./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 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test18.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 98678a21a2b37b871d00192aacebe14c4ee9cc87b75400dd7a4adc0ccfa93151 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 04:09:42,420 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 04:09:42,423 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 04:09:42,469 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 04:09:42,469 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 04:09:42,474 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 04:09:42,476 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 04:09:42,480 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 04:09:42,483 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 04:09:42,488 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 04:09:42,489 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 04:09:42,491 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 04:09:42,491 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 04:09:42,494 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 04:09:42,497 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 04:09:42,502 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 04:09:42,504 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 04:09:42,505 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 04:09:42,507 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 04:09:42,517 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 04:09:42,519 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 04:09:42,520 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 04:09:42,522 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 04:09:42,522 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 04:09:42,526 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 04:09:42,526 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 04:09:42,527 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 04:09:42,528 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 04:09:42,528 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 04:09:42,529 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 04:09:42,530 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 04:09:42,531 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 04:09:42,532 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 04:09:42,532 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 04:09:42,533 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 04:09:42,534 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 04:09:42,534 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 04:09:42,535 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 04:09:42,535 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 04:09:42,536 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 04:09:42,536 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 04:09:42,537 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-11-19 04:09:42,560 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 04:09:42,560 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 04:09:42,561 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-19 04:09:42,561 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-19 04:09:42,561 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 04:09:42,562 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 04:09:42,562 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 04:09:42,562 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 04:09:42,563 INFO L138 SettingsManager]: * Use SBE=true [2021-11-19 04:09:42,563 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 04:09:42,563 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 04:09:42,563 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-19 04:09:42,564 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 04:09:42,564 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 04:09:42,564 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 04:09:42,564 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-19 04:09:42,565 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-19 04:09:42,565 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-19 04:09:42,565 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 04:09:42,565 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 04:09:42,565 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 04:09:42,566 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 04:09:42,566 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 04:09:42,566 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 04:09:42,566 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 04:09:42,567 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 04:09:42,567 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 04:09:42,567 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 04:09:42,567 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-19 04:09:42,568 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 04:09:42,568 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 04:09:42,568 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_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 98678a21a2b37b871d00192aacebe14c4ee9cc87b75400dd7a4adc0ccfa93151 [2021-11-19 04:09:42,810 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 04:09:42,837 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 04:09:42,842 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 04:09:42,843 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 04:09:42,843 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 04:09:42,845 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/../../sv-benchmarks/c/ldv-memsafety/memleaks_test18.i [2021-11-19 04:09:42,921 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/data/38e390a2b/a0c6183cd97c4e579c906691f92faa9e/FLAGd2410875c [2021-11-19 04:09:43,497 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 04:09:43,498 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/sv-benchmarks/c/ldv-memsafety/memleaks_test18.i [2021-11-19 04:09:43,518 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/data/38e390a2b/a0c6183cd97c4e579c906691f92faa9e/FLAGd2410875c [2021-11-19 04:09:43,770 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/data/38e390a2b/a0c6183cd97c4e579c906691f92faa9e [2021-11-19 04:09:43,772 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 04:09:43,774 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-11-19 04:09:43,775 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 04:09:43,775 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 04:09:43,783 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 04:09:43,783 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:09:43" (1/1) ... [2021-11-19 04:09:43,784 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1eefb8b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:43, skipping insertion in model container [2021-11-19 04:09:43,785 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:09:43" (1/1) ... [2021-11-19 04:09:43,790 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 04:09:43,852 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 04:09:44,324 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 04:09:44,346 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-19 04:09:44,347 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7decda09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:44, skipping insertion in model container [2021-11-19 04:09:44,347 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 04:09:44,347 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-11-19 04:09:44,350 INFO L158 Benchmark]: Toolchain (without parser) took 574.39ms. Allocated memory is still 146.8MB. Free memory was 113.4MB in the beginning and 116.0MB in the end (delta: -2.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-19 04:09:44,351 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 104.9MB. Free memory was 61.8MB in the beginning and 61.8MB in the end (delta: 46.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 04:09:44,353 INFO L158 Benchmark]: CACSL2BoogieTranslator took 571.85ms. Allocated memory is still 146.8MB. Free memory was 113.1MB in the beginning and 116.0MB in the end (delta: -3.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-19 04:09:44,355 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 104.9MB. Free memory was 61.8MB in the beginning and 61.8MB in the end (delta: 46.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 571.85ms. Allocated memory is still 146.8MB. Free memory was 113.1MB in the beginning and 116.0MB in the end (delta: -3.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test18.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 98678a21a2b37b871d00192aacebe14c4ee9cc87b75400dd7a4adc0ccfa93151 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 04:09:46,571 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 04:09:46,574 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 04:09:46,630 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 04:09:46,630 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 04:09:46,635 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 04:09:46,637 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 04:09:46,643 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 04:09:46,646 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 04:09:46,651 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 04:09:46,652 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 04:09:46,654 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 04:09:46,654 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 04:09:46,657 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 04:09:46,659 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 04:09:46,663 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 04:09:46,664 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 04:09:46,665 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 04:09:46,674 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 04:09:46,682 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 04:09:46,684 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 04:09:46,686 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 04:09:46,688 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 04:09:46,691 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 04:09:46,700 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 04:09:46,700 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 04:09:46,700 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 04:09:46,703 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 04:09:46,703 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 04:09:46,704 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 04:09:46,705 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 04:09:46,705 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 04:09:46,707 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 04:09:46,708 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 04:09:46,710 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 04:09:46,710 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 04:09:46,711 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 04:09:46,711 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 04:09:46,711 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 04:09:46,713 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 04:09:46,713 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 04:09:46,714 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-11-19 04:09:46,757 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 04:09:46,757 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 04:09:46,758 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-19 04:09:46,758 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-19 04:09:46,759 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 04:09:46,759 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 04:09:46,760 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 04:09:46,760 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 04:09:46,761 INFO L138 SettingsManager]: * Use SBE=true [2021-11-19 04:09:46,761 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 04:09:46,762 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 04:09:46,762 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-19 04:09:46,762 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 04:09:46,762 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 04:09:46,763 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 04:09:46,763 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-19 04:09:46,763 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-19 04:09:46,763 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-19 04:09:46,763 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 04:09:46,764 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 04:09:46,764 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 04:09:46,764 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 04:09:46,764 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 04:09:46,764 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 04:09:46,765 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 04:09:46,765 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 04:09:46,765 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 04:09:46,765 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 04:09:46,766 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 04:09:46,766 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 04:09:46,766 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-19 04:09:46,766 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 04:09:46,767 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 04:09:46,767 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 04:09:46,767 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_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 98678a21a2b37b871d00192aacebe14c4ee9cc87b75400dd7a4adc0ccfa93151 [2021-11-19 04:09:47,116 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 04:09:47,141 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 04:09:47,144 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 04:09:47,145 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 04:09:47,146 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 04:09:47,147 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/../../sv-benchmarks/c/ldv-memsafety/memleaks_test18.i [2021-11-19 04:09:47,215 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/data/2b02e774e/7fe2091ef94f4da58f1608a723abe59a/FLAG9bca34b67 [2021-11-19 04:09:47,816 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 04:09:47,816 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/sv-benchmarks/c/ldv-memsafety/memleaks_test18.i [2021-11-19 04:09:47,834 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/data/2b02e774e/7fe2091ef94f4da58f1608a723abe59a/FLAG9bca34b67 [2021-11-19 04:09:48,086 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/data/2b02e774e/7fe2091ef94f4da58f1608a723abe59a [2021-11-19 04:09:48,089 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 04:09:48,090 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-11-19 04:09:48,091 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 04:09:48,091 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 04:09:48,097 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 04:09:48,098 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:09:48" (1/1) ... [2021-11-19 04:09:48,099 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66cfcc2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:48, skipping insertion in model container [2021-11-19 04:09:48,100 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:09:48" (1/1) ... [2021-11-19 04:09:48,117 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 04:09:48,160 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 04:09:48,696 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 04:09:48,717 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 04:09:48,738 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 04:09:48,810 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 04:09:48,830 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 04:09:48,884 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 04:09:48,929 INFO L208 MainTranslator]: Completed translation [2021-11-19 04:09:48,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:48 WrapperNode [2021-11-19 04:09:48,930 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 04:09:48,931 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 04:09:48,931 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 04:09:48,931 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 04:09:48,942 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:48" (1/1) ... [2021-11-19 04:09:48,943 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:48" (1/1) ... [2021-11-19 04:09:48,981 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:48" (1/1) ... [2021-11-19 04:09:48,991 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:48" (1/1) ... [2021-11-19 04:09:49,028 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:48" (1/1) ... [2021-11-19 04:09:49,041 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:48" (1/1) ... [2021-11-19 04:09:49,048 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:48" (1/1) ... [2021-11-19 04:09:49,069 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 04:09:49,070 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 04:09:49,070 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 04:09:49,070 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 04:09:49,081 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:48" (1/1) ... [2021-11-19 04:09:49,087 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 04:09:49,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:09:49,119 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 04:09:49,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 04:09:49,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-11-19 04:09:49,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 04:09:49,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 04:09:49,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-11-19 04:09:49,167 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-11-19 04:09:49,167 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-11-19 04:09:49,168 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-11-19 04:09:49,168 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-11-19 04:09:49,168 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-11-19 04:09:49,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-11-19 04:09:49,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-11-19 04:09:49,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-19 04:09:49,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-19 04:09:49,169 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-11-19 04:09:49,169 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-11-19 04:09:49,169 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-11-19 04:09:49,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-11-19 04:09:49,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-11-19 04:09:49,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-11-19 04:09:49,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-11-19 04:09:49,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-11-19 04:09:49,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-11-19 04:09:49,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-11-19 04:09:49,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-11-19 04:09:49,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-11-19 04:09:49,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-19 04:09:49,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-11-19 04:09:49,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-11-19 04:09:49,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-11-19 04:09:49,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-11-19 04:09:49,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-11-19 04:09:49,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-11-19 04:09:49,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-11-19 04:09:49,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-11-19 04:09:49,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-11-19 04:09:49,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-11-19 04:09:49,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-11-19 04:09:49,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-11-19 04:09:49,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-11-19 04:09:49,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-11-19 04:09:49,175 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-11-19 04:09:49,175 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-11-19 04:09:49,175 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-11-19 04:09:49,175 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-11-19 04:09:49,176 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-19 04:09:49,176 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-19 04:09:49,176 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-19 04:09:49,176 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-11-19 04:09:49,176 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-11-19 04:09:49,177 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-11-19 04:09:49,177 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-11-19 04:09:49,177 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-11-19 04:09:49,177 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-11-19 04:09:49,178 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-11-19 04:09:49,178 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-11-19 04:09:49,178 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-11-19 04:09:49,178 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-11-19 04:09:49,178 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-11-19 04:09:49,179 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-11-19 04:09:49,179 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-11-19 04:09:49,179 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-11-19 04:09:49,179 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-11-19 04:09:49,180 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-11-19 04:09:49,180 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-11-19 04:09:49,180 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-11-19 04:09:49,180 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-11-19 04:09:49,180 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-11-19 04:09:49,181 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-11-19 04:09:49,181 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-11-19 04:09:49,181 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-11-19 04:09:49,181 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-11-19 04:09:49,181 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-11-19 04:09:49,182 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-11-19 04:09:49,182 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-11-19 04:09:49,182 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-11-19 04:09:49,182 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-11-19 04:09:49,182 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-11-19 04:09:49,183 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-11-19 04:09:49,183 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-11-19 04:09:49,183 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-11-19 04:09:49,183 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-11-19 04:09:49,183 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-11-19 04:09:49,183 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-11-19 04:09:49,184 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-11-19 04:09:49,184 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-11-19 04:09:49,184 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-11-19 04:09:49,184 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-11-19 04:09:49,184 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-11-19 04:09:49,184 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-11-19 04:09:49,185 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-11-19 04:09:49,185 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-11-19 04:09:49,185 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-11-19 04:09:49,185 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-11-19 04:09:49,185 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-11-19 04:09:49,185 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-11-19 04:09:49,186 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-11-19 04:09:49,186 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-11-19 04:09:49,186 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-11-19 04:09:49,186 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-11-19 04:09:49,186 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-11-19 04:09:49,186 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-11-19 04:09:49,187 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-11-19 04:09:49,187 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-11-19 04:09:49,187 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-11-19 04:09:49,187 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-11-19 04:09:49,187 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-11-19 04:09:49,187 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-11-19 04:09:49,188 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-11-19 04:09:49,188 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-11-19 04:09:49,188 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-11-19 04:09:49,188 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-11-19 04:09:49,188 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-11-19 04:09:49,188 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-11-19 04:09:49,188 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-11-19 04:09:49,189 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-11-19 04:09:49,189 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-11-19 04:09:49,189 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-11-19 04:09:49,189 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-11-19 04:09:49,189 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-11-19 04:09:49,189 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-11-19 04:09:49,190 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-11-19 04:09:49,190 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-11-19 04:09:49,190 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-11-19 04:09:49,190 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-11-19 04:09:49,190 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-11-19 04:09:49,191 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-11-19 04:09:49,191 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-11-19 04:09:49,191 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-11-19 04:09:49,191 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-11-19 04:09:49,191 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-11-19 04:09:49,191 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-11-19 04:09:49,192 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-11-19 04:09:49,192 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-11-19 04:09:49,192 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-11-19 04:09:49,192 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-11-19 04:09:49,192 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-11-19 04:09:49,192 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-11-19 04:09:49,192 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-11-19 04:09:49,193 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-11-19 04:09:49,193 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-11-19 04:09:49,193 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-11-19 04:09:49,193 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-11-19 04:09:49,193 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-11-19 04:09:49,193 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-11-19 04:09:49,194 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-11-19 04:09:49,194 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-11-19 04:09:49,194 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-11-19 04:09:49,194 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-11-19 04:09:49,194 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-11-19 04:09:49,194 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-11-19 04:09:49,195 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-11-19 04:09:49,195 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-11-19 04:09:49,195 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-11-19 04:09:49,195 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-11-19 04:09:49,195 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-19 04:09:49,195 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-11-19 04:09:49,195 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-11-19 04:09:49,196 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-11-19 04:09:49,196 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-11-19 04:09:49,196 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-11-19 04:09:49,196 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-19 04:09:49,196 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 04:09:49,196 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-19 04:09:49,197 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-19 04:09:49,197 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-11-19 04:09:49,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 04:09:49,197 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-11-19 04:09:49,197 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-11-19 04:09:49,197 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-11-19 04:09:49,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 04:09:49,198 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-11-19 04:09:49,198 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-11-19 04:09:49,198 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-11-19 04:09:49,198 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-11-19 04:09:49,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-19 04:09:49,199 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-11-19 04:09:49,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 04:09:49,199 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-11-19 04:09:49,199 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-11-19 04:09:49,199 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-11-19 04:09:49,199 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-19 04:09:49,199 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-11-19 04:09:49,200 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 04:09:49,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 04:09:49,200 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-11-19 04:09:49,200 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-11-19 04:09:49,200 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 04:09:49,201 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-11-19 04:09:49,201 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-11-19 04:09:49,201 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-11-19 04:09:49,201 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-11-19 04:09:49,201 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-11-19 04:09:49,201 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-11-19 04:09:49,202 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-11-19 04:09:49,202 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-11-19 04:09:49,202 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-11-19 04:09:49,202 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-11-19 04:09:49,202 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-11-19 04:09:49,202 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-19 04:09:49,203 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-11-19 04:09:49,203 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-11-19 04:09:49,203 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-11-19 04:09:49,203 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-11-19 04:09:49,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-11-19 04:09:49,203 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 04:09:49,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 04:09:49,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 04:09:49,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-11-19 04:09:49,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-19 04:09:49,204 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-19 04:09:49,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-19 04:09:49,204 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-19 04:09:49,542 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 04:09:49,545 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 04:09:49,845 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-19 04:09:50,238 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-19 04:09:50,624 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 04:09:50,644 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 04:09:50,644 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-19 04:09:50,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:09:50 BoogieIcfgContainer [2021-11-19 04:09:50,649 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 04:09:50,652 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 04:09:50,652 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 04:09:50,654 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 04:09:50,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:09:48" (1/3) ... [2021-11-19 04:09:50,656 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f52f5c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:09:50, skipping insertion in model container [2021-11-19 04:09:50,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:48" (2/3) ... [2021-11-19 04:09:50,657 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f52f5c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:09:50, skipping insertion in model container [2021-11-19 04:09:50,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:09:50" (3/3) ... [2021-11-19 04:09:50,658 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test18.i [2021-11-19 04:09:50,664 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 04:09:50,665 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 81 error locations. [2021-11-19 04:09:50,718 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 04:09:50,725 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 04:09:50,726 INFO L340 AbstractCegarLoop]: Starting to check reachability of 81 error locations. [2021-11-19 04:09:50,747 INFO L276 IsEmpty]: Start isEmpty. Operand has 117 states, 66 states have (on average 1.606060606060606) internal successors, (106), 94 states have internal predecessors, (106), 12 states have call successors, (12), 10 states have call predecessors, (12), 10 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2021-11-19 04:09:50,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-19 04:09:50,756 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:09:50,757 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:09:50,757 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-11-19 04:09:50,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:09:50,762 INFO L85 PathProgramCache]: Analyzing trace with hash 917895108, now seen corresponding path program 1 times [2021-11-19 04:09:50,773 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 04:09:50,773 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1061108741] [2021-11-19 04:09:50,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:09:50,774 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 04:09:50,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 04:09:50,777 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 04:09:50,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 04:09:50,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:09:50,974 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 04:09:50,980 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:09:51,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:09:51,101 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:09:51,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:09:51,208 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 04:09:51,208 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1061108741] [2021-11-19 04:09:51,209 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1061108741] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 04:09:51,209 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:09:51,215 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-19 04:09:51,217 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065947081] [2021-11-19 04:09:51,218 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 04:09:51,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 04:09:51,222 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 04:09:51,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 04:09:51,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-19 04:09:51,257 INFO L87 Difference]: Start difference. First operand has 117 states, 66 states have (on average 1.606060606060606) internal successors, (106), 94 states have internal predecessors, (106), 12 states have call successors, (12), 10 states have call predecessors, (12), 10 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-19 04:09:51,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:09:51,428 INFO L93 Difference]: Finished difference Result 78 states and 90 transitions. [2021-11-19 04:09:51,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 04:09:51,431 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 17 [2021-11-19 04:09:51,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:09:51,440 INFO L225 Difference]: With dead ends: 78 [2021-11-19 04:09:51,440 INFO L226 Difference]: Without dead ends: 75 [2021-11-19 04:09:51,442 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-19 04:09:51,450 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 30 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 04:09:51,452 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 167 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 04:09:51,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2021-11-19 04:09:51,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 48. [2021-11-19 04:09:51,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 28 states have (on average 1.5357142857142858) internal successors, (43), 38 states have internal predecessors, (43), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2021-11-19 04:09:51,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 54 transitions. [2021-11-19 04:09:51,490 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 54 transitions. Word has length 17 [2021-11-19 04:09:51,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:09:51,491 INFO L470 AbstractCegarLoop]: Abstraction has 48 states and 54 transitions. [2021-11-19 04:09:51,491 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-19 04:09:51,491 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 54 transitions. [2021-11-19 04:09:51,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-19 04:09:51,493 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:09:51,493 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:09:51,505 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 04:09:51,707 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 04:09:51,707 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-11-19 04:09:51,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:09:51,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1634261853, now seen corresponding path program 1 times [2021-11-19 04:09:51,708 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 04:09:51,708 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1823629719] [2021-11-19 04:09:51,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:09:51,708 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 04:09:51,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 04:09:51,709 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 04:09:51,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 04:09:51,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:09:51,870 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 04:09:51,872 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:09:51,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:09:51,941 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:09:52,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:09:52,052 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 04:09:52,052 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1823629719] [2021-11-19 04:09:52,053 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1823629719] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 04:09:52,053 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:09:52,053 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-19 04:09:52,053 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891865000] [2021-11-19 04:09:52,053 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 04:09:52,055 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 04:09:52,055 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 04:09:52,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 04:09:52,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 04:09:52,056 INFO L87 Difference]: Start difference. First operand 48 states and 54 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-19 04:09:52,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:09:52,149 INFO L93 Difference]: Finished difference Result 76 states and 86 transitions. [2021-11-19 04:09:52,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 04:09:52,150 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 17 [2021-11-19 04:09:52,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:09:52,152 INFO L225 Difference]: With dead ends: 76 [2021-11-19 04:09:52,152 INFO L226 Difference]: Without dead ends: 73 [2021-11-19 04:09:52,152 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 04:09:52,153 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 26 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 04:09:52,154 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 98 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 04:09:52,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-11-19 04:09:52,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 44. [2021-11-19 04:09:52,161 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) [2021-11-19 04:09:52,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 48 transitions. [2021-11-19 04:09:52,163 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 48 transitions. Word has length 17 [2021-11-19 04:09:52,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:09:52,164 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 48 transitions. [2021-11-19 04:09:52,164 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-19 04:09:52,164 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions. [2021-11-19 04:09:52,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-19 04:09:52,165 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:09:52,165 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:09:52,185 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 04:09:52,377 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 04:09:52,377 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)] === [2021-11-19 04:09:52,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:09:52,377 INFO L85 PathProgramCache]: Analyzing trace with hash -1661450729, now seen corresponding path program 1 times [2021-11-19 04:09:52,378 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 04:09:52,378 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1355730701] [2021-11-19 04:09:52,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:09:52,378 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 04:09:52,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 04:09:52,379 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 04:09:52,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 04:09:52,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:09:52,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 04:09:52,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:09:52,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:09:52,610 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:09:52,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:09:52,676 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 04:09:52,676 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1355730701] [2021-11-19 04:09:52,676 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1355730701] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 04:09:52,676 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:09:52,677 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-19 04:09:52,677 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477727070] [2021-11-19 04:09:52,677 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 04:09:52,678 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 04:09:52,678 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 04:09:52,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 04:09:52,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 04:09:52,679 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) [2021-11-19 04:09:52,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:09:52,766 INFO L93 Difference]: Finished difference Result 93 states and 101 transitions. [2021-11-19 04:09:52,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 04:09:52,767 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 [2021-11-19 04:09:52,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:09:52,768 INFO L225 Difference]: With dead ends: 93 [2021-11-19 04:09:52,768 INFO L226 Difference]: Without dead ends: 93 [2021-11-19 04:09:52,769 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2021-11-19 04:09:52,770 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 104 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 04:09:52,771 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 143 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 04:09:52,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2021-11-19 04:09:52,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 51. [2021-11-19 04:09:52,779 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) [2021-11-19 04:09:52,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 59 transitions. [2021-11-19 04:09:52,781 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 59 transitions. Word has length 18 [2021-11-19 04:09:52,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:09:52,781 INFO L470 AbstractCegarLoop]: Abstraction has 51 states and 59 transitions. [2021-11-19 04:09:52,781 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) [2021-11-19 04:09:52,782 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 59 transitions. [2021-11-19 04:09:52,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-19 04:09:52,783 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:09:52,783 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:09:52,800 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 04:09:52,996 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 04:09:52,996 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting entry_pointErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-11-19 04:09:52,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:09:52,997 INFO L85 PathProgramCache]: Analyzing trace with hash -2108901776, now seen corresponding path program 1 times [2021-11-19 04:09:52,998 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 04:09:52,998 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [314073987] [2021-11-19 04:09:52,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:09:52,998 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 04:09:52,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 04:09:52,999 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 04:09:53,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 04:09:53,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:09:53,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-19 04:09:53,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:09:53,199 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-19 04:09:53,316 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-19 04:09:53,317 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 26 [2021-11-19 04:09:53,356 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:09:53,357 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:09:53,634 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:09:53,634 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 04:09:53,634 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [314073987] [2021-11-19 04:09:53,635 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [314073987] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 04:09:53,635 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-19 04:09:53,635 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 7 [2021-11-19 04:09:53,635 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968595624] [2021-11-19 04:09:53,636 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-19 04:09:53,636 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 04:09:53,636 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 04:09:53,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 04:09:53,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-19 04:09:53,637 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) [2021-11-19 04:09:53,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:09:53,814 INFO L93 Difference]: Finished difference Result 76 states and 88 transitions. [2021-11-19 04:09:53,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 04:09:53,815 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 23 [2021-11-19 04:09:53,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:09:53,817 INFO L225 Difference]: With dead ends: 76 [2021-11-19 04:09:53,817 INFO L226 Difference]: Without dead ends: 76 [2021-11-19 04:09:53,817 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 [2021-11-19 04:09:53,818 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 22 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 30 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 04:09:53,819 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 162 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 75 Invalid, 0 Unknown, 30 Unchecked, 0.1s Time] [2021-11-19 04:09:53,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2021-11-19 04:09:53,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 70. [2021-11-19 04:09:53,828 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) [2021-11-19 04:09:53,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 85 transitions. [2021-11-19 04:09:53,829 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 85 transitions. Word has length 23 [2021-11-19 04:09:53,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:09:53,830 INFO L470 AbstractCegarLoop]: Abstraction has 70 states and 85 transitions. [2021-11-19 04:09:53,830 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-19 04:09:53,830 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 85 transitions. [2021-11-19 04:09:53,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-19 04:09:53,832 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:09:53,832 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:09:53,846 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 04:09:54,043 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 04:09:54,043 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting entry_pointErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-11-19 04:09:54,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:09:54,043 INFO L85 PathProgramCache]: Analyzing trace with hash -2108901775, now seen corresponding path program 1 times [2021-11-19 04:09:54,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 04:09:54,044 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1576181096] [2021-11-19 04:09:54,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:09:54,044 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 04:09:54,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 04:09:54,045 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 04:09:54,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 04:09:54,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:09:54,192 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-19 04:09:54,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:09:54,242 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-19 04:09:54,249 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-19 04:09:56,579 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-19 04:09:56,579 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2021-11-19 04:09:56,593 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-19 04:09:56,593 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 26 [2021-11-19 04:09:56,686 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:09:56,686 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:10:13,163 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 [2021-11-19 04:10:13,760 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 25 [2021-11-19 04:10:13,938 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:10:13,938 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 04:10:13,938 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1576181096] [2021-11-19 04:10:13,939 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1576181096] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 04:10:13,939 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-19 04:10:13,939 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2021-11-19 04:10:13,939 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904832147] [2021-11-19 04:10:13,939 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-19 04:10:13,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-19 04:10:13,940 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 04:10:13,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-19 04:10:13,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=325, Unknown=5, NotChecked=0, Total=380 [2021-11-19 04:10:13,941 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) [2021-11-19 04:10:25,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:10:25,650 INFO L93 Difference]: Finished difference Result 231 states and 279 transitions. [2021-11-19 04:10:25,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-19 04:10:25,652 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 [2021-11-19 04:10:25,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:10:25,653 INFO L225 Difference]: With dead ends: 231 [2021-11-19 04:10:25,654 INFO L226 Difference]: Without dead ends: 231 [2021-11-19 04:10:25,654 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 23.7s TimeCoverageRelationStatistics Valid=83, Invalid=508, Unknown=9, NotChecked=0, Total=600 [2021-11-19 04:10:25,655 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 260 mSDsluCounter, 576 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 631 SdHoareTripleChecker+Invalid, 861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 433 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-19 04:10:25,656 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [260 Valid, 631 Invalid, 861 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 388 Invalid, 0 Unknown, 433 Unchecked, 1.0s Time] [2021-11-19 04:10:25,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2021-11-19 04:10:25,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 100. [2021-11-19 04:10:25,668 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) [2021-11-19 04:10:25,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 133 transitions. [2021-11-19 04:10:25,670 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 133 transitions. Word has length 23 [2021-11-19 04:10:25,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:10:25,671 INFO L470 AbstractCegarLoop]: Abstraction has 100 states and 133 transitions. [2021-11-19 04:10:25,671 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) [2021-11-19 04:10:25,671 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 133 transitions. [2021-11-19 04:10:25,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-19 04:10:25,672 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:10:25,673 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:10:25,681 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 04:10:25,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 04:10:25,878 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting entry_pointErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-11-19 04:10:25,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:10:25,879 INFO L85 PathProgramCache]: Analyzing trace with hash 1680506895, now seen corresponding path program 1 times [2021-11-19 04:10:25,879 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 04:10:25,879 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1300133719] [2021-11-19 04:10:25,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:10:25,879 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 04:10:25,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 04:10:25,880 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 04:10:25,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 04:10:26,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:10:26,009 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-19 04:10:26,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:10:26,108 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:10:26,108 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:10:26,218 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-19 04:10:26,218 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 04:10:26,218 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1300133719] [2021-11-19 04:10:26,218 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1300133719] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 04:10:26,218 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 04:10:26,219 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2021-11-19 04:10:26,219 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282926077] [2021-11-19 04:10:26,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:10:26,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 04:10:26,219 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 04:10:26,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 04:10:26,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-19 04:10:26,220 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) [2021-11-19 04:10:26,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:10:26,269 INFO L93 Difference]: Finished difference Result 91 states and 119 transitions. [2021-11-19 04:10:26,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 04:10:26,270 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 23 [2021-11-19 04:10:26,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:10:26,271 INFO L225 Difference]: With dead ends: 91 [2021-11-19 04:10:26,271 INFO L226 Difference]: Without dead ends: 87 [2021-11-19 04:10:26,272 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-19 04:10:26,272 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 0 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 04:10:26,273 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 182 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 04:10:26,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2021-11-19 04:10:26,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2021-11-19 04:10:26,280 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) [2021-11-19 04:10:26,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 115 transitions. [2021-11-19 04:10:26,282 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 115 transitions. Word has length 23 [2021-11-19 04:10:26,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:10:26,282 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 115 transitions. [2021-11-19 04:10:26,283 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-19 04:10:26,283 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 115 transitions. [2021-11-19 04:10:26,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-19 04:10:26,284 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:10:26,284 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:10:26,301 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-19 04:10:26,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 04:10:26,496 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting entry_pointErr3REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-11-19 04:10:26,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:10:26,496 INFO L85 PathProgramCache]: Analyzing trace with hash 569916636, now seen corresponding path program 1 times [2021-11-19 04:10:26,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 04:10:26,496 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1913184550] [2021-11-19 04:10:26,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:10:26,497 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 04:10:26,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 04:10:26,497 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 04:10:26,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-19 04:10:26,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:10:26,630 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 04:10:26,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:10:26,714 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-19 04:10:26,715 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:10:26,791 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-19 04:10:26,791 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 04:10:26,791 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1913184550] [2021-11-19 04:10:26,791 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1913184550] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 04:10:26,792 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:10:26,792 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-19 04:10:26,792 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948027702] [2021-11-19 04:10:26,792 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 04:10:26,792 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 04:10:26,793 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 04:10:26,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 04:10:26,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-19 04:10:26,793 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) [2021-11-19 04:10:26,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:10:26,848 INFO L93 Difference]: Finished difference Result 129 states and 166 transitions. [2021-11-19 04:10:26,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 04:10:26,849 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 25 [2021-11-19 04:10:26,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:10:26,851 INFO L225 Difference]: With dead ends: 129 [2021-11-19 04:10:26,851 INFO L226 Difference]: Without dead ends: 129 [2021-11-19 04:10:26,851 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-19 04:10:26,852 INFO L933 BasicCegarLoop]: 67 mSDtfsCounter, 26 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 04:10:26,852 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 243 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 04:10:26,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2021-11-19 04:10:26,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 91. [2021-11-19 04:10:26,862 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) [2021-11-19 04:10:26,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 118 transitions. [2021-11-19 04:10:26,864 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 118 transitions. Word has length 25 [2021-11-19 04:10:26,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:10:26,864 INFO L470 AbstractCegarLoop]: Abstraction has 91 states and 118 transitions. [2021-11-19 04:10:26,864 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-19 04:10:26,864 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 118 transitions. [2021-11-19 04:10:26,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-19 04:10:26,870 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:10:26,870 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:10:26,880 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-11-19 04:10:27,074 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 04:10:27,074 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting entry_pointErr3REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-11-19 04:10:27,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:10:27,075 INFO L85 PathProgramCache]: Analyzing trace with hash -1982240325, now seen corresponding path program 1 times [2021-11-19 04:10:27,075 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 04:10:27,075 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [220027518] [2021-11-19 04:10:27,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:10:27,075 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 04:10:27,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 04:10:27,076 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 04:10:27,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-19 04:10:27,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:10:27,186 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 04:10:27,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:10:27,247 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-19 04:10:27,248 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:10:27,334 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-19 04:10:27,334 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 04:10:27,334 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [220027518] [2021-11-19 04:10:27,334 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [220027518] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 04:10:27,334 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:10:27,335 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-19 04:10:27,335 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830156038] [2021-11-19 04:10:27,335 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 04:10:27,335 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 04:10:27,335 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 04:10:27,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 04:10:27,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-19 04:10:27,336 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) [2021-11-19 04:10:27,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:10:27,406 INFO L93 Difference]: Finished difference Result 89 states and 108 transitions. [2021-11-19 04:10:27,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 04:10:27,407 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 [2021-11-19 04:10:27,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:10:27,408 INFO L225 Difference]: With dead ends: 89 [2021-11-19 04:10:27,408 INFO L226 Difference]: Without dead ends: 89 [2021-11-19 04:10:27,408 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-19 04:10:27,409 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 31 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 04:10:27,409 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 152 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 04:10:27,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2021-11-19 04:10:27,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 83. [2021-11-19 04:10:27,415 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) [2021-11-19 04:10:27,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 102 transitions. [2021-11-19 04:10:27,417 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 102 transitions. Word has length 25 [2021-11-19 04:10:27,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:10:27,417 INFO L470 AbstractCegarLoop]: Abstraction has 83 states and 102 transitions. [2021-11-19 04:10:27,417 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) [2021-11-19 04:10:27,417 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 102 transitions. [2021-11-19 04:10:27,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-19 04:10:27,418 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:10:27,419 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:10:27,431 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-11-19 04:10:27,626 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 04:10:27,626 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting entry_pointErr8ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-11-19 04:10:27,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:10:27,627 INFO L85 PathProgramCache]: Analyzing trace with hash -1319909042, now seen corresponding path program 1 times [2021-11-19 04:10:27,627 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 04:10:27,627 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1042193383] [2021-11-19 04:10:27,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:10:27,627 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 04:10:27,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 04:10:27,628 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 04:10:27,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-19 04:10:27,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:10:27,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 04:10:27,755 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:10:28,050 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:10:28,050 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:10:28,223 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-19 04:10:28,223 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 04:10:28,223 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1042193383] [2021-11-19 04:10:28,223 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1042193383] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 04:10:28,223 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-19 04:10:28,224 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4] total 9 [2021-11-19 04:10:28,224 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751367021] [2021-11-19 04:10:28,224 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-19 04:10:28,224 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-19 04:10:28,224 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 04:10:28,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-19 04:10:28,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-11-19 04:10:28,225 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) [2021-11-19 04:10:28,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:10:28,431 INFO L93 Difference]: Finished difference Result 82 states and 100 transitions. [2021-11-19 04:10:28,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 04:10:28,432 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.888888888888889) internal successors, (35), 8 states have internal predecessors, (35), 4 states have call successors, (9), 3 states have call predecessors, (9), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) Word has length 26 [2021-11-19 04:10:28,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:10:28,433 INFO L225 Difference]: With dead ends: 82 [2021-11-19 04:10:28,433 INFO L226 Difference]: Without dead ends: 82 [2021-11-19 04:10:28,433 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-11-19 04:10:28,434 INFO L933 BasicCegarLoop]: 33 mSDtfsCounter, 103 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 14 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 04:10:28,435 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 115 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 86 Invalid, 0 Unknown, 14 Unchecked, 0.2s Time] [2021-11-19 04:10:28,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2021-11-19 04:10:28,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2021-11-19 04:10:28,439 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) [2021-11-19 04:10:28,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 100 transitions. [2021-11-19 04:10:28,440 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 100 transitions. Word has length 26 [2021-11-19 04:10:28,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:10:28,440 INFO L470 AbstractCegarLoop]: Abstraction has 82 states and 100 transitions. [2021-11-19 04:10:28,440 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.888888888888889) internal successors, (35), 8 states have internal predecessors, (35), 4 states have call successors, (9), 3 states have call predecessors, (9), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2021-11-19 04:10:28,441 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 100 transitions. [2021-11-19 04:10:28,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-19 04:10:28,441 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:10:28,442 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:10:28,456 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-19 04:10:28,652 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 04:10:28,652 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-11-19 04:10:28,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:10:28,653 INFO L85 PathProgramCache]: Analyzing trace with hash -446583614, now seen corresponding path program 1 times [2021-11-19 04:10:28,653 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 04:10:28,653 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [512822088] [2021-11-19 04:10:28,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:10:28,653 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 04:10:28,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 04:10:28,654 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 04:10:28,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-19 04:10:28,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:10:28,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-19 04:10:28,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:10:28,793 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-19 04:10:33,134 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-19 04:10:33,134 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:10:37,374 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_8| (Array (_ BitVec 32) (_ BitVec 1)))) (or (= |v_old(#valid)_BEFORE_CALL_8| |c_#valid|) (exists ((v_entry_point_~array~0.base_29 (_ BitVec 32))) (and (not (= |v_old(#valid)_BEFORE_CALL_8| (store |c_old(#valid)| v_entry_point_~array~0.base_29 (_ bv0 1)))) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_old(#valid)| v_entry_point_~array~0.base_29)))))))))))))) is different from false [2021-11-19 04:10:37,794 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 04:10:37,794 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [512822088] [2021-11-19 04:10:37,795 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(= (store |v_old(#valid)_BEFORE_CALL_9| v_entry_point_~array~0.base_29 (_ bv0 1)) v_prenex_3)=(= (select v_prenex_3 v_antiDerIndex_entry0_1) (select (store |v_old(#valid)_BEFORE_CALL_9| v_entry_point_~array~0.base_29 (_ bv0 1)) v_antiDerIndex_entry0_1))} [2021-11-19 04:10:37,795 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1498939418] [2021-11-19 04:10:37,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:10:37,795 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 04:10:37,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/cvc4 [2021-11-19 04:10:37,796 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 04:10:37,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2021-11-19 04:10:38,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:10:38,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-19 04:10:38,012 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:10:38,019 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2021-11-19 04:10:38,221 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-19 04:10:38,221 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:10:48,867 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(= (store |v_old(#valid)_BEFORE_CALL_14| v_entry_point_~array~0.base_29 (_ bv0 1)) v_prenex_5)=(= (select v_prenex_5 v_antiDerIndex_entry0_2) (select (store |v_old(#valid)_BEFORE_CALL_14| v_entry_point_~array~0.base_29 (_ bv0 1)) v_antiDerIndex_entry0_2))} [2021-11-19 04:10:48,868 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [940724519] [2021-11-19 04:10:48,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:10:48,868 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:10:48,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:10:48,873 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 04:10:48,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-19 04:10:49,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:10:49,013 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-19 04:10:49,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:10:49,207 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-19 04:10:49,207 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:11:00,083 INFO L354 Elim1Store]: treesize reduction 16, result has 78.1 percent of original size [2021-11-19 04:11:00,083 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 72 treesize of output 119 [2021-11-19 04:11:00,631 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(not (= (store |old(#valid)| v_entry_point_~array~0.base_BEFORE_CALL_12 (_ bv0 1)) v_prenex_9))=(not (= (select v_prenex_9 v_antiDerIndex_entry0_4) (select (store |old(#valid)| v_entry_point_~array~0.base_BEFORE_CALL_12 (_ bv0 1)) v_antiDerIndex_entry0_4)))} [2021-11-19 04:11:00,631 INFO L186 FreeRefinementEngine]: Found 0 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:11:00,631 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-11-19 04:11:00,632 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-11-19 04:11:00,632 INFO L628 BasicCegarLoop]: Counterexample might be feasible [2021-11-19 04:11:00,640 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK (80 of 81 remaining) [2021-11-19 04:11:00,642 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION (79 of 81 remaining) [2021-11-19 04:11:00,642 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION (78 of 81 remaining) [2021-11-19 04:11:00,643 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION (77 of 81 remaining) [2021-11-19 04:11:00,643 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION (76 of 81 remaining) [2021-11-19 04:11:00,643 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION (75 of 81 remaining) [2021-11-19 04:11:00,643 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION (74 of 81 remaining) [2021-11-19 04:11:00,644 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION (73 of 81 remaining) [2021-11-19 04:11:00,644 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION (72 of 81 remaining) [2021-11-19 04:11:00,644 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION (71 of 81 remaining) [2021-11-19 04:11:00,644 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION (70 of 81 remaining) [2021-11-19 04:11:00,644 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION (69 of 81 remaining) [2021-11-19 04:11:00,644 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION (68 of 81 remaining) [2021-11-19 04:11:00,645 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION (67 of 81 remaining) [2021-11-19 04:11:00,645 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION (66 of 81 remaining) [2021-11-19 04:11:00,645 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION (65 of 81 remaining) [2021-11-19 04:11:00,645 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION (64 of 81 remaining) [2021-11-19 04:11:00,645 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION (63 of 81 remaining) [2021-11-19 04:11:00,646 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION (62 of 81 remaining) [2021-11-19 04:11:00,646 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION (61 of 81 remaining) [2021-11-19 04:11:00,646 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION (60 of 81 remaining) [2021-11-19 04:11:00,646 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION (59 of 81 remaining) [2021-11-19 04:11:00,646 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION (58 of 81 remaining) [2021-11-19 04:11:00,646 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION (57 of 81 remaining) [2021-11-19 04:11:00,647 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION (56 of 81 remaining) [2021-11-19 04:11:00,647 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION (55 of 81 remaining) [2021-11-19 04:11:00,648 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION (54 of 81 remaining) [2021-11-19 04:11:00,648 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION (53 of 81 remaining) [2021-11-19 04:11:00,648 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION (52 of 81 remaining) [2021-11-19 04:11:00,648 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION (51 of 81 remaining) [2021-11-19 04:11:00,648 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION (50 of 81 remaining) [2021-11-19 04:11:00,648 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION (49 of 81 remaining) [2021-11-19 04:11:00,649 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION (48 of 81 remaining) [2021-11-19 04:11:00,649 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION (47 of 81 remaining) [2021-11-19 04:11:00,649 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION (46 of 81 remaining) [2021-11-19 04:11:00,649 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION (45 of 81 remaining) [2021-11-19 04:11:00,649 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION (44 of 81 remaining) [2021-11-19 04:11:00,649 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION (43 of 81 remaining) [2021-11-19 04:11:00,650 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION (42 of 81 remaining) [2021-11-19 04:11:00,650 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION (41 of 81 remaining) [2021-11-19 04:11:00,650 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION (40 of 81 remaining) [2021-11-19 04:11:00,650 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION (39 of 81 remaining) [2021-11-19 04:11:00,650 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION (38 of 81 remaining) [2021-11-19 04:11:00,651 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE (37 of 81 remaining) [2021-11-19 04:11:00,651 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE (36 of 81 remaining) [2021-11-19 04:11:00,651 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE (35 of 81 remaining) [2021-11-19 04:11:00,651 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE (34 of 81 remaining) [2021-11-19 04:11:00,651 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE (33 of 81 remaining) [2021-11-19 04:11:00,651 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE (32 of 81 remaining) [2021-11-19 04:11:00,652 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION (31 of 81 remaining) [2021-11-19 04:11:00,652 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION (30 of 81 remaining) [2021-11-19 04:11:00,652 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION (29 of 81 remaining) [2021-11-19 04:11:00,652 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION (28 of 81 remaining) [2021-11-19 04:11:00,652 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION (27 of 81 remaining) [2021-11-19 04:11:00,653 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION (26 of 81 remaining) [2021-11-19 04:11:00,653 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION (25 of 81 remaining) [2021-11-19 04:11:00,653 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION (24 of 81 remaining) [2021-11-19 04:11:00,653 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE (23 of 81 remaining) [2021-11-19 04:11:00,653 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE (22 of 81 remaining) [2021-11-19 04:11:00,653 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE (21 of 81 remaining) [2021-11-19 04:11:00,654 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE (20 of 81 remaining) [2021-11-19 04:11:00,654 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE (19 of 81 remaining) [2021-11-19 04:11:00,654 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE (18 of 81 remaining) [2021-11-19 04:11:00,654 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION (17 of 81 remaining) [2021-11-19 04:11:00,654 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION (16 of 81 remaining) [2021-11-19 04:11:00,655 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION (15 of 81 remaining) [2021-11-19 04:11:00,655 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION (14 of 81 remaining) [2021-11-19 04:11:00,655 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION (13 of 81 remaining) [2021-11-19 04:11:00,655 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION (12 of 81 remaining) [2021-11-19 04:11:00,655 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION (11 of 81 remaining) [2021-11-19 04:11:00,656 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION (10 of 81 remaining) [2021-11-19 04:11:00,656 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr0REQUIRES_VIOLATION (9 of 81 remaining) [2021-11-19 04:11:00,656 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr1REQUIRES_VIOLATION (8 of 81 remaining) [2021-11-19 04:11:00,656 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr2REQUIRES_VIOLATION (7 of 81 remaining) [2021-11-19 04:11:00,656 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr3REQUIRES_VIOLATION (6 of 81 remaining) [2021-11-19 04:11:00,656 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE (5 of 81 remaining) [2021-11-19 04:11:00,657 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE (4 of 81 remaining) [2021-11-19 04:11:00,657 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE (3 of 81 remaining) [2021-11-19 04:11:00,658 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr7ASSERT_VIOLATIONMEMORY_FREE (2 of 81 remaining) [2021-11-19 04:11:00,658 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr8ASSERT_VIOLATIONMEMORY_FREE (1 of 81 remaining) [2021-11-19 04:11:00,658 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr9ASSERT_VIOLATIONMEMORY_FREE (0 of 81 remaining) [2021-11-19 04:11:00,694 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-11-19 04:11:00,876 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/cvc4 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0 [2021-11-19 04:11:01,081 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-19 04:11:01,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/cvc4 --incremental --print-success --lang smt,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 04:11:01,277 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:11:01,280 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-19 04:11:01,282 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-11-19 04:11:01,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 04:11:01 BoogieIcfgContainer [2021-11-19 04:11:01,291 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-19 04:11:01,292 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 04:11:01,292 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 04:11:01,292 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 04:11:01,293 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:09:50" (3/4) ... [2021-11-19 04:11:01,296 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-19 04:11:01,296 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 04:11:01,296 INFO L158 Benchmark]: Toolchain (without parser) took 73206.15ms. Allocated memory was 65.0MB in the beginning and 117.4MB in the end (delta: 52.4MB). Free memory was 43.1MB in the beginning and 45.6MB in the end (delta: -2.5MB). Peak memory consumption was 49.3MB. Max. memory is 16.1GB. [2021-11-19 04:11:01,297 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 65.0MB. Free memory was 45.2MB in the beginning and 45.2MB in the end (delta: 44.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 04:11:01,297 INFO L158 Benchmark]: CACSL2BoogieTranslator took 839.06ms. Allocated memory is still 65.0MB. Free memory was 42.9MB in the beginning and 29.0MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-19 04:11:01,298 INFO L158 Benchmark]: Boogie Preprocessor took 138.75ms. Allocated memory is still 65.0MB. Free memory was 29.0MB in the beginning and 43.8MB in the end (delta: -14.8MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. [2021-11-19 04:11:01,298 INFO L158 Benchmark]: RCFGBuilder took 1579.21ms. Allocated memory was 65.0MB in the beginning and 94.4MB in the end (delta: 29.4MB). Free memory was 43.6MB in the beginning and 68.9MB in the end (delta: -25.3MB). Peak memory consumption was 32.3MB. Max. memory is 16.1GB. [2021-11-19 04:11:01,299 INFO L158 Benchmark]: TraceAbstraction took 70639.92ms. Allocated memory was 94.4MB in the beginning and 117.4MB in the end (delta: 23.1MB). Free memory was 68.3MB in the beginning and 45.6MB in the end (delta: 22.7MB). Peak memory consumption was 66.7MB. Max. memory is 16.1GB. [2021-11-19 04:11:01,299 INFO L158 Benchmark]: Witness Printer took 3.88ms. Allocated memory is still 117.4MB. Free memory is still 45.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 04:11:01,306 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 65.0MB. Free memory was 45.2MB in the beginning and 45.2MB in the end (delta: 44.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 839.06ms. Allocated memory is still 65.0MB. Free memory was 42.9MB in the beginning and 29.0MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 138.75ms. Allocated memory is still 65.0MB. Free memory was 29.0MB in the beginning and 43.8MB in the end (delta: -14.8MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. * RCFGBuilder took 1579.21ms. Allocated memory was 65.0MB in the beginning and 94.4MB in the end (delta: 29.4MB). Free memory was 43.6MB in the beginning and 68.9MB in the end (delta: -25.3MB). Peak memory consumption was 32.3MB. Max. memory is 16.1GB. * TraceAbstraction took 70639.92ms. Allocated memory was 94.4MB in the beginning and 117.4MB in the end (delta: 23.1MB). Free memory was 68.3MB in the beginning and 45.6MB in the end (delta: 22.7MB). Peak memory consumption was 66.7MB. Max. memory is 16.1GB. * Witness Printer took 3.88ms. Allocated memory is still 117.4MB. Free memory is still 45.6MB. 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: 70.6s, OverallIterations: 10, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 12.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 609 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 602 mSDsluCounter, 1893 SdHoareTripleChecker+Invalid, 1.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 477 IncrementalHoareTripleChecker+Unchecked, 1447 mSDsCounter, 58 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 715 IncrementalHoareTripleChecker+Invalid, 1250 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 58 mSolverCounterUnsat, 446 mSDtfsCounter, 715 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 395 GetRequests, 328 SyntacticMatches, 8 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 24.1s 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, 30.8s InterpolantComputationTime, 227 NumberOfCodeBlocks, 227 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 405 ConstructedInterpolants, 30 QuantifiedInterpolants, 2121 SizeOfPredicates, 14 NumberOfNonLiveVariables, 926 ConjunctsInSsa, 73 ConjunctsInUnsatCore, 19 InterpolantComputations, 11 PerfectInterpolantSequences, 34/52 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-19 04:11:01,340 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2261ce7-5326-42e2-827d-c328f323c86c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN