./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test14_1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test14_1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg --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 a70da9b875e65dfce1d24d9896f28c8f06f4c5903acb198968ef49c3c899dd06 ................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test14_1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg --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 a70da9b875e65dfce1d24d9896f28c8f06f4c5903acb198968ef49c3c899dd06 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 09:54:23,438 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:54:23,440 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:54:23,493 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:54:23,494 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:54:23,500 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:54:23,502 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:54:23,507 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:54:23,511 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:54:23,518 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:54:23,520 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:54:23,522 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:54:23,523 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:54:23,527 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:54:23,530 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:54:23,536 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:54:23,538 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:54:23,540 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:54:23,543 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:54:23,552 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:54:23,555 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:54:23,557 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:54:23,561 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:54:23,562 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:54:23,573 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:54:23,574 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:54:23,575 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:54:23,577 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:54:23,578 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:54:23,580 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:54:23,582 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:54:23,583 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:54:23,586 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:54:23,587 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:54:23,589 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:54:23,590 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:54:23,591 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:54:23,591 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:54:23,592 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:54:23,593 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:54:23,594 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:54:23,595 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-10-28 09:54:23,649 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:54:23,650 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:54:23,651 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:54:23,658 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:54:23,660 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:54:23,660 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:54:23,661 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:54:23,661 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:54:23,661 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 09:54:23,661 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 09:54:23,663 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:54:23,663 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 09:54:23,663 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:54:23,664 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 09:54:23,664 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 09:54:23,664 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 09:54:23,664 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 09:54:23,665 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 09:54:23,665 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 09:54:23,665 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:54:23,666 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:54:23,666 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:54:23,666 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 09:54:23,666 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:54:23,667 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:54:23,667 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 09:54:23,667 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:54:23,668 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 09:54:23,668 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:54:23,670 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_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a70da9b875e65dfce1d24d9896f28c8f06f4c5903acb198968ef49c3c899dd06 [2021-10-28 09:54:24,023 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:54:24,052 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:54:24,055 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:54:24,057 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:54:24,058 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:54:24,059 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/ldv-memsafety/memleaks_test14_1.i [2021-10-28 09:54:24,138 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg/data/651cd2d31/e581b5fe6a6140dca4b59cc90ad04523/FLAG5557bb284 [2021-10-28 09:54:24,776 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:54:24,777 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/sv-benchmarks/c/ldv-memsafety/memleaks_test14_1.i [2021-10-28 09:54:24,798 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg/data/651cd2d31/e581b5fe6a6140dca4b59cc90ad04523/FLAG5557bb284 [2021-10-28 09:54:25,012 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg/data/651cd2d31/e581b5fe6a6140dca4b59cc90ad04523 [2021-10-28 09:54:25,015 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:54:25,016 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 09:54:25,022 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:54:25,022 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:54:25,026 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:54:25,027 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:54:25" (1/1) ... [2021-10-28 09:54:25,028 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3141793f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:54:25, skipping insertion in model container [2021-10-28 09:54:25,029 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:54:25" (1/1) ... [2021-10-28 09:54:25,038 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:54:25,089 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:54:25,563 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:54:25,583 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-10-28 09:54:25,584 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@28c1bd17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:54:25, skipping insertion in model container [2021-10-28 09:54:25,584 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:54:25,585 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-10-28 09:54:25,587 INFO L168 Benchmark]: Toolchain (without parser) took 569.57 ms. Allocated memory is still 113.2 MB. Free memory was 71.1 MB in the beginning and 84.2 MB in the end (delta: -13.1 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-28 09:54:25,588 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 113.2 MB. Free memory is still 89.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:54:25,590 INFO L168 Benchmark]: CACSL2BoogieTranslator took 562.57 ms. Allocated memory is still 113.2 MB. Free memory was 70.9 MB in the beginning and 84.2 MB in the end (delta: -13.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-28 09:54:25,592 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 113.2 MB. Free memory is still 89.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 562.57 ms. Allocated memory is still 113.2 MB. Free memory was 70.9 MB in the beginning and 84.2 MB in the end (delta: -13.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 09:54:28,362 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:54:28,366 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:54:28,437 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:54:28,438 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:54:28,443 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:54:28,446 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:54:28,454 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:54:28,458 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:54:28,465 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:54:28,467 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:54:28,469 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:54:28,470 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:54:28,473 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:54:28,476 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:54:28,482 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:54:28,484 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:54:28,490 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:54:28,492 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:54:28,502 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:54:28,505 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:54:28,506 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:54:28,508 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:54:28,510 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:54:28,514 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:54:28,514 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:54:28,515 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:54:28,516 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:54:28,517 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:54:28,519 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:54:28,519 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:54:28,520 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:54:28,521 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:54:28,523 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:54:28,524 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:54:28,524 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:54:28,539 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:54:28,540 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:54:28,540 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:54:28,543 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:54:28,544 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:54:28,545 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-28 09:54:28,592 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:54:28,592 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:54:28,593 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:54:28,593 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:54:28,595 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:54:28,596 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:54:28,596 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:54:28,596 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:54:28,597 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 09:54:28,597 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 09:54:28,598 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:54:28,599 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 09:54:28,599 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:54:28,599 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 09:54:28,600 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 09:54:28,600 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 09:54:28,600 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 09:54:28,601 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 09:54:28,601 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-28 09:54:28,601 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-28 09:54:28,602 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 09:54:28,602 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:54:28,602 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:54:28,603 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:54:28,603 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 09:54:28,603 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:54:28,604 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:54:28,604 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 09:54:28,605 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-28 09:54:28,605 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-28 09:54:28,605 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:54:28,605 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-28 09:54:28,606 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_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a70da9b875e65dfce1d24d9896f28c8f06f4c5903acb198968ef49c3c899dd06 [2021-10-28 09:54:29,089 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:54:29,114 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:54:29,118 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:54:29,119 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:54:29,120 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:54:29,121 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/ldv-memsafety/memleaks_test14_1.i [2021-10-28 09:54:29,206 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg/data/6975a58ed/3775b7721833457bb7593d338a514410/FLAG14b67e02d [2021-10-28 09:54:29,986 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:54:29,987 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/sv-benchmarks/c/ldv-memsafety/memleaks_test14_1.i [2021-10-28 09:54:30,009 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg/data/6975a58ed/3775b7721833457bb7593d338a514410/FLAG14b67e02d [2021-10-28 09:54:30,223 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg/data/6975a58ed/3775b7721833457bb7593d338a514410 [2021-10-28 09:54:30,226 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:54:30,228 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 09:54:30,229 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:54:30,230 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:54:30,246 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:54:30,247 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:54:30" (1/1) ... [2021-10-28 09:54:30,248 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@697adb5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:54:30, skipping insertion in model container [2021-10-28 09:54:30,248 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:54:30" (1/1) ... [2021-10-28 09:54:30,257 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:54:30,332 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:54:30,915 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:54:30,943 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-28 09:54:30,962 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:54:31,058 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:54:31,068 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:54:31,153 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:54:31,218 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:54:31,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:54:31 WrapperNode [2021-10-28 09:54:31,219 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:54:31,221 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:54:31,221 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:54:31,221 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:54:31,232 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:54:31" (1/1) ... [2021-10-28 09:54:31,232 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:54:31" (1/1) ... [2021-10-28 09:54:31,267 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:54:31" (1/1) ... [2021-10-28 09:54:31,283 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:54:31" (1/1) ... [2021-10-28 09:54:31,325 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:54:31" (1/1) ... [2021-10-28 09:54:31,333 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:54:31" (1/1) ... [2021-10-28 09:54:31,341 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:54:31" (1/1) ... [2021-10-28 09:54:31,368 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:54:31,369 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:54:31,369 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:54:31,369 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:54:31,371 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:54:31" (1/1) ... [2021-10-28 09:54:31,389 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:54:31,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:31,419 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:31,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 09:54:31,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-28 09:54:31,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:54:31,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-10-28 09:54:31,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-10-28 09:54:31,474 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-10-28 09:54:31,475 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-10-28 09:54:31,475 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-10-28 09:54:31,475 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-10-28 09:54:31,476 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-10-28 09:54:31,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-10-28 09:54:31,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-10-28 09:54:31,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-10-28 09:54:31,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-10-28 09:54:31,477 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-10-28 09:54:31,477 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-10-28 09:54:31,477 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-10-28 09:54:31,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-10-28 09:54:31,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-10-28 09:54:31,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-10-28 09:54:31,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-10-28 09:54:31,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-10-28 09:54:31,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-10-28 09:54:31,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-10-28 09:54:31,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-10-28 09:54:31,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-10-28 09:54:31,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-10-28 09:54:31,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-10-28 09:54:31,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-10-28 09:54:31,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-10-28 09:54:31,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-10-28 09:54:31,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-10-28 09:54:31,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-10-28 09:54:31,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-10-28 09:54:31,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-10-28 09:54:31,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-10-28 09:54:31,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-10-28 09:54:31,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-10-28 09:54:31,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-10-28 09:54:31,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-10-28 09:54:31,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-10-28 09:54:31,483 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-10-28 09:54:31,483 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-10-28 09:54:31,484 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_14 [2021-10-28 09:54:31,484 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-10-28 09:54:31,484 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-28 09:54:31,484 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-10-28 09:54:31,485 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-10-28 09:54:31,485 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-10-28 09:54:31,485 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-10-28 09:54:31,485 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-10-28 09:54:31,486 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-10-28 09:54:31,486 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-10-28 09:54:31,486 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-10-28 09:54:31,486 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-10-28 09:54:31,487 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-10-28 09:54:31,487 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-10-28 09:54:31,487 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-10-28 09:54:31,487 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-10-28 09:54:31,488 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-10-28 09:54:31,488 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-10-28 09:54:31,488 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-10-28 09:54:31,488 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-10-28 09:54:31,489 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-10-28 09:54:31,489 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-10-28 09:54:31,489 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-10-28 09:54:31,489 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-10-28 09:54:31,489 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-10-28 09:54:31,490 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-10-28 09:54:31,490 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-10-28 09:54:31,490 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-10-28 09:54:31,490 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-10-28 09:54:31,491 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-10-28 09:54:31,491 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-10-28 09:54:31,491 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-10-28 09:54:31,491 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-10-28 09:54:31,492 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-10-28 09:54:31,492 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-10-28 09:54:31,492 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-10-28 09:54:31,492 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-10-28 09:54:31,493 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-10-28 09:54:31,493 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-10-28 09:54:31,493 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-10-28 09:54:31,493 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-10-28 09:54:31,493 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-10-28 09:54:31,494 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-10-28 09:54:31,494 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-10-28 09:54:31,494 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-10-28 09:54:31,494 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-10-28 09:54:31,495 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-10-28 09:54:31,495 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-10-28 09:54:31,495 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-10-28 09:54:31,495 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-10-28 09:54:31,496 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-10-28 09:54:31,496 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-10-28 09:54:31,496 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-10-28 09:54:31,496 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-10-28 09:54:31,496 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-10-28 09:54:31,497 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-10-28 09:54:31,497 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-10-28 09:54:31,497 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-10-28 09:54:31,497 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-10-28 09:54:31,498 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-10-28 09:54:31,498 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-10-28 09:54:31,498 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-10-28 09:54:31,498 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-10-28 09:54:31,499 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-10-28 09:54:31,499 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-10-28 09:54:31,499 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-10-28 09:54:31,499 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-10-28 09:54:31,500 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-10-28 09:54:31,500 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-10-28 09:54:31,500 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-28 09:54:31,500 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-10-28 09:54:31,501 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-10-28 09:54:31,501 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-10-28 09:54:31,501 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-10-28 09:54:31,501 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-10-28 09:54:31,501 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-10-28 09:54:31,502 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-10-28 09:54:31,502 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-10-28 09:54:31,502 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-10-28 09:54:31,502 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-10-28 09:54:31,503 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-10-28 09:54:31,503 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-10-28 09:54:31,503 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-10-28 09:54:31,503 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-10-28 09:54:31,504 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-10-28 09:54:31,504 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-10-28 09:54:31,504 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-10-28 09:54:31,504 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-10-28 09:54:31,505 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-10-28 09:54:31,505 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-10-28 09:54:31,505 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-10-28 09:54:31,505 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-10-28 09:54:31,506 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-10-28 09:54:31,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-10-28 09:54:31,506 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-10-28 09:54:31,506 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-10-28 09:54:31,507 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-10-28 09:54:31,511 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-10-28 09:54:31,511 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-10-28 09:54:31,511 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-10-28 09:54:31,512 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-10-28 09:54:31,512 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-10-28 09:54:31,512 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-10-28 09:54:31,512 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-10-28 09:54:31,513 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-10-28 09:54:31,513 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-10-28 09:54:31,513 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-10-28 09:54:31,513 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-10-28 09:54:31,514 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-10-28 09:54:31,514 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-10-28 09:54:31,514 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-10-28 09:54:31,514 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-10-28 09:54:31,514 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-10-28 09:54:31,515 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-10-28 09:54:31,515 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-28 09:54:31,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-10-28 09:54:31,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-10-28 09:54:31,516 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-10-28 09:54:31,516 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-10-28 09:54:31,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-10-28 09:54:31,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-28 09:54:31,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-10-28 09:54:31,517 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-10-28 09:54:31,517 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-10-28 09:54:31,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-28 09:54:31,517 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-10-28 09:54:31,518 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-10-28 09:54:31,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-10-28 09:54:31,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-28 09:54:31,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-10-28 09:54:31,520 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-10-28 09:54:31,520 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-10-28 09:54:31,520 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-10-28 09:54:31,520 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-10-28 09:54:31,520 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-10-28 09:54:31,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 09:54:31,521 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-10-28 09:54:31,521 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-10-28 09:54:31,521 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-10-28 09:54:31,522 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-10-28 09:54:31,522 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-10-28 09:54:31,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-28 09:54:31,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-28 09:54:31,522 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-10-28 09:54:31,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-10-28 09:54:31,523 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-10-28 09:54:31,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-10-28 09:54:31,524 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-10-28 09:54:31,525 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-10-28 09:54:31,525 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-10-28 09:54:31,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-10-28 09:54:31,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-10-28 09:54:31,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-10-28 09:54:31,527 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-10-28 09:54:31,527 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-10-28 09:54:31,527 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-10-28 09:54:31,527 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-10-28 09:54:31,528 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-10-28 09:54:31,528 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-10-28 09:54:31,528 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-10-28 09:54:31,528 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_14 [2021-10-28 09:54:31,528 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-10-28 09:54:31,529 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 09:54:31,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-28 09:54:31,530 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-28 09:54:31,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-28 09:54:31,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:54:31,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-10-28 09:54:31,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-10-28 09:54:31,531 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-10-28 09:54:31,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-10-28 09:54:31,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-10-28 09:54:32,246 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 09:54:32,666 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 09:54:32,988 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:54:32,988 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-10-28 09:54:32,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:54:32 BoogieIcfgContainer [2021-10-28 09:54:32,992 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:54:32,994 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 09:54:32,994 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 09:54:32,997 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 09:54:32,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 09:54:30" (1/3) ... [2021-10-28 09:54:32,998 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@110e388e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:54:32, skipping insertion in model container [2021-10-28 09:54:32,999 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:54:31" (2/3) ... [2021-10-28 09:54:32,999 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@110e388e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:54:32, skipping insertion in model container [2021-10-28 09:54:32,999 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:54:32" (3/3) ... [2021-10-28 09:54:33,001 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test14_1.i [2021-10-28 09:54:33,007 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 09:54:33,007 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 71 error locations. [2021-10-28 09:54:33,060 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 09:54:33,068 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 [2021-10-28 09:54:33,080 INFO L340 AbstractCegarLoop]: Starting to check reachability of 71 error locations. [2021-10-28 09:54:33,107 INFO L276 IsEmpty]: Start isEmpty. Operand has 126 states, 68 states have (on average 1.5147058823529411) internal successors, (103), 97 states have internal predecessors, (103), 14 states have call successors, (14), 13 states have call predecessors, (14), 13 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2021-10-28 09:54:33,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-28 09:54:33,134 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:54:33,135 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:54:33,136 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_list_addErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 09:54:33,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:54:33,147 INFO L85 PathProgramCache]: Analyzing trace with hash 897974978, now seen corresponding path program 1 times [2021-10-28 09:54:33,162 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:54:33,163 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1358293861] [2021-10-28 09:54:33,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:54:33,165 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:54:33,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:54:33,170 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:54:33,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-28 09:54:33,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:54:33,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-28 09:54:33,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:54:33,571 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-28 09:54:33,789 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-10-28 09:54:33,791 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 19 treesize of output 24 [2021-10-28 09:54:33,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:54:33,923 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:54:34,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:54:34,384 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:54:34,385 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1358293861] [2021-10-28 09:54:34,386 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1358293861] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:54:34,386 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:54:34,393 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 7] imperfect sequences [] total 9 [2021-10-28 09:54:34,396 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650042002] [2021-10-28 09:54:34,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 09:54:34,403 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:54:34,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 09:54:34,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-10-28 09:54:34,428 INFO L87 Difference]: Start difference. First operand has 126 states, 68 states have (on average 1.5147058823529411) internal successors, (103), 97 states have internal predecessors, (103), 14 states have call successors, (14), 13 states have call predecessors, (14), 13 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 10 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 3 states have call successors, (7), 5 states have call predecessors, (7), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-28 09:54:35,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:54:35,478 INFO L93 Difference]: Finished difference Result 57 states and 60 transitions. [2021-10-28 09:54:35,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 09:54:35,480 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 3 states have call successors, (7), 5 states have call predecessors, (7), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 19 [2021-10-28 09:54:35,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:54:35,493 INFO L225 Difference]: With dead ends: 57 [2021-10-28 09:54:35,493 INFO L226 Difference]: Without dead ends: 54 [2021-10-28 09:54:35,498 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 21 SyntacticMatches, 8 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2021-10-28 09:54:35,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-10-28 09:54:35,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 46. [2021-10-28 09:54:35,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 33 states have internal predecessors, (34), 7 states have call successors, (7), 7 states have call predecessors, (7), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-10-28 09:54:35,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 47 transitions. [2021-10-28 09:54:35,560 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 47 transitions. Word has length 19 [2021-10-28 09:54:35,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:54:35,560 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 47 transitions. [2021-10-28 09:54:35,561 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 3 states have call successors, (7), 5 states have call predecessors, (7), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-28 09:54:35,561 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 47 transitions. [2021-10-28 09:54:35,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-28 09:54:35,562 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:54:35,562 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:54:35,582 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:35,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:54:35,778 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_list_addErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 09:54:35,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:54:35,779 INFO L85 PathProgramCache]: Analyzing trace with hash 897974979, now seen corresponding path program 1 times [2021-10-28 09:54:35,780 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:54:35,783 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [37239322] [2021-10-28 09:54:35,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:54:35,783 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:54:35,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:54:35,785 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:54:35,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-28 09:54:35,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:54:36,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-28 09:54:36,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:54:36,038 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-28 09:54:36,045 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-28 09:54:38,453 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-10-28 09:54:38,454 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 31 treesize of output 33 [2021-10-28 09:54:38,469 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-28 09:54:38,470 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 25 [2021-10-28 09:54:38,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:54:38,656 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:54:48,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:54:48,625 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:54:48,626 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [37239322] [2021-10-28 09:54:48,626 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [37239322] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:54:48,626 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:54:48,626 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 17 [2021-10-28 09:54:48,626 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860864423] [2021-10-28 09:54:48,628 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-10-28 09:54:48,628 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:54:48,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-28 09:54:48,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=260, Unknown=3, NotChecked=0, Total=306 [2021-10-28 09:54:48,630 INFO L87 Difference]: Start difference. First operand 46 states and 47 transitions. Second operand has 18 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 14 states have internal predecessors, (20), 7 states have call successors, (9), 7 states have call predecessors, (9), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-10-28 09:56:35,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:56:35,334 INFO L93 Difference]: Finished difference Result 59 states and 61 transitions. [2021-10-28 09:56:35,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-28 09:56:35,335 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 14 states have internal predecessors, (20), 7 states have call successors, (9), 7 states have call predecessors, (9), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 19 [2021-10-28 09:56:35,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:56:35,339 INFO L225 Difference]: With dead ends: 59 [2021-10-28 09:56:35,339 INFO L226 Difference]: Without dead ends: 59 [2021-10-28 09:56:35,340 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 23.7s TimeCoverageRelationStatistics Valid=118, Invalid=579, Unknown=5, NotChecked=0, Total=702 [2021-10-28 09:56:35,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2021-10-28 09:56:35,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 45. [2021-10-28 09:56:35,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 23 states have (on average 1.434782608695652) internal successors, (33), 32 states have internal predecessors, (33), 7 states have call successors, (7), 7 states have call predecessors, (7), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-10-28 09:56:35,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 46 transitions. [2021-10-28 09:56:35,349 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 46 transitions. Word has length 19 [2021-10-28 09:56:35,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:56:35,350 INFO L470 AbstractCegarLoop]: Abstraction has 45 states and 46 transitions. [2021-10-28 09:56:35,351 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 14 states have internal predecessors, (20), 7 states have call successors, (9), 7 states have call predecessors, (9), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-10-28 09:56:35,351 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 46 transitions. [2021-10-28 09:56:35,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-28 09:56:35,352 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:56:35,352 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:56:35,375 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-28 09:56:35,553 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:56:35,553 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __ldv_list_addErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 09:56:35,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:56:35,554 INFO L85 PathProgramCache]: Analyzing trace with hash -1778354730, now seen corresponding path program 1 times [2021-10-28 09:56:35,555 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:56:35,555 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1097632185] [2021-10-28 09:56:35,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:56:35,555 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:56:35,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:56:35,557 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:56:35,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-28 09:56:35,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:56:35,822 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-28 09:56:35,825 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:56:36,097 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2021-10-28 09:56:36,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:56:36,209 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:56:36,317 INFO L354 Elim1Store]: treesize reduction 5, result has 58.3 percent of original size [2021-10-28 09:56:36,317 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 21 treesize of output 20 [2021-10-28 09:56:36,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:56:36,411 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:56:36,412 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1097632185] [2021-10-28 09:56:36,412 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1097632185] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:56:36,412 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:56:36,412 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 9] imperfect sequences [] total 10 [2021-10-28 09:56:36,412 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249666187] [2021-10-28 09:56:36,413 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-28 09:56:36,413 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:56:36,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-28 09:56:36,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-10-28 09:56:36,414 INFO L87 Difference]: Start difference. First operand 45 states and 46 transitions. Second operand has 11 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 4 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-28 09:56:39,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:56:39,702 INFO L93 Difference]: Finished difference Result 51 states and 51 transitions. [2021-10-28 09:56:39,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-28 09:56:39,704 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 4 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 22 [2021-10-28 09:56:39,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:56:39,706 INFO L225 Difference]: With dead ends: 51 [2021-10-28 09:56:39,706 INFO L226 Difference]: Without dead ends: 51 [2021-10-28 09:56:39,707 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 31 SyntacticMatches, 3 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2021-10-28 09:56:39,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-10-28 09:56:39,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 44. [2021-10-28 09:56:39,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 23 states have (on average 1.391304347826087) internal successors, (32), 31 states have internal predecessors, (32), 7 states have call successors, (7), 7 states have call predecessors, (7), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-10-28 09:56:39,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 45 transitions. [2021-10-28 09:56:39,715 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 45 transitions. Word has length 22 [2021-10-28 09:56:39,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:56:39,716 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 45 transitions. [2021-10-28 09:56:39,716 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 4 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-28 09:56:39,716 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 45 transitions. [2021-10-28 09:56:39,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-28 09:56:39,717 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:56:39,718 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:56:39,747 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-28 09:56:39,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:56:39,936 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __ldv_list_addErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 09:56:39,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:56:39,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1778354729, now seen corresponding path program 1 times [2021-10-28 09:56:39,937 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:56:39,937 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [140859398] [2021-10-28 09:56:39,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:56:39,938 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:56:39,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:56:39,939 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:56:39,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-28 09:56:40,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:56:40,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 38 conjunts are in the unsatisfiable core [2021-10-28 09:56:40,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:56:40,270 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-28 09:56:40,295 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-28 09:56:40,537 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 32 treesize of output 30 [2021-10-28 09:56:40,546 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 20 treesize of output 18 [2021-10-28 09:56:42,885 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-10-28 09:56:42,885 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 34 treesize of output 36 [2021-10-28 09:56:42,908 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-28 09:56:42,908 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 28 [2021-10-28 09:56:43,310 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 26 [2021-10-28 09:56:43,317 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2021-10-28 09:56:43,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:56:43,496 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:56:56,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:56:56,797 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:56:56,797 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [140859398] [2021-10-28 09:56:56,797 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [140859398] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:56:56,797 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:56:56,798 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 23 [2021-10-28 09:56:56,798 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094060512] [2021-10-28 09:56:56,799 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-10-28 09:56:56,799 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:56:56,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-10-28 09:56:56,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=490, Unknown=4, NotChecked=0, Total=552 [2021-10-28 09:56:56,801 INFO L87 Difference]: Start difference. First operand 44 states and 45 transitions. Second operand has 24 states, 17 states have (on average 1.411764705882353) internal successors, (24), 18 states have internal predecessors, (24), 9 states have call successors, (11), 9 states have call predecessors, (11), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-10-28 09:57:51,519 WARN L207 SmtUtils]: Spent 6.82 s on a formula simplification that was a NOOP. DAG size: 74 [2021-10-28 10:00:49,305 WARN L207 SmtUtils]: Spent 6.13 s on a formula simplification that was a NOOP. DAG size: 67 [2021-10-28 10:01:54,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 10:01:54,823 INFO L93 Difference]: Finished difference Result 55 states and 58 transitions. [2021-10-28 10:01:54,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-28 10:01:54,839 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 17 states have (on average 1.411764705882353) internal successors, (24), 18 states have internal predecessors, (24), 9 states have call successors, (11), 9 states have call predecessors, (11), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 22 [2021-10-28 10:01:54,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 10:01:54,840 INFO L225 Difference]: With dead ends: 55 [2021-10-28 10:01:54,841 INFO L226 Difference]: Without dead ends: 55 [2021-10-28 10:01:54,841 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 104.8s TimeCoverageRelationStatistics Valid=168, Invalid=1129, Unknown=35, NotChecked=0, Total=1332 [2021-10-28 10:01:54,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2021-10-28 10:01:54,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 43. [2021-10-28 10:01:54,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 30 states have internal predecessors, (31), 7 states have call successors, (7), 7 states have call predecessors, (7), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-10-28 10:01:54,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 44 transitions. [2021-10-28 10:01:54,848 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 44 transitions. Word has length 22 [2021-10-28 10:01:54,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 10:01:54,849 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 44 transitions. [2021-10-28 10:01:54,849 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 17 states have (on average 1.411764705882353) internal successors, (24), 18 states have internal predecessors, (24), 9 states have call successors, (11), 9 states have call predecessors, (11), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-10-28 10:01:54,850 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 44 transitions. [2021-10-28 10:01:54,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-28 10:01:54,851 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 10:01:54,851 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 10:01:54,865 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-28 10:01:55,053 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 10:01:55,053 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __ldv_list_addErr2REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 10:01:55,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 10:01:55,054 INFO L85 PathProgramCache]: Analyzing trace with hash 705578287, now seen corresponding path program 1 times [2021-10-28 10:01:55,054 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 10:01:55,055 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1171044702] [2021-10-28 10:01:55,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 10:01:55,055 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 10:01:55,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 10:01:55,059 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 10:01:55,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-28 10:01:55,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 10:01:55,326 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 10:01:55,327 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 10:01:55,360 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-28 10:01:55,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 10:01:55,539 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 10:01:55,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 10:01:55,757 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 10:01:55,758 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1171044702] [2021-10-28 10:01:55,758 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1171044702] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 10:01:55,758 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 10:01:55,758 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2021-10-28 10:01:55,759 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609429186] [2021-10-28 10:01:55,759 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 10:01:55,759 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 10:01:55,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 10:01:55,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-10-28 10:01:55,761 INFO L87 Difference]: Start difference. First operand 43 states and 44 transitions. Second operand has 9 states, 8 states have (on average 1.75) internal successors, (14), 6 states have internal predecessors, (14), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 10:01:56,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 10:01:56,323 INFO L93 Difference]: Finished difference Result 66 states and 68 transitions. [2021-10-28 10:01:56,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 10:01:56,324 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.75) internal successors, (14), 6 states have internal predecessors, (14), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 23 [2021-10-28 10:01:56,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 10:01:56,326 INFO L225 Difference]: With dead ends: 66 [2021-10-28 10:01:56,326 INFO L226 Difference]: Without dead ends: 66 [2021-10-28 10:01:56,327 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 32 SyntacticMatches, 6 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-10-28 10:01:56,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2021-10-28 10:01:56,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 60. [2021-10-28 10:01:56,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 36 states have (on average 1.3333333333333333) internal successors, (48), 43 states have internal predecessors, (48), 9 states have call successors, (9), 9 states have call predecessors, (9), 9 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2021-10-28 10:01:56,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 66 transitions. [2021-10-28 10:01:56,337 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 66 transitions. Word has length 23 [2021-10-28 10:01:56,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 10:01:56,338 INFO L470 AbstractCegarLoop]: Abstraction has 60 states and 66 transitions. [2021-10-28 10:01:56,338 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.75) internal successors, (14), 6 states have internal predecessors, (14), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 10:01:56,338 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 66 transitions. [2021-10-28 10:01:56,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-28 10:01:56,340 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 10:01:56,340 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 10:01:56,355 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-28 10:01:56,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 10:01:56,547 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __ldv_list_addErr3REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 10:01:56,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 10:01:56,548 INFO L85 PathProgramCache]: Analyzing trace with hash 705578288, now seen corresponding path program 1 times [2021-10-28 10:01:56,548 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 10:01:56,548 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [971253435] [2021-10-28 10:01:56,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 10:01:56,548 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 10:01:56,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 10:01:56,550 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 10:01:56,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-28 10:01:56,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 10:01:56,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-28 10:01:56,844 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 10:01:56,907 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-28 10:01:57,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 10:01:57,249 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 10:01:58,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 10:01:58,625 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 10:01:58,626 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [971253435] [2021-10-28 10:01:58,626 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [971253435] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 10:01:58,626 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 10:01:58,626 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 17 [2021-10-28 10:01:58,626 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230313020] [2021-10-28 10:01:58,627 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-10-28 10:01:58,627 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 10:01:58,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-28 10:01:58,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2021-10-28 10:01:58,628 INFO L87 Difference]: Start difference. First operand 60 states and 66 transitions. Second operand has 18 states, 17 states have (on average 1.411764705882353) internal successors, (24), 12 states have internal predecessors, (24), 5 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 10:02:00,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 10:02:00,034 INFO L93 Difference]: Finished difference Result 64 states and 66 transitions. [2021-10-28 10:02:00,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 10:02:00,035 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 1.411764705882353) internal successors, (24), 12 states have internal predecessors, (24), 5 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 23 [2021-10-28 10:02:00,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 10:02:00,037 INFO L225 Difference]: With dead ends: 64 [2021-10-28 10:02:00,037 INFO L226 Difference]: Without dead ends: 64 [2021-10-28 10:02:00,038 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=59, Invalid=361, Unknown=0, NotChecked=0, Total=420 [2021-10-28 10:02:00,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-10-28 10:02:00,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 60. [2021-10-28 10:02:00,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 36 states have (on average 1.2777777777777777) internal successors, (46), 43 states have internal predecessors, (46), 9 states have call successors, (9), 9 states have call predecessors, (9), 9 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2021-10-28 10:02:00,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 64 transitions. [2021-10-28 10:02:00,048 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 64 transitions. Word has length 23 [2021-10-28 10:02:00,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 10:02:00,049 INFO L470 AbstractCegarLoop]: Abstraction has 60 states and 64 transitions. [2021-10-28 10:02:00,049 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 1.411764705882353) internal successors, (24), 12 states have internal predecessors, (24), 5 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 10:02:00,049 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 64 transitions. [2021-10-28 10:02:00,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-28 10:02:00,050 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 10:02:00,051 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 10:02:00,065 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-28 10:02:00,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 10:02:00,259 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __ldv_list_addErr2REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 10:02:00,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 10:02:00,260 INFO L85 PathProgramCache]: Analyzing trace with hash 834661006, now seen corresponding path program 1 times [2021-10-28 10:02:00,260 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 10:02:00,260 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1482172316] [2021-10-28 10:02:00,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 10:02:00,261 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 10:02:00,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 10:02:00,261 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 10:02:00,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-28 10:02:00,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 10:02:00,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 10:02:00,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 10:02:00,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 10:02:00,671 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 10:02:00,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 10:02:00,835 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 10:02:00,835 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1482172316] [2021-10-28 10:02:00,835 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1482172316] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 10:02:00,836 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 10:02:00,836 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-28 10:02:00,836 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408031245] [2021-10-28 10:02:00,836 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 10:02:00,836 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 10:02:00,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 10:02:00,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 10:02:00,838 INFO L87 Difference]: Start difference. First operand 60 states and 64 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 10:02:00,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 10:02:00,869 INFO L93 Difference]: Finished difference Result 45 states and 46 transitions. [2021-10-28 10:02:00,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 10:02:00,870 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 23 [2021-10-28 10:02:00,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 10:02:00,871 INFO L225 Difference]: With dead ends: 45 [2021-10-28 10:02:00,871 INFO L226 Difference]: Without dead ends: 45 [2021-10-28 10:02:00,872 INFO L786 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 [2021-10-28 10:02:00,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-10-28 10:02:00,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 43. [2021-10-28 10:02:00,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 26 states have (on average 1.1538461538461537) internal successors, (30), 29 states have internal predecessors, (30), 7 states have call successors, (7), 7 states have call predecessors, (7), 7 states have return successors, (7), 7 states have call predecessors, (7), 6 states have call successors, (7) [2021-10-28 10:02:00,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 44 transitions. [2021-10-28 10:02:00,877 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 44 transitions. Word has length 23 [2021-10-28 10:02:00,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 10:02:00,878 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 44 transitions. [2021-10-28 10:02:00,878 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 10:02:00,878 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 44 transitions. [2021-10-28 10:02:00,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-28 10:02:00,879 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 10:02:00,880 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 10:02:00,894 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-10-28 10:02:01,080 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 10:02:01,081 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 10:02:01,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 10:02:01,081 INFO L85 PathProgramCache]: Analyzing trace with hash -1497151, now seen corresponding path program 1 times [2021-10-28 10:02:01,081 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 10:02:01,081 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [705813803] [2021-10-28 10:02:01,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 10:02:01,082 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 10:02:01,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 10:02:01,082 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 10:02:01,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-28 10:02:01,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 10:02:01,427 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 10:02:01,429 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 10:02:01,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 10:02:01,530 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 10:02:01,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 10:02:01,743 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 10:02:01,743 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [705813803] [2021-10-28 10:02:01,743 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [705813803] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 10:02:01,744 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 10:02:01,744 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-28 10:02:01,744 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849865123] [2021-10-28 10:02:01,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 10:02:01,744 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 10:02:01,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 10:02:01,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 10:02:01,745 INFO L87 Difference]: Start difference. First operand 43 states and 44 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 1 states have call successors, (4) [2021-10-28 10:02:01,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 10:02:01,773 INFO L93 Difference]: Finished difference Result 45 states and 45 transitions. [2021-10-28 10:02:01,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 10:02:01,774 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 1 states have call successors, (4) Word has length 22 [2021-10-28 10:02:01,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 10:02:01,775 INFO L225 Difference]: With dead ends: 45 [2021-10-28 10:02:01,775 INFO L226 Difference]: Without dead ends: 45 [2021-10-28 10:02:01,775 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 10:02:01,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-10-28 10:02:01,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 43. [2021-10-28 10:02:01,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 26 states have (on average 1.1153846153846154) internal successors, (29), 29 states have internal predecessors, (29), 7 states have call successors, (7), 7 states have call predecessors, (7), 7 states have return successors, (7), 7 states have call predecessors, (7), 6 states have call successors, (7) [2021-10-28 10:02:01,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 43 transitions. [2021-10-28 10:02:01,789 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 43 transitions. Word has length 22 [2021-10-28 10:02:01,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 10:02:01,790 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 43 transitions. [2021-10-28 10:02:01,790 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 1 states have call successors, (4) [2021-10-28 10:02:01,790 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 43 transitions. [2021-10-28 10:02:01,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-28 10:02:01,792 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 10:02:01,793 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 10:02:01,811 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-28 10:02:01,993 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 10:02:01,993 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 10:02:01,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 10:02:01,994 INFO L85 PathProgramCache]: Analyzing trace with hash -1798448510, now seen corresponding path program 1 times [2021-10-28 10:02:01,994 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 10:02:01,994 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1048592995] [2021-10-28 10:02:01,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 10:02:01,995 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 10:02:01,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 10:02:01,995 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 10:02:01,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-28 10:02:02,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 10:02:02,256 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-28 10:02:02,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 10:02:02,308 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-10-28 10:02:02,308 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2021-10-28 10:02:06,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 10:02:06,850 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 10:02:17,548 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 10:02:17,548 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1048592995] [2021-10-28 10:02:17,549 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(= (store |v_old(#valid)_BEFORE_CALL_5| |v_entry_point_~#list_14~0.base_20| (_ bv0 1)) v_prenex_3)=(= (select (store |v_old(#valid)_BEFORE_CALL_5| |v_entry_point_~#list_14~0.base_20| (_ bv0 1)) v_antiDerIndex_entry0_1) (select v_prenex_3 v_antiDerIndex_entry0_1))} [2021-10-28 10:02:17,549 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1100091597] [2021-10-28 10:02:17,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 10:02:17,549 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-28 10:02:17,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg/cvc4 [2021-10-28 10:02:17,551 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-28 10:02:17,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2021-10-28 10:02:18,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 10:02:18,017 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-28 10:02:18,018 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 10:02:18,061 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-10-28 10:02:18,062 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 28 [2021-10-28 10:02:18,290 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2021-10-28 10:02:22,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 10:02:22,568 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 10:02:22,736 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2021-10-28 10:02:33,518 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(= (store |v_old(#valid)_BEFORE_CALL_10| |v_entry_point_~#list_14~0.base_20| (_ bv0 1)) v_prenex_7)=(= (select (store |v_old(#valid)_BEFORE_CALL_10| |v_entry_point_~#list_14~0.base_20| (_ bv0 1)) v_antiDerIndex_entry0_2) (select v_prenex_7 v_antiDerIndex_entry0_2))} [2021-10-28 10:02:33,518 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1875767972] [2021-10-28 10:02:33,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 10:02:33,519 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 10:02:33,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 10:02:33,524 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 10:02:33,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-10-28 10:02:33,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 10:02:33,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-28 10:02:33,887 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 10:02:38,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 10:02:38,109 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 10:02:42,330 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_14| (Array (_ BitVec 32) (_ BitVec 1)))) (or (= |v_old(#valid)_BEFORE_CALL_14| |c_#valid|) (exists ((|v_entry_point_~#list_14~0.base_20| (_ BitVec 32))) (and (not (= |v_old(#valid)_BEFORE_CALL_14| (store |c_old(#valid)| |v_entry_point_~#list_14~0.base_20| (_ bv0 1)))) (= (_ bv0 1) (select |c_old(#valid)| |v_entry_point_~#list_14~0.base_20|)))))) is different from false [2021-10-28 10:02:42,426 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_14| (Array (_ BitVec 32) (_ BitVec 1)))) (or (= (store |c_#valid| |c_entry_point_~#list_14~0.base| (_ bv0 1)) |v_old(#valid)_BEFORE_CALL_14|) (exists ((|v_entry_point_~#list_14~0.base_20| (_ BitVec 32))) (and (not (= |v_old(#valid)_BEFORE_CALL_14| (store |c_old(#valid)| |v_entry_point_~#list_14~0.base_20| (_ bv0 1)))) (= (_ bv0 1) (select |c_old(#valid)| |v_entry_point_~#list_14~0.base_20|)))))) is different from false [2021-10-28 10:02:42,631 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(= (store |v_old(#valid)_BEFORE_CALL_15| |v_entry_point_~#list_14~0.base_20| (_ bv0 1)) v_prenex_9)=(= (select v_prenex_9 v_antiDerIndex_entry0_3) (select (store |v_old(#valid)_BEFORE_CALL_15| |v_entry_point_~#list_14~0.base_20| (_ bv0 1)) v_antiDerIndex_entry0_3))} [2021-10-28 10:02:42,631 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-10-28 10:02:42,631 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-10-28 10:02:42,631 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-10-28 10:02:42,631 INFO L627 BasicCegarLoop]: Counterexample might be feasible [2021-10-28 10:02:42,639 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-10-28 10:02:42,642 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION [2021-10-28 10:02:42,642 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION [2021-10-28 10:02:42,642 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION [2021-10-28 10:02:42,642 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION [2021-10-28 10:02:42,642 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION [2021-10-28 10:02:42,643 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION [2021-10-28 10:02:42,643 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION [2021-10-28 10:02:42,643 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION [2021-10-28 10:02:42,643 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION [2021-10-28 10:02:42,644 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION [2021-10-28 10:02:42,644 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION [2021-10-28 10:02:42,644 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION [2021-10-28 10:02:42,644 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION [2021-10-28 10:02:42,645 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION [2021-10-28 10:02:42,645 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION [2021-10-28 10:02:42,645 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION [2021-10-28 10:02:42,645 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION [2021-10-28 10:02:42,645 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION [2021-10-28 10:02:42,646 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION [2021-10-28 10:02:42,646 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION [2021-10-28 10:02:42,646 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION [2021-10-28 10:02:42,646 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION [2021-10-28 10:02:42,646 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION [2021-10-28 10:02:42,647 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION [2021-10-28 10:02:42,647 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION [2021-10-28 10:02:42,647 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION [2021-10-28 10:02:42,647 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION [2021-10-28 10:02:42,648 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION [2021-10-28 10:02:42,648 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION [2021-10-28 10:02:42,648 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION [2021-10-28 10:02:42,648 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION [2021-10-28 10:02:42,648 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION [2021-10-28 10:02:42,649 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION [2021-10-28 10:02:42,649 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION [2021-10-28 10:02:42,649 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION [2021-10-28 10:02:42,649 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION [2021-10-28 10:02:42,650 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION [2021-10-28 10:02:42,650 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION [2021-10-28 10:02:42,650 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION [2021-10-28 10:02:42,650 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION [2021-10-28 10:02:42,650 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION [2021-10-28 10:02:42,651 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION [2021-10-28 10:02:42,651 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 10:02:42,651 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 10:02:42,651 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 10:02:42,652 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 10:02:42,652 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 10:02:42,652 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 10:02:42,652 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION [2021-10-28 10:02:42,653 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION [2021-10-28 10:02:42,653 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION [2021-10-28 10:02:42,653 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION [2021-10-28 10:02:42,653 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION [2021-10-28 10:02:42,653 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION [2021-10-28 10:02:42,654 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION [2021-10-28 10:02:42,654 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION [2021-10-28 10:02:42,654 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 10:02:42,654 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 10:02:42,655 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 10:02:42,655 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 10:02:42,655 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 10:02:42,655 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 10:02:42,655 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION [2021-10-28 10:02:42,656 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION [2021-10-28 10:02:42,656 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION [2021-10-28 10:02:42,656 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION [2021-10-28 10:02:42,656 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION [2021-10-28 10:02:42,657 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION [2021-10-28 10:02:42,657 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION [2021-10-28 10:02:42,657 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION [2021-10-28 10:02:42,671 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-28 10:02:42,913 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-10-28 10:02:43,088 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2021-10-28 10:02:43,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg/cvc4 --incremental --print-success --lang smt [2021-10-28 10:02:43,283 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 10:02:43,288 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 10:02:43,291 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-10-28 10:02:43,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 10:02:43 BoogieIcfgContainer [2021-10-28 10:02:43,305 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 10:02:43,306 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 10:02:43,306 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 10:02:43,306 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 10:02:43,307 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:54:32" (3/4) ... [2021-10-28 10:02:43,311 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 10:02:43,311 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 10:02:43,312 INFO L168 Benchmark]: Toolchain (without parser) took 493084.58 ms. Allocated memory was 60.8 MB in the beginning and 94.4 MB in the end (delta: 33.6 MB). Free memory was 39.1 MB in the beginning and 57.0 MB in the end (delta: -17.9 MB). Peak memory consumption was 15.3 MB. Max. memory is 16.1 GB. [2021-10-28 10:02:43,313 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 60.8 MB. Free memory is still 41.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 10:02:43,313 INFO L168 Benchmark]: CACSL2BoogieTranslator took 990.53 ms. Allocated memory is still 60.8 MB. Free memory was 38.9 MB in the beginning and 26.6 MB in the end (delta: 12.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 10:02:43,314 INFO L168 Benchmark]: Boogie Preprocessor took 147.33 ms. Allocated memory was 60.8 MB in the beginning and 77.6 MB in the end (delta: 16.8 MB). Free memory was 26.6 MB in the beginning and 59.4 MB in the end (delta: -32.8 MB). Peak memory consumption was 10.9 MB. Max. memory is 16.1 GB. [2021-10-28 10:02:43,315 INFO L168 Benchmark]: RCFGBuilder took 1622.87 ms. Allocated memory is still 77.6 MB. Free memory was 59.0 MB in the beginning and 35.6 MB in the end (delta: 23.4 MB). Peak memory consumption was 28.0 MB. Max. memory is 16.1 GB. [2021-10-28 10:02:43,316 INFO L168 Benchmark]: TraceAbstraction took 490311.82 ms. Allocated memory was 77.6 MB in the beginning and 94.4 MB in the end (delta: 16.8 MB). Free memory was 35.2 MB in the beginning and 57.9 MB in the end (delta: -22.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 16.1 GB. [2021-10-28 10:02:43,316 INFO L168 Benchmark]: Witness Printer took 5.55 ms. Allocated memory is still 94.4 MB. Free memory was 57.9 MB in the beginning and 57.0 MB in the end (delta: 830.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 10:02:43,322 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 60.8 MB. Free memory is still 41.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 990.53 ms. Allocated memory is still 60.8 MB. Free memory was 38.9 MB in the beginning and 26.6 MB in the end (delta: 12.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 147.33 ms. Allocated memory was 60.8 MB in the beginning and 77.6 MB in the end (delta: 16.8 MB). Free memory was 26.6 MB in the beginning and 59.4 MB in the end (delta: -32.8 MB). Peak memory consumption was 10.9 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1622.87 ms. Allocated memory is still 77.6 MB. Free memory was 59.0 MB in the beginning and 35.6 MB in the end (delta: 23.4 MB). Peak memory consumption was 28.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 490311.82 ms. Allocated memory was 77.6 MB in the beginning and 94.4 MB in the end (delta: 16.8 MB). Free memory was 35.2 MB in the beginning and 57.9 MB in the end (delta: -22.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 16.1 GB. * Witness Printer took 5.55 ms. Allocated memory is still 94.4 MB. Free memory was 57.9 MB in the beginning and 57.0 MB in the end (delta: 830.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.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: 771]: 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 771. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L772] CALL entry_point() [L768] struct ldv_list_head list_14 = { &(list_14), &(list_14) }; [L769] CALL alloc_14(&list_14) [L762] CALL, EXPR ldv_malloc(sizeof(struct A14)) [L526] COND FALSE !(__VERIFIER_nondet_int()) [L529] return 0; [L762] RET, EXPR ldv_malloc(sizeof(struct A14)) [L762] struct A14 *p = (struct A14 *)ldv_malloc(sizeof(struct A14)); [L763] COND FALSE !(\read(*p)) [L769] RET alloc_14(&list_14) [L768] struct ldv_list_head list_14 = { &(list_14), &(list_14) }; [L772] 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. - StatisticsResult: Ultimate Automizer benchmark data CFG has 48 procedures, 337 locations, 71 error locations. Started 1 CEGAR loops. OverallTime: 490.2s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 411.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 264 SDtfs, 379 SDslu, 1323 SDs, 0 SdLazy, 1720 SolverSat, 155 SolverUnsat, 143 SolverUnknown, 0 SolverNotchecked, 299.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 379 GetRequests, 237 SyntacticMatches, 17 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 296 ImplicationChecksByTransitivity, 131.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=126occurred in iteration=0, InterpolantAutomatonStates: 89, 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, 8 MinimizatonAttempts, 55 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 48.8s InterpolantComputationTime, 195 NumberOfCodeBlocks, 195 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 351 ConstructedInterpolants, 37 QuantifiedInterpolants, 2962 SizeOfPredicates, 57 NumberOfNonLiveVariables, 1134 ConjunctsInSsa, 138 ConjunctsInUnsatCore, 17 InterpolantComputations, 17 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-28 10:02:43,506 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc5f24-d6f7-4adf-bdcc-6d1962a0b129/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...