./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test9.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c920775-1006-4a71-82ba-1bb420c6e4fa/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c920775-1006-4a71-82ba-1bb420c6e4fa/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c920775-1006-4a71-82ba-1bb420c6e4fa/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c920775-1006-4a71-82ba-1bb420c6e4fa/bin/uautomizer-WNIpwEf4Nt/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test9.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c920775-1006-4a71-82ba-1bb420c6e4fa/bin/uautomizer-WNIpwEf4Nt/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c920775-1006-4a71-82ba-1bb420c6e4fa/bin/uautomizer-WNIpwEf4Nt --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4e0e1098f21fb27be4a1372259b2e0fa3db81f74 ................................................................................................................................... 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_7c920775-1006-4a71-82ba-1bb420c6e4fa/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c920775-1006-4a71-82ba-1bb420c6e4fa/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c920775-1006-4a71-82ba-1bb420c6e4fa/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c920775-1006-4a71-82ba-1bb420c6e4fa/bin/uautomizer-WNIpwEf4Nt/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test9.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c920775-1006-4a71-82ba-1bb420c6e4fa/bin/uautomizer-WNIpwEf4Nt/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c920775-1006-4a71-82ba-1bb420c6e4fa/bin/uautomizer-WNIpwEf4Nt --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4e0e1098f21fb27be4a1372259b2e0fa3db81f74 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 00:43:56,557 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:43:56,560 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:43:56,608 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:43:56,610 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:43:56,613 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:43:56,619 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:43:56,626 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:43:56,631 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:43:56,636 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:43:56,637 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:43:56,642 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:43:56,643 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:43:56,654 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:43:56,657 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:43:56,660 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:43:56,664 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:43:56,666 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:43:56,677 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:43:56,680 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:43:56,683 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:43:56,690 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:43:56,692 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:43:56,696 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:43:56,706 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:43:56,707 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:43:56,707 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:43:56,711 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:43:56,712 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:43:56,714 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:43:56,716 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:43:56,717 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:43:56,721 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:43:56,722 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:43:56,725 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:43:56,726 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:43:56,727 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:43:56,727 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:43:56,728 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:43:56,729 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:43:56,730 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:43:56,731 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c920775-1006-4a71-82ba-1bb420c6e4fa/bin/uautomizer-WNIpwEf4Nt/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-10-13 00:43:56,798 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:43:56,799 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:43:56,800 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:43:56,800 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:43:56,802 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:43:56,803 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:43:56,803 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:43:56,803 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:43:56,804 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:43:56,804 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 00:43:56,806 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:43:56,806 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:43:56,806 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:43:56,807 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-13 00:43:56,807 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-13 00:43:56,807 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-13 00:43:56,808 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 00:43:56,808 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 00:43:56,808 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:43:56,809 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:43:56,809 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:43:56,809 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:43:56,810 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 00:43:56,810 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:43:56,810 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:43:56,811 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 00:43:56,811 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:43:56,811 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 00:43:56,812 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:43:56,814 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_7c920775-1006-4a71-82ba-1bb420c6e4fa/bin/uautomizer-WNIpwEf4Nt/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c920775-1006-4a71-82ba-1bb420c6e4fa/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4e0e1098f21fb27be4a1372259b2e0fa3db81f74 [2021-10-13 00:43:57,254 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:43:57,285 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:43:57,289 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:43:57,291 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:43:57,292 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:43:57,294 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c920775-1006-4a71-82ba-1bb420c6e4fa/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/ldv-memsafety/memleaks_test9.i [2021-10-13 00:43:57,391 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c920775-1006-4a71-82ba-1bb420c6e4fa/bin/uautomizer-WNIpwEf4Nt/data/a651c560d/52e03a834a584b599dc5053c55dd8da3/FLAG3134ada0e [2021-10-13 00:43:58,181 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:43:58,182 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c920775-1006-4a71-82ba-1bb420c6e4fa/sv-benchmarks/c/ldv-memsafety/memleaks_test9.i [2021-10-13 00:43:58,221 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c920775-1006-4a71-82ba-1bb420c6e4fa/bin/uautomizer-WNIpwEf4Nt/data/a651c560d/52e03a834a584b599dc5053c55dd8da3/FLAG3134ada0e [2021-10-13 00:43:58,380 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c920775-1006-4a71-82ba-1bb420c6e4fa/bin/uautomizer-WNIpwEf4Nt/data/a651c560d/52e03a834a584b599dc5053c55dd8da3 [2021-10-13 00:43:58,385 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:43:58,387 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-13 00:43:58,397 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:43:58,398 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:43:58,403 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:43:58,405 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:43:58" (1/1) ... [2021-10-13 00:43:58,409 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@472aa31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:43:58, skipping insertion in model container [2021-10-13 00:43:58,410 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:43:58" (1/1) ... [2021-10-13 00:43:58,421 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:43:58,492 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:43:59,265 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:43:59,308 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-10-13 00:43:59,309 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3ee0799b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:43:59, skipping insertion in model container [2021-10-13 00:43:59,309 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:43:59,311 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-10-13 00:43:59,316 INFO L168 Benchmark]: Toolchain (without parser) took 925.24 ms. Allocated memory is still 109.1 MB. Free memory was 65.4 MB in the beginning and 77.9 MB in the end (delta: -12.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 16.1 GB. [2021-10-13 00:43:59,317 INFO L168 Benchmark]: CDTParser took 0.42 ms. Allocated memory is still 109.1 MB. Free memory is still 83.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:43:59,320 INFO L168 Benchmark]: CACSL2BoogieTranslator took 913.80 ms. Allocated memory is still 109.1 MB. Free memory was 65.2 MB in the beginning and 77.9 MB in the end (delta: -12.7 MB). Peak memory consumption was 6.5 MB. Max. memory is 16.1 GB. [2021-10-13 00:43:59,323 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42 ms. Allocated memory is still 109.1 MB. Free memory is still 83.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 913.80 ms. Allocated memory is still 109.1 MB. Free memory was 65.2 MB in the beginning and 77.9 MB in the end (delta: -12.7 MB). Peak memory consumption was 6.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 00:44:02,397 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:44:02,405 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:44:02,462 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:44:02,463 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:44:02,468 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:44:02,471 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:44:02,484 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:44:02,488 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:44:02,495 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:44:02,496 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:44:02,499 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:44:02,499 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:44:02,503 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:44:02,505 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:44:02,511 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:44:02,513 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:44:02,515 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:44:02,518 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:44:02,521 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:44:02,523 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:44:02,525 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:44:02,526 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:44:02,527 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:44:02,532 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:44:02,532 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:44:02,533 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:44:02,534 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:44:02,535 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:44:02,542 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:44:02,543 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:44:02,544 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:44:02,547 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:44:02,548 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:44:02,550 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:44:02,550 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:44:02,562 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:44:02,563 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:44:02,563 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:44:02,565 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:44:02,566 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:44:02,573 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c920775-1006-4a71-82ba-1bb420c6e4fa/bin/uautomizer-WNIpwEf4Nt/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-13 00:44:02,637 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:44:02,638 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:44:02,639 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:44:02,639 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:44:02,641 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:44:02,642 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:44:02,642 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:44:02,642 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:44:02,643 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:44:02,643 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 00:44:02,644 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:44:02,644 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:44:02,645 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:44:02,645 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-13 00:44:02,645 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-13 00:44:02,646 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-13 00:44:02,646 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 00:44:02,646 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 00:44:02,646 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-13 00:44:02,647 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-13 00:44:02,647 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:44:02,647 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:44:02,647 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:44:02,648 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:44:02,648 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 00:44:02,648 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:44:02,649 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:44:02,649 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 00:44:02,649 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-13 00:44:02,650 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-13 00:44:02,650 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:44:02,650 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 00:44:02,651 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_7c920775-1006-4a71-82ba-1bb420c6e4fa/bin/uautomizer-WNIpwEf4Nt/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c920775-1006-4a71-82ba-1bb420c6e4fa/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4e0e1098f21fb27be4a1372259b2e0fa3db81f74 [2021-10-13 00:44:03,104 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:44:03,131 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:44:03,134 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:44:03,135 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:44:03,136 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:44:03,137 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c920775-1006-4a71-82ba-1bb420c6e4fa/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/ldv-memsafety/memleaks_test9.i [2021-10-13 00:44:03,222 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c920775-1006-4a71-82ba-1bb420c6e4fa/bin/uautomizer-WNIpwEf4Nt/data/050857738/b9595af518624d648759c19691a254cb/FLAG2486b1e82 [2021-10-13 00:44:03,976 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:44:03,977 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c920775-1006-4a71-82ba-1bb420c6e4fa/sv-benchmarks/c/ldv-memsafety/memleaks_test9.i [2021-10-13 00:44:04,004 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c920775-1006-4a71-82ba-1bb420c6e4fa/bin/uautomizer-WNIpwEf4Nt/data/050857738/b9595af518624d648759c19691a254cb/FLAG2486b1e82 [2021-10-13 00:44:04,240 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c920775-1006-4a71-82ba-1bb420c6e4fa/bin/uautomizer-WNIpwEf4Nt/data/050857738/b9595af518624d648759c19691a254cb [2021-10-13 00:44:04,243 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:44:04,247 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-13 00:44:04,252 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:44:04,252 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:44:04,258 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:44:04,259 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:44:04" (1/1) ... [2021-10-13 00:44:04,260 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4eb0cb2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:44:04, skipping insertion in model container [2021-10-13 00:44:04,261 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:44:04" (1/1) ... [2021-10-13 00:44:04,272 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:44:04,358 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:44:05,021 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:44:05,054 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-13 00:44:05,076 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:44:05,157 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:44:05,175 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:44:05,276 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:44:05,341 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:44:05,342 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:44:05 WrapperNode [2021-10-13 00:44:05,342 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:44:05,345 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:44:05,345 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:44:05,345 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:44:05,367 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:44:05" (1/1) ... [2021-10-13 00:44:05,367 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:44:05" (1/1) ... [2021-10-13 00:44:05,412 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:44:05" (1/1) ... [2021-10-13 00:44:05,412 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:44:05" (1/1) ... [2021-10-13 00:44:05,455 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:44:05" (1/1) ... [2021-10-13 00:44:05,479 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:44:05" (1/1) ... [2021-10-13 00:44:05,497 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:44:05" (1/1) ... [2021-10-13 00:44:05,514 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:44:05,516 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:44:05,516 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:44:05,516 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:44:05,517 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:44:05" (1/1) ... [2021-10-13 00:44:05,545 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:44:05,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c920775-1006-4a71-82ba-1bb420c6e4fa/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:44:05,586 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c920775-1006-4a71-82ba-1bb420c6e4fa/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 00:44:05,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c920775-1006-4a71-82ba-1bb420c6e4fa/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 00:44:05,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-13 00:44:05,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:44:05,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-10-13 00:44:05,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-10-13 00:44:05,671 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-10-13 00:44:05,674 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-10-13 00:44:05,675 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-10-13 00:44:05,675 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-10-13 00:44:05,675 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-10-13 00:44:05,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-10-13 00:44:05,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-10-13 00:44:05,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-10-13 00:44:05,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-10-13 00:44:05,676 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-10-13 00:44:05,677 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-10-13 00:44:05,677 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-10-13 00:44:05,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-10-13 00:44:05,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-10-13 00:44:05,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-10-13 00:44:05,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-10-13 00:44:05,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-10-13 00:44:05,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-10-13 00:44:05,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-10-13 00:44:05,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-10-13 00:44:05,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-10-13 00:44:05,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-10-13 00:44:05,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-10-13 00:44:05,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-10-13 00:44:05,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-10-13 00:44:05,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-10-13 00:44:05,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-10-13 00:44:05,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-10-13 00:44:05,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-10-13 00:44:05,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-10-13 00:44:05,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-10-13 00:44:05,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-10-13 00:44:05,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-10-13 00:44:05,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-10-13 00:44:05,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-10-13 00:44:05,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-10-13 00:44:05,682 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-10-13 00:44:05,683 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-10-13 00:44:05,683 INFO L138 BoogieDeclarations]: Found implementation of procedure probe_9 [2021-10-13 00:44:05,683 INFO L138 BoogieDeclarations]: Found implementation of procedure disconnect_9 [2021-10-13 00:44:05,684 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-10-13 00:44:05,684 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-13 00:44:05,685 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-10-13 00:44:05,686 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-10-13 00:44:05,686 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-10-13 00:44:05,686 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-10-13 00:44:05,687 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-10-13 00:44:05,687 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-10-13 00:44:05,687 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-10-13 00:44:05,688 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-10-13 00:44:05,688 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-10-13 00:44:05,688 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-10-13 00:44:05,688 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-10-13 00:44:05,689 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-10-13 00:44:05,689 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-10-13 00:44:05,690 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-10-13 00:44:05,690 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-10-13 00:44:05,690 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-10-13 00:44:05,692 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-10-13 00:44:05,692 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-10-13 00:44:05,693 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-10-13 00:44:05,694 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-10-13 00:44:05,694 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-10-13 00:44:05,694 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-10-13 00:44:05,694 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-10-13 00:44:05,695 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-10-13 00:44:05,695 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-10-13 00:44:05,695 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-10-13 00:44:05,695 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-10-13 00:44:05,695 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-10-13 00:44:05,696 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-10-13 00:44:05,696 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-10-13 00:44:05,696 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-10-13 00:44:05,696 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-10-13 00:44:05,697 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-10-13 00:44:05,698 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-10-13 00:44:05,698 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-10-13 00:44:05,698 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-10-13 00:44:05,698 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-10-13 00:44:05,698 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-10-13 00:44:05,699 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-10-13 00:44:05,699 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-10-13 00:44:05,699 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-10-13 00:44:05,699 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-10-13 00:44:05,699 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-10-13 00:44:05,700 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-10-13 00:44:05,700 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-10-13 00:44:05,700 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-10-13 00:44:05,700 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-10-13 00:44:05,700 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-10-13 00:44:05,701 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-10-13 00:44:05,701 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-10-13 00:44:05,701 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-10-13 00:44:05,701 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-10-13 00:44:05,702 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-10-13 00:44:05,702 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-10-13 00:44:05,702 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-10-13 00:44:05,703 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-10-13 00:44:05,703 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-10-13 00:44:05,703 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-10-13 00:44:05,703 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-10-13 00:44:05,703 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-10-13 00:44:05,704 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-10-13 00:44:05,704 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-10-13 00:44:05,704 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-10-13 00:44:05,704 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-10-13 00:44:05,704 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-10-13 00:44:05,705 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-10-13 00:44:05,705 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-13 00:44:05,705 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-10-13 00:44:05,705 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-10-13 00:44:05,705 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-10-13 00:44:05,706 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-10-13 00:44:05,706 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-10-13 00:44:05,706 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-10-13 00:44:05,707 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-10-13 00:44:05,707 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-10-13 00:44:05,707 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-10-13 00:44:05,708 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-10-13 00:44:05,709 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-10-13 00:44:05,713 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-10-13 00:44:05,713 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-10-13 00:44:05,714 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-10-13 00:44:05,714 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-10-13 00:44:05,715 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-10-13 00:44:05,716 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-10-13 00:44:05,716 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-10-13 00:44:05,716 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-10-13 00:44:05,718 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-10-13 00:44:05,723 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-10-13 00:44:05,723 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-10-13 00:44:05,724 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-10-13 00:44:05,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-10-13 00:44:05,724 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-10-13 00:44:05,724 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-10-13 00:44:05,724 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-10-13 00:44:05,725 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-10-13 00:44:05,725 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-10-13 00:44:05,725 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-10-13 00:44:05,725 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-10-13 00:44:05,725 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-10-13 00:44:05,725 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-10-13 00:44:05,726 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-10-13 00:44:05,726 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-10-13 00:44:05,726 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-10-13 00:44:05,726 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-10-13 00:44:05,726 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-10-13 00:44:05,727 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-10-13 00:44:05,727 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-10-13 00:44:05,727 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-10-13 00:44:05,727 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-10-13 00:44:05,727 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-10-13 00:44:05,727 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-10-13 00:44:05,728 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-13 00:44:05,728 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-10-13 00:44:05,728 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-10-13 00:44:05,728 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-10-13 00:44:05,728 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-10-13 00:44:05,729 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-10-13 00:44:05,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-13 00:44:05,729 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-10-13 00:44:05,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-10-13 00:44:05,729 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-10-13 00:44:05,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-13 00:44:05,730 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-10-13 00:44:05,730 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-10-13 00:44:05,730 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-10-13 00:44:05,730 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-13 00:44:05,730 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-10-13 00:44:05,731 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-10-13 00:44:05,731 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-10-13 00:44:05,731 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-10-13 00:44:05,731 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-10-13 00:44:05,736 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-10-13 00:44:05,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 00:44:05,736 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-10-13 00:44:05,737 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-10-13 00:44:05,737 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-10-13 00:44:05,737 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-10-13 00:44:05,737 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-10-13 00:44:05,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-13 00:44:05,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-13 00:44:05,738 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-10-13 00:44:05,738 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-10-13 00:44:05,738 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-10-13 00:44:05,738 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-10-13 00:44:05,738 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-10-13 00:44:05,739 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-10-13 00:44:05,739 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-10-13 00:44:05,739 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-10-13 00:44:05,739 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-10-13 00:44:05,739 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-10-13 00:44:05,739 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-10-13 00:44:05,740 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-10-13 00:44:05,740 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-10-13 00:44:05,740 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-10-13 00:44:05,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-10-13 00:44:05,740 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-10-13 00:44:05,741 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-10-13 00:44:05,741 INFO L130 BoogieDeclarations]: Found specification of procedure probe_9 [2021-10-13 00:44:05,741 INFO L130 BoogieDeclarations]: Found specification of procedure disconnect_9 [2021-10-13 00:44:05,741 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-10-13 00:44:05,741 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-13 00:44:05,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-13 00:44:05,742 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:44:05,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-13 00:44:05,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:44:05,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-10-13 00:44:05,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-10-13 00:44:05,742 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-10-13 00:44:05,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-10-13 00:44:05,743 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-10-13 00:44:06,674 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 00:44:07,155 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 00:44:07,609 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:44:07,609 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-10-13 00:44:07,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:44:07 BoogieIcfgContainer [2021-10-13 00:44:07,614 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:44:07,617 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 00:44:07,617 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 00:44:07,622 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 00:44:07,622 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:44:04" (1/3) ... [2021-10-13 00:44:07,623 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65142ae5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:44:07, skipping insertion in model container [2021-10-13 00:44:07,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:44:05" (2/3) ... [2021-10-13 00:44:07,625 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65142ae5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:44:07, skipping insertion in model container [2021-10-13 00:44:07,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:44:07" (3/3) ... [2021-10-13 00:44:07,627 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test9.i [2021-10-13 00:44:07,636 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 00:44:07,636 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 74 error locations. [2021-10-13 00:44:07,709 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 00:44:07,719 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 00:44:07,720 INFO L340 AbstractCegarLoop]: Starting to check reachability of 74 error locations. [2021-10-13 00:44:07,747 INFO L276 IsEmpty]: Start isEmpty. Operand has 105 states, 58 states have (on average 1.5) internal successors, (87), 80 states have internal predecessors, (87), 13 states have call successors, (13), 12 states have call predecessors, (13), 12 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2021-10-13 00:44:07,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-13 00:44:07,779 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:44:07,781 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:44:07,781 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting disconnect_9Err0ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-13 00:44:07,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:44:07,794 INFO L82 PathProgramCache]: Analyzing trace with hash 426051374, now seen corresponding path program 1 times [2021-10-13 00:44:07,813 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:44:07,813 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [908554362] [2021-10-13 00:44:07,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:44:07,815 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:44:07,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c920775-1006-4a71-82ba-1bb420c6e4fa/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:44:07,824 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c920775-1006-4a71-82ba-1bb420c6e4fa/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:44:07,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c920775-1006-4a71-82ba-1bb420c6e4fa/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-13 00:44:08,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:44:08,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 00:44:08,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:44:08,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:44:08,373 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:44:08,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:44:08,545 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:44:08,546 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [908554362] [2021-10-13 00:44:08,547 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [908554362] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:44:08,547 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:44:08,548 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-13 00:44:08,550 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493017831] [2021-10-13 00:44:08,557 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 00:44:08,557 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:44:08,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 00:44:08,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:44:08,581 INFO L87 Difference]: Start difference. First operand has 105 states, 58 states have (on average 1.5) internal successors, (87), 80 states have internal predecessors, (87), 13 states have call successors, (13), 12 states have call predecessors, (13), 12 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-13 00:44:08,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:44:08,663 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2021-10-13 00:44:08,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 00:44:08,666 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 20 [2021-10-13 00:44:08,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:44:08,679 INFO L225 Difference]: With dead ends: 34 [2021-10-13 00:44:08,679 INFO L226 Difference]: Without dead ends: 31 [2021-10-13 00:44:08,682 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 42.9ms TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-13 00:44:08,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-10-13 00:44:08,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2021-10-13 00:44:08,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 20 states have internal predecessors, (22), 6 states have call successors, (6), 6 states have call predecessors, (6), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-10-13 00:44:08,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions. [2021-10-13 00:44:08,739 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 20 [2021-10-13 00:44:08,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:44:08,740 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 33 transitions. [2021-10-13 00:44:08,740 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-13 00:44:08,741 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2021-10-13 00:44:08,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-13 00:44:08,743 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:44:08,743 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:44:08,769 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c920775-1006-4a71-82ba-1bb420c6e4fa/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-13 00:44:08,957 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c920775-1006-4a71-82ba-1bb420c6e4fa/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:44:08,957 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting disconnect_9Err1ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-13 00:44:08,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:44:08,959 INFO L82 PathProgramCache]: Analyzing trace with hash 322691135, now seen corresponding path program 1 times [2021-10-13 00:44:08,959 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:44:08,960 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2056166440] [2021-10-13 00:44:08,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:44:08,961 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:44:08,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c920775-1006-4a71-82ba-1bb420c6e4fa/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:44:08,963 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c920775-1006-4a71-82ba-1bb420c6e4fa/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:44:09,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c920775-1006-4a71-82ba-1bb420c6e4fa/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-13 00:44:09,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:44:09,215 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-13 00:44:09,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:44:09,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:44:09,569 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:44:09,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:44:09,871 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:44:09,871 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2056166440] [2021-10-13 00:44:09,872 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2056166440] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:44:09,872 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:44:09,872 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 8 [2021-10-13 00:44:09,872 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686823789] [2021-10-13 00:44:09,874 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-13 00:44:09,874 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:44:09,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-13 00:44:09,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-10-13 00:44:09,876 INFO L87 Difference]: Start difference. First operand 31 states and 33 transitions. Second operand has 9 states, 8 states have (on average 3.0) internal successors, (24), 7 states have internal predecessors, (24), 4 states have call successors, (11), 4 states have call predecessors, (11), 6 states have return successors, (6), 6 states have call predecessors, (6), 2 states have call successors, (6) [2021-10-13 00:44:10,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:44:10,242 INFO L93 Difference]: Finished difference Result 45 states and 49 transitions. [2021-10-13 00:44:10,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-13 00:44:10,248 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.0) internal successors, (24), 7 states have internal predecessors, (24), 4 states have call successors, (11), 4 states have call predecessors, (11), 6 states have return successors, (6), 6 states have call predecessors, (6), 2 states have call successors, (6) Word has length 21 [2021-10-13 00:44:10,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:44:10,251 INFO L225 Difference]: With dead ends: 45 [2021-10-13 00:44:10,251 INFO L226 Difference]: Without dead ends: 45 [2021-10-13 00:44:10,252 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 234.3ms TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-10-13 00:44:10,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-10-13 00:44:10,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 34. [2021-10-13 00:44:10,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 20 states have (on average 1.2) internal successors, (24), 22 states have internal predecessors, (24), 6 states have call successors, (6), 6 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) [2021-10-13 00:44:10,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 36 transitions. [2021-10-13 00:44:10,263 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 36 transitions. Word has length 21 [2021-10-13 00:44:10,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:44:10,264 INFO L470 AbstractCegarLoop]: Abstraction has 34 states and 36 transitions. [2021-10-13 00:44:10,264 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.0) internal successors, (24), 7 states have internal predecessors, (24), 4 states have call successors, (11), 4 states have call predecessors, (11), 6 states have return successors, (6), 6 states have call predecessors, (6), 2 states have call successors, (6) [2021-10-13 00:44:10,265 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2021-10-13 00:44:10,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-13 00:44:10,266 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:44:10,266 INFO L512 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] [2021-10-13 00:44:10,286 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c920775-1006-4a71-82ba-1bb420c6e4fa/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-13 00:44:10,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c920775-1006-4a71-82ba-1bb420c6e4fa/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:44:10,481 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting disconnect_9Err2ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-13 00:44:10,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:44:10,483 INFO L82 PathProgramCache]: Analyzing trace with hash 1413491024, now seen corresponding path program 1 times [2021-10-13 00:44:10,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:44:10,484 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [528429186] [2021-10-13 00:44:10,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:44:10,485 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:44:10,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c920775-1006-4a71-82ba-1bb420c6e4fa/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:44:10,490 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c920775-1006-4a71-82ba-1bb420c6e4fa/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:44:10,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c920775-1006-4a71-82ba-1bb420c6e4fa/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-13 00:44:10,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:44:10,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-13 00:44:10,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:44:10,851 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-13 00:44:10,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:44:10,957 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:44:11,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:44:11,174 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:44:11,175 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [528429186] [2021-10-13 00:44:11,175 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [528429186] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:44:11,175 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:44:11,176 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-13 00:44:11,176 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290045050] [2021-10-13 00:44:11,177 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 00:44:11,177 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:44:11,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 00:44:11,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:44:11,179 INFO L87 Difference]: Start difference. First operand 34 states and 36 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-13 00:44:11,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:44:11,251 INFO L93 Difference]: Finished difference Result 43 states and 47 transitions. [2021-10-13 00:44:11,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 00:44:11,252 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 22 [2021-10-13 00:44:11,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:44:11,256 INFO L225 Difference]: With dead ends: 43 [2021-10-13 00:44:11,257 INFO L226 Difference]: Without dead ends: 43 [2021-10-13 00:44:11,257 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 38 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 30.8ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:44:11,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-10-13 00:44:11,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 42. [2021-10-13 00:44:11,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 26 states have (on average 1.1923076923076923) internal successors, (31), 28 states have internal predecessors, (31), 7 states have call successors, (7), 7 states have call predecessors, (7), 7 states have return successors, (8), 7 states have call predecessors, (8), 6 states have call successors, (8) [2021-10-13 00:44:11,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2021-10-13 00:44:11,267 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 22 [2021-10-13 00:44:11,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:44:11,268 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2021-10-13 00:44:11,268 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-13 00:44:11,269 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2021-10-13 00:44:11,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-13 00:44:11,270 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:44:11,270 INFO L512 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] [2021-10-13 00:44:11,279 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c920775-1006-4a71-82ba-1bb420c6e4fa/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-13 00:44:11,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c920775-1006-4a71-82ba-1bb420c6e4fa/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:44:11,471 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting disconnect_9Err2ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-13 00:44:11,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:44:11,472 INFO L82 PathProgramCache]: Analyzing trace with hash 1120088017, now seen corresponding path program 1 times [2021-10-13 00:44:11,473 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:44:11,473 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1659057204] [2021-10-13 00:44:11,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:44:11,474 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:44:11,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c920775-1006-4a71-82ba-1bb420c6e4fa/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:44:11,476 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c920775-1006-4a71-82ba-1bb420c6e4fa/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:44:11,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c920775-1006-4a71-82ba-1bb420c6e4fa/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-13 00:44:11,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:44:11,742 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 00:44:11,744 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:44:11,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:44:11,903 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:44:12,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:44:12,125 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:44:12,126 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1659057204] [2021-10-13 00:44:12,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1659057204] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:44:12,126 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:44:12,126 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-13 00:44:12,126 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933239805] [2021-10-13 00:44:12,127 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 00:44:12,127 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:44:12,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 00:44:12,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:44:12,128 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-13 00:44:12,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:44:12,215 INFO L93 Difference]: Finished difference Result 44 states and 46 transitions. [2021-10-13 00:44:12,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 00:44:12,216 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), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 22 [2021-10-13 00:44:12,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:44:12,218 INFO L225 Difference]: With dead ends: 44 [2021-10-13 00:44:12,218 INFO L226 Difference]: Without dead ends: 44 [2021-10-13 00:44:12,219 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 62.5ms TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-13 00:44:12,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-10-13 00:44:12,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 33. [2021-10-13 00:44:12,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 20 states have (on average 1.1) internal successors, (22), 21 states have internal predecessors, (22), 6 states have call successors, (6), 6 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) [2021-10-13 00:44:12,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2021-10-13 00:44:12,226 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 22 [2021-10-13 00:44:12,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:44:12,235 INFO L470 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2021-10-13 00:44:12,235 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), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-13 00:44:12,236 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2021-10-13 00:44:12,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-13 00:44:12,237 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:44:12,237 INFO L512 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] [2021-10-13 00:44:12,255 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c920775-1006-4a71-82ba-1bb420c6e4fa/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-13 00:44:12,444 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c920775-1006-4a71-82ba-1bb420c6e4fa/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:44:12,445 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-13 00:44:12,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:44:12,451 INFO L82 PathProgramCache]: Analyzing trace with hash 1413668411, now seen corresponding path program 1 times [2021-10-13 00:44:12,452 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:44:12,452 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1352604768] [2021-10-13 00:44:12,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:44:12,453 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:44:12,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c920775-1006-4a71-82ba-1bb420c6e4fa/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:44:12,454 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c920775-1006-4a71-82ba-1bb420c6e4fa/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:44:12,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c920775-1006-4a71-82ba-1bb420c6e4fa/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-13 00:44:12,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:44:12,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 00:44:12,738 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:44:12,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:44:12,844 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:44:12,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:44:12,984 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:44:12,985 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1352604768] [2021-10-13 00:44:12,985 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1352604768] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:44:12,985 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:44:12,985 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-13 00:44:12,985 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069061338] [2021-10-13 00:44:12,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 00:44:12,986 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:44:12,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 00:44:12,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:44:12,987 INFO L87 Difference]: Start difference. First operand 33 states and 34 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) [2021-10-13 00:44:13,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:44:13,005 INFO L93 Difference]: Finished difference Result 40 states and 41 transitions. [2021-10-13 00:44:13,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 00:44:13,006 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 [2021-10-13 00:44:13,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:44:13,007 INFO L225 Difference]: With dead ends: 40 [2021-10-13 00:44:13,007 INFO L226 Difference]: Without dead ends: 40 [2021-10-13 00:44:13,008 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.8ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:44:13,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2021-10-13 00:44:13,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 37. [2021-10-13 00:44:13,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 23 states have (on average 1.0869565217391304) internal successors, (25), 24 states have internal predecessors, (25), 6 states have call successors, (6), 6 states have call predecessors, (6), 7 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) [2021-10-13 00:44:13,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 38 transitions. [2021-10-13 00:44:13,015 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 38 transitions. Word has length 22 [2021-10-13 00:44:13,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:44:13,016 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 38 transitions. [2021-10-13 00:44:13,016 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) [2021-10-13 00:44:13,016 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 38 transitions. [2021-10-13 00:44:13,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-13 00:44:13,018 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:44:13,018 INFO L512 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] [2021-10-13 00:44:13,039 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c920775-1006-4a71-82ba-1bb420c6e4fa/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-13 00:44:13,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c920775-1006-4a71-82ba-1bb420c6e4fa/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:44:13,234 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-13 00:44:13,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:44:13,235 INFO L82 PathProgramCache]: Analyzing trace with hash -687189059, now seen corresponding path program 1 times [2021-10-13 00:44:13,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:44:13,236 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1850590008] [2021-10-13 00:44:13,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:44:13,236 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:44:13,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c920775-1006-4a71-82ba-1bb420c6e4fa/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:44:13,238 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c920775-1006-4a71-82ba-1bb420c6e4fa/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:44:13,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c920775-1006-4a71-82ba-1bb420c6e4fa/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-13 00:44:13,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:44:13,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-13 00:44:13,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:44:13,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:44:13,628 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:44:13,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:44:13,886 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:44:13,886 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1850590008] [2021-10-13 00:44:13,886 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1850590008] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:44:13,886 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:44:13,887 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-13 00:44:13,887 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445488383] [2021-10-13 00:44:13,887 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:44:13,887 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:44:13,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:44:13,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:44:13,889 INFO L87 Difference]: Start difference. First operand 37 states and 38 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-13 00:44:13,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:44:13,959 INFO L93 Difference]: Finished difference Result 42 states and 43 transitions. [2021-10-13 00:44:13,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:44:13,960 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 22 [2021-10-13 00:44:13,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:44:13,962 INFO L225 Difference]: With dead ends: 42 [2021-10-13 00:44:13,962 INFO L226 Difference]: Without dead ends: 38 [2021-10-13 00:44:13,962 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:44:13,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-10-13 00:44:13,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 33. [2021-10-13 00:44:13,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 20 states have (on average 1.05) internal successors, (21), 20 states have internal predecessors, (21), 6 states have call successors, (6), 6 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) [2021-10-13 00:44:13,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 33 transitions. [2021-10-13 00:44:13,973 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 33 transitions. Word has length 22 [2021-10-13 00:44:13,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:44:13,974 INFO L470 AbstractCegarLoop]: Abstraction has 33 states and 33 transitions. [2021-10-13 00:44:13,974 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-13 00:44:13,975 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 33 transitions. [2021-10-13 00:44:13,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-13 00:44:13,976 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:44:13,977 INFO L512 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, 1, 1, 1, 1, 1] [2021-10-13 00:44:13,995 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c920775-1006-4a71-82ba-1bb420c6e4fa/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-13 00:44:14,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c920775-1006-4a71-82ba-1bb420c6e4fa/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:44:14,191 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-13 00:44:14,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:44:14,192 INFO L82 PathProgramCache]: Analyzing trace with hash -2013122506, now seen corresponding path program 1 times [2021-10-13 00:44:14,192 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:44:14,193 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [531904459] [2021-10-13 00:44:14,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:44:14,193 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:44:14,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c920775-1006-4a71-82ba-1bb420c6e4fa/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:44:14,200 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c920775-1006-4a71-82ba-1bb420c6e4fa/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:44:14,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c920775-1006-4a71-82ba-1bb420c6e4fa/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-13 00:44:14,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:44:14,542 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-13 00:44:14,545 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:44:14,820 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 9 treesize of output 7 [2021-10-13 00:44:15,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:44:15,019 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:44:19,575 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_11| (Array (_ BitVec 32) (_ BitVec 1)))) (or (= |v_old(#valid)_BEFORE_CALL_11| |c_#valid|) (exists ((v_~a9~0.base_93 (_ BitVec 32))) (and (not (= (store |c_old(#valid)| v_~a9~0.base_93 (_ bv0 1)) |v_old(#valid)_BEFORE_CALL_11|)) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_old(#valid)| v_~a9~0.base_93)))))))))))) is different from false [2021-10-13 00:44:20,146 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:44:20,146 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [531904459] [2021-10-13 00:44:20,149 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(= (store |v_old(#valid)_BEFORE_CALL_12| v_~a9~0.base_93 (_ bv0 1)) v_prenex_1)=(= (select (store |v_old(#valid)_BEFORE_CALL_12| v_~a9~0.base_93 (_ bv0 1)) v_antiDerIndex_entry0_1) (select v_prenex_1 v_antiDerIndex_entry0_1))} [2021-10-13 00:44:20,150 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [623594586] [2021-10-13 00:44:20,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:44:20,153 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 00:44:20,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c920775-1006-4a71-82ba-1bb420c6e4fa/bin/uautomizer-WNIpwEf4Nt/cvc4 [2021-10-13 00:44:20,160 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c920775-1006-4a71-82ba-1bb420c6e4fa/bin/uautomizer-WNIpwEf4Nt/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 00:44:20,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c920775-1006-4a71-82ba-1bb420c6e4fa/bin/uautomizer-WNIpwEf4Nt/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2021-10-13 00:44:20,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:44:20,704 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-13 00:44:20,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:44:20,756 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-10-13 00:44:20,757 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 [2021-10-13 00:44:23,336 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 10 treesize of output 8 [2021-10-13 00:44:25,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:44:25,571 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:44:29,974 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_17| (Array (_ BitVec 32) (_ BitVec 1)))) (or (= |v_old(#valid)_BEFORE_CALL_17| |c_#valid|) (exists ((v_~a9~0.base_93 (_ BitVec 32))) (and (not (= (store |c_old(#valid)| v_~a9~0.base_93 (_ bv0 1)) |v_old(#valid)_BEFORE_CALL_17|)) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_old(#valid)| v_~a9~0.base_93)))))))))))) is different from false [2021-10-13 00:44:30,154 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_17| (Array (_ BitVec 32) (_ BitVec 1)))) (or (= |v_old(#valid)_BEFORE_CALL_17| (store |c_#valid| c_~a9~0.base (_ bv0 1))) (exists ((v_~a9~0.base_93 (_ BitVec 32))) (and (not (= (store |c_old(#valid)| v_~a9~0.base_93 (_ bv0 1)) |v_old(#valid)_BEFORE_CALL_17|)) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_old(#valid)| v_~a9~0.base_93)))))))))))) is different from false [2021-10-13 00:44:30,267 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(= (store |v_old(#valid)_BEFORE_CALL_18| v_~a9~0.base_93 (_ bv0 1)) v_prenex_3)=(= (select (store |v_old(#valid)_BEFORE_CALL_18| v_~a9~0.base_93 (_ bv0 1)) v_antiDerIndex_entry0_2) (select v_prenex_3 v_antiDerIndex_entry0_2))} [2021-10-13 00:44:30,267 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [997857192] [2021-10-13 00:44:30,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:44:30,268 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:44:30,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c920775-1006-4a71-82ba-1bb420c6e4fa/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:44:30,270 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c920775-1006-4a71-82ba-1bb420c6e4fa/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:44:30,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c920775-1006-4a71-82ba-1bb420c6e4fa/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-13 00:44:30,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:44:30,692 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-13 00:44:30,711 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:44:30,887 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 9 treesize of output 7 [2021-10-13 00:44:30,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:44:30,988 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:44:35,401 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_23| (Array (_ BitVec 32) (_ BitVec 1)))) (or (exists ((v_~a9~0.base_93 (_ BitVec 32))) (and (not (= (store |c_old(#valid)| v_~a9~0.base_93 (_ bv0 1)) |v_old(#valid)_BEFORE_CALL_23|)) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_old(#valid)| v_~a9~0.base_93)))))))))) (= |v_old(#valid)_BEFORE_CALL_23| |c_#valid|))) is different from false [2021-10-13 00:44:35,798 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(= (store |v_old(#valid)_BEFORE_CALL_24| v_~a9~0.base_93 (_ bv0 1)) v_prenex_5)=(= (select (store |v_old(#valid)_BEFORE_CALL_24| v_~a9~0.base_93 (_ bv0 1)) v_antiDerIndex_entry0_3) (select v_prenex_5 v_antiDerIndex_entry0_3))} [2021-10-13 00:44:35,799 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:44:35,799 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-10-13 00:44:35,799 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-10-13 00:44:35,799 INFO L626 BasicCegarLoop]: Counterexample might be feasible [2021-10-13 00:44:35,816 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-10-13 00:44:35,819 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION [2021-10-13 00:44:35,820 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION [2021-10-13 00:44:35,820 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION [2021-10-13 00:44:35,821 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION [2021-10-13 00:44:35,821 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION [2021-10-13 00:44:35,821 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION [2021-10-13 00:44:35,822 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION [2021-10-13 00:44:35,822 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION [2021-10-13 00:44:35,822 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION [2021-10-13 00:44:35,822 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION [2021-10-13 00:44:35,823 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION [2021-10-13 00:44:35,823 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION [2021-10-13 00:44:35,823 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION [2021-10-13 00:44:35,823 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION [2021-10-13 00:44:35,824 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION [2021-10-13 00:44:35,824 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION [2021-10-13 00:44:35,824 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION [2021-10-13 00:44:35,824 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION [2021-10-13 00:44:35,825 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION [2021-10-13 00:44:35,825 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION [2021-10-13 00:44:35,825 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION [2021-10-13 00:44:35,825 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION [2021-10-13 00:44:35,826 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION [2021-10-13 00:44:35,826 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION [2021-10-13 00:44:35,828 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION [2021-10-13 00:44:35,828 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION [2021-10-13 00:44:35,829 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION [2021-10-13 00:44:35,829 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION [2021-10-13 00:44:35,829 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION [2021-10-13 00:44:35,830 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION [2021-10-13 00:44:35,830 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION [2021-10-13 00:44:35,830 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION [2021-10-13 00:44:35,830 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION [2021-10-13 00:44:35,831 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION [2021-10-13 00:44:35,831 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION [2021-10-13 00:44:35,831 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION [2021-10-13 00:44:35,831 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION [2021-10-13 00:44:35,832 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION [2021-10-13 00:44:35,832 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION [2021-10-13 00:44:35,832 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION [2021-10-13 00:44:35,832 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION [2021-10-13 00:44:35,833 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION [2021-10-13 00:44:35,833 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:44:35,834 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:44:35,834 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:44:35,835 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:44:35,835 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:44:35,835 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:44:35,835 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION [2021-10-13 00:44:35,836 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION [2021-10-13 00:44:35,836 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION [2021-10-13 00:44:35,836 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION [2021-10-13 00:44:35,836 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION [2021-10-13 00:44:35,837 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION [2021-10-13 00:44:35,837 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION [2021-10-13 00:44:35,837 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION [2021-10-13 00:44:35,837 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:44:35,838 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:44:35,838 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:44:35,838 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:44:35,839 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:44:35,839 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:44:35,839 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION [2021-10-13 00:44:35,839 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION [2021-10-13 00:44:35,840 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION [2021-10-13 00:44:35,840 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION [2021-10-13 00:44:35,840 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION [2021-10-13 00:44:35,840 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION [2021-10-13 00:44:35,841 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION [2021-10-13 00:44:35,841 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION [2021-10-13 00:44:35,841 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location disconnect_9Err0ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:44:35,841 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location disconnect_9Err1ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:44:35,842 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location disconnect_9Err2ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:44:35,893 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c920775-1006-4a71-82ba-1bb420c6e4fa/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-10-13 00:44:36,087 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c920775-1006-4a71-82ba-1bb420c6e4fa/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-13 00:44:36,277 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c920775-1006-4a71-82ba-1bb420c6e4fa/bin/uautomizer-WNIpwEf4Nt/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2021-10-13 00:44:36,468 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c920775-1006-4a71-82ba-1bb420c6e4fa/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c920775-1006-4a71-82ba-1bb420c6e4fa/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c920775-1006-4a71-82ba-1bb420c6e4fa/bin/uautomizer-WNIpwEf4Nt/cvc4 --incremental --print-success --lang smt [2021-10-13 00:44:36,477 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 00:44:36,480 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-10-13 00:44:36,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 12:44:36 BoogieIcfgContainer [2021-10-13 00:44:36,498 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 00:44:36,499 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:44:36,499 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:44:36,499 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:44:36,500 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:44:07" (3/4) ... [2021-10-13 00:44:36,505 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-13 00:44:36,505 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:44:36,510 INFO L168 Benchmark]: Toolchain (without parser) took 32259.12 ms. Allocated memory was 58.7 MB in the beginning and 117.4 MB in the end (delta: 58.7 MB). Free memory was 35.7 MB in the beginning and 36.0 MB in the end (delta: -287.3 kB). Peak memory consumption was 57.9 MB. Max. memory is 16.1 GB. [2021-10-13 00:44:36,511 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 58.7 MB. Free memory is still 39.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:44:36,512 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1091.77 ms. Allocated memory was 58.7 MB in the beginning and 73.4 MB in the end (delta: 14.7 MB). Free memory was 35.5 MB in the beginning and 39.3 MB in the end (delta: -3.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 00:44:36,512 INFO L168 Benchmark]: Boogie Preprocessor took 170.00 ms. Allocated memory is still 73.4 MB. Free memory was 39.1 MB in the beginning and 52.2 MB in the end (delta: -13.1 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. [2021-10-13 00:44:36,513 INFO L168 Benchmark]: RCFGBuilder took 2098.51 ms. Allocated memory is still 73.4 MB. Free memory was 52.2 MB in the beginning and 44.2 MB in the end (delta: 8.0 MB). Peak memory consumption was 23.6 MB. Max. memory is 16.1 GB. [2021-10-13 00:44:36,514 INFO L168 Benchmark]: TraceAbstraction took 28881.05 ms. Allocated memory was 73.4 MB in the beginning and 117.4 MB in the end (delta: 44.0 MB). Free memory was 43.5 MB in the beginning and 37.4 MB in the end (delta: 6.2 MB). Peak memory consumption was 50.5 MB. Max. memory is 16.1 GB. [2021-10-13 00:44:36,514 INFO L168 Benchmark]: Witness Printer took 6.98 ms. Allocated memory is still 117.4 MB. Free memory was 37.1 MB in the beginning and 36.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:44:36,517 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 58.7 MB. Free memory is still 39.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1091.77 ms. Allocated memory was 58.7 MB in the beginning and 73.4 MB in the end (delta: 14.7 MB). Free memory was 35.5 MB in the beginning and 39.3 MB in the end (delta: -3.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 170.00 ms. Allocated memory is still 73.4 MB. Free memory was 39.1 MB in the beginning and 52.2 MB in the end (delta: -13.1 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2098.51 ms. Allocated memory is still 73.4 MB. Free memory was 52.2 MB in the beginning and 44.2 MB in the end (delta: 8.0 MB). Peak memory consumption was 23.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 28881.05 ms. Allocated memory was 73.4 MB in the beginning and 117.4 MB in the end (delta: 44.0 MB). Free memory was 43.5 MB in the beginning and 37.4 MB in the end (delta: 6.2 MB). Peak memory consumption was 50.5 MB. Max. memory is 16.1 GB. * Witness Printer took 6.98 ms. Allocated memory is still 117.4 MB. Free memory was 37.1 MB in the beginning and 36.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. 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, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 775]: 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 775. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L757] int *a9; [L776] CALL entry_point() [L769] CALL, EXPR probe_9() [L759] CALL, EXPR ldv_malloc(sizeof(int)) [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L759] RET, EXPR ldv_malloc(sizeof(int)) [L759] a9 = (int *)ldv_malloc(sizeof(int)) [L760] COND TRUE \read(*a9) [L761] return 0; [L769] RET, EXPR probe_9() [L769] int ret = probe_9(); [L770] COND TRUE ret==0 [L771] CALL disconnect_9() [L766] free(a9) [L766] free(a9) [L766] free(a9) [L771] RET disconnect_9() [L773] a9 = 0 [L776] RET entry_point() - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 766]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 766]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 766]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 49 procedures, 345 locations, 74 error locations. Started 1 CEGAR loops. OverallTime: 28767.7ms, OverallIterations: 7, TraceHistogramMax: 1, EmptinessCheckTime: 48.1ms, AutomataDifference: 767.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 19.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 194 SDtfs, 100 SDslu, 367 SDs, 0 SdLazy, 175 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 348.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 260 GetRequests, 230 SyntacticMatches, 2 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 388.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=105occurred in iteration=0, InterpolantAutomatonStates: 31, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 80.1ms AutomataMinimizationTime, 6 MinimizatonAttempts, 31 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 110.1ms SsaConstructionTime, 253.2ms SatisfiabilityAnalysisTime, 2509.0ms InterpolantComputationTime, 129 NumberOfCodeBlocks, 129 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 246 ConstructedInterpolants, 0 QuantifiedInterpolants, 713 SizeOfPredicates, 1 NumberOfNonLiveVariables, 566 ConjunctsInSsa, 35 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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 [2021-10-13 00:44:36,566 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c920775-1006-4a71-82ba-1bb420c6e4fa/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...