./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test4-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d58341-3041-454f-bf3f-bc9c0de1b1a6/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d58341-3041-454f-bf3f-bc9c0de1b1a6/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d58341-3041-454f-bf3f-bc9c0de1b1a6/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d58341-3041-454f-bf3f-bc9c0de1b1a6/bin/uautomizer-WNIpwEf4Nt/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test4-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d58341-3041-454f-bf3f-bc9c0de1b1a6/bin/uautomizer-WNIpwEf4Nt/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d58341-3041-454f-bf3f-bc9c0de1b1a6/bin/uautomizer-WNIpwEf4Nt --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash eb6bcc62184a60bbcb9e0528a455aeb84b21f101 ................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d58341-3041-454f-bf3f-bc9c0de1b1a6/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d58341-3041-454f-bf3f-bc9c0de1b1a6/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d58341-3041-454f-bf3f-bc9c0de1b1a6/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d58341-3041-454f-bf3f-bc9c0de1b1a6/bin/uautomizer-WNIpwEf4Nt/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test4-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d58341-3041-454f-bf3f-bc9c0de1b1a6/bin/uautomizer-WNIpwEf4Nt/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d58341-3041-454f-bf3f-bc9c0de1b1a6/bin/uautomizer-WNIpwEf4Nt --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash eb6bcc62184a60bbcb9e0528a455aeb84b21f101 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 00:55:29,321 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:55:29,325 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:55:29,430 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:55:29,431 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:55:29,433 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:55:29,435 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:55:29,438 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:55:29,441 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:55:29,442 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:55:29,444 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:55:29,446 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:55:29,447 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:55:29,448 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:55:29,451 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:55:29,453 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:55:29,454 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:55:29,456 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:55:29,459 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:55:29,462 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:55:29,465 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:55:29,467 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:55:29,469 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:55:29,470 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:55:29,476 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:55:29,476 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:55:29,477 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:55:29,479 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:55:29,479 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:55:29,481 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:55:29,482 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:55:29,483 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:55:29,485 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:55:29,486 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:55:29,488 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:55:29,489 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:55:29,490 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:55:29,491 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:55:29,491 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:55:29,493 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:55:29,494 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:55:29,495 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d58341-3041-454f-bf3f-bc9c0de1b1a6/bin/uautomizer-WNIpwEf4Nt/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-10-13 00:55:29,527 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:55:29,527 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:55:29,528 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:55:29,528 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:55:29,530 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:55:29,530 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:55:29,531 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:55:29,531 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:55:29,531 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:55:29,532 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 00:55:29,532 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:55:29,533 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:55:29,533 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:55:29,533 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-13 00:55:29,534 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-13 00:55:29,534 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-13 00:55:29,534 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 00:55:29,535 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 00:55:29,535 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:55:29,535 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:55:29,536 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:55:29,536 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:55:29,537 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 00:55:29,537 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:55:29,537 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:55:29,538 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 00:55:29,538 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:55:29,538 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 00:55:29,539 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:55:29,539 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_32d58341-3041-454f-bf3f-bc9c0de1b1a6/bin/uautomizer-WNIpwEf4Nt/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d58341-3041-454f-bf3f-bc9c0de1b1a6/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eb6bcc62184a60bbcb9e0528a455aeb84b21f101 [2021-10-13 00:55:29,840 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:55:29,869 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:55:29,872 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:55:29,874 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:55:29,875 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:55:29,876 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d58341-3041-454f-bf3f-bc9c0de1b1a6/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/ldv-memsafety/memleaks_test4-1.i [2021-10-13 00:55:29,959 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d58341-3041-454f-bf3f-bc9c0de1b1a6/bin/uautomizer-WNIpwEf4Nt/data/784453ad2/3d78a4799e094ed2a69ca2071c67318a/FLAG4d728448c [2021-10-13 00:55:30,667 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:55:30,668 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d58341-3041-454f-bf3f-bc9c0de1b1a6/sv-benchmarks/c/ldv-memsafety/memleaks_test4-1.i [2021-10-13 00:55:30,692 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d58341-3041-454f-bf3f-bc9c0de1b1a6/bin/uautomizer-WNIpwEf4Nt/data/784453ad2/3d78a4799e094ed2a69ca2071c67318a/FLAG4d728448c [2021-10-13 00:55:30,867 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d58341-3041-454f-bf3f-bc9c0de1b1a6/bin/uautomizer-WNIpwEf4Nt/data/784453ad2/3d78a4799e094ed2a69ca2071c67318a [2021-10-13 00:55:30,870 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:55:30,872 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-13 00:55:30,874 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:55:30,874 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:55:30,882 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:55:30,883 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:55:30" (1/1) ... [2021-10-13 00:55:30,885 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e17e4f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:55:30, skipping insertion in model container [2021-10-13 00:55:30,885 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:55:30" (1/1) ... [2021-10-13 00:55:30,894 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:55:30,946 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:55:31,587 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:55:31,617 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-10-13 00:55:31,618 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6dc2336b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:55:31, skipping insertion in model container [2021-10-13 00:55:31,618 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:55:31,620 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-10-13 00:55:31,624 INFO L168 Benchmark]: Toolchain (without parser) took 748.97 ms. Allocated memory was 100.7 MB in the beginning and 125.8 MB in the end (delta: 25.2 MB). Free memory was 74.2 MB in the beginning and 98.5 MB in the end (delta: -24.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 00:55:31,627 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 100.7 MB. Free memory is still 59.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:55:31,629 INFO L168 Benchmark]: CACSL2BoogieTranslator took 745.86 ms. Allocated memory was 100.7 MB in the beginning and 125.8 MB in the end (delta: 25.2 MB). Free memory was 74.0 MB in the beginning and 98.7 MB in the end (delta: -24.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 00:55:31,632 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 100.7 MB. Free memory is still 59.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 745.86 ms. Allocated memory was 100.7 MB in the beginning and 125.8 MB in the end (delta: 25.2 MB). Free memory was 74.0 MB in the beginning and 98.7 MB in the end (delta: -24.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 00:55:34,523 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:55:34,525 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:55:34,583 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:55:34,584 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:55:34,591 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:55:34,594 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:55:34,608 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:55:34,611 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:55:34,614 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:55:34,616 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:55:34,620 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:55:34,621 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:55:34,632 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:55:34,635 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:55:34,639 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:55:34,646 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:55:34,649 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:55:34,652 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:55:34,659 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:55:34,665 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:55:34,667 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:55:34,671 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:55:34,673 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:55:34,681 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:55:34,682 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:55:34,683 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:55:34,685 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:55:34,686 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:55:34,687 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:55:34,689 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:55:34,690 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:55:34,693 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:55:34,712 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:55:34,713 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:55:34,714 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:55:34,715 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:55:34,715 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:55:34,715 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:55:34,718 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:55:34,719 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:55:34,726 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d58341-3041-454f-bf3f-bc9c0de1b1a6/bin/uautomizer-WNIpwEf4Nt/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-13 00:55:34,794 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:55:34,794 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:55:34,795 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:55:34,795 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:55:34,798 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:55:34,798 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:55:34,799 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:55:34,799 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:55:34,799 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:55:34,799 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 00:55:34,801 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:55:34,801 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:55:34,802 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:55:34,802 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-13 00:55:34,802 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-13 00:55:34,802 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-13 00:55:34,803 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 00:55:34,803 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 00:55:34,803 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-13 00:55:34,803 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-13 00:55:34,804 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:55:34,804 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:55:34,804 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:55:34,805 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:55:34,805 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 00:55:34,805 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:55:34,806 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:55:34,806 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 00:55:34,806 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-13 00:55:34,806 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-13 00:55:34,807 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:55:34,807 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 00:55:34,808 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_32d58341-3041-454f-bf3f-bc9c0de1b1a6/bin/uautomizer-WNIpwEf4Nt/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d58341-3041-454f-bf3f-bc9c0de1b1a6/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eb6bcc62184a60bbcb9e0528a455aeb84b21f101 [2021-10-13 00:55:35,276 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:55:35,321 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:55:35,326 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:55:35,327 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:55:35,328 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:55:35,332 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d58341-3041-454f-bf3f-bc9c0de1b1a6/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/ldv-memsafety/memleaks_test4-1.i [2021-10-13 00:55:35,432 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d58341-3041-454f-bf3f-bc9c0de1b1a6/bin/uautomizer-WNIpwEf4Nt/data/ddf4da2ea/be87ca94c7fa4beea551884beb179187/FLAGc265da72d [2021-10-13 00:55:36,292 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:55:36,293 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d58341-3041-454f-bf3f-bc9c0de1b1a6/sv-benchmarks/c/ldv-memsafety/memleaks_test4-1.i [2021-10-13 00:55:36,315 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d58341-3041-454f-bf3f-bc9c0de1b1a6/bin/uautomizer-WNIpwEf4Nt/data/ddf4da2ea/be87ca94c7fa4beea551884beb179187/FLAGc265da72d [2021-10-13 00:55:36,518 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d58341-3041-454f-bf3f-bc9c0de1b1a6/bin/uautomizer-WNIpwEf4Nt/data/ddf4da2ea/be87ca94c7fa4beea551884beb179187 [2021-10-13 00:55:36,521 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:55:36,523 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-13 00:55:36,525 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:55:36,525 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:55:36,544 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:55:36,545 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:55:36" (1/1) ... [2021-10-13 00:55:36,547 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66076056 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:55:36, skipping insertion in model container [2021-10-13 00:55:36,548 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:55:36" (1/1) ... [2021-10-13 00:55:36,559 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:55:36,651 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:55:37,288 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:55:37,311 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-13 00:55:37,322 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:55:37,375 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:55:37,385 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:55:37,499 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:55:37,591 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:55:37,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:55:37 WrapperNode [2021-10-13 00:55:37,593 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:55:37,595 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:55:37,595 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:55:37,595 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:55:37,610 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:55:37" (1/1) ... [2021-10-13 00:55:37,610 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:55:37" (1/1) ... [2021-10-13 00:55:37,673 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:55:37" (1/1) ... [2021-10-13 00:55:37,680 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:55:37" (1/1) ... [2021-10-13 00:55:37,720 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:55:37" (1/1) ... [2021-10-13 00:55:37,727 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:55:37" (1/1) ... [2021-10-13 00:55:37,735 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:55:37" (1/1) ... [2021-10-13 00:55:37,755 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:55:37,770 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:55:37,770 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:55:37,770 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:55:37,771 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:55:37" (1/1) ... [2021-10-13 00:55:37,781 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:55:37,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d58341-3041-454f-bf3f-bc9c0de1b1a6/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:55:37,814 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d58341-3041-454f-bf3f-bc9c0de1b1a6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 00:55:37,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d58341-3041-454f-bf3f-bc9c0de1b1a6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 00:55:37,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-13 00:55:37,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:55:37,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-10-13 00:55:37,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-10-13 00:55:37,873 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-10-13 00:55:37,876 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-10-13 00:55:37,876 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-10-13 00:55:37,876 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-10-13 00:55:37,876 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-10-13 00:55:37,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-10-13 00:55:37,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-10-13 00:55:37,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-10-13 00:55:37,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-10-13 00:55:37,877 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-10-13 00:55:37,877 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-10-13 00:55:37,877 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-10-13 00:55:37,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-10-13 00:55:37,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-10-13 00:55:37,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-10-13 00:55:37,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-10-13 00:55:37,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-10-13 00:55:37,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-10-13 00:55:37,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-10-13 00:55:37,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-10-13 00:55:37,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-10-13 00:55:37,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-10-13 00:55:37,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-10-13 00:55:37,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-10-13 00:55:37,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-10-13 00:55:37,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-10-13 00:55:37,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-10-13 00:55:37,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-10-13 00:55:37,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-10-13 00:55:37,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-10-13 00:55:37,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-10-13 00:55:37,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-10-13 00:55:37,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-10-13 00:55:37,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-10-13 00:55:37,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-10-13 00:55:37,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-10-13 00:55:37,880 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-10-13 00:55:37,880 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-10-13 00:55:37,880 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-10-13 00:55:37,880 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-13 00:55:37,881 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-10-13 00:55:37,881 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-10-13 00:55:37,881 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-10-13 00:55:37,881 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-10-13 00:55:37,881 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-10-13 00:55:37,881 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-10-13 00:55:37,882 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-10-13 00:55:37,882 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-10-13 00:55:37,882 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-10-13 00:55:37,882 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-10-13 00:55:37,882 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-10-13 00:55:37,882 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-10-13 00:55:37,882 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-10-13 00:55:37,883 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-10-13 00:55:37,883 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-10-13 00:55:37,883 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-10-13 00:55:37,883 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-10-13 00:55:37,883 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-10-13 00:55:37,883 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-10-13 00:55:37,884 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-10-13 00:55:37,884 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-10-13 00:55:37,884 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-10-13 00:55:37,884 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-10-13 00:55:37,884 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-10-13 00:55:37,884 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-10-13 00:55:37,885 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-10-13 00:55:37,885 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-10-13 00:55:37,885 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-10-13 00:55:37,885 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-10-13 00:55:37,885 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-10-13 00:55:37,885 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-10-13 00:55:37,886 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-10-13 00:55:37,886 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-10-13 00:55:37,886 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-10-13 00:55:37,886 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-10-13 00:55:37,886 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-10-13 00:55:37,886 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-10-13 00:55:37,886 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-10-13 00:55:37,887 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-10-13 00:55:37,887 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-10-13 00:55:37,887 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-10-13 00:55:37,887 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-10-13 00:55:37,887 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-10-13 00:55:37,887 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-10-13 00:55:37,888 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-10-13 00:55:37,888 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-10-13 00:55:37,888 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-10-13 00:55:37,888 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-10-13 00:55:37,888 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-10-13 00:55:37,888 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-10-13 00:55:37,888 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-10-13 00:55:37,889 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-10-13 00:55:37,889 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-10-13 00:55:37,889 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-10-13 00:55:37,889 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-10-13 00:55:37,889 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-10-13 00:55:37,889 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-10-13 00:55:37,890 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-10-13 00:55:37,890 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-10-13 00:55:37,890 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-10-13 00:55:37,890 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-10-13 00:55:37,890 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-10-13 00:55:37,890 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-10-13 00:55:37,891 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-10-13 00:55:37,891 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-10-13 00:55:37,891 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-10-13 00:55:37,891 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-13 00:55:37,891 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-10-13 00:55:37,891 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-10-13 00:55:37,892 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-10-13 00:55:37,892 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-10-13 00:55:37,892 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-10-13 00:55:37,892 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-10-13 00:55:37,892 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-10-13 00:55:37,892 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-10-13 00:55:37,893 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-10-13 00:55:37,893 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-10-13 00:55:37,893 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-10-13 00:55:37,893 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-10-13 00:55:37,893 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-10-13 00:55:37,893 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-10-13 00:55:37,894 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-10-13 00:55:37,894 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-10-13 00:55:37,894 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-10-13 00:55:37,894 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-10-13 00:55:37,894 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-10-13 00:55:37,894 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-10-13 00:55:37,895 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-10-13 00:55:37,895 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-10-13 00:55:37,895 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-10-13 00:55:37,895 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-10-13 00:55:37,896 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-10-13 00:55:37,896 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-10-13 00:55:37,896 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-10-13 00:55:37,896 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-10-13 00:55:37,896 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-10-13 00:55:37,897 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-10-13 00:55:37,897 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-10-13 00:55:37,897 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-10-13 00:55:37,897 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-10-13 00:55:37,897 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-10-13 00:55:37,897 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-10-13 00:55:37,898 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-10-13 00:55:37,898 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-10-13 00:55:37,898 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-10-13 00:55:37,898 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-10-13 00:55:37,898 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-10-13 00:55:37,898 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-10-13 00:55:37,899 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-10-13 00:55:37,899 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-10-13 00:55:37,899 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-10-13 00:55:37,899 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-13 00:55:37,899 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-10-13 00:55:37,899 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-10-13 00:55:37,899 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-10-13 00:55:37,900 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-10-13 00:55:37,900 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-10-13 00:55:37,900 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-13 00:55:37,900 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-10-13 00:55:37,900 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-10-13 00:55:37,900 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-10-13 00:55:37,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-13 00:55:37,901 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-10-13 00:55:37,901 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-10-13 00:55:37,901 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-10-13 00:55:37,901 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-13 00:55:37,901 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-10-13 00:55:37,902 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-10-13 00:55:37,902 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-10-13 00:55:37,902 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-10-13 00:55:37,902 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-10-13 00:55:37,902 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-10-13 00:55:37,902 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 00:55:37,903 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-10-13 00:55:37,903 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-10-13 00:55:37,903 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-10-13 00:55:37,903 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-10-13 00:55:37,903 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-10-13 00:55:37,903 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-13 00:55:37,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-13 00:55:37,904 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-10-13 00:55:37,904 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-10-13 00:55:37,904 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-10-13 00:55:37,904 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-10-13 00:55:37,904 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-10-13 00:55:37,905 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-10-13 00:55:37,905 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-10-13 00:55:37,905 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-10-13 00:55:37,905 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-10-13 00:55:37,905 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-10-13 00:55:37,905 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-10-13 00:55:37,905 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-10-13 00:55:37,906 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-10-13 00:55:37,906 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-10-13 00:55:37,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-10-13 00:55:37,906 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-10-13 00:55:37,906 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-10-13 00:55:37,906 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-10-13 00:55:37,907 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-13 00:55:37,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-13 00:55:37,907 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:55:37,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-13 00:55:37,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:55:37,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-10-13 00:55:37,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-10-13 00:55:37,908 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-10-13 00:55:37,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-10-13 00:55:37,908 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-10-13 00:55:38,717 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 00:55:39,128 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 00:55:39,480 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:55:39,481 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-10-13 00:55:39,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:55:39 BoogieIcfgContainer [2021-10-13 00:55:39,485 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:55:39,487 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 00:55:39,487 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 00:55:39,491 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 00:55:39,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:55:36" (1/3) ... [2021-10-13 00:55:39,493 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bc34eae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:55:39, skipping insertion in model container [2021-10-13 00:55:39,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:55:37" (2/3) ... [2021-10-13 00:55:39,494 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bc34eae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:55:39, skipping insertion in model container [2021-10-13 00:55:39,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:55:39" (3/3) ... [2021-10-13 00:55:39,496 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test4-1.i [2021-10-13 00:55:39,503 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 00:55:39,503 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 74 error locations. [2021-10-13 00:55:39,560 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 00:55:39,587 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 00:55:39,587 INFO L340 AbstractCegarLoop]: Starting to check reachability of 74 error locations. [2021-10-13 00:55:39,610 INFO L276 IsEmpty]: Start isEmpty. Operand has 98 states, 54 states have (on average 1.5185185185185186) internal successors, (82), 75 states have internal predecessors, (82), 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) [2021-10-13 00:55:39,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-13 00:55:39,622 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:55:39,623 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:55:39,625 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 70 more)] === [2021-10-13 00:55:39,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:55:39,645 INFO L82 PathProgramCache]: Analyzing trace with hash 927863930, now seen corresponding path program 1 times [2021-10-13 00:55:39,663 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:55:39,663 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [255988138] [2021-10-13 00:55:39,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:55:39,665 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:55:39,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d58341-3041-454f-bf3f-bc9c0de1b1a6/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:55:39,672 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d58341-3041-454f-bf3f-bc9c0de1b1a6/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:55:39,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d58341-3041-454f-bf3f-bc9c0de1b1a6/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-13 00:55:39,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:55:39,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 00:55:39,919 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:55:40,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:55:40,084 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:55:40,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:55:40,209 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:55:40,210 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [255988138] [2021-10-13 00:55:40,210 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [255988138] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:55:40,211 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:55:40,211 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-13 00:55:40,213 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996019533] [2021-10-13 00:55:40,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 00:55:40,220 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:55:40,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 00:55:40,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:55:40,241 INFO L87 Difference]: Start difference. First operand has 98 states, 54 states have (on average 1.5185185185185186) internal successors, (82), 75 states have internal predecessors, (82), 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 1.8) internal successors, (9), 4 states have internal predecessors, (9), 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) [2021-10-13 00:55:40,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:55:40,286 INFO L93 Difference]: Finished difference Result 42 states and 47 transitions. [2021-10-13 00:55:40,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 00:55:40,288 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 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 16 [2021-10-13 00:55:40,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:55:40,299 INFO L225 Difference]: With dead ends: 42 [2021-10-13 00:55:40,300 INFO L226 Difference]: Without dead ends: 39 [2021-10-13 00:55:40,301 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.3ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:55:40,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-10-13 00:55:40,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 29. [2021-10-13 00:55:40,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 16 states have (on average 1.3125) internal successors, (21), 19 states have internal predecessors, (21), 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) [2021-10-13 00:55:40,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2021-10-13 00:55:40,351 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 16 [2021-10-13 00:55:40,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:55:40,352 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2021-10-13 00:55:40,352 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 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) [2021-10-13 00:55:40,352 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2021-10-13 00:55:40,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-13 00:55:40,354 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:55:40,354 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:55:40,384 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d58341-3041-454f-bf3f-bc9c0de1b1a6/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-13 00:55:40,580 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d58341-3041-454f-bf3f-bc9c0de1b1a6/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:55:40,581 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 70 more)] === [2021-10-13 00:55:40,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:55:40,582 INFO L82 PathProgramCache]: Analyzing trace with hash -1624293031, now seen corresponding path program 1 times [2021-10-13 00:55:40,583 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:55:40,583 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1005299698] [2021-10-13 00:55:40,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:55:40,584 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:55:40,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d58341-3041-454f-bf3f-bc9c0de1b1a6/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:55:40,586 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d58341-3041-454f-bf3f-bc9c0de1b1a6/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:55:40,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d58341-3041-454f-bf3f-bc9c0de1b1a6/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-13 00:55:40,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:55:40,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-13 00:55:40,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:55:40,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:55:40,885 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:55:41,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:55:41,035 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:55:41,035 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1005299698] [2021-10-13 00:55:41,036 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1005299698] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:55:41,036 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:55:41,036 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-13 00:55:41,036 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903170799] [2021-10-13 00:55:41,047 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:55:41,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:55:41,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:55:41,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:55:41,053 INFO L87 Difference]: Start difference. First operand 29 states and 32 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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) [2021-10-13 00:55:41,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:55:41,112 INFO L93 Difference]: Finished difference Result 40 states and 44 transitions. [2021-10-13 00:55:41,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:55:41,113 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 16 [2021-10-13 00:55:41,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:55:41,115 INFO L225 Difference]: With dead ends: 40 [2021-10-13 00:55:41,116 INFO L226 Difference]: Without dead ends: 37 [2021-10-13 00:55:41,117 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:55:41,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-10-13 00:55:41,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 25. [2021-10-13 00:55:41,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 16 states have internal predecessors, (17), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-10-13 00:55:41,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2021-10-13 00:55:41,132 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 16 [2021-10-13 00:55:41,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:55:41,133 INFO L470 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2021-10-13 00:55:41,133 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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) [2021-10-13 00:55:41,134 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2021-10-13 00:55:41,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-13 00:55:41,135 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:55:41,135 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:55:41,169 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d58341-3041-454f-bf3f-bc9c0de1b1a6/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-13 00:55:41,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d58341-3041-454f-bf3f-bc9c0de1b1a6/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:55:41,370 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-13 00:55:41,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:55:41,371 INFO L82 PathProgramCache]: Analyzing trace with hash -1911181477, now seen corresponding path program 1 times [2021-10-13 00:55:41,371 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:55:41,372 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [186018709] [2021-10-13 00:55:41,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:55:41,372 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:55:41,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d58341-3041-454f-bf3f-bc9c0de1b1a6/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:55:41,374 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d58341-3041-454f-bf3f-bc9c0de1b1a6/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:55:41,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d58341-3041-454f-bf3f-bc9c0de1b1a6/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-13 00:55:41,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:55:41,636 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 00:55:41,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:55:41,730 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-13 00:55:41,730 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:55:41,840 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-13 00:55:41,840 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:55:41,841 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [186018709] [2021-10-13 00:55:41,842 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [186018709] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:55:41,842 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:55:41,842 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-13 00:55:41,842 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263186243] [2021-10-13 00:55:41,843 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 00:55:41,845 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:55:41,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 00:55:41,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:55:41,851 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2021-10-13 00:55:41,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:55:41,869 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2021-10-13 00:55:41,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 00:55:41,870 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 20 [2021-10-13 00:55:41,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:55:41,871 INFO L225 Difference]: With dead ends: 24 [2021-10-13 00:55:41,871 INFO L226 Difference]: Without dead ends: 24 [2021-10-13 00:55:41,871 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.2ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:55:41,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2021-10-13 00:55:41,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2021-10-13 00:55:41,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 15 states have internal predecessors, (16), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-10-13 00:55:41,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2021-10-13 00:55:41,876 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 20 [2021-10-13 00:55:41,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:55:41,876 INFO L470 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2021-10-13 00:55:41,877 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2021-10-13 00:55:41,877 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2021-10-13 00:55:41,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-13 00:55:41,878 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:55:41,878 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:55:41,891 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d58341-3041-454f-bf3f-bc9c0de1b1a6/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-10-13 00:55:42,088 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d58341-3041-454f-bf3f-bc9c0de1b1a6/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:55:42,088 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-13 00:55:42,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:55:42,089 INFO L82 PathProgramCache]: Analyzing trace with hash 882916751, now seen corresponding path program 1 times [2021-10-13 00:55:42,101 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:55:42,102 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1130259117] [2021-10-13 00:55:42,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:55:42,102 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:55:42,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d58341-3041-454f-bf3f-bc9c0de1b1a6/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:55:42,103 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d58341-3041-454f-bf3f-bc9c0de1b1a6/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:55:42,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d58341-3041-454f-bf3f-bc9c0de1b1a6/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-13 00:55:42,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:55:42,333 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 00:55:42,335 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:55:42,901 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:55:42,902 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:55:43,098 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-13 00:55:43,098 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:55:43,098 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1130259117] [2021-10-13 00:55:43,099 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1130259117] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:55:43,099 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:55:43,099 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 4] imperfect sequences [] total 9 [2021-10-13 00:55:43,099 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040165802] [2021-10-13 00:55:43,100 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-13 00:55:43,100 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:55:43,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-13 00:55:43,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-10-13 00:55:43,101 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand has 10 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 8 states have internal predecessors, (25), 3 states have call successors, (9), 3 states have call predecessors, (9), 5 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2021-10-13 00:55:43,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:55:43,306 INFO L93 Difference]: Finished difference Result 38 states and 42 transitions. [2021-10-13 00:55:43,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-13 00:55:43,308 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 8 states have internal predecessors, (25), 3 states have call successors, (9), 3 states have call predecessors, (9), 5 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) Word has length 21 [2021-10-13 00:55:43,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:55:43,309 INFO L225 Difference]: With dead ends: 38 [2021-10-13 00:55:43,309 INFO L226 Difference]: Without dead ends: 38 [2021-10-13 00:55:43,310 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 161.4ms TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-10-13 00:55:43,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-10-13 00:55:43,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 23. [2021-10-13 00:55:43,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-10-13 00:55:43,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2021-10-13 00:55:43,315 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 21 [2021-10-13 00:55:43,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:55:43,315 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2021-10-13 00:55:43,316 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 8 states have internal predecessors, (25), 3 states have call successors, (9), 3 states have call predecessors, (9), 5 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2021-10-13 00:55:43,316 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2021-10-13 00:55:43,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-13 00:55:43,317 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:55:43,318 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:55:43,336 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d58341-3041-454f-bf3f-bc9c0de1b1a6/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-13 00:55:43,528 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d58341-3041-454f-bf3f-bc9c0de1b1a6/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:55:43,529 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-13 00:55:43,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:55:43,529 INFO L82 PathProgramCache]: Analyzing trace with hash 1600615901, now seen corresponding path program 1 times [2021-10-13 00:55:43,530 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:55:43,530 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1133788361] [2021-10-13 00:55:43,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:55:43,530 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:55:43,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d58341-3041-454f-bf3f-bc9c0de1b1a6/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:55:43,532 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d58341-3041-454f-bf3f-bc9c0de1b1a6/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:55:43,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d58341-3041-454f-bf3f-bc9c0de1b1a6/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-13 00:55:43,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:55:43,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 00:55:43,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:55:43,888 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-13 00:55:43,938 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-13 00:55:43,938 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:55:44,080 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-13 00:55:44,081 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:55:44,081 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1133788361] [2021-10-13 00:55:44,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1133788361] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:55:44,081 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:55:44,082 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-13 00:55:44,082 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433902547] [2021-10-13 00:55:44,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 00:55:44,083 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:55:44,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 00:55:44,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:55:44,084 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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) [2021-10-13 00:55:44,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:55:44,144 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions. [2021-10-13 00:55:44,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 00:55:44,145 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 22 [2021-10-13 00:55:44,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:55:44,147 INFO L225 Difference]: With dead ends: 29 [2021-10-13 00:55:44,147 INFO L226 Difference]: Without dead ends: 29 [2021-10-13 00:55:44,148 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 25.2ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:55:44,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-10-13 00:55:44,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2021-10-13 00:55:44,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 19 states have internal predecessors, (20), 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) [2021-10-13 00:55:44,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2021-10-13 00:55:44,157 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 22 [2021-10-13 00:55:44,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:55:44,158 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2021-10-13 00:55:44,158 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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) [2021-10-13 00:55:44,158 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2021-10-13 00:55:44,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-13 00:55:44,161 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:55:44,161 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:55:44,176 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d58341-3041-454f-bf3f-bc9c0de1b1a6/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-13 00:55:44,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d58341-3041-454f-bf3f-bc9c0de1b1a6/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:55:44,375 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-13 00:55:44,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:55:44,376 INFO L82 PathProgramCache]: Analyzing trace with hash -1806847714, now seen corresponding path program 1 times [2021-10-13 00:55:44,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:55:44,376 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [94675008] [2021-10-13 00:55:44,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:55:44,377 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:55:44,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d58341-3041-454f-bf3f-bc9c0de1b1a6/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:55:44,377 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d58341-3041-454f-bf3f-bc9c0de1b1a6/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:55:44,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d58341-3041-454f-bf3f-bc9c0de1b1a6/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-13 00:55:44,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:55:44,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 00:55:44,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:55:44,742 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-13 00:55:44,743 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:55:44,838 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-13 00:55:44,838 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:55:44,839 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [94675008] [2021-10-13 00:55:44,840 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [94675008] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:55:44,840 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:55:44,840 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-13 00:55:44,840 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503839908] [2021-10-13 00:55:44,841 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 00:55:44,841 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:55:44,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 00:55:44,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:55:44,844 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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) [2021-10-13 00:55:44,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:55:44,869 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2021-10-13 00:55:44,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 00:55:44,870 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 22 [2021-10-13 00:55:44,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:55:44,872 INFO L225 Difference]: With dead ends: 30 [2021-10-13 00:55:44,873 INFO L226 Difference]: Without dead ends: 30 [2021-10-13 00:55:44,873 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.8ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:55:44,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-10-13 00:55:44,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 22. [2021-10-13 00:55:44,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 13 states have internal predecessors, (14), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-10-13 00:55:44,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2021-10-13 00:55:44,885 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 22 [2021-10-13 00:55:44,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:55:44,885 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2021-10-13 00:55:44,886 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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) [2021-10-13 00:55:44,886 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2021-10-13 00:55:44,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-13 00:55:44,887 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:55:44,887 INFO L512 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] [2021-10-13 00:55:44,905 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d58341-3041-454f-bf3f-bc9c0de1b1a6/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-13 00:55:45,104 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d58341-3041-454f-bf3f-bc9c0de1b1a6/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:55:45,105 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-13 00:55:45,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:55:45,105 INFO L82 PathProgramCache]: Analyzing trace with hash 1221784944, now seen corresponding path program 1 times [2021-10-13 00:55:45,108 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:55:45,108 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [194204118] [2021-10-13 00:55:45,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:55:45,108 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:55:45,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d58341-3041-454f-bf3f-bc9c0de1b1a6/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:55:45,109 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d58341-3041-454f-bf3f-bc9c0de1b1a6/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:55:45,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d58341-3041-454f-bf3f-bc9c0de1b1a6/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-13 00:55:45,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:55:45,390 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:55:45,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:55:45,496 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-10-13 00:55:45,496 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-13 00:55:45,498 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-10-13 00:55:45,500 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION [2021-10-13 00:55:45,501 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION [2021-10-13 00:55:45,501 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION [2021-10-13 00:55:45,501 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION [2021-10-13 00:55:45,501 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION [2021-10-13 00:55:45,502 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION [2021-10-13 00:55:45,502 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION [2021-10-13 00:55:45,502 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION [2021-10-13 00:55:45,502 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION [2021-10-13 00:55:45,503 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION [2021-10-13 00:55:45,503 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION [2021-10-13 00:55:45,503 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION [2021-10-13 00:55:45,503 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION [2021-10-13 00:55:45,504 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION [2021-10-13 00:55:45,504 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION [2021-10-13 00:55:45,504 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION [2021-10-13 00:55:45,504 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION [2021-10-13 00:55:45,505 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION [2021-10-13 00:55:45,505 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION [2021-10-13 00:55:45,505 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION [2021-10-13 00:55:45,505 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION [2021-10-13 00:55:45,506 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION [2021-10-13 00:55:45,506 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION [2021-10-13 00:55:45,506 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION [2021-10-13 00:55:45,506 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION [2021-10-13 00:55:45,507 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION [2021-10-13 00:55:45,507 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION [2021-10-13 00:55:45,507 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION [2021-10-13 00:55:45,507 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION [2021-10-13 00:55:45,508 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION [2021-10-13 00:55:45,508 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION [2021-10-13 00:55:45,508 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION [2021-10-13 00:55:45,508 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION [2021-10-13 00:55:45,508 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION [2021-10-13 00:55:45,509 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION [2021-10-13 00:55:45,509 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION [2021-10-13 00:55:45,509 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION [2021-10-13 00:55:45,509 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION [2021-10-13 00:55:45,510 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION [2021-10-13 00:55:45,510 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION [2021-10-13 00:55:45,510 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION [2021-10-13 00:55:45,510 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION [2021-10-13 00:55:45,511 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:55:45,511 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:55:45,511 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:55:45,512 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:55:45,512 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:55:45,512 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:55:45,512 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION [2021-10-13 00:55:45,513 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION [2021-10-13 00:55:45,513 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION [2021-10-13 00:55:45,513 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION [2021-10-13 00:55:45,513 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION [2021-10-13 00:55:45,514 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION [2021-10-13 00:55:45,514 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION [2021-10-13 00:55:45,514 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION [2021-10-13 00:55:45,514 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:55:45,515 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:55:45,515 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:55:45,515 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:55:45,515 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:55:45,516 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:55:45,516 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION [2021-10-13 00:55:45,516 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION [2021-10-13 00:55:45,516 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION [2021-10-13 00:55:45,517 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION [2021-10-13 00:55:45,517 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION [2021-10-13 00:55:45,517 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION [2021-10-13 00:55:45,517 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION [2021-10-13 00:55:45,518 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION [2021-10-13 00:55:45,518 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:55:45,518 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:55:45,518 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:55:45,552 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d58341-3041-454f-bf3f-bc9c0de1b1a6/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-10-13 00:55:45,736 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d58341-3041-454f-bf3f-bc9c0de1b1a6/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:55:45,749 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 00:55:45,761 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-10-13 00:55:45,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 12:55:45 BoogieIcfgContainer [2021-10-13 00:55:45,788 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 00:55:45,789 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:55:45,790 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:55:45,790 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:55:45,791 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:55:39" (3/4) ... [2021-10-13 00:55:45,796 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-13 00:55:45,796 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:55:45,799 INFO L168 Benchmark]: Toolchain (without parser) took 9274.40 ms. Allocated memory was 75.5 MB in the beginning and 130.0 MB in the end (delta: 54.5 MB). Free memory was 59.7 MB in the beginning and 98.0 MB in the end (delta: -38.3 MB). Peak memory consumption was 15.6 MB. Max. memory is 16.1 GB. [2021-10-13 00:55:45,799 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 75.5 MB. Free memory is still 56.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:55:45,800 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1068.73 ms. Allocated memory is still 75.5 MB. Free memory was 59.5 MB in the beginning and 56.3 MB in the end (delta: 3.2 MB). Peak memory consumption was 30.4 MB. Max. memory is 16.1 GB. [2021-10-13 00:55:45,801 INFO L168 Benchmark]: Boogie Preprocessor took 160.70 ms. Allocated memory is still 75.5 MB. Free memory was 56.3 MB in the beginning and 51.5 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 00:55:45,804 INFO L168 Benchmark]: RCFGBuilder took 1715.39 ms. Allocated memory is still 75.5 MB. Free memory was 51.5 MB in the beginning and 31.8 MB in the end (delta: 19.7 MB). Peak memory consumption was 25.6 MB. Max. memory is 16.1 GB. [2021-10-13 00:55:45,807 INFO L168 Benchmark]: TraceAbstraction took 6301.39 ms. Allocated memory was 75.5 MB in the beginning and 130.0 MB in the end (delta: 54.5 MB). Free memory was 31.0 MB in the beginning and 98.9 MB in the end (delta: -67.9 MB). Peak memory consumption was 26.3 MB. Max. memory is 16.1 GB. [2021-10-13 00:55:45,808 INFO L168 Benchmark]: Witness Printer took 7.00 ms. Allocated memory is still 130.0 MB. Free memory is still 98.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:55:45,810 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 75.5 MB. Free memory is still 56.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1068.73 ms. Allocated memory is still 75.5 MB. Free memory was 59.5 MB in the beginning and 56.3 MB in the end (delta: 3.2 MB). Peak memory consumption was 30.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 160.70 ms. Allocated memory is still 75.5 MB. Free memory was 56.3 MB in the beginning and 51.5 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1715.39 ms. Allocated memory is still 75.5 MB. Free memory was 51.5 MB in the beginning and 31.8 MB in the end (delta: 19.7 MB). Peak memory consumption was 25.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6301.39 ms. Allocated memory was 75.5 MB in the beginning and 130.0 MB in the end (delta: 54.5 MB). Free memory was 31.0 MB in the beginning and 98.9 MB in the end (delta: -67.9 MB). Peak memory consumption was 26.3 MB. Max. memory is 16.1 GB. * Witness Printer took 7.00 ms. Allocated memory is still 130.0 MB. Free memory is still 98.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 764]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 764. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; VAL [\old(ldv_global_msg_list)=null, \old(ldv_global_msg_list)=null, ldv_global_msg_list={-2147483648:0}] [L765] CALL entry_point() VAL [ldv_global_msg_list={-2147483648:0}] [L758] CALL, EXPR ldv_malloc(sizeof(int)) VAL [\old(size)=4, ldv_global_msg_list={-2147483648:0}] [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L758] RET, EXPR ldv_malloc(sizeof(int)) VAL [ldv_global_msg_list={-2147483648:0}, ldv_malloc(sizeof(int))={1:0}] [L758] int *p = (int *)ldv_malloc(sizeof(int)); [L759] COND TRUE \read(*p) VAL [ldv_global_msg_list={-2147483648:0}, p={1:0}] [L760] CALL, EXPR ldv_malloc(sizeof(int)) VAL [\old(size)=4, ldv_global_msg_list={-2147483648:0}] [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L760] RET, EXPR ldv_malloc(sizeof(int)) VAL [ldv_global_msg_list={-2147483648:0}, ldv_malloc(sizeof(int))={2:0}, p={1:0}] [L760] int *q = (int *)ldv_malloc(sizeof(int)); [L761] free(q) VAL [ldv_global_msg_list={-2147483648:0}, p={1:0}, q={2:0}] [L761] free(q) VAL [ldv_global_msg_list={-2147483648:0}, p={1:0}, q={2:0}] [L761] free(q) [L765] RET entry_point() VAL [ldv_global_msg_list={-2147483648:0}] - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 761]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 761]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 761]: 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, 338 locations, 74 error locations. Started 1 CEGAR loops. OverallTime: 6183.8ms, OverallIterations: 7, TraceHistogramMax: 2, EmptinessCheckTime: 24.6ms, AutomataDifference: 481.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 17.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 161 SDtfs, 64 SDslu, 321 SDs, 0 SdLazy, 134 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 273.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 228 GetRequests, 206 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 244.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=98occurred in iteration=0, InterpolantAutomatonStates: 33, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 76.2ms AutomataMinimizationTime, 6 MinimizatonAttempts, 45 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 72.0ms SsaConstructionTime, 239.5ms SatisfiabilityAnalysisTime, 2035.2ms InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 222 ConstructedInterpolants, 12 QuantifiedInterpolants, 542 SizeOfPredicates, 1 NumberOfNonLiveVariables, 455 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 32/32 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-13 00:55:45,892 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d58341-3041-454f-bf3f-bc9c0de1b1a6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...