39,250 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1901822396] [2021-11-19 05:41:39,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:41:39,251 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 05:41:39,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 05:41:39,252 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 05:41:39,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-19 05:41:39,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:41:39,393 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 05:41:39,395 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:41:39,477 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-19 05:41:39,477 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 05:41:39,568 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-19 05:41:39,568 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 05:41:39,569 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1901822396] [2021-11-19 05:41:39,569 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1901822396] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 05:41:39,569 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:41:39,569 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-19 05:41:39,569 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527410329] [2021-11-19 05:41:39,569 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 05:41:39,570 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 05:41:39,570 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 05:41:39,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 05:41:39,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-19 05:41:39,571 INFO L87 Difference]: Start difference. First operand 76 states and 97 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-19 05:41:39,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:41:39,635 INFO L93 Difference]: Finished difference Result 94 states and 120 transitions. [2021-11-19 05:41:39,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 05:41:39,636 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 25 [2021-11-19 05:41:39,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:41:39,637 INFO L225 Difference]: With dead ends: 94 [2021-11-19 05:41:39,637 INFO L226 Difference]: Without dead ends: 94 [2021-11-19 05:41:39,638 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-19 05:41:39,639 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 7 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 05:41:39,639 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 189 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 05:41:39,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2021-11-19 05:41:39,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 80. [2021-11-19 05:41:39,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 58 states have (on average 1.4655172413793103) internal successors, (85), 66 states have internal predecessors, (85), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (9), 8 states have call predecessors, (9), 6 states have call successors, (9) [2021-11-19 05:41:39,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 101 transitions. [2021-11-19 05:41:39,660 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 101 transitions. Word has length 25 [2021-11-19 05:41:39,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:41:39,660 INFO L470 AbstractCegarLoop]: Abstraction has 80 states and 101 transitions. [2021-11-19 05:41:39,661 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-19 05:41:39,661 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 101 transitions. [2021-11-19 05:41:39,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-19 05:41:39,669 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:41:39,669 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 05:41:39,680 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-19 05:41:39,870 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 05:41:39,870 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting entry_pointErr3REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-11-19 05:41:39,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:41:39,871 INFO L85 PathProgramCache]: Analyzing trace with hash -272580700, now seen corresponding path program 1 times [2021-11-19 05:41:39,871 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 05:41:39,872 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1601202983] [2021-11-19 05:41:39,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:41:39,873 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 05:41:39,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 05:41:39,874 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 05:41:39,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-19 05:41:40,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:41:40,076 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 05:41:40,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:41:40,150 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-19 05:41:40,151 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 05:41:40,261 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-19 05:41:40,262 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 05:41:40,262 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1601202983] [2021-11-19 05:41:40,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1601202983] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 05:41:40,262 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:41:40,263 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-19 05:41:40,263 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446961740] [2021-11-19 05:41:40,263 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 05:41:40,263 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 05:41:40,264 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 05:41:40,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 05:41:40,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-19 05:41:40,265 INFO L87 Difference]: Start difference. First operand 80 states and 101 transitions. Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-11-19 05:41:40,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:41:40,341 INFO L93 Difference]: Finished difference Result 79 states and 92 transitions. [2021-11-19 05:41:40,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 05:41:40,342 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 25 [2021-11-19 05:41:40,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:41:40,343 INFO L225 Difference]: With dead ends: 79 [2021-11-19 05:41:40,343 INFO L226 Difference]: Without dead ends: 79 [2021-11-19 05:41:40,343 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-19 05:41:40,344 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 31 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 05:41:40,345 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 154 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 05:41:40,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2021-11-19 05:41:40,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 72. [2021-11-19 05:41:40,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 50 states have (on average 1.38) internal successors, (69), 58 states have internal predecessors, (69), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (9), 8 states have call predecessors, (9), 6 states have call successors, (9) [2021-11-19 05:41:40,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 85 transitions. [2021-11-19 05:41:40,353 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 85 transitions. Word has length 25 [2021-11-19 05:41:40,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:41:40,353 INFO L470 AbstractCegarLoop]: Abstraction has 72 states and 85 transitions. [2021-11-19 05:41:40,353 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-11-19 05:41:40,354 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 85 transitions. [2021-11-19 05:41:40,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-19 05:41:40,355 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:41:40,355 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 05:41:40,385 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-11-19 05:41:40,590 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 05:41:40,590 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting entry_pointErr8ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-11-19 05:41:40,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:41:40,591 INFO L85 PathProgramCache]: Analyzing trace with hash 139931782, now seen corresponding path program 1 times [2021-11-19 05:41:40,591 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 05:41:40,592 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [984629543] [2021-11-19 05:41:40,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:41:40,592 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 05:41:40,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 05:41:40,593 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 05:41:40,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-19 05:41:40,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:41:40,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 05:41:40,740 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:41:41,083 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:41:41,083 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 05:41:41,269 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-19 05:41:41,270 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 05:41:41,270 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [984629543] [2021-11-19 05:41:41,270 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [984629543] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 05:41:41,270 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-19 05:41:41,270 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4] total 9 [2021-11-19 05:41:41,270 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382272603] [2021-11-19 05:41:41,270 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-19 05:41:41,271 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-19 05:41:41,271 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 05:41:41,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-19 05:41:41,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-11-19 05:41:41,272 INFO L87 Difference]: Start difference. First operand 72 states and 85 transitions. Second operand has 10 states, 9 states have (on average 3.888888888888889) internal successors, (35), 8 states have internal predecessors, (35), 4 states have call successors, (9), 3 states have call predecessors, (9), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2021-11-19 05:41:41,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:41:41,472 INFO L93 Difference]: Finished difference Result 71 states and 83 transitions. [2021-11-19 05:41:41,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 05:41:41,473 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.888888888888889) internal successors, (35), 8 states have internal predecessors, (35), 4 states have call successors, (9), 3 states have call predecessors, (9), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) Word has length 26 [2021-11-19 05:41:41,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:41:41,474 INFO L225 Difference]: With dead ends: 71 [2021-11-19 05:41:41,474 INFO L226 Difference]: Without dead ends: 71 [2021-11-19 05:41:41,475 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-11-19 05:41:41,476 INFO L933 BasicCegarLoop]: 33 mSDtfsCounter, 61 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 13 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 05:41:41,476 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 99 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 74 Invalid, 0 Unknown, 13 Unchecked, 0.2s Time] [2021-11-19 05:41:41,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2021-11-19 05:41:41,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2021-11-19 05:41:41,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 50 states have (on average 1.34) internal successors, (67), 57 states have internal predecessors, (67), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (9), 8 states have call predecessors, (9), 6 states have call successors, (9) [2021-11-19 05:41:41,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 83 transitions. [2021-11-19 05:41:41,483 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 83 transitions. Word has length 26 [2021-11-19 05:41:41,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:41:41,484 INFO L470 AbstractCegarLoop]: Abstraction has 71 states and 83 transitions. [2021-11-19 05:41:41,484 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.888888888888889) internal successors, (35), 8 states have internal predecessors, (35), 4 states have call successors, (9), 3 states have call predecessors, (9), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2021-11-19 05:41:41,484 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 83 transitions. [2021-11-19 05:41:41,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-19 05:41:41,485 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:41:41,485 INFO L514 BasicCegarLoop]: trace histogram [2, 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] [2021-11-19 05:41:41,496 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-19 05:41:41,690 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 05:41:41,690 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-11-19 05:41:41,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:41:41,691 INFO L85 PathProgramCache]: Analyzing trace with hash -1318116199, now seen corresponding path program 1 times [2021-11-19 05:41:41,691 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 05:41:41,691 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1520391791] [2021-11-19 05:41:41,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:41:41,691 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 05:41:41,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 05:41:41,693 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 05:41:41,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-19 05:41:41,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:41:41,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-19 05:41:41,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:41:41,837 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 [2021-11-19 05:41:46,222 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-19 05:41:46,222 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 05:41:56,993 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 05:41:56,993 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1520391791] [2021-11-19 05:41:56,994 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(= (store |v_old(#valid)_BEFORE_CALL_9| v_entry_point_~array~0.base_33 (_ bv0 1)) v_prenex_3)=(= (select (store |v_old(#valid)_BEFORE_CALL_9| v_entry_point_~array~0.base_33 (_ bv0 1)) v_antiDerIndex_entry0_1) (select v_prenex_3 v_antiDerIndex_entry0_1))} [2021-11-19 05:41:56,994 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [906925182] [2021-11-19 05:41:56,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:41:56,994 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 05:41:56,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/cvc4 [2021-11-19 05:41:56,996 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 05:41:56,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2021-11-19 05:41:57,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:41:57,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-19 05:41:57,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:41:57,271 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-19 05:41:57,487 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-19 05:41:57,487 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 05:42:12,456 INFO L354 Elim1Store]: treesize reduction 16, result has 78.1 percent of original size [2021-11-19 05:42:12,457 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 68 treesize of output 115 [2021-11-19 05:42:13,623 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 05:42:13,623 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 32 [2021-11-19 05:42:18,029 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_entry_point_#t~ret38.base_63| (_ BitVec 32)) (|v_old(#valid)_BEFORE_CALL_13| (Array (_ BitVec 32) (_ BitVec 1)))) (or (= |v_old(#valid)_BEFORE_CALL_13| (store |c_#valid| |v_entry_point_#t~ret38.base_63| (_ bv0 1))) (exists ((v_entry_point_~array~0.base_33 (_ BitVec 32))) (and (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_old(#valid)| v_entry_point_~array~0.base_33)))))))) (not (= |v_old(#valid)_BEFORE_CALL_13| (store |c_old(#valid)| v_entry_point_~array~0.base_33 (_ bv0 1)))))) (not (= (_ bv0 1) (bvneg (bvneg (select |c_#valid| |v_entry_point_#t~ret38.base_63|))))))) is different from false [2021-11-19 05:42:18,268 INFO L354 Elim1Store]: treesize reduction 15, result has 79.5 percent of original size [2021-11-19 05:42:18,269 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 75 treesize of output 123 [2021-11-19 05:42:19,611 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(not (= (store |old(#valid)| |v_entry_point_#t~ret38.base_63| (_ bv0 1)) v_prenex_11))=(not (= (select (store |old(#valid)| |v_entry_point_#t~ret38.base_63| (_ bv0 1)) v_antiDerIndex_entry0_5) (select v_prenex_11 v_antiDerIndex_entry0_5)))} [2021-11-19 05:42:19,612 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1751577368] [2021-11-19 05:42:19,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:42:19,612 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 05:42:19,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:42:19,614 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 05:42:19,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-19 05:42:19,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:42:19,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-19 05:42:19,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:42:19,983 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-19 05:42:19,983 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 05:42:30,367 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_19| (Array (_ BitVec 32) (_ BitVec 1)))) (or (= |v_old(#valid)_BEFORE_CALL_19| (store |c_#valid| c_entry_point_~array~0.base (_ bv0 1))) (exists ((v_entry_point_~array~0.base_33 (_ BitVec 32))) (and (not (= |v_old(#valid)_BEFORE_CALL_19| (store |c_old(#valid)| v_entry_point_~array~0.base_33 (_ bv0 1)))) (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_old(#valid)| v_entry_point_~array~0.base_33))))))))) is different from false [2021-11-19 05:42:30,792 INFO L354 Elim1Store]: treesize reduction 16, result has 78.1 percent of original size [2021-11-19 05:42:30,792 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 62 treesize of output 109 [2021-11-19 05:42:31,749 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 05:42:31,749 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 29 [2021-11-19 05:42:31,907 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_19| (Array (_ BitVec 32) (_ BitVec 1)))) (or (exists ((v_entry_point_~array~0.base_33 (_ BitVec 32))) (and (not (= |v_old(#valid)_BEFORE_CALL_19| (store |c_old(#valid)| v_entry_point_~array~0.base_33 (_ bv0 1)))) (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_old(#valid)| v_entry_point_~array~0.base_33))))))) (= (store |c_#valid| |c_entry_point_#t~ret38.base| (_ bv0 1)) |v_old(#valid)_BEFORE_CALL_19|))) is different from false [2021-11-19 05:42:32,402 INFO L354 Elim1Store]: treesize reduction 16, result has 78.1 percent of original size [2021-11-19 05:42:32,403 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 71 treesize of output 118 [2021-11-19 05:42:33,060 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(not (= (store |old(#valid)| |v_entry_point_#t~ret38.base_72| (_ bv0 1)) v_prenex_21))=(not (= (select (store |old(#valid)| |v_entry_point_#t~ret38.base_72| (_ bv0 1)) v_antiDerIndex_entry0_9) (select v_prenex_21 v_antiDerIndex_entry0_9)))} [2021-11-19 05:42:33,060 INFO L186 FreeRefinementEngine]: Found 0 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:42:33,060 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-11-19 05:42:33,060 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-11-19 05:42:33,060 INFO L628 BasicCegarLoop]: Counterexample might be feasible [2021-11-19 05:42:33,068 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK (80 of 81 remaining) [2021-11-19 05:42:33,070 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION (79 of 81 remaining) [2021-11-19 05:42:33,071 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION (78 of 81 remaining) [2021-11-19 05:42:33,071 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION (77 of 81 remaining) [2021-11-19 05:42:33,071 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION (76 of 81 remaining) [2021-11-19 05:42:33,072 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION (75 of 81 remaining) [2021-11-19 05:42:33,072 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION (74 of 81 remaining) [2021-11-19 05:42:33,072 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION (73 of 81 remaining) [2021-11-19 05:42:33,072 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION (72 of 81 remaining) [2021-11-19 05:42:33,073 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION (71 of 81 remaining) [2021-11-19 05:42:33,073 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION (70 of 81 remaining) [2021-11-19 05:42:33,073 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION (69 of 81 remaining) [2021-11-19 05:42:33,073 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION (68 of 81 remaining) [2021-11-19 05:42:33,073 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION (67 of 81 remaining) [2021-11-19 05:42:33,074 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION (66 of 81 remaining) [2021-11-19 05:42:33,074 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION (65 of 81 remaining) [2021-11-19 05:42:33,074 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION (64 of 81 remaining) [2021-11-19 05:42:33,074 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION (63 of 81 remaining) [2021-11-19 05:42:33,075 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION (62 of 81 remaining) [2021-11-19 05:42:33,075 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION (61 of 81 remaining) [2021-11-19 05:42:33,075 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION (60 of 81 remaining) [2021-11-19 05:42:33,075 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION (59 of 81 remaining) [2021-11-19 05:42:33,075 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION (58 of 81 remaining) [2021-11-19 05:42:33,076 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION (57 of 81 remaining) [2021-11-19 05:42:33,076 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION (56 of 81 remaining) [2021-11-19 05:42:33,076 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION (55 of 81 remaining) [2021-11-19 05:42:33,076 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION (54 of 81 remaining) [2021-11-19 05:42:33,077 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION (53 of 81 remaining) [2021-11-19 05:42:33,077 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION (52 of 81 remaining) [2021-11-19 05:42:33,077 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION (51 of 81 remaining) [2021-11-19 05:42:33,077 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION (50 of 81 remaining) [2021-11-19 05:42:33,077 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION (49 of 81 remaining) [2021-11-19 05:42:33,078 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION (48 of 81 remaining) [2021-11-19 05:42:33,078 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION (47 of 81 remaining) [2021-11-19 05:42:33,078 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION (46 of 81 remaining) [2021-11-19 05:42:33,078 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION (45 of 81 remaining) [2021-11-19 05:42:33,079 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION (44 of 81 remaining) [2021-11-19 05:42:33,079 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION (43 of 81 remaining) [2021-11-19 05:42:33,079 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION (42 of 81 remaining) [2021-11-19 05:42:33,079 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION (41 of 81 remaining) [2021-11-19 05:42:33,079 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION (40 of 81 remaining) [2021-11-19 05:42:33,080 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION (39 of 81 remaining) [2021-11-19 05:42:33,080 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION (38 of 81 remaining) [2021-11-19 05:42:33,080 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE (37 of 81 remaining) [2021-11-19 05:42:33,080 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE (36 of 81 remaining) [2021-11-19 05:42:33,081 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE (35 of 81 remaining) [2021-11-19 05:42:33,081 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE (34 of 81 remaining) [2021-11-19 05:42:33,081 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE (33 of 81 remaining) [2021-11-19 05:42:33,081 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE (32 of 81 remaining) [2021-11-19 05:42:33,082 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION (31 of 81 remaining) [2021-11-19 05:42:33,082 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION (30 of 81 remaining) [2021-11-19 05:42:33,082 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION (29 of 81 remaining) [2021-11-19 05:42:33,082 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION (28 of 81 remaining) [2021-11-19 05:42:33,082 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION (27 of 81 remaining) [2021-11-19 05:42:33,083 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION (26 of 81 remaining) [2021-11-19 05:42:33,083 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION (25 of 81 remaining) [2021-11-19 05:42:33,083 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION (24 of 81 remaining) [2021-11-19 05:42:33,083 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE (23 of 81 remaining) [2021-11-19 05:42:33,084 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE (22 of 81 remaining) [2021-11-19 05:42:33,084 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE (21 of 81 remaining) [2021-11-19 05:42:33,084 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE (20 of 81 remaining) [2021-11-19 05:42:33,084 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE (19 of 81 remaining) [2021-11-19 05:42:33,085 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE (18 of 81 remaining) [2021-11-19 05:42:33,085 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION (17 of 81 remaining) [2021-11-19 05:42:33,085 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION (16 of 81 remaining) [2021-11-19 05:42:33,085 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION (15 of 81 remaining) [2021-11-19 05:42:33,086 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION (14 of 81 remaining) [2021-11-19 05:42:33,086 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION (13 of 81 remaining) [2021-11-19 05:42:33,086 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION (12 of 81 remaining) [2021-11-19 05:42:33,086 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION (11 of 81 remaining) [2021-11-19 05:42:33,086 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION (10 of 81 remaining) [2021-11-19 05:42:33,087 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr0REQUIRES_VIOLATION (9 of 81 remaining) [2021-11-19 05:42:33,087 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr1REQUIRES_VIOLATION (8 of 81 remaining) [2021-11-19 05:42:33,087 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr2REQUIRES_VIOLATION (7 of 81 remaining) [2021-11-19 05:42:33,087 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr3REQUIRES_VIOLATION (6 of 81 remaining) [2021-11-19 05:42:33,088 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE (5 of 81 remaining) [2021-11-19 05:42:33,088 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE (4 of 81 remaining) [2021-11-19 05:42:33,088 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE (3 of 81 remaining) [2021-11-19 05:42:33,088 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr7ASSERT_VIOLATIONMEMORY_FREE (2 of 81 remaining) [2021-11-19 05:42:33,089 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr8ASSERT_VIOLATIONMEMORY_FREE (1 of 81 remaining) [2021-11-19 05:42:33,089 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr9ASSERT_VIOLATIONMEMORY_FREE (0 of 81 remaining) [2021-11-19 05:42:33,137 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-11-19 05:42:33,323 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-19 05:42:33,514 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/cvc4 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0 [2021-11-19 05:42:33,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/cvc4 --incremental --print-success --lang smt [2021-11-19 05:42:33,709 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 05:42:33,713 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-19 05:42:33,716 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-11-19 05:42:33,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 05:42:33 BoogieIcfgContainer [2021-11-19 05:42:33,728 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-19 05:42:33,729 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 05:42:33,729 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 05:42:33,729 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 05:42:33,730 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:41:03" (3/4) ... [2021-11-19 05:42:33,733 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-19 05:42:33,733 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 05:42:33,734 INFO L158 Benchmark]: Toolchain (without parser) took 93471.82ms. Allocated memory was 67.1MB in the beginning and 134.2MB in the end (delta: 67.1MB). Free memory was 46.3MB in the beginning and 79.9MB in the end (delta: -33.5MB). Peak memory consumption was 33.0MB. Max. memory is 16.1GB. [2021-11-19 05:42:33,734 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 67.1MB. Free memory was 49.3MB in the beginning and 49.2MB in the end (delta: 84.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 05:42:33,735 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1099.92ms. Allocated memory was 67.1MB in the beginning and 100.7MB in the end (delta: 33.6MB). Free memory was 46.2MB in the beginning and 82.2MB in the end (delta: -36.0MB). Peak memory consumption was 16.7MB. Max. memory is 16.1GB. [2021-11-19 05:42:33,735 INFO L158 Benchmark]: Boogie Preprocessor took 137.36ms. Allocated memory is still 100.7MB. Free memory was 82.2MB in the beginning and 77.6MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-19 05:42:33,735 INFO L158 Benchmark]: RCFGBuilder took 2008.49ms. Allocated memory is still 100.7MB. Free memory was 77.2MB in the beginning and 54.6MB in the end (delta: 22.6MB). Peak memory consumption was 25.4MB. Max. memory is 16.1GB. [2021-11-19 05:42:33,736 INFO L158 Benchmark]: TraceAbstraction took 90214.84ms. Allocated memory was 100.7MB in the beginning and 134.2MB in the end (delta: 33.6MB). Free memory was 54.1MB in the beginning and 79.9MB in the end (delta: -25.8MB). Peak memory consumption was 58.3MB. Max. memory is 16.1GB. [2021-11-19 05:42:33,737 INFO L158 Benchmark]: Witness Printer took 4.49ms. Allocated memory is still 134.2MB. Free memory is still 79.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 05:42:33,739 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 67.1MB. Free memory was 49.3MB in the beginning and 49.2MB in the end (delta: 84.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1099.92ms. Allocated memory was 67.1MB in the beginning and 100.7MB in the end (delta: 33.6MB). Free memory was 46.2MB in the beginning and 82.2MB in the end (delta: -36.0MB). Peak memory consumption was 16.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 137.36ms. Allocated memory is still 100.7MB. Free memory was 82.2MB in the beginning and 77.6MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 2008.49ms. Allocated memory is still 100.7MB. Free memory was 77.2MB in the beginning and 54.6MB in the end (delta: 22.6MB). Peak memory consumption was 25.4MB. Max. memory is 16.1GB. * TraceAbstraction took 90214.84ms. Allocated memory was 100.7MB in the beginning and 134.2MB in the end (delta: 33.6MB). Free memory was 54.1MB in the beginning and 79.9MB in the end (delta: -25.8MB). Peak memory consumption was 58.3MB. Max. memory is 16.1GB. * Witness Printer took 4.49ms. Allocated memory is still 134.2MB. Free memory is still 79.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 780]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: unable to decide satisfiability of path constraint, overapproximation of memtrack at line 780. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L781] CALL entry_point() [L761] int len = 10; [L762] CALL, EXPR ldv_malloc(sizeof(struct A18*)*len) [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L762] RET, EXPR ldv_malloc(sizeof(struct A18*)*len) [L762] struct A18 **array = (struct A18 **)ldv_malloc(sizeof(struct A18*)*len); [L763] struct A18 *p; [L764] int i=0; [L765] int j; [L766] COND FALSE !(!array) [L767] COND TRUE i=0) [L777] free(array) [L777] free(array) [L777] free(array) [L781] RET entry_point() - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 770]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 770]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 775]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 775]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 775]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 775]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 775]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 777]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 777]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 777]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 47 procedures, 357 locations, 81 error locations. Started 1 CEGAR loops. OverallTime: 90.1s, OverallIterations: 10, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 8.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 483 SdHoareTripleChecker+Valid, 2.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 476 mSDsluCounter, 1796 SdHoareTripleChecker+Invalid, 1.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 387 IncrementalHoareTripleChecker+Unchecked, 1364 mSDsCounter, 48 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 732 IncrementalHoareTripleChecker+Invalid, 1167 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 48 mSolverCounterUnsat, 432 mSDtfsCounter, 732 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 393 GetRequests, 330 SyntacticMatches, 7 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 21.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=117occurred in iteration=0, InterpolantAutomatonStates: 55, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 195 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 40.4s InterpolantComputationTime, 227 NumberOfCodeBlocks, 227 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 405 ConstructedInterpolants, 30 QuantifiedInterpolants, 2155 SizeOfPredicates, 14 NumberOfNonLiveVariables, 928 ConjunctsInSsa, 73 ConjunctsInUnsatCore, 19 InterpolantComputations, 11 PerfectInterpolantSequences, 34/52 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-19 05:42:33,794 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3def6ea6-c624-4f3a-a73b-1be609b090fd/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN