./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test19-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77acc1-cdfa-4093-8340-41a22c0e4f0c/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77acc1-cdfa-4093-8340-41a22c0e4f0c/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77acc1-cdfa-4093-8340-41a22c0e4f0c/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77acc1-cdfa-4093-8340-41a22c0e4f0c/bin/uautomizer-GMMbpWq8iD/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test19-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77acc1-cdfa-4093-8340-41a22c0e4f0c/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77acc1-cdfa-4093-8340-41a22c0e4f0c/bin/uautomizer-GMMbpWq8iD --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 16c93f411f7e7984964960171e6986ff89eb89f75783c8b2783bb47b46e751d9 ................................................................................................................................... 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_ec77acc1-cdfa-4093-8340-41a22c0e4f0c/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77acc1-cdfa-4093-8340-41a22c0e4f0c/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77acc1-cdfa-4093-8340-41a22c0e4f0c/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77acc1-cdfa-4093-8340-41a22c0e4f0c/bin/uautomizer-GMMbpWq8iD/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test19-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77acc1-cdfa-4093-8340-41a22c0e4f0c/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77acc1-cdfa-4093-8340-41a22c0e4f0c/bin/uautomizer-GMMbpWq8iD --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 16c93f411f7e7984964960171e6986ff89eb89f75783c8b2783bb47b46e751d9 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 22:47:31,382 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 22:47:31,383 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 22:47:31,420 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 22:47:31,421 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 22:47:31,422 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 22:47:31,424 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 22:47:31,427 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 22:47:31,430 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 22:47:31,431 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 22:47:31,432 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 22:47:31,434 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 22:47:31,438 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 22:47:31,442 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 22:47:31,444 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 22:47:31,449 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 22:47:31,452 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 22:47:31,460 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 22:47:31,463 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 22:47:31,466 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 22:47:31,471 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 22:47:31,479 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 22:47:31,480 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 22:47:31,481 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 22:47:31,486 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 22:47:31,491 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 22:47:31,491 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 22:47:31,493 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 22:47:31,493 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 22:47:31,499 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 22:47:31,500 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 22:47:31,502 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 22:47:31,503 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 22:47:31,504 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 22:47:31,506 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 22:47:31,508 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 22:47:31,509 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 22:47:31,509 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 22:47:31,510 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 22:47:31,511 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 22:47:31,512 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 22:47:31,512 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77acc1-cdfa-4093-8340-41a22c0e4f0c/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-10-28 22:47:31,542 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 22:47:31,542 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 22:47:31,543 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 22:47:31,543 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 22:47:31,544 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 22:47:31,544 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 22:47:31,545 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 22:47:31,545 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 22:47:31,545 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 22:47:31,545 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 22:47:31,546 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 22:47:31,546 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 22:47:31,546 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 22:47:31,546 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 22:47:31,547 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 22:47:31,547 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 22:47:31,547 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 22:47:31,547 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 22:47:31,547 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 22:47:31,548 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 22:47:31,548 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 22:47:31,548 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 22:47:31,548 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 22:47:31,549 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 22:47:31,549 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 22:47:31,549 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 22:47:31,550 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 22:47:31,550 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 22:47:31,550 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 22:47:31,550 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_ec77acc1-cdfa-4093-8340-41a22c0e4f0c/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77acc1-cdfa-4093-8340-41a22c0e4f0c/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 16c93f411f7e7984964960171e6986ff89eb89f75783c8b2783bb47b46e751d9 [2021-10-28 22:47:31,839 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 22:47:31,870 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 22:47:31,873 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 22:47:31,875 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 22:47:31,877 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 22:47:31,878 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77acc1-cdfa-4093-8340-41a22c0e4f0c/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/ldv-memsafety/memleaks_test19-1.i [2021-10-28 22:47:31,992 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77acc1-cdfa-4093-8340-41a22c0e4f0c/bin/uautomizer-GMMbpWq8iD/data/9f57ac58f/247496ae40294f248637b78fc2b90f94/FLAGddebee7f3 [2021-10-28 22:47:32,622 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 22:47:32,623 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77acc1-cdfa-4093-8340-41a22c0e4f0c/sv-benchmarks/c/ldv-memsafety/memleaks_test19-1.i [2021-10-28 22:47:32,643 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77acc1-cdfa-4093-8340-41a22c0e4f0c/bin/uautomizer-GMMbpWq8iD/data/9f57ac58f/247496ae40294f248637b78fc2b90f94/FLAGddebee7f3 [2021-10-28 22:47:32,848 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77acc1-cdfa-4093-8340-41a22c0e4f0c/bin/uautomizer-GMMbpWq8iD/data/9f57ac58f/247496ae40294f248637b78fc2b90f94 [2021-10-28 22:47:32,850 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 22:47:32,852 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 22:47:32,853 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 22:47:32,854 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 22:47:32,857 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 22:47:32,858 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:47:32" (1/1) ... [2021-10-28 22:47:32,859 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ce75f5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:47:32, skipping insertion in model container [2021-10-28 22:47:32,859 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:47:32" (1/1) ... [2021-10-28 22:47:32,866 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 22:47:32,917 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 22:47:33,419 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 22:47:33,445 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-10-28 22:47:33,446 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@8616c9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:47:33, skipping insertion in model container [2021-10-28 22:47:33,446 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 22:47:33,446 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-10-28 22:47:33,450 INFO L168 Benchmark]: Toolchain (without parser) took 595.90 ms. Allocated memory is still 98.6 MB. Free memory was 63.6 MB in the beginning and 70.1 MB in the end (delta: -6.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 22:47:33,453 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 98.6 MB. Free memory was 54.0 MB in the beginning and 54.0 MB in the end (delta: 40.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 22:47:33,454 INFO L168 Benchmark]: CACSL2BoogieTranslator took 593.12 ms. Allocated memory is still 98.6 MB. Free memory was 63.4 MB in the beginning and 70.1 MB in the end (delta: -6.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 22:47:33,457 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 98.6 MB. Free memory was 54.0 MB in the beginning and 54.0 MB in the end (delta: 40.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 593.12 ms. Allocated memory is still 98.6 MB. Free memory was 63.4 MB in the beginning and 70.1 MB in the end (delta: -6.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 22:47:36,033 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 22:47:36,037 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 22:47:36,097 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 22:47:36,098 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 22:47:36,102 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 22:47:36,104 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 22:47:36,112 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 22:47:36,114 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 22:47:36,115 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 22:47:36,116 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 22:47:36,117 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 22:47:36,118 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 22:47:36,119 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 22:47:36,121 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 22:47:36,122 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 22:47:36,123 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 22:47:36,124 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 22:47:36,127 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 22:47:36,129 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 22:47:36,131 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 22:47:36,133 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 22:47:36,134 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 22:47:36,135 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 22:47:36,139 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 22:47:36,140 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 22:47:36,140 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 22:47:36,141 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 22:47:36,142 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 22:47:36,143 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 22:47:36,144 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 22:47:36,145 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 22:47:36,146 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 22:47:36,147 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 22:47:36,148 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 22:47:36,149 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 22:47:36,157 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 22:47:36,157 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 22:47:36,157 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 22:47:36,159 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 22:47:36,160 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 22:47:36,161 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77acc1-cdfa-4093-8340-41a22c0e4f0c/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-28 22:47:36,211 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 22:47:36,211 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 22:47:36,212 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 22:47:36,212 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 22:47:36,215 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 22:47:36,215 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 22:47:36,216 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 22:47:36,216 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 22:47:36,216 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 22:47:36,216 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 22:47:36,217 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 22:47:36,218 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 22:47:36,218 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 22:47:36,218 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 22:47:36,219 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 22:47:36,219 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 22:47:36,219 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 22:47:36,219 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 22:47:36,220 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-28 22:47:36,220 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-28 22:47:36,220 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 22:47:36,220 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 22:47:36,221 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 22:47:36,221 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 22:47:36,221 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 22:47:36,221 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 22:47:36,222 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 22:47:36,222 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 22:47:36,223 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-28 22:47:36,223 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-28 22:47:36,223 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 22:47:36,223 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-28 22:47:36,224 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_ec77acc1-cdfa-4093-8340-41a22c0e4f0c/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77acc1-cdfa-4093-8340-41a22c0e4f0c/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 16c93f411f7e7984964960171e6986ff89eb89f75783c8b2783bb47b46e751d9 [2021-10-28 22:47:36,652 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 22:47:36,679 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 22:47:36,682 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 22:47:36,684 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 22:47:36,686 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 22:47:36,690 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77acc1-cdfa-4093-8340-41a22c0e4f0c/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/ldv-memsafety/memleaks_test19-1.i [2021-10-28 22:47:36,779 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77acc1-cdfa-4093-8340-41a22c0e4f0c/bin/uautomizer-GMMbpWq8iD/data/dc5ecfffe/c9aa41fd7354487bb9ce5f5d4a32be5c/FLAGb2bd7ede3 [2021-10-28 22:47:37,489 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 22:47:37,489 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77acc1-cdfa-4093-8340-41a22c0e4f0c/sv-benchmarks/c/ldv-memsafety/memleaks_test19-1.i [2021-10-28 22:47:37,513 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77acc1-cdfa-4093-8340-41a22c0e4f0c/bin/uautomizer-GMMbpWq8iD/data/dc5ecfffe/c9aa41fd7354487bb9ce5f5d4a32be5c/FLAGb2bd7ede3 [2021-10-28 22:47:37,706 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77acc1-cdfa-4093-8340-41a22c0e4f0c/bin/uautomizer-GMMbpWq8iD/data/dc5ecfffe/c9aa41fd7354487bb9ce5f5d4a32be5c [2021-10-28 22:47:37,711 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 22:47:37,713 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 22:47:37,715 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 22:47:37,716 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 22:47:37,720 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 22:47:37,721 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:47:37" (1/1) ... [2021-10-28 22:47:37,723 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bca29e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:47:37, skipping insertion in model container [2021-10-28 22:47:37,723 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:47:37" (1/1) ... [2021-10-28 22:47:37,732 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 22:47:37,819 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 22:47:38,326 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 22:47:38,348 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-28 22:47:38,357 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 22:47:38,449 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 22:47:38,458 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 22:47:38,516 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 22:47:38,571 INFO L208 MainTranslator]: Completed translation [2021-10-28 22:47:38,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:47:38 WrapperNode [2021-10-28 22:47:38,572 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 22:47:38,573 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 22:47:38,573 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 22:47:38,574 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 22:47:38,587 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:47:38" (1/1) ... [2021-10-28 22:47:38,588 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:47:38" (1/1) ... [2021-10-28 22:47:38,617 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:47:38" (1/1) ... [2021-10-28 22:47:38,617 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:47:38" (1/1) ... [2021-10-28 22:47:38,680 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:47:38" (1/1) ... [2021-10-28 22:47:38,696 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:47:38" (1/1) ... [2021-10-28 22:47:38,716 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:47:38" (1/1) ... [2021-10-28 22:47:38,729 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 22:47:38,735 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 22:47:38,736 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 22:47:38,736 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 22:47:38,738 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:47:38" (1/1) ... [2021-10-28 22:47:38,746 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 22:47:38,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77acc1-cdfa-4093-8340-41a22c0e4f0c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:47:38,779 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77acc1-cdfa-4093-8340-41a22c0e4f0c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 22:47:38,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77acc1-cdfa-4093-8340-41a22c0e4f0c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 22:47:38,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-28 22:47:38,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 22:47:38,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-10-28 22:47:38,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-10-28 22:47:38,848 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-10-28 22:47:38,851 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-10-28 22:47:38,851 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-10-28 22:47:38,851 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-10-28 22:47:38,852 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-10-28 22:47:38,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-10-28 22:47:38,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-10-28 22:47:38,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-10-28 22:47:38,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-10-28 22:47:38,853 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-10-28 22:47:38,853 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-10-28 22:47:38,853 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-10-28 22:47:38,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-10-28 22:47:38,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-10-28 22:47:38,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-10-28 22:47:38,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-10-28 22:47:38,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-10-28 22:47:38,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-10-28 22:47:38,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-10-28 22:47:38,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-10-28 22:47:38,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-10-28 22:47:38,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-10-28 22:47:38,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-10-28 22:47:38,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-10-28 22:47:38,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-10-28 22:47:38,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-10-28 22:47:38,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-10-28 22:47:38,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-10-28 22:47:38,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-10-28 22:47:38,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-10-28 22:47:38,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-10-28 22:47:38,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-10-28 22:47:38,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-10-28 22:47:38,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-10-28 22:47:38,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-10-28 22:47:38,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-10-28 22:47:38,858 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-10-28 22:47:38,859 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-10-28 22:47:38,859 INFO L138 BoogieDeclarations]: Found implementation of procedure f19 [2021-10-28 22:47:38,859 INFO L138 BoogieDeclarations]: Found implementation of procedure f19_undo [2021-10-28 22:47:38,860 INFO L138 BoogieDeclarations]: Found implementation of procedure g19 [2021-10-28 22:47:38,860 INFO L138 BoogieDeclarations]: Found implementation of procedure probe_19 [2021-10-28 22:47:38,861 INFO L138 BoogieDeclarations]: Found implementation of procedure disconnect_19 [2021-10-28 22:47:38,861 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-10-28 22:47:38,861 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-28 22:47:38,862 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-10-28 22:47:38,862 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-10-28 22:47:38,862 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-10-28 22:47:38,863 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-10-28 22:47:38,863 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-10-28 22:47:38,863 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-10-28 22:47:38,863 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-10-28 22:47:38,864 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-10-28 22:47:38,864 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-10-28 22:47:38,864 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-10-28 22:47:38,865 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-10-28 22:47:38,865 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-10-28 22:47:38,865 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-10-28 22:47:38,867 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-10-28 22:47:38,867 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-10-28 22:47:38,868 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-10-28 22:47:38,869 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-10-28 22:47:38,869 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-10-28 22:47:38,869 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-10-28 22:47:38,869 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-10-28 22:47:38,898 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-10-28 22:47:38,898 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-10-28 22:47:38,899 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-10-28 22:47:38,899 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-10-28 22:47:38,899 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-10-28 22:47:38,899 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-10-28 22:47:38,899 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-10-28 22:47:38,899 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-10-28 22:47:38,899 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-10-28 22:47:38,899 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-10-28 22:47:38,900 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-10-28 22:47:38,901 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-10-28 22:47:38,901 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-10-28 22:47:38,901 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-10-28 22:47:38,901 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-10-28 22:47:38,901 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-10-28 22:47:38,902 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-10-28 22:47:38,902 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-10-28 22:47:38,902 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-10-28 22:47:38,902 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-10-28 22:47:38,902 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-10-28 22:47:38,903 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-10-28 22:47:38,903 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-10-28 22:47:38,903 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-10-28 22:47:38,903 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-10-28 22:47:38,903 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-10-28 22:47:38,903 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-10-28 22:47:38,904 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-10-28 22:47:38,904 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-10-28 22:47:38,904 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-10-28 22:47:38,904 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-10-28 22:47:38,904 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-10-28 22:47:38,905 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-10-28 22:47:38,905 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-10-28 22:47:38,905 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-10-28 22:47:38,906 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-10-28 22:47:38,906 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-10-28 22:47:38,906 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-10-28 22:47:38,906 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-10-28 22:47:38,906 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-10-28 22:47:38,907 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-10-28 22:47:38,907 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-10-28 22:47:38,907 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-10-28 22:47:38,907 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-10-28 22:47:38,907 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-10-28 22:47:38,907 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-10-28 22:47:38,908 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-28 22:47:38,908 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-10-28 22:47:38,908 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-10-28 22:47:38,908 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-10-28 22:47:38,909 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-10-28 22:47:38,909 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-10-28 22:47:38,909 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-10-28 22:47:38,910 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-10-28 22:47:38,911 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-10-28 22:47:38,914 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-10-28 22:47:38,914 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-10-28 22:47:38,915 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-10-28 22:47:38,915 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-10-28 22:47:38,916 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-10-28 22:47:38,917 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-10-28 22:47:38,918 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-10-28 22:47:38,918 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-10-28 22:47:38,919 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-10-28 22:47:38,924 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-10-28 22:47:38,924 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-10-28 22:47:38,924 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-10-28 22:47:38,925 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-10-28 22:47:38,925 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-10-28 22:47:38,925 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-10-28 22:47:38,925 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-10-28 22:47:38,925 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-10-28 22:47:38,925 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-10-28 22:47:38,926 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-10-28 22:47:38,926 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-10-28 22:47:38,926 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-10-28 22:47:38,926 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-10-28 22:47:38,926 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-10-28 22:47:38,927 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-10-28 22:47:38,927 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-10-28 22:47:38,927 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-10-28 22:47:38,927 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-10-28 22:47:38,927 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-10-28 22:47:38,927 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-10-28 22:47:38,928 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-10-28 22:47:38,928 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-10-28 22:47:38,928 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-10-28 22:47:38,928 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-10-28 22:47:38,928 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-10-28 22:47:38,928 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-10-28 22:47:38,929 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-10-28 22:47:38,929 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-28 22:47:38,929 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-10-28 22:47:38,929 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-10-28 22:47:38,929 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-10-28 22:47:38,930 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-10-28 22:47:38,930 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-10-28 22:47:38,930 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-28 22:47:38,930 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-10-28 22:47:38,930 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-10-28 22:47:38,930 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-10-28 22:47:38,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-28 22:47:38,931 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-10-28 22:47:38,931 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-10-28 22:47:38,931 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-10-28 22:47:38,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-28 22:47:38,931 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-10-28 22:47:38,932 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-10-28 22:47:38,932 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-10-28 22:47:38,932 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-10-28 22:47:38,933 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-10-28 22:47:38,933 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-10-28 22:47:38,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 22:47:38,933 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-10-28 22:47:38,933 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-10-28 22:47:38,934 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-10-28 22:47:38,934 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-10-28 22:47:38,934 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-10-28 22:47:38,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-28 22:47:38,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-28 22:47:38,934 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-10-28 22:47:38,935 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-10-28 22:47:38,935 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-10-28 22:47:38,935 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-10-28 22:47:38,935 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-10-28 22:47:38,935 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-10-28 22:47:38,936 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-10-28 22:47:38,936 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-10-28 22:47:38,936 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-10-28 22:47:38,936 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-10-28 22:47:38,936 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-10-28 22:47:38,936 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-10-28 22:47:38,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-10-28 22:47:38,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-10-28 22:47:38,937 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-10-28 22:47:38,937 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-10-28 22:47:38,937 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-10-28 22:47:38,938 INFO L130 BoogieDeclarations]: Found specification of procedure f19 [2021-10-28 22:47:38,938 INFO L130 BoogieDeclarations]: Found specification of procedure f19_undo [2021-10-28 22:47:38,938 INFO L130 BoogieDeclarations]: Found specification of procedure g19 [2021-10-28 22:47:38,938 INFO L130 BoogieDeclarations]: Found specification of procedure probe_19 [2021-10-28 22:47:38,938 INFO L130 BoogieDeclarations]: Found specification of procedure disconnect_19 [2021-10-28 22:47:38,938 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-10-28 22:47:38,939 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 22:47:38,939 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-28 22:47:38,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-28 22:47:38,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-28 22:47:38,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 22:47:38,940 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-10-28 22:47:38,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-10-28 22:47:38,940 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-10-28 22:47:38,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-10-28 22:47:38,940 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-10-28 22:47:39,787 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 22:47:40,229 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 22:47:40,650 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 22:47:40,651 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-10-28 22:47:40,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:47:40 BoogieIcfgContainer [2021-10-28 22:47:40,654 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 22:47:40,656 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 22:47:40,657 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 22:47:40,660 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 22:47:40,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 10:47:37" (1/3) ... [2021-10-28 22:47:40,661 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40a77e54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 10:47:40, skipping insertion in model container [2021-10-28 22:47:40,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:47:38" (2/3) ... [2021-10-28 22:47:40,662 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40a77e54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 10:47:40, skipping insertion in model container [2021-10-28 22:47:40,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:47:40" (3/3) ... [2021-10-28 22:47:40,664 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test19-1.i [2021-10-28 22:47:40,670 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 22:47:40,670 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 94 error locations. [2021-10-28 22:47:40,722 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 22:47:40,729 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 22:47:40,730 INFO L340 AbstractCegarLoop]: Starting to check reachability of 94 error locations. [2021-10-28 22:47:40,751 INFO L276 IsEmpty]: Start isEmpty. Operand has 161 states, 86 states have (on average 1.6046511627906976) internal successors, (138), 129 states have internal predecessors, (138), 18 states have call successors, (18), 15 states have call predecessors, (18), 15 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2021-10-28 22:47:40,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-28 22:47:40,761 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:47:40,761 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:47:40,762 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting probe_19Err0REQUIRES_VIOLATION === [f19_undoErr0REQUIRES_VIOLATION, f19_undoErr1REQUIRES_VIOLATION, f19_undoErr2ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr3ASSERT_VIOLATIONMEMORY_FREE (and 90 more)] === [2021-10-28 22:47:40,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:47:40,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1164629906, now seen corresponding path program 1 times [2021-10-28 22:47:40,784 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 22:47:40,785 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1914114405] [2021-10-28 22:47:40,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:47:40,786 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 22:47:40,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77acc1-cdfa-4093-8340-41a22c0e4f0c/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 22:47:40,790 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77acc1-cdfa-4093-8340-41a22c0e4f0c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 22:47:40,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77acc1-cdfa-4093-8340-41a22c0e4f0c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-28 22:47:41,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:47:41,034 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-28 22:47:41,042 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:47:41,149 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-28 22:47:41,379 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-10-28 22:47:41,380 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 21 [2021-10-28 22:47:41,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:47:41,438 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 22:47:41,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:47:41,778 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 22:47:41,778 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1914114405] [2021-10-28 22:47:41,779 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1914114405] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 22:47:41,779 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:47:41,780 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 5] imperfect sequences [] total 7 [2021-10-28 22:47:41,782 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854132649] [2021-10-28 22:47:41,788 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 22:47:41,788 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 22:47:41,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 22:47:41,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-10-28 22:47:41,813 INFO L87 Difference]: Start difference. First operand has 161 states, 86 states have (on average 1.6046511627906976) internal successors, (138), 129 states have internal predecessors, (138), 18 states have call successors, (18), 15 states have call predecessors, (18), 15 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 8 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 7 states have internal predecessors, (11), 3 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-28 22:47:44,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:47:44,866 INFO L93 Difference]: Finished difference Result 166 states and 190 transitions. [2021-10-28 22:47:44,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 22:47:44,868 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 7 states have internal predecessors, (11), 3 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 15 [2021-10-28 22:47:44,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 22:47:44,879 INFO L225 Difference]: With dead ends: 166 [2021-10-28 22:47:44,880 INFO L226 Difference]: Without dead ends: 163 [2021-10-28 22:47:44,881 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 18 SyntacticMatches, 5 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2021-10-28 22:47:44,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2021-10-28 22:47:44,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 87. [2021-10-28 22:47:44,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 46 states have (on average 1.608695652173913) internal successors, (74), 68 states have internal predecessors, (74), 11 states have call successors, (11), 9 states have call predecessors, (11), 8 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2021-10-28 22:47:44,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 95 transitions. [2021-10-28 22:47:44,931 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 95 transitions. Word has length 15 [2021-10-28 22:47:44,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 22:47:44,931 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 95 transitions. [2021-10-28 22:47:44,932 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 7 states have internal predecessors, (11), 3 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-28 22:47:44,932 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 95 transitions. [2021-10-28 22:47:44,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-28 22:47:44,933 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:47:44,934 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:47:44,950 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77acc1-cdfa-4093-8340-41a22c0e4f0c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-28 22:47:45,151 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77acc1-cdfa-4093-8340-41a22c0e4f0c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 22:47:45,152 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting probe_19Err1REQUIRES_VIOLATION === [f19_undoErr0REQUIRES_VIOLATION, f19_undoErr1REQUIRES_VIOLATION, f19_undoErr2ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr3ASSERT_VIOLATIONMEMORY_FREE (and 90 more)] === [2021-10-28 22:47:45,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:47:45,158 INFO L85 PathProgramCache]: Analyzing trace with hash -1164629905, now seen corresponding path program 1 times [2021-10-28 22:47:45,159 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 22:47:45,159 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1032756016] [2021-10-28 22:47:45,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:47:45,160 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 22:47:45,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77acc1-cdfa-4093-8340-41a22c0e4f0c/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 22:47:45,161 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77acc1-cdfa-4093-8340-41a22c0e4f0c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 22:47:45,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77acc1-cdfa-4093-8340-41a22c0e4f0c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-28 22:47:45,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:47:45,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-28 22:47:45,368 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:47:45,414 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-28 22:47:45,421 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-28 22:47:47,726 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-10-28 22:47:47,726 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 31 [2021-10-28 22:47:47,743 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-28 22:47:47,743 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 23 [2021-10-28 22:47:47,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:47:47,792 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 22:48:01,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:48:01,879 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 22:48:01,879 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1032756016] [2021-10-28 22:48:01,879 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1032756016] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 22:48:01,879 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:48:01,880 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2021-10-28 22:48:01,880 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914532584] [2021-10-28 22:48:01,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-28 22:48:01,881 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 22:48:01,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-28 22:48:01,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=145, Unknown=4, NotChecked=0, Total=182 [2021-10-28 22:48:01,883 INFO L87 Difference]: Start difference. First operand 87 states and 95 transitions. Second operand has 14 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 10 states have internal predecessors, (14), 5 states have call successors, (7), 5 states have call predecessors, (7), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-10-28 22:52:16,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:52:16,645 INFO L93 Difference]: Finished difference Result 161 states and 188 transitions. [2021-10-28 22:52:16,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-28 22:52:16,647 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 10 states have internal predecessors, (14), 5 states have call successors, (7), 5 states have call predecessors, (7), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 15 [2021-10-28 22:52:16,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 22:52:16,650 INFO L225 Difference]: With dead ends: 161 [2021-10-28 22:52:16,650 INFO L226 Difference]: Without dead ends: 161 [2021-10-28 22:52:16,651 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 41.8s TimeCoverageRelationStatistics Valid=115, Invalid=420, Unknown=17, NotChecked=0, Total=552 [2021-10-28 22:52:16,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2021-10-28 22:52:16,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 84. [2021-10-28 22:52:16,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 46 states have (on average 1.5217391304347827) internal successors, (70), 65 states have internal predecessors, (70), 11 states have call successors, (11), 9 states have call predecessors, (11), 8 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2021-10-28 22:52:16,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 91 transitions. [2021-10-28 22:52:16,663 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 91 transitions. Word has length 15 [2021-10-28 22:52:16,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 22:52:16,664 INFO L470 AbstractCegarLoop]: Abstraction has 84 states and 91 transitions. [2021-10-28 22:52:16,664 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 10 states have internal predecessors, (14), 5 states have call successors, (7), 5 states have call predecessors, (7), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-10-28 22:52:16,664 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 91 transitions. [2021-10-28 22:52:16,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-28 22:52:16,665 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:52:16,665 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:52:16,679 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77acc1-cdfa-4093-8340-41a22c0e4f0c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-28 22:52:16,866 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77acc1-cdfa-4093-8340-41a22c0e4f0c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 22:52:16,866 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting f19Err0REQUIRES_VIOLATION === [f19_undoErr0REQUIRES_VIOLATION, f19_undoErr1REQUIRES_VIOLATION, f19_undoErr2ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr3ASSERT_VIOLATIONMEMORY_FREE (and 90 more)] === [2021-10-28 22:52:16,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:52:16,867 INFO L85 PathProgramCache]: Analyzing trace with hash -1030331904, now seen corresponding path program 1 times [2021-10-28 22:52:16,867 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 22:52:16,867 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1587981185] [2021-10-28 22:52:16,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:52:16,868 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 22:52:16,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77acc1-cdfa-4093-8340-41a22c0e4f0c/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 22:52:16,869 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77acc1-cdfa-4093-8340-41a22c0e4f0c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 22:52:16,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77acc1-cdfa-4093-8340-41a22c0e4f0c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-28 22:52:17,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:52:17,071 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-28 22:52:17,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:52:17,355 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-10-28 22:52:17,355 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 24 [2021-10-28 22:52:17,420 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:52:17,420 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 22:52:17,778 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:52:17,778 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 22:52:17,779 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1587981185] [2021-10-28 22:52:17,779 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1587981185] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 22:52:17,779 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:52:17,779 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 5] imperfect sequences [] total 7 [2021-10-28 22:52:17,779 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117978717] [2021-10-28 22:52:17,780 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 22:52:17,780 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 22:52:17,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 22:52:17,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-10-28 22:52:17,781 INFO L87 Difference]: Start difference. First operand 84 states and 91 transitions. Second operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-28 22:52:19,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:52:19,089 INFO L93 Difference]: Finished difference Result 151 states and 175 transitions. [2021-10-28 22:52:19,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-28 22:52:19,090 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 26 [2021-10-28 22:52:19,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 22:52:19,092 INFO L225 Difference]: With dead ends: 151 [2021-10-28 22:52:19,092 INFO L226 Difference]: Without dead ends: 151 [2021-10-28 22:52:19,093 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 40 SyntacticMatches, 6 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2021-10-28 22:52:19,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2021-10-28 22:52:19,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 82. [2021-10-28 22:52:19,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 46 states have (on average 1.4782608695652173) internal successors, (68), 63 states have internal predecessors, (68), 11 states have call successors, (11), 9 states have call predecessors, (11), 8 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2021-10-28 22:52:19,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 89 transitions. [2021-10-28 22:52:19,103 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 89 transitions. Word has length 26 [2021-10-28 22:52:19,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 22:52:19,104 INFO L470 AbstractCegarLoop]: Abstraction has 82 states and 89 transitions. [2021-10-28 22:52:19,104 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-28 22:52:19,104 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 89 transitions. [2021-10-28 22:52:19,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-28 22:52:19,105 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:52:19,105 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:52:19,137 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77acc1-cdfa-4093-8340-41a22c0e4f0c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-28 22:52:19,337 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77acc1-cdfa-4093-8340-41a22c0e4f0c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 22:52:19,338 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting f19Err1REQUIRES_VIOLATION === [f19_undoErr0REQUIRES_VIOLATION, f19_undoErr1REQUIRES_VIOLATION, f19_undoErr2ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr3ASSERT_VIOLATIONMEMORY_FREE (and 90 more)] === [2021-10-28 22:52:19,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:52:19,339 INFO L85 PathProgramCache]: Analyzing trace with hash -1030331903, now seen corresponding path program 1 times [2021-10-28 22:52:19,339 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 22:52:19,340 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1345285468] [2021-10-28 22:52:19,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:52:19,340 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 22:52:19,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77acc1-cdfa-4093-8340-41a22c0e4f0c/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 22:52:19,341 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77acc1-cdfa-4093-8340-41a22c0e4f0c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 22:52:19,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77acc1-cdfa-4093-8340-41a22c0e4f0c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-28 22:52:19,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:52:19,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 21 conjunts are in the unsatisfiable core [2021-10-28 22:52:19,540 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:52:19,603 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-28 22:52:22,091 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-10-28 22:52:22,092 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 39 [2021-10-28 22:52:22,110 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-28 22:52:22,110 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 31 [2021-10-28 22:52:22,172 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:52:22,172 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 22:52:35,395 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-10-28 22:52:35,395 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2021-10-28 22:52:35,992 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 86 treesize of output 82 [2021-10-28 22:52:41,065 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:52:41,066 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 22:52:41,066 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1345285468] [2021-10-28 22:52:41,066 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1345285468] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 22:52:41,066 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:52:41,066 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 11] imperfect sequences [] total 20 [2021-10-28 22:52:41,066 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966388814] [2021-10-28 22:52:41,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-28 22:52:41,067 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 22:52:41,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-28 22:52:41,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=359, Unknown=6, NotChecked=0, Total=420 [2021-10-28 22:52:41,068 INFO L87 Difference]: Start difference. First operand 82 states and 89 transitions. Second operand has 21 states, 15 states have (on average 1.8) internal successors, (27), 14 states have internal predecessors, (27), 9 states have call successors, (11), 7 states have call predecessors, (11), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-10-28 22:57:04,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:57:04,799 INFO L93 Difference]: Finished difference Result 141 states and 165 transitions. [2021-10-28 22:57:04,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-28 22:57:04,800 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 15 states have (on average 1.8) internal successors, (27), 14 states have internal predecessors, (27), 9 states have call successors, (11), 7 states have call predecessors, (11), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 26 [2021-10-28 22:57:04,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 22:57:04,801 INFO L225 Difference]: With dead ends: 141 [2021-10-28 22:57:04,801 INFO L226 Difference]: Without dead ends: 141 [2021-10-28 22:57:04,802 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 62.7s TimeCoverageRelationStatistics Valid=245, Invalid=1294, Unknown=21, NotChecked=0, Total=1560 [2021-10-28 22:57:04,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2021-10-28 22:57:04,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 86. [2021-10-28 22:57:04,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 50 states have (on average 1.42) internal successors, (71), 66 states have internal predecessors, (71), 11 states have call successors, (11), 9 states have call predecessors, (11), 9 states have return successors, (12), 11 states have call predecessors, (12), 10 states have call successors, (12) [2021-10-28 22:57:04,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 94 transitions. [2021-10-28 22:57:04,815 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 94 transitions. Word has length 26 [2021-10-28 22:57:04,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 22:57:04,816 INFO L470 AbstractCegarLoop]: Abstraction has 86 states and 94 transitions. [2021-10-28 22:57:04,816 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 15 states have (on average 1.8) internal successors, (27), 14 states have internal predecessors, (27), 9 states have call successors, (11), 7 states have call predecessors, (11), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-10-28 22:57:04,816 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 94 transitions. [2021-10-28 22:57:04,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-28 22:57:04,817 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:57:04,818 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:57:04,829 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77acc1-cdfa-4093-8340-41a22c0e4f0c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-10-28 22:57:05,021 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77acc1-cdfa-4093-8340-41a22c0e4f0c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 22:57:05,022 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting disconnect_19Err0REQUIRES_VIOLATION === [f19_undoErr0REQUIRES_VIOLATION, f19_undoErr1REQUIRES_VIOLATION, f19_undoErr2ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr3ASSERT_VIOLATIONMEMORY_FREE (and 90 more)] === [2021-10-28 22:57:05,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:57:05,022 INFO L85 PathProgramCache]: Analyzing trace with hash 895813422, now seen corresponding path program 1 times [2021-10-28 22:57:05,022 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 22:57:05,022 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2133361312] [2021-10-28 22:57:05,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:57:05,023 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 22:57:05,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77acc1-cdfa-4093-8340-41a22c0e4f0c/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 22:57:05,023 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77acc1-cdfa-4093-8340-41a22c0e4f0c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 22:57:05,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77acc1-cdfa-4093-8340-41a22c0e4f0c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-28 22:57:05,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:57:05,242 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 22:57:05,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:57:05,306 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 18 treesize of output 14 [2021-10-28 22:57:05,352 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2021-10-28 22:57:05,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:57:05,408 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 22:57:05,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:57:05,591 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 22:57:05,591 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2133361312] [2021-10-28 22:57:05,591 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2133361312] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 22:57:05,591 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:57:05,592 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-10-28 22:57:05,592 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445199683] [2021-10-28 22:57:05,592 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 22:57:05,592 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 22:57:05,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 22:57:05,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-28 22:57:05,593 INFO L87 Difference]: Start difference. First operand 86 states and 94 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 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) [2021-10-28 22:57:05,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:57:05,741 INFO L93 Difference]: Finished difference Result 91 states and 100 transitions. [2021-10-28 22:57:05,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 22:57:05,741 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 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 26 [2021-10-28 22:57:05,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 22:57:05,742 INFO L225 Difference]: With dead ends: 91 [2021-10-28 22:57:05,743 INFO L226 Difference]: Without dead ends: 91 [2021-10-28 22:57:05,745 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-10-28 22:57:05,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2021-10-28 22:57:05,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 90. [2021-10-28 22:57:05,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 54 states have (on average 1.3888888888888888) internal successors, (75), 69 states have internal predecessors, (75), 11 states have call successors, (11), 9 states have call predecessors, (11), 9 states have return successors, (12), 12 states have call predecessors, (12), 10 states have call successors, (12) [2021-10-28 22:57:05,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 98 transitions. [2021-10-28 22:57:05,753 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 98 transitions. Word has length 26 [2021-10-28 22:57:05,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 22:57:05,754 INFO L470 AbstractCegarLoop]: Abstraction has 90 states and 98 transitions. [2021-10-28 22:57:05,754 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 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) [2021-10-28 22:57:05,754 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 98 transitions. [2021-10-28 22:57:05,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-28 22:57:05,755 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:57:05,756 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:57:05,770 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77acc1-cdfa-4093-8340-41a22c0e4f0c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-28 22:57:05,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77acc1-cdfa-4093-8340-41a22c0e4f0c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 22:57:05,966 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting disconnect_19Err0REQUIRES_VIOLATION === [f19_undoErr0REQUIRES_VIOLATION, f19_undoErr1REQUIRES_VIOLATION, f19_undoErr2ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr3ASSERT_VIOLATIONMEMORY_FREE (and 90 more)] === [2021-10-28 22:57:05,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:57:05,966 INFO L85 PathProgramCache]: Analyzing trace with hash -1891602065, now seen corresponding path program 1 times [2021-10-28 22:57:05,966 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 22:57:05,966 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2026977311] [2021-10-28 22:57:05,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:57:05,967 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 22:57:05,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77acc1-cdfa-4093-8340-41a22c0e4f0c/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 22:57:05,967 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77acc1-cdfa-4093-8340-41a22c0e4f0c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 22:57:05,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77acc1-cdfa-4093-8340-41a22c0e4f0c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-28 22:57:06,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:57:06,198 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 22:57:06,199 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:57:06,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:57:06,327 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 22:57:06,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:57:06,570 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 22:57:06,571 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2026977311] [2021-10-28 22:57:06,571 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2026977311] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 22:57:06,571 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:57:06,571 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-10-28 22:57:06,571 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901313179] [2021-10-28 22:57:06,571 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 22:57:06,572 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 22:57:06,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 22:57:06,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-10-28 22:57:06,572 INFO L87 Difference]: Start difference. First operand 90 states and 98 transitions. Second operand has 10 states, 10 states have (on average 2.6) internal successors, (26), 8 states have internal predecessors, (26), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2021-10-28 22:57:06,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:57:06,689 INFO L93 Difference]: Finished difference Result 105 states and 113 transitions. [2021-10-28 22:57:06,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 22:57:06,690 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.6) internal successors, (26), 8 states have internal predecessors, (26), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) Word has length 26 [2021-10-28 22:57:06,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 22:57:06,691 INFO L225 Difference]: With dead ends: 105 [2021-10-28 22:57:06,691 INFO L226 Difference]: Without dead ends: 105 [2021-10-28 22:57:06,692 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-10-28 22:57:06,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2021-10-28 22:57:06,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 94. [2021-10-28 22:57:06,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 57 states have (on average 1.368421052631579) internal successors, (78), 72 states have internal predecessors, (78), 11 states have call successors, (11), 9 states have call predecessors, (11), 10 states have return successors, (13), 13 states have call predecessors, (13), 10 states have call successors, (13) [2021-10-28 22:57:06,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 102 transitions. [2021-10-28 22:57:06,699 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 102 transitions. Word has length 26 [2021-10-28 22:57:06,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 22:57:06,700 INFO L470 AbstractCegarLoop]: Abstraction has 94 states and 102 transitions. [2021-10-28 22:57:06,700 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.6) internal successors, (26), 8 states have internal predecessors, (26), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2021-10-28 22:57:06,700 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 102 transitions. [2021-10-28 22:57:06,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-28 22:57:06,701 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:57:06,702 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:57:06,714 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77acc1-cdfa-4093-8340-41a22c0e4f0c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-28 22:57:06,909 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77acc1-cdfa-4093-8340-41a22c0e4f0c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 22:57:06,912 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting f19Err3REQUIRES_VIOLATION === [f19_undoErr0REQUIRES_VIOLATION, f19_undoErr1REQUIRES_VIOLATION, f19_undoErr2ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr3ASSERT_VIOLATIONMEMORY_FREE (and 90 more)] === [2021-10-28 22:57:06,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:57:06,913 INFO L85 PathProgramCache]: Analyzing trace with hash 1988486402, now seen corresponding path program 1 times [2021-10-28 22:57:06,913 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 22:57:06,913 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1703373964] [2021-10-28 22:57:06,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:57:06,913 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 22:57:06,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77acc1-cdfa-4093-8340-41a22c0e4f0c/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 22:57:06,914 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77acc1-cdfa-4093-8340-41a22c0e4f0c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 22:57:06,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77acc1-cdfa-4093-8340-41a22c0e4f0c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-28 22:57:07,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:57:07,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 22:57:07,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:57:07,339 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-28 22:57:07,339 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 22:57:07,436 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 8 treesize of output 6 [2021-10-28 22:57:07,903 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-28 22:57:07,903 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 22:57:07,903 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1703373964] [2021-10-28 22:57:07,903 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1703373964] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 22:57:07,903 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:57:07,904 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2021-10-28 22:57:07,904 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873380958] [2021-10-28 22:57:07,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-28 22:57:07,904 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 22:57:07,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-28 22:57:07,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2021-10-28 22:57:07,905 INFO L87 Difference]: Start difference. First operand 94 states and 102 transitions. Second operand has 14 states, 11 states have (on average 2.272727272727273) internal successors, (25), 10 states have internal predecessors, (25), 7 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-10-28 22:57:08,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:57:08,302 INFO L93 Difference]: Finished difference Result 93 states and 101 transitions. [2021-10-28 22:57:08,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 22:57:08,303 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 11 states have (on average 2.272727272727273) internal successors, (25), 10 states have internal predecessors, (25), 7 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 28 [2021-10-28 22:57:08,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 22:57:08,304 INFO L225 Difference]: With dead ends: 93 [2021-10-28 22:57:08,304 INFO L226 Difference]: Without dead ends: 93 [2021-10-28 22:57:08,304 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2021-10-28 22:57:08,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2021-10-28 22:57:08,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 90. [2021-10-28 22:57:08,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 54 states have (on average 1.3703703703703705) internal successors, (74), 69 states have internal predecessors, (74), 11 states have call successors, (11), 9 states have call predecessors, (11), 10 states have return successors, (13), 12 states have call predecessors, (13), 10 states have call successors, (13) [2021-10-28 22:57:08,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 98 transitions. [2021-10-28 22:57:08,311 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 98 transitions. Word has length 28 [2021-10-28 22:57:08,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 22:57:08,312 INFO L470 AbstractCegarLoop]: Abstraction has 90 states and 98 transitions. [2021-10-28 22:57:08,312 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 11 states have (on average 2.272727272727273) internal successors, (25), 10 states have internal predecessors, (25), 7 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-10-28 22:57:08,312 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 98 transitions. [2021-10-28 22:57:08,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-28 22:57:08,313 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:57:08,313 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:57:08,329 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77acc1-cdfa-4093-8340-41a22c0e4f0c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-28 22:57:08,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77acc1-cdfa-4093-8340-41a22c0e4f0c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 22:57:08,529 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [f19_undoErr0REQUIRES_VIOLATION, f19_undoErr1REQUIRES_VIOLATION, f19_undoErr2ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr3ASSERT_VIOLATIONMEMORY_FREE (and 90 more)] === [2021-10-28 22:57:08,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:57:08,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1490464698, now seen corresponding path program 1 times [2021-10-28 22:57:08,530 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 22:57:08,530 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1890428615] [2021-10-28 22:57:08,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:57:08,530 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 22:57:08,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77acc1-cdfa-4093-8340-41a22c0e4f0c/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 22:57:08,531 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77acc1-cdfa-4093-8340-41a22c0e4f0c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 22:57:08,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77acc1-cdfa-4093-8340-41a22c0e4f0c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-28 22:57:08,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:57:08,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-28 22:57:08,781 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:57:08,822 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-10-28 22:57:08,822 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2021-10-28 22:57:13,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:57:13,319 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 22:57:24,144 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 22:57:24,144 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1890428615] [2021-10-28 22:57:24,144 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(= (store |v_old(#valid)_BEFORE_CALL_5| |v_entry_point_~#a19~0.base_18| (_ bv0 1)) v_prenex_3)=(= (select (store |v_old(#valid)_BEFORE_CALL_5| |v_entry_point_~#a19~0.base_18| (_ bv0 1)) v_antiDerIndex_entry0_1) (select v_prenex_3 v_antiDerIndex_entry0_1))} [2021-10-28 22:57:24,144 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [63711867] [2021-10-28 22:57:24,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:57:24,145 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-28 22:57:24,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77acc1-cdfa-4093-8340-41a22c0e4f0c/bin/uautomizer-GMMbpWq8iD/cvc4 [2021-10-28 22:57:24,151 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77acc1-cdfa-4093-8340-41a22c0e4f0c/bin/uautomizer-GMMbpWq8iD/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-28 22:57:24,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77acc1-cdfa-4093-8340-41a22c0e4f0c/bin/uautomizer-GMMbpWq8iD/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2021-10-28 22:57:24,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:57:24,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-28 22:57:24,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:57:24,652 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-10-28 22:57:24,652 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 24 treesize of output 27 [2021-10-28 22:57:29,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:57:29,073 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 22:57:41,884 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(= (store |v_old(#valid)_BEFORE_CALL_10| |v_entry_point_~#a19~0.base_18| (_ bv0 1)) v_prenex_5)=(= (select (store |v_old(#valid)_BEFORE_CALL_10| |v_entry_point_~#a19~0.base_18| (_ bv0 1)) v_antiDerIndex_entry0_2) (select v_prenex_5 v_antiDerIndex_entry0_2))} [2021-10-28 22:57:41,884 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1797015538] [2021-10-28 22:57:41,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:57:41,884 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 22:57:41,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77acc1-cdfa-4093-8340-41a22c0e4f0c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:57:41,888 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77acc1-cdfa-4093-8340-41a22c0e4f0c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 22:57:41,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77acc1-cdfa-4093-8340-41a22c0e4f0c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-10-28 22:57:42,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:57:42,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-28 22:57:42,199 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:57:44,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:57:44,403 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 22:57:55,211 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(= (store |v_old(#valid)_BEFORE_CALL_15| |v_entry_point_~#a19~0.base_18| (_ bv0 1)) v_prenex_9)=(= (select v_prenex_9 v_antiDerIndex_entry0_3) (select (store |v_old(#valid)_BEFORE_CALL_15| |v_entry_point_~#a19~0.base_18| (_ bv0 1)) v_antiDerIndex_entry0_3))} [2021-10-28 22:57:55,211 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:57:55,211 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-10-28 22:57:55,211 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-10-28 22:57:55,211 INFO L627 BasicCegarLoop]: Counterexample might be feasible [2021-10-28 22:57:55,217 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-10-28 22:57:55,219 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location f19_undoErr0REQUIRES_VIOLATION [2021-10-28 22:57:55,219 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location f19_undoErr1REQUIRES_VIOLATION [2021-10-28 22:57:55,219 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location f19_undoErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 22:57:55,220 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location f19_undoErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 22:57:55,220 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location f19_undoErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 22:57:55,220 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location f19Err0REQUIRES_VIOLATION [2021-10-28 22:57:55,220 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location f19Err1REQUIRES_VIOLATION [2021-10-28 22:57:55,220 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location f19Err2REQUIRES_VIOLATION [2021-10-28 22:57:55,220 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location f19Err3REQUIRES_VIOLATION [2021-10-28 22:57:55,221 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION [2021-10-28 22:57:55,221 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION [2021-10-28 22:57:55,221 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe_19Err0REQUIRES_VIOLATION [2021-10-28 22:57:55,221 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe_19Err1REQUIRES_VIOLATION [2021-10-28 22:57:55,221 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe_19Err2REQUIRES_VIOLATION [2021-10-28 22:57:55,222 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe_19Err3REQUIRES_VIOLATION [2021-10-28 22:57:55,222 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe_19Err4REQUIRES_VIOLATION [2021-10-28 22:57:55,222 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe_19Err5REQUIRES_VIOLATION [2021-10-28 22:57:55,222 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe_19Err6ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 22:57:55,222 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe_19Err7ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 22:57:55,223 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe_19Err8ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 22:57:55,223 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION [2021-10-28 22:57:55,223 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION [2021-10-28 22:57:55,223 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location disconnect_19Err0REQUIRES_VIOLATION [2021-10-28 22:57:55,223 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location disconnect_19Err1REQUIRES_VIOLATION [2021-10-28 22:57:55,224 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location disconnect_19Err2ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 22:57:55,224 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location disconnect_19Err3ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 22:57:55,224 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location disconnect_19Err4ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 22:57:55,224 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION [2021-10-28 22:57:55,224 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION [2021-10-28 22:57:55,224 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION [2021-10-28 22:57:55,225 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION [2021-10-28 22:57:55,225 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION [2021-10-28 22:57:55,225 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION [2021-10-28 22:57:55,225 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION [2021-10-28 22:57:55,225 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION [2021-10-28 22:57:55,226 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION [2021-10-28 22:57:55,226 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION [2021-10-28 22:57:55,226 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION [2021-10-28 22:57:55,226 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION [2021-10-28 22:57:55,226 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION [2021-10-28 22:57:55,226 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION [2021-10-28 22:57:55,227 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION [2021-10-28 22:57:55,227 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION [2021-10-28 22:57:55,227 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION [2021-10-28 22:57:55,227 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION [2021-10-28 22:57:55,227 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION [2021-10-28 22:57:55,228 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION [2021-10-28 22:57:55,228 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION [2021-10-28 22:57:55,228 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION [2021-10-28 22:57:55,228 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION [2021-10-28 22:57:55,228 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION [2021-10-28 22:57:55,228 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION [2021-10-28 22:57:55,229 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION [2021-10-28 22:57:55,229 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION [2021-10-28 22:57:55,229 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION [2021-10-28 22:57:55,229 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION [2021-10-28 22:57:55,229 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION [2021-10-28 22:57:55,229 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION [2021-10-28 22:57:55,230 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION [2021-10-28 22:57:55,230 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION [2021-10-28 22:57:55,230 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION [2021-10-28 22:57:55,230 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION [2021-10-28 22:57:55,230 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION [2021-10-28 22:57:55,231 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION [2021-10-28 22:57:55,231 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION [2021-10-28 22:57:55,231 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 22:57:55,231 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 22:57:55,231 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 22:57:55,232 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 22:57:55,232 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 22:57:55,232 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 22:57:55,232 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION [2021-10-28 22:57:55,232 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION [2021-10-28 22:57:55,232 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION [2021-10-28 22:57:55,233 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION [2021-10-28 22:57:55,233 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION [2021-10-28 22:57:55,233 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION [2021-10-28 22:57:55,233 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION [2021-10-28 22:57:55,233 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION [2021-10-28 22:57:55,234 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 22:57:55,234 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 22:57:55,234 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 22:57:55,234 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 22:57:55,234 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 22:57:55,235 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 22:57:55,235 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION [2021-10-28 22:57:55,235 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION [2021-10-28 22:57:55,235 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION [2021-10-28 22:57:55,235 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION [2021-10-28 22:57:55,236 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION [2021-10-28 22:57:55,236 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION [2021-10-28 22:57:55,236 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION [2021-10-28 22:57:55,236 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION [2021-10-28 22:57:55,275 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77acc1-cdfa-4093-8340-41a22c0e4f0c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-10-28 22:57:55,469 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77acc1-cdfa-4093-8340-41a22c0e4f0c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-28 22:57:55,665 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77acc1-cdfa-4093-8340-41a22c0e4f0c/bin/uautomizer-GMMbpWq8iD/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2021-10-28 22:57:55,862 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77acc1-cdfa-4093-8340-41a22c0e4f0c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77acc1-cdfa-4093-8340-41a22c0e4f0c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77acc1-cdfa-4093-8340-41a22c0e4f0c/bin/uautomizer-GMMbpWq8iD/cvc4 --incremental --print-success --lang smt [2021-10-28 22:57:55,864 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:57:55,867 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 22:57:55,870 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-10-28 22:57:55,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 10:57:55 BoogieIcfgContainer [2021-10-28 22:57:55,879 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 22:57:55,880 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 22:57:55,880 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 22:57:55,881 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 22:57:55,881 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:47:40" (3/4) ... [2021-10-28 22:57:55,884 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 22:57:55,884 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 22:57:55,885 INFO L168 Benchmark]: Toolchain (without parser) took 618171.68 ms. Allocated memory was 86.0 MB in the beginning and 138.4 MB in the end (delta: 52.4 MB). Free memory was 50.0 MB in the beginning and 82.7 MB in the end (delta: -32.7 MB). Peak memory consumption was 21.6 MB. Max. memory is 16.1 GB. [2021-10-28 22:57:55,886 INFO L168 Benchmark]: CDTParser took 0.78 ms. Allocated memory is still 86.0 MB. Free memory was 68.3 MB in the beginning and 68.2 MB in the end (delta: 75.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 22:57:55,887 INFO L168 Benchmark]: CACSL2BoogieTranslator took 856.81 ms. Allocated memory is still 86.0 MB. Free memory was 49.8 MB in the beginning and 50.3 MB in the end (delta: -527.1 kB). Peak memory consumption was 8.7 MB. Max. memory is 16.1 GB. [2021-10-28 22:57:55,887 INFO L168 Benchmark]: Boogie Preprocessor took 161.44 ms. Allocated memory is still 86.0 MB. Free memory was 50.3 MB in the beginning and 45.3 MB in the end (delta: 5.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-28 22:57:55,888 INFO L168 Benchmark]: RCFGBuilder took 1918.97 ms. Allocated memory was 86.0 MB in the beginning and 115.3 MB in the end (delta: 29.4 MB). Free memory was 45.3 MB in the beginning and 81.0 MB in the end (delta: -35.6 MB). Peak memory consumption was 16.9 MB. Max. memory is 16.1 GB. [2021-10-28 22:57:55,888 INFO L168 Benchmark]: TraceAbstraction took 615223.09 ms. Allocated memory was 115.3 MB in the beginning and 138.4 MB in the end (delta: 23.1 MB). Free memory was 80.4 MB in the beginning and 82.7 MB in the end (delta: -2.3 MB). Peak memory consumption was 20.8 MB. Max. memory is 16.1 GB. [2021-10-28 22:57:55,889 INFO L168 Benchmark]: Witness Printer took 4.01 ms. Allocated memory is still 138.4 MB. Free memory is still 82.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 22:57:55,891 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.78 ms. Allocated memory is still 86.0 MB. Free memory was 68.3 MB in the beginning and 68.2 MB in the end (delta: 75.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 856.81 ms. Allocated memory is still 86.0 MB. Free memory was 49.8 MB in the beginning and 50.3 MB in the end (delta: -527.1 kB). Peak memory consumption was 8.7 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 161.44 ms. Allocated memory is still 86.0 MB. Free memory was 50.3 MB in the beginning and 45.3 MB in the end (delta: 5.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1918.97 ms. Allocated memory was 86.0 MB in the beginning and 115.3 MB in the end (delta: 29.4 MB). Free memory was 45.3 MB in the beginning and 81.0 MB in the end (delta: -35.6 MB). Peak memory consumption was 16.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 615223.09 ms. Allocated memory was 115.3 MB in the beginning and 138.4 MB in the end (delta: 23.1 MB). Free memory was 80.4 MB in the beginning and 82.7 MB in the end (delta: -2.3 MB). Peak memory consumption was 20.8 MB. Max. memory is 16.1 GB. * Witness Printer took 4.01 ms. Allocated memory is still 138.4 MB. Free memory is still 82.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 804]: 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 804. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L805] CALL entry_point() [L798] struct A19 a19; [L799] CALL, EXPR probe_19(&a19) [L774] int ret = - -3; [L775] CALL, EXPR ldv_malloc(sizeof(int)) [L526] COND FALSE !(__VERIFIER_nondet_int()) [L529] return 0; [L775] RET, EXPR ldv_malloc(sizeof(int)) [L775] a->q = (int *)ldv_malloc(sizeof(int)) [L776] EXPR a->q [L776] COND TRUE !a->q [L791] return ret; [L799] RET, EXPR probe_19(&a19) [L799] int ret = probe_19(&a19); [L800] COND FALSE !(ret==0) [L805] RET entry_point() - UnprovableResult [Line: 768]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 768]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 768]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 768]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 768]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 762]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 762]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 763]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 763]: 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: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 775]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 775]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 776]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 776]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 789]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 789]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 789]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 789]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 789]: Unable to prove that free always succeeds Unable to prove that free 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: 794]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 794]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 794]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 794]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 794]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 52 procedures, 401 locations, 94 error locations. Started 1 CEGAR loops. OverallTime: 615.1s, OverallIterations: 8, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 523.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 666 SDtfs, 1039 SDslu, 3064 SDs, 0 SdLazy, 2077 SolverSat, 335 SolverUnsat, 220 SolverUnknown, 0 SolverNotchecked, 444.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 368 GetRequests, 240 SyntacticMatches, 11 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 370 ImplicationChecksByTransitivity, 106.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=161occurred in iteration=0, InterpolantAutomatonStates: 90, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 292 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 56.3s InterpolantComputationTime, 189 NumberOfCodeBlocks, 189 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 336 ConstructedInterpolants, 41 QuantifiedInterpolants, 2157 SizeOfPredicates, 37 NumberOfNonLiveVariables, 957 ConjunctsInSsa, 87 ConjunctsInUnsatCore, 15 InterpolantComputations, 15 PerfectInterpolantSequences, 24/24 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-28 22:57:55,986 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77acc1-cdfa-4093-8340-41a22c0e4f0c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...