./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test18.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test18.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y --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 98678a21a2b37b871d00192aacebe14c4ee9cc87b75400dd7a4adc0ccfa93151 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 18:44:09,261 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 18:44:09,265 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 18:44:09,327 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 18:44:09,327 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 18:44:09,332 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 18:44:09,334 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 18:44:09,338 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 18:44:09,341 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 18:44:09,347 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 18:44:09,348 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 18:44:09,350 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 18:44:09,350 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 18:44:09,353 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 18:44:09,355 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 18:44:09,361 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 18:44:09,364 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 18:44:09,365 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 18:44:09,368 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 18:44:09,379 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 18:44:09,381 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 18:44:09,383 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 18:44:09,387 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 18:44:09,388 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 18:44:09,397 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 18:44:09,398 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 18:44:09,398 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 18:44:09,400 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 18:44:09,401 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 18:44:09,403 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 18:44:09,403 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 18:44:09,405 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 18:44:09,407 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 18:44:09,408 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 18:44:09,410 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 18:44:09,411 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 18:44:09,412 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 18:44:09,412 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 18:44:09,412 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 18:44:09,413 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 18:44:09,414 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 18:44:09,415 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-11-13 18:44:09,461 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 18:44:09,462 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 18:44:09,462 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 18:44:09,463 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 18:44:09,464 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 18:44:09,464 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 18:44:09,465 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 18:44:09,466 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 18:44:09,466 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 18:44:09,466 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 18:44:09,467 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 18:44:09,468 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-13 18:44:09,468 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 18:44:09,468 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 18:44:09,468 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 18:44:09,468 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-13 18:44:09,469 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-13 18:44:09,469 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-13 18:44:09,469 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 18:44:09,469 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 18:44:09,470 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 18:44:09,470 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 18:44:09,470 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 18:44:09,470 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 18:44:09,471 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 18:44:09,471 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:44:09,471 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 18:44:09,472 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 18:44:09,472 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 18:44:09,472 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 18:44:09,472 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 18:44:09,473 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_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 98678a21a2b37b871d00192aacebe14c4ee9cc87b75400dd7a4adc0ccfa93151 [2021-11-13 18:44:09,734 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 18:44:09,756 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 18:44:09,759 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 18:44:09,761 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 18:44:09,761 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 18:44:09,763 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/ldv-memsafety/memleaks_test18.i [2021-11-13 18:44:09,855 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/data/b48ddde06/69a2a26ed16c4e45ab31d8452e85abdc/FLAG747fe76eb [2021-11-13 18:44:10,497 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 18:44:10,498 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/sv-benchmarks/c/ldv-memsafety/memleaks_test18.i [2021-11-13 18:44:10,517 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/data/b48ddde06/69a2a26ed16c4e45ab31d8452e85abdc/FLAG747fe76eb [2021-11-13 18:44:10,766 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/data/b48ddde06/69a2a26ed16c4e45ab31d8452e85abdc [2021-11-13 18:44:10,778 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 18:44:10,780 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-11-13 18:44:10,786 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 18:44:10,787 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 18:44:10,790 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 18:44:10,791 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:44:10" (1/1) ... [2021-11-13 18:44:10,792 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@657fb49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:44:10, skipping insertion in model container [2021-11-13 18:44:10,793 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:44:10" (1/1) ... [2021-11-13 18:44:10,802 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 18:44:10,855 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 18:44:11,390 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:44:11,414 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-13 18:44:11,415 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@123009b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:44:11, skipping insertion in model container [2021-11-13 18:44:11,415 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 18:44:11,416 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-11-13 18:44:11,419 INFO L158 Benchmark]: Toolchain (without parser) took 636.85ms. Allocated memory was 98.6MB in the beginning and 132.1MB in the end (delta: 33.6MB). Free memory was 63.1MB in the beginning and 100.6MB in the end (delta: -37.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-13 18:44:11,420 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 98.6MB. Free memory was 51.9MB in the beginning and 51.8MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 18:44:11,422 INFO L158 Benchmark]: CACSL2BoogieTranslator took 629.84ms. Allocated memory was 98.6MB in the beginning and 132.1MB in the end (delta: 33.6MB). Free memory was 62.8MB in the beginning and 100.6MB in the end (delta: -37.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-13 18:44:11,424 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 98.6MB. Free memory was 51.9MB in the beginning and 51.8MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 629.84ms. Allocated memory was 98.6MB in the beginning and 132.1MB in the end (delta: 33.6MB). Free memory was 62.8MB in the beginning and 100.6MB in the end (delta: -37.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test18.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y --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 98678a21a2b37b871d00192aacebe14c4ee9cc87b75400dd7a4adc0ccfa93151 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 18:44:13,659 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 18:44:13,661 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 18:44:13,696 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 18:44:13,697 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 18:44:13,699 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 18:44:13,701 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 18:44:13,704 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 18:44:13,706 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 18:44:13,708 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 18:44:13,709 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 18:44:13,711 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 18:44:13,711 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 18:44:13,713 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 18:44:13,715 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 18:44:13,716 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 18:44:13,718 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 18:44:13,719 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 18:44:13,721 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 18:44:13,724 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 18:44:13,726 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 18:44:13,728 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 18:44:13,729 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 18:44:13,730 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 18:44:13,734 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 18:44:13,744 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 18:44:13,745 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 18:44:13,746 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 18:44:13,747 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 18:44:13,749 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 18:44:13,749 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 18:44:13,750 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 18:44:13,751 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 18:44:13,752 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 18:44:13,755 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 18:44:13,755 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 18:44:13,757 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 18:44:13,757 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 18:44:13,758 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 18:44:13,760 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 18:44:13,760 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 18:44:13,761 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-11-13 18:44:13,788 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 18:44:13,788 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 18:44:13,788 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 18:44:13,789 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 18:44:13,789 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 18:44:13,790 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 18:44:13,790 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 18:44:13,791 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 18:44:13,791 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 18:44:13,791 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 18:44:13,791 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 18:44:13,791 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-13 18:44:13,792 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 18:44:13,792 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 18:44:13,792 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 18:44:13,792 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-13 18:44:13,792 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-13 18:44:13,792 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-13 18:44:13,793 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 18:44:13,793 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 18:44:13,793 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-13 18:44:13,793 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-13 18:44:13,793 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 18:44:13,794 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 18:44:13,794 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 18:44:13,794 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 18:44:13,794 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 18:44:13,794 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:44:13,795 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 18:44:13,795 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 18:44:13,795 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-13 18:44:13,795 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-13 18:44:13,795 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 18:44:13,796 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 18:44:13,796 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_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 98678a21a2b37b871d00192aacebe14c4ee9cc87b75400dd7a4adc0ccfa93151 [2021-11-13 18:44:14,165 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 18:44:14,211 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 18:44:14,215 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 18:44:14,217 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 18:44:14,218 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 18:44:14,220 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/ldv-memsafety/memleaks_test18.i [2021-11-13 18:44:14,301 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/data/8c3f70106/89eb0d5a8a5b463b916b74a11576cb35/FLAG901152c38 [2021-11-13 18:44:14,890 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 18:44:14,891 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/sv-benchmarks/c/ldv-memsafety/memleaks_test18.i [2021-11-13 18:44:14,921 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/data/8c3f70106/89eb0d5a8a5b463b916b74a11576cb35/FLAG901152c38 [2021-11-13 18:44:15,167 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/data/8c3f70106/89eb0d5a8a5b463b916b74a11576cb35 [2021-11-13 18:44:15,171 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 18:44:15,174 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-11-13 18:44:15,177 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 18:44:15,177 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 18:44:15,181 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 18:44:15,182 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:44:15" (1/1) ... [2021-11-13 18:44:15,184 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ca3f587 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:44:15, skipping insertion in model container [2021-11-13 18:44:15,184 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:44:15" (1/1) ... [2021-11-13 18:44:15,191 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 18:44:15,266 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 18:44:15,709 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:44:15,728 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-13 18:44:15,738 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 18:44:15,786 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:44:15,794 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 18:44:15,874 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:44:15,928 INFO L208 MainTranslator]: Completed translation [2021-11-13 18:44:15,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:44:15 WrapperNode [2021-11-13 18:44:15,929 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 18:44:15,930 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 18:44:15,931 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 18:44:15,931 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 18:44:15,943 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:44:15" (1/1) ... [2021-11-13 18:44:15,944 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:44:15" (1/1) ... [2021-11-13 18:44:15,998 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:44:15" (1/1) ... [2021-11-13 18:44:15,999 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:44:15" (1/1) ... [2021-11-13 18:44:16,042 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:44:15" (1/1) ... [2021-11-13 18:44:16,048 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:44:15" (1/1) ... [2021-11-13 18:44:16,067 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:44:15" (1/1) ... [2021-11-13 18:44:16,089 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 18:44:16,090 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 18:44:16,090 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 18:44:16,090 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 18:44:16,091 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:44:15" (1/1) ... [2021-11-13 18:44:16,113 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:44:16,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:44:16,142 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 18:44:16,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 18:44:16,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-11-13 18:44:16,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 18:44:16,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-13 18:44:16,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-11-13 18:44:16,182 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-11-13 18:44:16,182 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-11-13 18:44:16,182 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-11-13 18:44:16,182 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-11-13 18:44:16,183 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-11-13 18:44:16,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-11-13 18:44:16,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-11-13 18:44:16,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-13 18:44:16,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-13 18:44:16,183 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-11-13 18:44:16,184 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-11-13 18:44:16,184 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-11-13 18:44:16,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-11-13 18:44:16,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-11-13 18:44:16,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-11-13 18:44:16,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-11-13 18:44:16,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-11-13 18:44:16,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-11-13 18:44:16,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-11-13 18:44:16,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-11-13 18:44:16,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-11-13 18:44:16,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-13 18:44:16,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-11-13 18:44:16,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-11-13 18:44:16,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-11-13 18:44:16,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-11-13 18:44:16,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-11-13 18:44:16,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-11-13 18:44:16,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-11-13 18:44:16,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-11-13 18:44:16,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-11-13 18:44:16,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-11-13 18:44:16,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-11-13 18:44:16,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-11-13 18:44:16,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-11-13 18:44:16,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-11-13 18:44:16,188 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-11-13 18:44:16,188 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-11-13 18:44:16,188 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-11-13 18:44:16,189 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-11-13 18:44:16,189 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-13 18:44:16,189 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-13 18:44:16,189 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-13 18:44:16,189 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-11-13 18:44:16,189 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-11-13 18:44:16,190 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-11-13 18:44:16,190 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-11-13 18:44:16,190 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-11-13 18:44:16,190 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-11-13 18:44:16,190 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-11-13 18:44:16,190 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-11-13 18:44:16,191 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-11-13 18:44:16,191 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-11-13 18:44:16,191 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-11-13 18:44:16,191 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-11-13 18:44:16,191 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-11-13 18:44:16,191 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-11-13 18:44:16,192 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-11-13 18:44:16,192 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-11-13 18:44:16,192 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-11-13 18:44:16,192 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-11-13 18:44:16,192 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-11-13 18:44:16,192 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-11-13 18:44:16,193 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-11-13 18:44:16,193 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-11-13 18:44:16,193 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-11-13 18:44:16,193 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-11-13 18:44:16,193 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-11-13 18:44:16,194 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-11-13 18:44:16,194 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-11-13 18:44:16,194 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-11-13 18:44:16,194 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-11-13 18:44:16,194 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-11-13 18:44:16,194 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-11-13 18:44:16,195 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-11-13 18:44:16,195 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-11-13 18:44:16,195 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-11-13 18:44:16,195 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-11-13 18:44:16,195 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-11-13 18:44:16,195 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-11-13 18:44:16,196 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-11-13 18:44:16,196 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-11-13 18:44:16,196 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-11-13 18:44:16,196 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-11-13 18:44:16,196 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-11-13 18:44:16,197 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-11-13 18:44:16,197 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-11-13 18:44:16,197 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-11-13 18:44:16,197 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-11-13 18:44:16,197 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-11-13 18:44:16,197 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-11-13 18:44:16,198 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-11-13 18:44:16,198 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-11-13 18:44:16,198 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-11-13 18:44:16,198 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-11-13 18:44:16,198 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-11-13 18:44:16,198 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-11-13 18:44:16,199 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-11-13 18:44:16,199 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-11-13 18:44:16,199 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-11-13 18:44:16,199 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-11-13 18:44:16,199 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-11-13 18:44:16,199 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-11-13 18:44:16,200 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-11-13 18:44:16,200 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-11-13 18:44:16,200 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-11-13 18:44:16,200 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-11-13 18:44:16,200 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-11-13 18:44:16,200 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-11-13 18:44:16,201 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-11-13 18:44:16,201 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-11-13 18:44:16,201 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-11-13 18:44:16,201 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-11-13 18:44:16,201 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-11-13 18:44:16,202 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-11-13 18:44:16,202 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-11-13 18:44:16,202 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-11-13 18:44:16,202 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-11-13 18:44:16,202 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-11-13 18:44:16,202 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-11-13 18:44:16,203 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-11-13 18:44:16,203 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-11-13 18:44:16,203 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-11-13 18:44:16,203 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-11-13 18:44:16,203 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-11-13 18:44:16,204 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-11-13 18:44:16,204 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-11-13 18:44:16,204 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-11-13 18:44:16,204 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-11-13 18:44:16,204 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-11-13 18:44:16,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-11-13 18:44:16,205 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-11-13 18:44:16,205 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-11-13 18:44:16,205 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-11-13 18:44:16,205 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-11-13 18:44:16,205 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-11-13 18:44:16,205 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-11-13 18:44:16,206 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-11-13 18:44:16,206 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-11-13 18:44:16,206 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-11-13 18:44:16,206 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-11-13 18:44:16,206 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-11-13 18:44:16,206 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-11-13 18:44:16,207 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-11-13 18:44:16,207 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-11-13 18:44:16,207 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-11-13 18:44:16,207 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-11-13 18:44:16,207 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-11-13 18:44:16,207 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-11-13 18:44:16,208 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-11-13 18:44:16,208 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-13 18:44:16,208 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-11-13 18:44:16,208 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-11-13 18:44:16,208 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-11-13 18:44:16,208 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-11-13 18:44:16,209 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-11-13 18:44:16,209 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-13 18:44:16,209 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-13 18:44:16,209 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-13 18:44:16,209 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-13 18:44:16,209 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-11-13 18:44:16,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-13 18:44:16,210 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-11-13 18:44:16,210 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-11-13 18:44:16,210 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-11-13 18:44:16,210 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-13 18:44:16,210 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-11-13 18:44:16,211 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-11-13 18:44:16,211 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-11-13 18:44:16,211 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-11-13 18:44:16,211 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-13 18:44:16,211 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-11-13 18:44:16,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 18:44:16,212 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-11-13 18:44:16,212 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-11-13 18:44:16,212 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-11-13 18:44:16,212 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-13 18:44:16,212 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-11-13 18:44:16,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-13 18:44:16,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-13 18:44:16,213 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-11-13 18:44:16,213 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-11-13 18:44:16,213 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-13 18:44:16,213 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-11-13 18:44:16,213 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-11-13 18:44:16,214 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-11-13 18:44:16,214 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-11-13 18:44:16,214 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-11-13 18:44:16,214 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-11-13 18:44:16,214 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-11-13 18:44:16,215 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-11-13 18:44:16,215 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-11-13 18:44:16,215 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-11-13 18:44:16,215 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-11-13 18:44:16,215 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-13 18:44:16,215 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-11-13 18:44:16,215 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-11-13 18:44:16,216 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-11-13 18:44:16,216 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-11-13 18:44:16,216 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-11-13 18:44:16,216 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 18:44:16,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-13 18:44:16,216 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 18:44:16,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-11-13 18:44:16,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-13 18:44:16,217 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-13 18:44:16,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-13 18:44:16,217 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-13 18:44:16,800 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-13 18:44:17,164 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-13 18:44:17,477 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 18:44:17,478 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-13 18:44:17,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:44:17 BoogieIcfgContainer [2021-11-13 18:44:17,481 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 18:44:17,482 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 18:44:17,483 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 18:44:17,486 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 18:44:17,486 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 06:44:15" (1/3) ... [2021-11-13 18:44:17,487 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3893fb55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:44:17, skipping insertion in model container [2021-11-13 18:44:17,487 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:44:15" (2/3) ... [2021-11-13 18:44:17,487 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3893fb55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:44:17, skipping insertion in model container [2021-11-13 18:44:17,488 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:44:17" (3/3) ... [2021-11-13 18:44:17,489 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test18.i [2021-11-13 18:44:17,495 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 18:44:17,495 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 81 error locations. [2021-11-13 18:44:17,542 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 18:44:17,548 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 18:44:17,548 INFO L340 AbstractCegarLoop]: Starting to check reachability of 81 error locations. [2021-11-13 18:44:17,565 INFO L276 IsEmpty]: Start isEmpty. Operand has 117 states, 66 states have (on average 1.606060606060606) internal successors, (106), 94 states have internal predecessors, (106), 12 states have call successors, (12), 10 states have call predecessors, (12), 10 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2021-11-13 18:44:17,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-13 18:44:17,574 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:44:17,575 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:44:17,575 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-11-13 18:44:17,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:44:17,581 INFO L85 PathProgramCache]: Analyzing trace with hash 917895108, now seen corresponding path program 1 times [2021-11-13 18:44:17,593 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 18:44:17,593 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2106612287] [2021-11-13 18:44:17,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:44:17,595 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 18:44:17,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 18:44:17,599 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 18:44:17,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-13 18:44:17,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:44:17,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 18:44:17,811 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:44:17,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:44:17,949 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:44:18,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:44:18,068 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 18:44:18,069 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2106612287] [2021-11-13 18:44:18,070 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2106612287] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 18:44:18,071 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:44:18,072 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-13 18:44:18,074 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851948596] [2021-11-13 18:44:18,076 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 18:44:18,086 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 18:44:18,087 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 18:44:18,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 18:44:18,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:44:18,126 INFO L87 Difference]: Start difference. First operand has 117 states, 66 states have (on average 1.606060606060606) internal successors, (106), 94 states have internal predecessors, (106), 12 states have call successors, (12), 10 states have call predecessors, (12), 10 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-13 18:44:18,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:44:18,290 INFO L93 Difference]: Finished difference Result 78 states and 90 transitions. [2021-11-13 18:44:18,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 18:44:18,296 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 17 [2021-11-13 18:44:18,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:44:18,305 INFO L225 Difference]: With dead ends: 78 [2021-11-13 18:44:18,306 INFO L226 Difference]: Without dead ends: 75 [2021-11-13 18:44:18,308 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:44:18,318 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 30 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 96.45ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.80ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 121.16ms IncrementalHoareTripleChecker+Time [2021-11-13 18:44:18,321 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 167 Invalid, 50 Unknown, 0 Unchecked, 7.80ms Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 121.16ms Time] [2021-11-13 18:44:18,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2021-11-13 18:44:18,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 48. [2021-11-13 18:44:18,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 28 states have (on average 1.5357142857142858) internal successors, (43), 38 states have internal predecessors, (43), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2021-11-13 18:44:18,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 54 transitions. [2021-11-13 18:44:18,382 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 54 transitions. Word has length 17 [2021-11-13 18:44:18,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:44:18,382 INFO L470 AbstractCegarLoop]: Abstraction has 48 states and 54 transitions. [2021-11-13 18:44:18,383 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-13 18:44:18,383 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 54 transitions. [2021-11-13 18:44:18,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-13 18:44:18,385 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:44:18,385 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:44:18,401 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-13 18:44:18,601 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 18:44:18,602 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-11-13 18:44:18,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:44:18,603 INFO L85 PathProgramCache]: Analyzing trace with hash -1634261853, now seen corresponding path program 1 times [2021-11-13 18:44:18,603 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 18:44:18,603 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [914212952] [2021-11-13 18:44:18,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:44:18,604 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 18:44:18,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 18:44:18,605 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 18:44:18,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-13 18:44:18,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:44:18,751 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-13 18:44:18,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:44:18,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:44:18,841 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:44:18,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:44:18,939 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 18:44:18,940 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [914212952] [2021-11-13 18:44:18,940 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [914212952] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 18:44:18,940 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:44:18,940 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-13 18:44:18,940 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557477200] [2021-11-13 18:44:18,940 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 18:44:18,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 18:44:18,942 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 18:44:18,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:44:18,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:44:18,944 INFO L87 Difference]: Start difference. First operand 48 states and 54 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-13 18:44:19,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:44:19,059 INFO L93 Difference]: Finished difference Result 76 states and 86 transitions. [2021-11-13 18:44:19,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:44:19,060 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 17 [2021-11-13 18:44:19,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:44:19,062 INFO L225 Difference]: With dead ends: 76 [2021-11-13 18:44:19,062 INFO L226 Difference]: Without dead ends: 73 [2021-11-13 18:44:19,062 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:44:19,064 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 26 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 76.59ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.13ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 90.79ms IncrementalHoareTripleChecker+Time [2021-11-13 18:44:19,064 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 98 Invalid, 33 Unknown, 0 Unchecked, 4.13ms Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 90.79ms Time] [2021-11-13 18:44:19,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-11-13 18:44:19,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 44. [2021-11-13 18:44:19,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 25 states have (on average 1.56) internal successors, (39), 35 states have internal predecessors, (39), 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) [2021-11-13 18:44:19,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 48 transitions. [2021-11-13 18:44:19,079 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 48 transitions. Word has length 17 [2021-11-13 18:44:19,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:44:19,080 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 48 transitions. [2021-11-13 18:44:19,080 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-13 18:44:19,080 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions. [2021-11-13 18:44:19,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-13 18:44:19,082 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:44:19,082 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:44:19,102 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-13 18:44:19,295 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 18:44:19,295 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting entry_pointErr7ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-11-13 18:44:19,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:44:19,296 INFO L85 PathProgramCache]: Analyzing trace with hash -1661450729, now seen corresponding path program 1 times [2021-11-13 18:44:19,299 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 18:44:19,299 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [549770213] [2021-11-13 18:44:19,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:44:19,300 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 18:44:19,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 18:44:19,302 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 18:44:19,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-13 18:44:19,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:44:19,450 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 18:44:19,452 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:44:19,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:44:19,511 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:44:19,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:44:19,571 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 18:44:19,571 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [549770213] [2021-11-13 18:44:19,571 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [549770213] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 18:44:19,571 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:44:19,571 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-13 18:44:19,572 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477839075] [2021-11-13 18:44:19,572 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 18:44:19,572 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 18:44:19,573 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 18:44:19,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 18:44:19,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:44:19,574 INFO L87 Difference]: Start difference. First operand 44 states and 48 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-13 18:44:19,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:44:19,653 INFO L93 Difference]: Finished difference Result 93 states and 101 transitions. [2021-11-13 18:44:19,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 18:44:19,654 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 18 [2021-11-13 18:44:19,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:44:19,656 INFO L225 Difference]: With dead ends: 93 [2021-11-13 18:44:19,656 INFO L226 Difference]: Without dead ends: 93 [2021-11-13 18:44:19,656 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2021-11-13 18:44:19,657 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 104 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 47.30ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.00ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 55.94ms IncrementalHoareTripleChecker+Time [2021-11-13 18:44:19,658 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 143 Invalid, 26 Unknown, 0 Unchecked, 2.00ms Time], IncrementalHoareTripleChecker [6 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 55.94ms Time] [2021-11-13 18:44:19,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2021-11-13 18:44:19,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 51. [2021-11-13 18:44:19,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 31 states have (on average 1.5483870967741935) internal successors, (48), 41 states have internal predecessors, (48), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-13 18:44:19,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 59 transitions. [2021-11-13 18:44:19,666 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 59 transitions. Word has length 18 [2021-11-13 18:44:19,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:44:19,667 INFO L470 AbstractCegarLoop]: Abstraction has 51 states and 59 transitions. [2021-11-13 18:44:19,667 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-13 18:44:19,667 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 59 transitions. [2021-11-13 18:44:19,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-13 18:44:19,668 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:44:19,668 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:44:19,683 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-13 18:44:19,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 18:44:19,884 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting entry_pointErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-11-13 18:44:19,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:44:19,885 INFO L85 PathProgramCache]: Analyzing trace with hash -2108901776, now seen corresponding path program 1 times [2021-11-13 18:44:19,885 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 18:44:19,885 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1984633484] [2021-11-13 18:44:19,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:44:19,885 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 18:44:19,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 18:44:19,886 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 18:44:19,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-13 18:44:20,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:44:20,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-13 18:44:20,064 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:44:20,114 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-13 18:44:20,244 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-13 18:44:20,245 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 26 [2021-11-13 18:44:20,293 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:44:20,293 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:44:20,562 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:44:20,563 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 18:44:20,563 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1984633484] [2021-11-13 18:44:20,563 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1984633484] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 18:44:20,563 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-13 18:44:20,563 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 7 [2021-11-13 18:44:20,564 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518404794] [2021-11-13 18:44:20,564 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-13 18:44:20,564 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-13 18:44:20,564 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 18:44:20,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-13 18:44:20,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-13 18:44:20,565 INFO L87 Difference]: Start difference. First operand 51 states and 59 transitions. Second operand has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-13 18:44:20,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:44:20,736 INFO L93 Difference]: Finished difference Result 76 states and 88 transitions. [2021-11-13 18:44:20,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 18:44:20,737 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 23 [2021-11-13 18:44:20,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:44:20,738 INFO L225 Difference]: With dead ends: 76 [2021-11-13 18:44:20,738 INFO L226 Difference]: Without dead ends: 76 [2021-11-13 18:44:20,739 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 33 SyntacticMatches, 6 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-11-13 18:44:20,740 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 22 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 125.90ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.92ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 30 IncrementalHoareTripleChecker+Unchecked, 147.12ms IncrementalHoareTripleChecker+Time [2021-11-13 18:44:20,740 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 162 Invalid, 109 Unknown, 0 Unchecked, 1.92ms Time], IncrementalHoareTripleChecker [4 Valid, 75 Invalid, 0 Unknown, 30 Unchecked, 147.12ms Time] [2021-11-13 18:44:20,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2021-11-13 18:44:20,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 70. [2021-11-13 18:44:20,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 47 states have (on average 1.4893617021276595) internal successors, (70), 57 states have internal predecessors, (70), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (8), 7 states have call predecessors, (8), 6 states have call successors, (8) [2021-11-13 18:44:20,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 85 transitions. [2021-11-13 18:44:20,751 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 85 transitions. Word has length 23 [2021-11-13 18:44:20,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:44:20,751 INFO L470 AbstractCegarLoop]: Abstraction has 70 states and 85 transitions. [2021-11-13 18:44:20,752 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-13 18:44:20,752 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 85 transitions. [2021-11-13 18:44:20,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-13 18:44:20,753 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:44:20,753 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:44:20,769 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-13 18:44:20,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 18:44:20,964 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting entry_pointErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-11-13 18:44:20,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:44:20,964 INFO L85 PathProgramCache]: Analyzing trace with hash -2108901775, now seen corresponding path program 1 times [2021-11-13 18:44:20,965 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 18:44:20,965 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1535104697] [2021-11-13 18:44:20,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:44:20,965 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 18:44:20,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 18:44:20,966 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 18:44:20,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-13 18:44:21,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:44:21,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-13 18:44:21,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:44:21,208 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-13 18:44:21,215 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-13 18:44:23,593 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-13 18:44:23,593 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2021-11-13 18:44:23,606 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-13 18:44:23,606 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 26 [2021-11-13 18:44:23,682 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:44:23,682 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:44:34,887 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_entry_point_~i~0_BEFORE_CALL_2 (_ BitVec 32)) (v_entry_point_~array~0.base_BEFORE_CALL_4 (_ BitVec 32)) (|v_ldv_malloc_#res.base_32| (_ BitVec 32)) (v_entry_point_~array~0.offset_BEFORE_CALL_2 (_ BitVec 32))) (or (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_ldv_malloc_#res.base_32|)))) (exists ((|v_ldv_malloc_#res.base_31| (_ BitVec 32))) (and (= (_ bv0 1) (bvneg (bvneg (select |c_old(#valid)| |v_ldv_malloc_#res.base_31|)))) (or (exists ((v_ldv_malloc_~size_28 (_ BitVec 32))) (not (bvule (bvadd (_ bv4 32) (bvmul v_entry_point_~i~0_BEFORE_CALL_2 (_ bv4 32)) v_entry_point_~array~0.offset_BEFORE_CALL_2) (select (store |c_old(#length)| |v_ldv_malloc_#res.base_31| v_ldv_malloc_~size_28) v_entry_point_~array~0.base_BEFORE_CALL_4)))) (not (let ((.cse0 (bvmul v_entry_point_~i~0_BEFORE_CALL_2 (_ bv4 32)))) (bvule (bvadd .cse0 v_entry_point_~array~0.offset_BEFORE_CALL_2) (bvadd (_ bv4 32) .cse0 v_entry_point_~array~0.offset_BEFORE_CALL_2))))))) (and (forall ((ldv_malloc_~size (_ BitVec 32))) (bvule (bvadd (_ bv4 32) (bvmul v_entry_point_~i~0_BEFORE_CALL_2 (_ bv4 32)) v_entry_point_~array~0.offset_BEFORE_CALL_2) (select (store |c_#length| |v_ldv_malloc_#res.base_32| ldv_malloc_~size) v_entry_point_~array~0.base_BEFORE_CALL_4))) (let ((.cse1 (bvmul v_entry_point_~i~0_BEFORE_CALL_2 (_ bv4 32)))) (bvule (bvadd .cse1 v_entry_point_~array~0.offset_BEFORE_CALL_2) (bvadd (_ bv4 32) .cse1 v_entry_point_~array~0.offset_BEFORE_CALL_2)))))) is different from false [2021-11-13 18:44:37,460 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 27 [2021-11-13 18:44:38,032 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 25 [2021-11-13 18:44:38,203 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2021-11-13 18:44:38,204 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 18:44:38,204 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1535104697] [2021-11-13 18:44:38,205 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1535104697] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 18:44:38,207 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-13 18:44:38,207 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2021-11-13 18:44:38,208 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812584154] [2021-11-13 18:44:38,208 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-13 18:44:38,208 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-13 18:44:38,209 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 18:44:38,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-13 18:44:38,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=4, NotChecked=34, Total=380 [2021-11-13 18:44:38,211 INFO L87 Difference]: Start difference. First operand 70 states and 85 transitions. Second operand has 20 states, 17 states have (on average 1.6470588235294117) internal successors, (28), 18 states have internal predecessors, (28), 5 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-13 18:44:48,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:44:48,062 INFO L93 Difference]: Finished difference Result 231 states and 279 transitions. [2021-11-13 18:44:48,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-13 18:44:48,063 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 17 states have (on average 1.6470588235294117) internal successors, (28), 18 states have internal predecessors, (28), 5 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 23 [2021-11-13 18:44:48,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:44:48,065 INFO L225 Difference]: With dead ends: 231 [2021-11-13 18:44:48,066 INFO L226 Difference]: Without dead ends: 231 [2021-11-13 18:44:48,066 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 28 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 18.7s TimeCoverageRelationStatistics Valid=79, Invalid=471, Unknown=6, NotChecked=44, Total=600 [2021-11-13 18:44:48,067 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 260 mSDsluCounter, 550 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 962.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 920 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.38ms SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 492 IncrementalHoareTripleChecker+Unchecked, 1105.54ms IncrementalHoareTripleChecker+Time [2021-11-13 18:44:48,068 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [260 Valid, 605 Invalid, 920 Unknown, 0 Unchecked, 9.38ms Time], IncrementalHoareTripleChecker [40 Valid, 388 Invalid, 0 Unknown, 492 Unchecked, 1105.54ms Time] [2021-11-13 18:44:48,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2021-11-13 18:44:48,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 100. [2021-11-13 18:44:48,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 74 states have (on average 1.4864864864864864) internal successors, (110), 84 states have internal predecessors, (110), 9 states have call successors, (9), 5 states have call predecessors, (9), 6 states have return successors, (14), 10 states have call predecessors, (14), 8 states have call successors, (14) [2021-11-13 18:44:48,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 133 transitions. [2021-11-13 18:44:48,084 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 133 transitions. Word has length 23 [2021-11-13 18:44:48,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:44:48,085 INFO L470 AbstractCegarLoop]: Abstraction has 100 states and 133 transitions. [2021-11-13 18:44:48,085 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 17 states have (on average 1.6470588235294117) internal successors, (28), 18 states have internal predecessors, (28), 5 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-13 18:44:48,085 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 133 transitions. [2021-11-13 18:44:48,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-13 18:44:48,086 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:44:48,086 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:44:48,101 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-11-13 18:44:48,298 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 18:44:48,298 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting entry_pointErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-11-13 18:44:48,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:44:48,299 INFO L85 PathProgramCache]: Analyzing trace with hash 1680506895, now seen corresponding path program 1 times [2021-11-13 18:44:48,299 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 18:44:48,300 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1469119391] [2021-11-13 18:44:48,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:44:48,301 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 18:44:48,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 18:44:48,302 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 18:44:48,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-13 18:44:48,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:44:48,431 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-13 18:44:48,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:44:48,535 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:44:48,535 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:44:48,653 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-13 18:44:48,653 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 18:44:48,653 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1469119391] [2021-11-13 18:44:48,653 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1469119391] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 18:44:48,653 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 18:44:48,654 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2021-11-13 18:44:48,654 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181169649] [2021-11-13 18:44:48,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:44:48,654 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 18:44:48,654 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 18:44:48,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 18:44:48,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:44:48,655 INFO L87 Difference]: Start difference. First operand 100 states and 133 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-13 18:44:48,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:44:48,707 INFO L93 Difference]: Finished difference Result 91 states and 119 transitions. [2021-11-13 18:44:48,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 18:44:48,708 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 23 [2021-11-13 18:44:48,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:44:48,710 INFO L225 Difference]: With dead ends: 91 [2021-11-13 18:44:48,710 INFO L226 Difference]: Without dead ends: 87 [2021-11-13 18:44:48,710 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:44:48,711 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 0 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.13ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.92ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 47.92ms IncrementalHoareTripleChecker+Time [2021-11-13 18:44:48,712 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 182 Invalid, 18 Unknown, 0 Unchecked, 0.92ms Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 47.92ms Time] [2021-11-13 18:44:48,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2021-11-13 18:44:48,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2021-11-13 18:44:48,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 64 states have (on average 1.5) internal successors, (96), 73 states have internal predecessors, (96), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (11), 8 states have call predecessors, (11), 7 states have call successors, (11) [2021-11-13 18:44:48,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 115 transitions. [2021-11-13 18:44:48,731 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 115 transitions. Word has length 23 [2021-11-13 18:44:48,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:44:48,731 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 115 transitions. [2021-11-13 18:44:48,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-13 18:44:48,732 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 115 transitions. [2021-11-13 18:44:48,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-13 18:44:48,733 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:44:48,733 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:44:48,748 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-13 18:44:48,947 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 18:44:48,948 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting entry_pointErr3REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-11-13 18:44:48,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:44:48,948 INFO L85 PathProgramCache]: Analyzing trace with hash 569916636, now seen corresponding path program 1 times [2021-11-13 18:44:48,948 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 18:44:48,948 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [403798253] [2021-11-13 18:44:48,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:44:48,949 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 18:44:48,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 18:44:48,950 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 18:44:48,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-13 18:44:49,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:44:49,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 18:44:49,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:44:49,158 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-13 18:44:49,158 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:44:49,236 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-13 18:44:49,237 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 18:44:49,237 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [403798253] [2021-11-13 18:44:49,237 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [403798253] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 18:44:49,237 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:44:49,237 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-13 18:44:49,237 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001486988] [2021-11-13 18:44:49,237 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 18:44:49,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 18:44:49,238 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 18:44:49,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 18:44:49,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:44:49,239 INFO L87 Difference]: Start difference. First operand 87 states and 115 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-13 18:44:49,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:44:49,287 INFO L93 Difference]: Finished difference Result 129 states and 166 transitions. [2021-11-13 18:44:49,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 18:44:49,293 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 25 [2021-11-13 18:44:49,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:44:49,294 INFO L225 Difference]: With dead ends: 129 [2021-11-13 18:44:49,294 INFO L226 Difference]: Without dead ends: 129 [2021-11-13 18:44:49,295 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:44:49,296 INFO L933 BasicCegarLoop]: 67 mSDtfsCounter, 26 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.93ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.43ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.09ms IncrementalHoareTripleChecker+Time [2021-11-13 18:44:49,296 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 243 Invalid, 19 Unknown, 0 Unchecked, 1.43ms Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 31.09ms Time] [2021-11-13 18:44:49,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2021-11-13 18:44:49,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 91. [2021-11-13 18:44:49,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 68 states have (on average 1.4558823529411764) internal successors, (99), 75 states have internal predecessors, (99), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (11), 10 states have call predecessors, (11), 7 states have call successors, (11) [2021-11-13 18:44:49,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 118 transitions. [2021-11-13 18:44:49,306 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 118 transitions. Word has length 25 [2021-11-13 18:44:49,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:44:49,307 INFO L470 AbstractCegarLoop]: Abstraction has 91 states and 118 transitions. [2021-11-13 18:44:49,307 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-13 18:44:49,307 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 118 transitions. [2021-11-13 18:44:49,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-13 18:44:49,308 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:44:49,308 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:44:49,319 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-13 18:44:49,513 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 18:44:49,513 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting entry_pointErr3REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-11-13 18:44:49,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:44:49,514 INFO L85 PathProgramCache]: Analyzing trace with hash -1982240325, now seen corresponding path program 1 times [2021-11-13 18:44:49,514 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 18:44:49,514 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1889703123] [2021-11-13 18:44:49,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:44:49,515 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 18:44:49,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 18:44:49,515 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 18:44:49,516 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-13 18:44:49,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:44:49,631 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 18:44:49,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:44:49,694 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-13 18:44:49,695 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:44:49,799 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-13 18:44:49,800 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 18:44:49,800 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1889703123] [2021-11-13 18:44:49,800 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1889703123] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 18:44:49,800 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:44:49,800 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-13 18:44:49,801 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917967209] [2021-11-13 18:44:49,801 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 18:44:49,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 18:44:49,802 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 18:44:49,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 18:44:49,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:44:49,802 INFO L87 Difference]: Start difference. First operand 91 states and 118 transitions. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-11-13 18:44:49,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:44:49,906 INFO L93 Difference]: Finished difference Result 89 states and 108 transitions. [2021-11-13 18:44:49,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 18:44:49,908 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 25 [2021-11-13 18:44:49,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:44:49,909 INFO L225 Difference]: With dead ends: 89 [2021-11-13 18:44:49,910 INFO L226 Difference]: Without dead ends: 89 [2021-11-13 18:44:49,910 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-13 18:44:49,911 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 28 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 77.43ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.29ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 88.12ms IncrementalHoareTripleChecker+Time [2021-11-13 18:44:49,911 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 161 Invalid, 28 Unknown, 0 Unchecked, 1.29ms Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 88.12ms Time] [2021-11-13 18:44:49,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2021-11-13 18:44:49,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 83. [2021-11-13 18:44:49,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 60 states have (on average 1.3833333333333333) internal successors, (83), 67 states have internal predecessors, (83), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (11), 10 states have call predecessors, (11), 7 states have call successors, (11) [2021-11-13 18:44:49,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 102 transitions. [2021-11-13 18:44:49,919 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 102 transitions. Word has length 25 [2021-11-13 18:44:49,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:44:49,920 INFO L470 AbstractCegarLoop]: Abstraction has 83 states and 102 transitions. [2021-11-13 18:44:49,920 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-11-13 18:44:49,920 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 102 transitions. [2021-11-13 18:44:49,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-13 18:44:49,922 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:44:49,922 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:44:49,937 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-13 18:44:50,133 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 18:44:50,134 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting entry_pointErr8ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-11-13 18:44:50,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:44:50,134 INFO L85 PathProgramCache]: Analyzing trace with hash -1319909042, now seen corresponding path program 1 times [2021-11-13 18:44:50,135 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 18:44:50,135 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [26538886] [2021-11-13 18:44:50,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:44:50,135 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 18:44:50,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 18:44:50,136 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 18:44:50,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-13 18:44:50,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:44:50,255 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-13 18:44:50,257 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:44:50,591 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:44:50,591 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:44:50,760 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-13 18:44:50,760 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 18:44:50,760 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [26538886] [2021-11-13 18:44:50,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [26538886] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 18:44:50,761 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-13 18:44:50,761 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4] total 9 [2021-11-13 18:44:50,761 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823071568] [2021-11-13 18:44:50,761 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-13 18:44:50,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-13 18:44:50,762 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 18:44:50,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-13 18:44:50,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-11-13 18:44:50,763 INFO L87 Difference]: Start difference. First operand 83 states and 102 transitions. Second operand has 10 states, 9 states have (on average 3.888888888888889) internal successors, (35), 8 states have internal predecessors, (35), 4 states have call successors, (9), 3 states have call predecessors, (9), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2021-11-13 18:44:51,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:44:51,014 INFO L93 Difference]: Finished difference Result 82 states and 100 transitions. [2021-11-13 18:44:51,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 18:44:51,015 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.888888888888889) internal successors, (35), 8 states have internal predecessors, (35), 4 states have call successors, (9), 3 states have call predecessors, (9), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) Word has length 26 [2021-11-13 18:44:51,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:44:51,016 INFO L225 Difference]: With dead ends: 82 [2021-11-13 18:44:51,016 INFO L226 Difference]: Without dead ends: 82 [2021-11-13 18:44:51,017 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-11-13 18:44:51,017 INFO L933 BasicCegarLoop]: 33 mSDtfsCounter, 52 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 209.06ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.78ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 15 IncrementalHoareTripleChecker+Unchecked, 241.76ms IncrementalHoareTripleChecker+Time [2021-11-13 18:44:51,018 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 143 Invalid, 112 Unknown, 0 Unchecked, 2.78ms Time], IncrementalHoareTripleChecker [1 Valid, 96 Invalid, 0 Unknown, 15 Unchecked, 241.76ms Time] [2021-11-13 18:44:51,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2021-11-13 18:44:51,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2021-11-13 18:44:51,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 60 states have (on average 1.35) internal successors, (81), 66 states have internal predecessors, (81), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (11), 10 states have call predecessors, (11), 7 states have call successors, (11) [2021-11-13 18:44:51,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 100 transitions. [2021-11-13 18:44:51,024 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 100 transitions. Word has length 26 [2021-11-13 18:44:51,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:44:51,025 INFO L470 AbstractCegarLoop]: Abstraction has 82 states and 100 transitions. [2021-11-13 18:44:51,025 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.888888888888889) internal successors, (35), 8 states have internal predecessors, (35), 4 states have call successors, (9), 3 states have call predecessors, (9), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2021-11-13 18:44:51,025 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 100 transitions. [2021-11-13 18:44:51,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-13 18:44:51,026 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:44:51,026 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:44:51,036 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-13 18:44:51,233 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 18:44:51,233 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-11-13 18:44:51,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:44:51,234 INFO L85 PathProgramCache]: Analyzing trace with hash -446583614, now seen corresponding path program 1 times [2021-11-13 18:44:51,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 18:44:51,234 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1717497767] [2021-11-13 18:44:51,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:44:51,234 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 18:44:51,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 18:44:51,235 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 18:44:51,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-13 18:44:51,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:44:51,362 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-13 18:44:51,364 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:44:51,659 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-13 18:44:51,659 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:45:00,349 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 18:45:00,349 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1717497767] [2021-11-13 18:45:00,350 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Shadow problem: [|v_old(#valid)_BEFORE_CALL_8|] [2021-11-13 18:45:00,350 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1921312458] [2021-11-13 18:45:00,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:45:00,350 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-13 18:45:00,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/cvc4 [2021-11-13 18:45:00,365 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-13 18:45:00,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2021-11-13 18:45:00,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:00,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-13 18:45:00,592 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:45:00,622 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-13 18:45:00,622 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 28 [2021-11-13 18:45:07,148 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-13 18:45:07,148 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:45:19,992 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Shadow problem: [|v_old(#valid)_BEFORE_CALL_13|] [2021-11-13 18:45:19,992 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1866022437] [2021-11-13 18:45:19,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:45:19,992 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:45:19,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:45:19,998 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 18:45:20,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-13 18:45:20,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:20,148 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-13 18:45:20,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:45:20,354 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-13 18:45:20,354 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:45:31,422 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Shadow problem: [|v_old(#valid)_BEFORE_CALL_18|] [2021-11-13 18:45:31,422 INFO L186 FreeRefinementEngine]: Found 0 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:45:31,422 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-11-13 18:45:31,422 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-11-13 18:45:31,422 INFO L628 BasicCegarLoop]: Counterexample might be feasible [2021-11-13 18:45:31,430 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK (80 of 81 remaining) [2021-11-13 18:45:31,433 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION (79 of 81 remaining) [2021-11-13 18:45:31,433 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION (78 of 81 remaining) [2021-11-13 18:45:31,433 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION (77 of 81 remaining) [2021-11-13 18:45:31,434 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION (76 of 81 remaining) [2021-11-13 18:45:31,434 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION (75 of 81 remaining) [2021-11-13 18:45:31,434 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION (74 of 81 remaining) [2021-11-13 18:45:31,434 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION (73 of 81 remaining) [2021-11-13 18:45:31,435 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION (72 of 81 remaining) [2021-11-13 18:45:31,435 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION (71 of 81 remaining) [2021-11-13 18:45:31,435 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION (70 of 81 remaining) [2021-11-13 18:45:31,435 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION (69 of 81 remaining) [2021-11-13 18:45:31,436 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION (68 of 81 remaining) [2021-11-13 18:45:31,436 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION (67 of 81 remaining) [2021-11-13 18:45:31,436 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION (66 of 81 remaining) [2021-11-13 18:45:31,436 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION (65 of 81 remaining) [2021-11-13 18:45:31,436 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION (64 of 81 remaining) [2021-11-13 18:45:31,437 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION (63 of 81 remaining) [2021-11-13 18:45:31,437 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION (62 of 81 remaining) [2021-11-13 18:45:31,437 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION (61 of 81 remaining) [2021-11-13 18:45:31,437 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION (60 of 81 remaining) [2021-11-13 18:45:31,438 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION (59 of 81 remaining) [2021-11-13 18:45:31,438 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION (58 of 81 remaining) [2021-11-13 18:45:31,438 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION (57 of 81 remaining) [2021-11-13 18:45:31,438 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION (56 of 81 remaining) [2021-11-13 18:45:31,438 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION (55 of 81 remaining) [2021-11-13 18:45:31,439 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION (54 of 81 remaining) [2021-11-13 18:45:31,439 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION (53 of 81 remaining) [2021-11-13 18:45:31,439 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION (52 of 81 remaining) [2021-11-13 18:45:31,439 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION (51 of 81 remaining) [2021-11-13 18:45:31,439 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION (50 of 81 remaining) [2021-11-13 18:45:31,440 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION (49 of 81 remaining) [2021-11-13 18:45:31,440 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION (48 of 81 remaining) [2021-11-13 18:45:31,440 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION (47 of 81 remaining) [2021-11-13 18:45:31,440 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION (46 of 81 remaining) [2021-11-13 18:45:31,441 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION (45 of 81 remaining) [2021-11-13 18:45:31,465 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION (44 of 81 remaining) [2021-11-13 18:45:31,466 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION (43 of 81 remaining) [2021-11-13 18:45:31,466 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION (42 of 81 remaining) [2021-11-13 18:45:31,466 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION (41 of 81 remaining) [2021-11-13 18:45:31,466 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION (40 of 81 remaining) [2021-11-13 18:45:31,466 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION (39 of 81 remaining) [2021-11-13 18:45:31,466 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION (38 of 81 remaining) [2021-11-13 18:45:31,466 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE (37 of 81 remaining) [2021-11-13 18:45:31,467 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE (36 of 81 remaining) [2021-11-13 18:45:31,467 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE (35 of 81 remaining) [2021-11-13 18:45:31,467 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE (34 of 81 remaining) [2021-11-13 18:45:31,467 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE (33 of 81 remaining) [2021-11-13 18:45:31,467 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE (32 of 81 remaining) [2021-11-13 18:45:31,467 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION (31 of 81 remaining) [2021-11-13 18:45:31,468 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION (30 of 81 remaining) [2021-11-13 18:45:31,468 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION (29 of 81 remaining) [2021-11-13 18:45:31,468 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION (28 of 81 remaining) [2021-11-13 18:45:31,468 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION (27 of 81 remaining) [2021-11-13 18:45:31,468 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION (26 of 81 remaining) [2021-11-13 18:45:31,468 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION (25 of 81 remaining) [2021-11-13 18:45:31,468 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION (24 of 81 remaining) [2021-11-13 18:45:31,468 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE (23 of 81 remaining) [2021-11-13 18:45:31,469 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE (22 of 81 remaining) [2021-11-13 18:45:31,469 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE (21 of 81 remaining) [2021-11-13 18:45:31,469 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE (20 of 81 remaining) [2021-11-13 18:45:31,469 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE (19 of 81 remaining) [2021-11-13 18:45:31,469 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE (18 of 81 remaining) [2021-11-13 18:45:31,469 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION (17 of 81 remaining) [2021-11-13 18:45:31,470 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION (16 of 81 remaining) [2021-11-13 18:45:31,470 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION (15 of 81 remaining) [2021-11-13 18:45:31,470 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION (14 of 81 remaining) [2021-11-13 18:45:31,470 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION (13 of 81 remaining) [2021-11-13 18:45:31,470 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION (12 of 81 remaining) [2021-11-13 18:45:31,470 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION (11 of 81 remaining) [2021-11-13 18:45:31,470 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION (10 of 81 remaining) [2021-11-13 18:45:31,470 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr0REQUIRES_VIOLATION (9 of 81 remaining) [2021-11-13 18:45:31,471 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr1REQUIRES_VIOLATION (8 of 81 remaining) [2021-11-13 18:45:31,471 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr2REQUIRES_VIOLATION (7 of 81 remaining) [2021-11-13 18:45:31,471 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr3REQUIRES_VIOLATION (6 of 81 remaining) [2021-11-13 18:45:31,471 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE (5 of 81 remaining) [2021-11-13 18:45:31,471 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE (4 of 81 remaining) [2021-11-13 18:45:31,471 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE (3 of 81 remaining) [2021-11-13 18:45:31,471 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr7ASSERT_VIOLATIONMEMORY_FREE (2 of 81 remaining) [2021-11-13 18:45:31,472 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr8ASSERT_VIOLATIONMEMORY_FREE (1 of 81 remaining) [2021-11-13 18:45:31,472 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr9ASSERT_VIOLATIONMEMORY_FREE (0 of 81 remaining) [2021-11-13 18:45:31,489 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/cvc4 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0 [2021-11-13 18:45:31,694 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-11-13 18:45:31,882 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-13 18:45:32,073 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/cvc4 --incremental --print-success --lang smt,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 18:45:32,079 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:45:32,083 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-13 18:45:32,087 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-11-13 18:45:32,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 06:45:32 BoogieIcfgContainer [2021-11-13 18:45:32,098 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-13 18:45:32,099 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 18:45:32,099 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 18:45:32,099 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 18:45:32,100 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:44:17" (3/4) ... [2021-11-13 18:45:32,104 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-13 18:45:32,104 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 18:45:32,105 INFO L158 Benchmark]: Toolchain (without parser) took 76931.31ms. Allocated memory was 81.8MB in the beginning and 132.1MB in the end (delta: 50.3MB). Free memory was 57.5MB in the beginning and 99.5MB in the end (delta: -42.0MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. [2021-11-13 18:45:32,105 INFO L158 Benchmark]: CDTParser took 0.64ms. Allocated memory is still 50.3MB. Free memory is still 30.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 18:45:32,106 INFO L158 Benchmark]: CACSL2BoogieTranslator took 752.64ms. Allocated memory is still 81.8MB. Free memory was 57.3MB in the beginning and 44.6MB in the end (delta: 12.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-13 18:45:32,106 INFO L158 Benchmark]: Boogie Preprocessor took 159.02ms. Allocated memory is still 81.8MB. Free memory was 44.6MB in the beginning and 39.9MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-13 18:45:32,107 INFO L158 Benchmark]: RCFGBuilder took 1390.66ms. Allocated memory is still 81.8MB. Free memory was 39.9MB in the beginning and 41.7MB in the end (delta: -1.8MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. [2021-11-13 18:45:32,107 INFO L158 Benchmark]: TraceAbstraction took 74615.92ms. Allocated memory was 81.8MB in the beginning and 132.1MB in the end (delta: 50.3MB). Free memory was 40.8MB in the beginning and 99.5MB in the end (delta: -58.7MB). Peak memory consumption was 58.6MB. Max. memory is 16.1GB. [2021-11-13 18:45:32,108 INFO L158 Benchmark]: Witness Printer took 5.26ms. Allocated memory is still 132.1MB. Free memory is still 99.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 18:45:32,110 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.64ms. Allocated memory is still 50.3MB. Free memory is still 30.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 752.64ms. Allocated memory is still 81.8MB. Free memory was 57.3MB in the beginning and 44.6MB in the end (delta: 12.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 159.02ms. Allocated memory is still 81.8MB. Free memory was 44.6MB in the beginning and 39.9MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1390.66ms. Allocated memory is still 81.8MB. Free memory was 39.9MB in the beginning and 41.7MB in the end (delta: -1.8MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. * TraceAbstraction took 74615.92ms. Allocated memory was 81.8MB in the beginning and 132.1MB in the end (delta: 50.3MB). Free memory was 40.8MB in the beginning and 99.5MB in the end (delta: -58.7MB). Peak memory consumption was 58.6MB. Max. memory is 16.1GB. * Witness Printer took 5.26ms. Allocated memory is still 132.1MB. Free memory is still 99.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 780]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: unable to decide satisfiability of path constraint, overapproximation of memtrack at line 780. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L781] CALL entry_point() [L761] int len = 10; [L762] CALL, EXPR ldv_malloc(sizeof(struct A18*)*len) [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L762] RET, EXPR ldv_malloc(sizeof(struct A18*)*len) [L762] struct A18 **array = (struct A18 **)ldv_malloc(sizeof(struct A18*)*len); [L763] COND TRUE \read(**array) [L764] struct A18 *p; [L765] int i=0; [L766] int j; [L767] COND TRUE i=0) [L776] free(array) [L776] free(array) [L776] free(array) [L781] RET entry_point() - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 770]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 770]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 774]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 774]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 774]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 774]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 774]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 776]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 776]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 776]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 47 procedures, 357 locations, 81 error locations. Started 1 CEGAR loops. OverallTime: 74.5s, OverallIterations: 10, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 11.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 553 SdHoareTripleChecker+Valid, 1929.42ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 548 mSDsluCounter, 1904 SdHoareTripleChecker+Invalid, 1662.79ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 537 IncrementalHoareTripleChecker+Unchecked, 1458 mSDsCounter, 56 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 722 IncrementalHoareTripleChecker+Invalid, 1315 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 56 mSolverCounterUnsat, 446 mSDtfsCounter, 722 mSolverCounterSat, 31.64ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 397 GetRequests, 329 SyntacticMatches, 9 SemanticMatches, 59 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 19.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=117occurred in iteration=0, InterpolantAutomatonStates: 57, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 279 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 28.2s InterpolantComputationTime, 227 NumberOfCodeBlocks, 227 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 405 ConstructedInterpolants, 26 QuantifiedInterpolants, 2075 SizeOfPredicates, 13 NumberOfNonLiveVariables, 916 ConjunctsInSsa, 72 ConjunctsInUnsatCore, 19 InterpolantComputations, 11 PerfectInterpolantSequences, 34/52 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-13 18:45:32,157 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c8db4-8bb6-4528-8b93-561c3080ac8b/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN