./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_3-2.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_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/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_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/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_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/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 14e3e63e231fa0c862b0912d52fb4325a0198eb4d9a43387e9996f85700980cb ................................................................................................................................... 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_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/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_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/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_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/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 14e3e63e231fa0c862b0912d52fb4325a0198eb4d9a43387e9996f85700980cb ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 23:48:04,292 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:48:04,294 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:48:04,358 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:48:04,359 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:48:04,361 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:48:04,363 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:48:04,366 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:48:04,368 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:48:04,370 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:48:04,371 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:48:04,373 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:48:04,374 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:48:04,375 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:48:04,378 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:48:04,384 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:48:04,386 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:48:04,391 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:48:04,394 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:48:04,399 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:48:04,401 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:48:04,403 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:48:04,405 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:48:04,407 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:48:04,411 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:48:04,412 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:48:04,413 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:48:04,414 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:48:04,415 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:48:04,416 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:48:04,417 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:48:04,419 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:48:04,420 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:48:04,422 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:48:04,424 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:48:04,424 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:48:04,426 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:48:04,426 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:48:04,427 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:48:04,428 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:48:04,430 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:48:04,431 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-10-28 23:48:04,477 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:48:04,477 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:48:04,481 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:48:04,482 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:48:04,485 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:48:04,485 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:48:04,486 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:48:04,486 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:48:04,486 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:48:04,487 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:48:04,488 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:48:04,489 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:48:04,489 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:48:04,489 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 23:48:04,489 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 23:48:04,490 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 23:48:04,490 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:48:04,490 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 23:48:04,490 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:48:04,491 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:48:04,491 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:48:04,491 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:48:04,492 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:48:04,492 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:48:04,493 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:48:04,493 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:48:04,493 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:48:04,494 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 23:48:04,494 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:48:04,494 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_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14e3e63e231fa0c862b0912d52fb4325a0198eb4d9a43387e9996f85700980cb [2021-10-28 23:48:04,889 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:48:04,916 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:48:04,919 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:48:04,921 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:48:04,922 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:48:04,923 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_3-2.i [2021-10-28 23:48:05,059 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/data/781fe45c3/95c46561f8964b91aa83cbe1f3fe13ac/FLAG90b9d5acf [2021-10-28 23:48:05,766 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:48:05,767 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/sv-benchmarks/c/ldv-memsafety/memleaks_test22_3-2.i [2021-10-28 23:48:05,809 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/data/781fe45c3/95c46561f8964b91aa83cbe1f3fe13ac/FLAG90b9d5acf [2021-10-28 23:48:05,995 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/data/781fe45c3/95c46561f8964b91aa83cbe1f3fe13ac [2021-10-28 23:48:06,003 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:48:06,008 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 23:48:06,012 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:48:06,013 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:48:06,017 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:48:06,018 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:48:05" (1/1) ... [2021-10-28 23:48:06,021 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30431cdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:48:06, skipping insertion in model container [2021-10-28 23:48:06,021 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:48:05" (1/1) ... [2021-10-28 23:48:06,030 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:48:06,102 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:48:06,748 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:48:06,778 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 23:48:06,778 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5c2554f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:48:06, skipping insertion in model container [2021-10-28 23:48:06,779 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:48:06,780 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-10-28 23:48:06,784 INFO L168 Benchmark]: Toolchain (without parser) took 773.65 ms. Allocated memory is still 127.9 MB. Free memory was 94.7 MB in the beginning and 100.9 MB in the end (delta: -6.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:48:06,787 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 83.9 MB. Free memory was 53.4 MB in the beginning and 53.4 MB in the end (delta: 26.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:48:06,788 INFO L168 Benchmark]: CACSL2BoogieTranslator took 767.86 ms. Allocated memory is still 127.9 MB. Free memory was 94.3 MB in the beginning and 100.9 MB in the end (delta: -6.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:48:06,791 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 83.9 MB. Free memory was 53.4 MB in the beginning and 53.4 MB in the end (delta: 26.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 767.86 ms. Allocated memory is still 127.9 MB. Free memory was 94.3 MB in the beginning and 100.9 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 23:48:09,729 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:48:09,733 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:48:09,794 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:48:09,795 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:48:09,797 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:48:09,799 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:48:09,802 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:48:09,805 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:48:09,806 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:48:09,808 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:48:09,810 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:48:09,811 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:48:09,812 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:48:09,815 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:48:09,817 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:48:09,818 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:48:09,820 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:48:09,823 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:48:09,826 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:48:09,829 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:48:09,831 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:48:09,833 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:48:09,834 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:48:09,839 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:48:09,840 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:48:09,840 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:48:09,842 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:48:09,842 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:48:09,853 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:48:09,854 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:48:09,855 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:48:09,856 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:48:09,857 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:48:09,859 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:48:09,859 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:48:09,860 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:48:09,861 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:48:09,861 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:48:09,863 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:48:09,864 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:48:09,870 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-28 23:48:09,922 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:48:09,923 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:48:09,923 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:48:09,923 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:48:09,925 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:48:09,925 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:48:09,925 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:48:09,926 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:48:09,926 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:48:09,926 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:48:09,926 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:48:09,927 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:48:09,930 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:48:09,930 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 23:48:09,930 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 23:48:09,931 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 23:48:09,931 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:48:09,931 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 23:48:09,931 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-28 23:48:09,931 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-28 23:48:09,932 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:48:09,932 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:48:09,932 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:48:09,933 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:48:09,933 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:48:09,933 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:48:09,934 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:48:09,934 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:48:09,935 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-28 23:48:09,935 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-28 23:48:09,936 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:48:09,936 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-28 23:48:09,936 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_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14e3e63e231fa0c862b0912d52fb4325a0198eb4d9a43387e9996f85700980cb [2021-10-28 23:48:10,444 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:48:10,482 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:48:10,486 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:48:10,488 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:48:10,489 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:48:10,490 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_3-2.i [2021-10-28 23:48:10,592 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/data/9f1d470e1/096c77ff0a9c4312b9b960d6646d4a58/FLAGdb4a66220 [2021-10-28 23:48:11,416 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:48:11,417 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/sv-benchmarks/c/ldv-memsafety/memleaks_test22_3-2.i [2021-10-28 23:48:11,436 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/data/9f1d470e1/096c77ff0a9c4312b9b960d6646d4a58/FLAGdb4a66220 [2021-10-28 23:48:11,564 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/data/9f1d470e1/096c77ff0a9c4312b9b960d6646d4a58 [2021-10-28 23:48:11,575 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:48:11,577 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 23:48:11,580 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:48:11,581 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:48:11,586 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:48:11,588 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:48:11" (1/1) ... [2021-10-28 23:48:11,589 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a05028b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:48:11, skipping insertion in model container [2021-10-28 23:48:11,590 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:48:11" (1/1) ... [2021-10-28 23:48:11,599 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:48:11,662 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:48:12,199 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:48:12,239 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-28 23:48:12,261 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:48:12,378 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:48:12,389 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:48:12,494 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:48:12,560 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:48:12,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:48:12 WrapperNode [2021-10-28 23:48:12,561 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:48:12,562 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:48:12,563 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:48:12,563 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:48:12,593 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:48:12" (1/1) ... [2021-10-28 23:48:12,593 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:48:12" (1/1) ... [2021-10-28 23:48:12,624 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:48:12" (1/1) ... [2021-10-28 23:48:12,625 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:48:12" (1/1) ... [2021-10-28 23:48:12,668 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:48:12" (1/1) ... [2021-10-28 23:48:12,676 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:48:12" (1/1) ... [2021-10-28 23:48:12,685 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:48:12" (1/1) ... [2021-10-28 23:48:12,700 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:48:12,701 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:48:12,701 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:48:12,702 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:48:12,703 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:48:12" (1/1) ... [2021-10-28 23:48:12,723 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:48:12,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:48:12,749 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:48:12,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:48:12,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-28 23:48:12,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:48:12,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-10-28 23:48:12,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-10-28 23:48:12,810 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-10-28 23:48:12,810 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-10-28 23:48:12,810 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-10-28 23:48:12,811 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-10-28 23:48:12,811 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-10-28 23:48:12,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-10-28 23:48:12,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-10-28 23:48:12,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-10-28 23:48:12,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-10-28 23:48:12,812 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-10-28 23:48:12,812 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-10-28 23:48:12,812 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-10-28 23:48:12,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-10-28 23:48:12,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-10-28 23:48:12,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-10-28 23:48:12,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-10-28 23:48:12,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-10-28 23:48:12,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-10-28 23:48:12,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-10-28 23:48:12,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-10-28 23:48:12,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-10-28 23:48:12,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-10-28 23:48:12,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-10-28 23:48:12,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-10-28 23:48:12,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-10-28 23:48:12,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-10-28 23:48:12,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-10-28 23:48:12,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-10-28 23:48:12,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-10-28 23:48:12,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-10-28 23:48:12,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-10-28 23:48:12,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-10-28 23:48:12,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-10-28 23:48:12,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-10-28 23:48:12,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-10-28 23:48:12,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-10-28 23:48:12,818 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-10-28 23:48:12,818 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-10-28 23:48:12,818 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-10-28 23:48:12,818 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-28 23:48:12,818 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-10-28 23:48:12,819 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-10-28 23:48:12,819 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-10-28 23:48:12,819 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-10-28 23:48:12,819 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-10-28 23:48:12,819 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-10-28 23:48:12,820 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-10-28 23:48:12,820 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-10-28 23:48:12,820 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-10-28 23:48:12,820 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-10-28 23:48:12,820 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-10-28 23:48:12,821 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-10-28 23:48:12,821 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-10-28 23:48:12,821 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-10-28 23:48:12,821 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-10-28 23:48:12,821 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-10-28 23:48:12,822 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-10-28 23:48:12,822 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-10-28 23:48:12,822 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-10-28 23:48:12,822 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-10-28 23:48:12,822 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-10-28 23:48:12,823 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-10-28 23:48:12,823 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-10-28 23:48:12,823 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-10-28 23:48:12,823 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-10-28 23:48:12,823 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-10-28 23:48:12,824 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-10-28 23:48:12,824 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-10-28 23:48:12,824 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-10-28 23:48:12,824 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-10-28 23:48:12,824 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-10-28 23:48:12,825 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-10-28 23:48:12,825 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-10-28 23:48:12,825 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-10-28 23:48:12,825 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-10-28 23:48:12,825 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-10-28 23:48:12,826 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-10-28 23:48:12,826 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-10-28 23:48:12,826 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-10-28 23:48:12,826 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-10-28 23:48:12,826 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-10-28 23:48:12,827 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-10-28 23:48:12,827 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-10-28 23:48:12,827 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-10-28 23:48:12,827 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-10-28 23:48:12,827 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-10-28 23:48:12,828 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-10-28 23:48:12,828 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-10-28 23:48:12,828 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-10-28 23:48:12,828 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-10-28 23:48:12,828 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-10-28 23:48:12,829 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-10-28 23:48:12,829 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-10-28 23:48:12,829 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-10-28 23:48:12,829 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-10-28 23:48:12,829 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-10-28 23:48:12,830 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-10-28 23:48:12,830 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-10-28 23:48:12,830 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-10-28 23:48:12,830 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-10-28 23:48:12,830 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-10-28 23:48:12,831 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-10-28 23:48:12,831 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-10-28 23:48:12,831 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-10-28 23:48:12,831 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-10-28 23:48:12,831 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-10-28 23:48:12,832 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-28 23:48:12,832 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-10-28 23:48:12,832 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-10-28 23:48:12,832 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-10-28 23:48:12,832 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-10-28 23:48:12,832 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-10-28 23:48:12,833 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-10-28 23:48:12,833 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-10-28 23:48:12,833 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-10-28 23:48:12,833 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-10-28 23:48:12,833 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-10-28 23:48:12,834 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-10-28 23:48:12,834 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-10-28 23:48:12,834 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-10-28 23:48:12,834 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-10-28 23:48:12,834 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-10-28 23:48:12,835 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-10-28 23:48:12,835 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-10-28 23:48:12,835 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-10-28 23:48:12,835 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-10-28 23:48:12,835 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-10-28 23:48:12,836 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-10-28 23:48:12,836 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-10-28 23:48:12,836 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-10-28 23:48:12,836 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-10-28 23:48:12,837 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-10-28 23:48:12,837 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-10-28 23:48:12,837 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-10-28 23:48:12,837 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-10-28 23:48:12,837 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-10-28 23:48:12,837 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-10-28 23:48:12,838 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-10-28 23:48:12,838 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-10-28 23:48:12,838 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-10-28 23:48:12,838 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-10-28 23:48:12,838 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-10-28 23:48:12,839 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-10-28 23:48:12,839 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-10-28 23:48:12,839 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-10-28 23:48:12,839 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-10-28 23:48:12,839 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-10-28 23:48:12,839 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-10-28 23:48:12,840 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-10-28 23:48:12,840 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-10-28 23:48:12,840 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-10-28 23:48:12,840 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-28 23:48:12,840 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-10-28 23:48:12,841 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-10-28 23:48:12,841 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-10-28 23:48:12,841 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-10-28 23:48:12,841 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-10-28 23:48:12,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-28 23:48:12,842 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-10-28 23:48:12,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-10-28 23:48:12,842 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-10-28 23:48:12,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-28 23:48:12,842 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-10-28 23:48:12,842 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-10-28 23:48:12,843 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-10-28 23:48:12,843 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-28 23:48:12,843 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-10-28 23:48:12,843 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-10-28 23:48:12,843 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-10-28 23:48:12,844 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-10-28 23:48:12,844 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-10-28 23:48:12,844 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-10-28 23:48:12,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 23:48:12,844 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-10-28 23:48:12,845 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-10-28 23:48:12,845 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-10-28 23:48:12,845 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-10-28 23:48:12,845 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-10-28 23:48:12,845 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-28 23:48:12,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-28 23:48:12,846 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-10-28 23:48:12,846 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-10-28 23:48:12,846 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-10-28 23:48:12,846 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-10-28 23:48:12,846 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-10-28 23:48:12,847 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-10-28 23:48:12,847 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-10-28 23:48:12,847 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-10-28 23:48:12,847 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-10-28 23:48:12,847 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-10-28 23:48:12,847 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-10-28 23:48:12,848 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-10-28 23:48:12,848 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-10-28 23:48:12,848 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-10-28 23:48:12,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-10-28 23:48:12,848 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-10-28 23:48:12,849 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-10-28 23:48:12,849 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-10-28 23:48:12,849 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-28 23:48:12,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-28 23:48:12,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:48:12,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-28 23:48:12,850 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:48:12,850 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-10-28 23:48:12,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-10-28 23:48:12,850 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-10-28 23:48:12,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-10-28 23:48:12,851 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-10-28 23:48:13,641 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 23:48:14,130 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 23:48:14,460 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:48:14,460 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-10-28 23:48:14,463 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:48:14 BoogieIcfgContainer [2021-10-28 23:48:14,464 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:48:14,466 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:48:14,466 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:48:14,469 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:48:14,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:48:11" (1/3) ... [2021-10-28 23:48:14,470 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40146aff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:48:14, skipping insertion in model container [2021-10-28 23:48:14,471 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:48:12" (2/3) ... [2021-10-28 23:48:14,471 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40146aff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:48:14, skipping insertion in model container [2021-10-28 23:48:14,471 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:48:14" (3/3) ... [2021-10-28 23:48:14,473 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test22_3-2.i [2021-10-28 23:48:14,480 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:48:14,480 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 71 error locations. [2021-10-28 23:48:14,532 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:48:14,541 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 23:48:14,541 INFO L340 AbstractCegarLoop]: Starting to check reachability of 71 error locations. [2021-10-28 23:48:14,564 INFO L276 IsEmpty]: Start isEmpty. Operand has 151 states, 83 states have (on average 1.4698795180722892) internal successors, (122), 113 states have internal predecessors, (122), 20 states have call successors, (20), 18 states have call predecessors, (20), 18 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2021-10-28 23:48:14,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-28 23:48:14,601 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:48:14,602 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:48:14,602 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_kobject_createErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 23:48:14,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:48:14,612 INFO L85 PathProgramCache]: Analyzing trace with hash 1484999723, now seen corresponding path program 1 times [2021-10-28 23:48:14,627 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:48:14,628 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1916614906] [2021-10-28 23:48:14,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:48:14,630 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:48:14,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:48:14,634 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:48:14,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-28 23:48:14,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:48:14,891 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:48:14,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:48:15,049 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 23:48:15,133 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 23:48:15,134 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:48:15,294 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 23:48:15,295 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:48:15,296 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1916614906] [2021-10-28 23:48:15,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1916614906] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:48:15,298 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:48:15,299 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-28 23:48:15,301 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679362797] [2021-10-28 23:48:15,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:48:15,311 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:48:15,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:48:15,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:48:15,347 INFO L87 Difference]: Start difference. First operand has 151 states, 83 states have (on average 1.4698795180722892) internal successors, (122), 113 states have internal predecessors, (122), 20 states have call successors, (20), 18 states have call predecessors, (20), 18 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 23:48:15,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:48:15,713 INFO L93 Difference]: Finished difference Result 133 states and 144 transitions. [2021-10-28 23:48:15,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:48:15,718 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2021-10-28 23:48:15,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:48:15,736 INFO L225 Difference]: With dead ends: 133 [2021-10-28 23:48:15,736 INFO L226 Difference]: Without dead ends: 130 [2021-10-28 23:48:15,738 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 27 SyntacticMatches, 3 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:48:15,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2021-10-28 23:48:15,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 124. [2021-10-28 23:48:15,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 69 states have (on average 1.4057971014492754) internal successors, (97), 90 states have internal predecessors, (97), 19 states have call successors, (19), 17 states have call predecessors, (19), 17 states have return successors, (19), 18 states have call predecessors, (19), 18 states have call successors, (19) [2021-10-28 23:48:15,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 135 transitions. [2021-10-28 23:48:15,847 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 135 transitions. Word has length 17 [2021-10-28 23:48:15,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:48:15,847 INFO L470 AbstractCegarLoop]: Abstraction has 124 states and 135 transitions. [2021-10-28 23:48:15,848 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 23:48:15,848 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 135 transitions. [2021-10-28 23:48:15,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-28 23:48:15,850 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:48:15,850 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:48:15,872 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-10-28 23:48:16,068 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:48:16,068 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_kobject_createErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 23:48:16,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:48:16,069 INFO L85 PathProgramCache]: Analyzing trace with hash 1484999724, now seen corresponding path program 1 times [2021-10-28 23:48:16,070 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:48:16,070 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [434972809] [2021-10-28 23:48:16,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:48:16,070 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:48:16,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:48:16,072 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:48:16,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-28 23:48:16,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:48:16,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-28 23:48:16,279 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:48:16,335 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 23:48:16,446 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 23:48:16,446 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:48:17,001 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 23:48:17,001 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:48:17,001 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [434972809] [2021-10-28 23:48:17,002 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [434972809] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:48:17,002 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:48:17,002 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-10-28 23:48:17,002 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871505657] [2021-10-28 23:48:17,004 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 23:48:17,004 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:48:17,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 23:48:17,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-10-28 23:48:17,006 INFO L87 Difference]: Start difference. First operand 124 states and 135 transitions. Second operand has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 8 states have internal predecessors, (16), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 23:48:17,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:48:17,628 INFO L93 Difference]: Finished difference Result 129 states and 140 transitions. [2021-10-28 23:48:17,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 23:48:17,629 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 8 states have internal predecessors, (16), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 17 [2021-10-28 23:48:17,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:48:17,632 INFO L225 Difference]: With dead ends: 129 [2021-10-28 23:48:17,632 INFO L226 Difference]: Without dead ends: 129 [2021-10-28 23:48:17,633 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-10-28 23:48:17,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2021-10-28 23:48:17,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 124. [2021-10-28 23:48:17,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 68 states have (on average 1.411764705882353) internal successors, (96), 90 states have internal predecessors, (96), 19 states have call successors, (19), 17 states have call predecessors, (19), 17 states have return successors, (19), 18 states have call predecessors, (19), 18 states have call successors, (19) [2021-10-28 23:48:17,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 134 transitions. [2021-10-28 23:48:17,650 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 134 transitions. Word has length 17 [2021-10-28 23:48:17,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:48:17,650 INFO L470 AbstractCegarLoop]: Abstraction has 124 states and 134 transitions. [2021-10-28 23:48:17,651 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 8 states have internal predecessors, (16), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 23:48:17,651 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 134 transitions. [2021-10-28 23:48:17,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-28 23:48:17,652 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:48:17,653 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:48:17,666 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-10-28 23:48:17,866 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:48:17,867 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_kobject_createErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 23:48:17,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:48:17,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1513628874, now seen corresponding path program 1 times [2021-10-28 23:48:17,870 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:48:17,870 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [579322012] [2021-10-28 23:48:17,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:48:17,870 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:48:17,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:48:17,872 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:48:17,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-28 23:48:18,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:48:18,082 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 23:48:18,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:48:18,210 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 23:48:18,210 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:48:18,323 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 23:48:18,323 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:48:18,323 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [579322012] [2021-10-28 23:48:18,324 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [579322012] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:48:18,324 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:48:18,325 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-28 23:48:18,325 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070258717] [2021-10-28 23:48:18,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:48:18,326 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:48:18,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:48:18,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:48:18,332 INFO L87 Difference]: Start difference. First operand 124 states and 134 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 23:48:18,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:48:18,377 INFO L93 Difference]: Finished difference Result 123 states and 131 transitions. [2021-10-28 23:48:18,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:48:18,377 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2021-10-28 23:48:18,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:48:18,384 INFO L225 Difference]: With dead ends: 123 [2021-10-28 23:48:18,384 INFO L226 Difference]: Without dead ends: 123 [2021-10-28 23:48:18,384 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:48:18,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2021-10-28 23:48:18,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 121. [2021-10-28 23:48:18,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 67 states have (on average 1.3880597014925373) internal successors, (93), 87 states have internal predecessors, (93), 18 states have call successors, (18), 17 states have call predecessors, (18), 17 states have return successors, (18), 18 states have call predecessors, (18), 17 states have call successors, (18) [2021-10-28 23:48:18,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 129 transitions. [2021-10-28 23:48:18,414 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 129 transitions. Word has length 17 [2021-10-28 23:48:18,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:48:18,414 INFO L470 AbstractCegarLoop]: Abstraction has 121 states and 129 transitions. [2021-10-28 23:48:18,415 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 23:48:18,415 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 129 transitions. [2021-10-28 23:48:18,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-28 23:48:18,420 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:48:18,420 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, 1, 1] [2021-10-28 23:48:18,438 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-28 23:48:18,634 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:48:18,635 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_atomic_sub_returnErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 23:48:18,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:48:18,635 INFO L85 PathProgramCache]: Analyzing trace with hash 1578542280, now seen corresponding path program 1 times [2021-10-28 23:48:18,636 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:48:18,636 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1414824299] [2021-10-28 23:48:18,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:48:18,637 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:48:18,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:48:18,638 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:48:18,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-28 23:48:18,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:48:18,891 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:48:18,894 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:48:19,021 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 23:48:19,022 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:48:19,165 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 23:48:19,166 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:48:19,166 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1414824299] [2021-10-28 23:48:19,166 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1414824299] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:48:19,166 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:48:19,166 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-28 23:48:19,167 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281762137] [2021-10-28 23:48:19,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:48:19,167 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:48:19,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:48:19,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:48:19,168 INFO L87 Difference]: Start difference. First operand 121 states and 129 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 23:48:19,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:48:19,196 INFO L93 Difference]: Finished difference Result 123 states and 130 transitions. [2021-10-28 23:48:19,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:48:19,198 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 29 [2021-10-28 23:48:19,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:48:19,200 INFO L225 Difference]: With dead ends: 123 [2021-10-28 23:48:19,200 INFO L226 Difference]: Without dead ends: 123 [2021-10-28 23:48:19,201 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:48:19,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2021-10-28 23:48:19,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 121. [2021-10-28 23:48:19,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 67 states have (on average 1.373134328358209) internal successors, (92), 87 states have internal predecessors, (92), 18 states have call successors, (18), 17 states have call predecessors, (18), 17 states have return successors, (18), 18 states have call predecessors, (18), 17 states have call successors, (18) [2021-10-28 23:48:19,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 128 transitions. [2021-10-28 23:48:19,213 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 128 transitions. Word has length 29 [2021-10-28 23:48:19,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:48:19,214 INFO L470 AbstractCegarLoop]: Abstraction has 121 states and 128 transitions. [2021-10-28 23:48:19,214 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 23:48:19,214 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 128 transitions. [2021-10-28 23:48:19,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-28 23:48:19,216 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:48:19,216 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, 1, 1] [2021-10-28 23:48:19,236 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-28 23:48:19,431 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:48:19,431 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_atomic_sub_returnErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 23:48:19,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:48:19,432 INFO L85 PathProgramCache]: Analyzing trace with hash 581469927, now seen corresponding path program 1 times [2021-10-28 23:48:19,432 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:48:19,433 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1730345489] [2021-10-28 23:48:19,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:48:19,433 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:48:19,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:48:19,435 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:48:19,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-28 23:48:19,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:48:19,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-28 23:48:19,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:48:19,938 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 23:48:19,938 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:48:20,111 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 23:48:20,111 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:48:20,111 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1730345489] [2021-10-28 23:48:20,111 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1730345489] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:48:20,111 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:48:20,112 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-10-28 23:48:20,112 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909403748] [2021-10-28 23:48:20,112 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 23:48:20,112 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:48:20,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 23:48:20,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-28 23:48:20,113 INFO L87 Difference]: Start difference. First operand 121 states and 128 transitions. Second operand has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 23:48:20,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:48:20,192 INFO L93 Difference]: Finished difference Result 134 states and 143 transitions. [2021-10-28 23:48:20,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 23:48:20,193 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 29 [2021-10-28 23:48:20,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:48:20,195 INFO L225 Difference]: With dead ends: 134 [2021-10-28 23:48:20,195 INFO L226 Difference]: Without dead ends: 134 [2021-10-28 23:48:20,196 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-10-28 23:48:20,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2021-10-28 23:48:20,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 130. [2021-10-28 23:48:20,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 72 states have (on average 1.3472222222222223) internal successors, (97), 93 states have internal predecessors, (97), 20 states have call successors, (20), 18 states have call predecessors, (20), 19 states have return successors, (21), 20 states have call predecessors, (21), 19 states have call successors, (21) [2021-10-28 23:48:20,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 138 transitions. [2021-10-28 23:48:20,207 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 138 transitions. Word has length 29 [2021-10-28 23:48:20,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:48:20,207 INFO L470 AbstractCegarLoop]: Abstraction has 130 states and 138 transitions. [2021-10-28 23:48:20,208 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 23:48:20,208 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 138 transitions. [2021-10-28 23:48:20,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-28 23:48:20,209 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:48:20,210 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, 1, 1, 1, 1, 1] [2021-10-28 23:48:20,228 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-28 23:48:20,423 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:48:20,423 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_kref_initErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 23:48:20,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:48:20,424 INFO L85 PathProgramCache]: Analyzing trace with hash -1899216601, now seen corresponding path program 1 times [2021-10-28 23:48:20,424 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:48:20,424 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [953878053] [2021-10-28 23:48:20,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:48:20,424 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:48:20,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:48:20,425 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:48:20,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-28 23:48:20,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:48:20,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-28 23:48:20,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:48:20,844 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 23:48:20,845 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:48:20,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:48:20,988 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:48:20,988 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [953878053] [2021-10-28 23:48:20,988 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [953878053] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:48:20,988 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:48:20,988 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-28 23:48:20,988 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452154963] [2021-10-28 23:48:20,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 23:48:20,989 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:48:20,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:48:20,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:48:20,990 INFO L87 Difference]: Start difference. First operand 130 states and 138 transitions. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-10-28 23:48:21,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:48:21,033 INFO L93 Difference]: Finished difference Result 136 states and 144 transitions. [2021-10-28 23:48:21,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 23:48:21,034 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 32 [2021-10-28 23:48:21,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:48:21,035 INFO L225 Difference]: With dead ends: 136 [2021-10-28 23:48:21,036 INFO L226 Difference]: Without dead ends: 132 [2021-10-28 23:48:21,036 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2021-10-28 23:48:21,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2021-10-28 23:48:21,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2021-10-28 23:48:21,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 74 states have (on average 1.337837837837838) internal successors, (99), 95 states have internal predecessors, (99), 20 states have call successors, (20), 18 states have call predecessors, (20), 19 states have return successors, (21), 20 states have call predecessors, (21), 19 states have call successors, (21) [2021-10-28 23:48:21,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 140 transitions. [2021-10-28 23:48:21,046 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 140 transitions. Word has length 32 [2021-10-28 23:48:21,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:48:21,046 INFO L470 AbstractCegarLoop]: Abstraction has 132 states and 140 transitions. [2021-10-28 23:48:21,047 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-10-28 23:48:21,047 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 140 transitions. [2021-10-28 23:48:21,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-28 23:48:21,049 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:48:21,049 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:48:21,067 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-28 23:48:21,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:48:21,263 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_kref_initErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 23:48:21,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:48:21,263 INFO L85 PathProgramCache]: Analyzing trace with hash -2034413241, now seen corresponding path program 1 times [2021-10-28 23:48:21,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:48:21,264 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [304099340] [2021-10-28 23:48:21,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:48:21,264 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:48:21,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:48:21,265 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:48:21,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-28 23:48:21,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:48:21,542 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 23:48:21,544 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:48:21,678 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:48:21,678 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:48:21,948 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:48:21,949 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:48:21,949 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [304099340] [2021-10-28 23:48:21,949 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [304099340] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-28 23:48:21,949 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:48:21,949 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-10-28 23:48:21,950 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298131015] [2021-10-28 23:48:21,950 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 23:48:21,950 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:48:21,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 23:48:21,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-10-28 23:48:21,951 INFO L87 Difference]: Start difference. First operand 132 states and 140 transitions. Second operand has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-10-28 23:48:22,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:48:22,183 INFO L93 Difference]: Finished difference Result 140 states and 150 transitions. [2021-10-28 23:48:22,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 23:48:22,184 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 34 [2021-10-28 23:48:22,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:48:22,186 INFO L225 Difference]: With dead ends: 140 [2021-10-28 23:48:22,186 INFO L226 Difference]: Without dead ends: 136 [2021-10-28 23:48:22,187 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2021-10-28 23:48:22,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2021-10-28 23:48:22,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2021-10-28 23:48:22,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 78 states have (on average 1.3205128205128205) internal successors, (103), 99 states have internal predecessors, (103), 20 states have call successors, (20), 18 states have call predecessors, (20), 19 states have return successors, (21), 20 states have call predecessors, (21), 19 states have call successors, (21) [2021-10-28 23:48:22,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 144 transitions. [2021-10-28 23:48:22,196 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 144 transitions. Word has length 34 [2021-10-28 23:48:22,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:48:22,196 INFO L470 AbstractCegarLoop]: Abstraction has 136 states and 144 transitions. [2021-10-28 23:48:22,197 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-10-28 23:48:22,197 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 144 transitions. [2021-10-28 23:48:22,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-28 23:48:22,199 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:48:22,199 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, 1, 1, 1, 1] [2021-10-28 23:48:22,218 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-28 23:48:22,413 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:48:22,414 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 23:48:22,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:48:22,414 INFO L85 PathProgramCache]: Analyzing trace with hash 76391075, now seen corresponding path program 1 times [2021-10-28 23:48:22,415 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:48:22,415 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1727824025] [2021-10-28 23:48:22,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:48:22,415 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:48:22,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:48:22,416 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:48:22,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-28 23:48:22,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:48:22,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-28 23:48:22,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:48:22,825 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 23:48:22,826 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:48:23,099 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 23:48:23,100 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:48:23,100 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1727824025] [2021-10-28 23:48:23,100 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1727824025] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:48:23,100 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:48:23,100 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-28 23:48:23,100 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244639795] [2021-10-28 23:48:23,101 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:48:23,101 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:48:23,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:48:23,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:48:23,102 INFO L87 Difference]: Start difference. First operand 136 states and 144 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-10-28 23:48:23,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:48:23,311 INFO L93 Difference]: Finished difference Result 147 states and 155 transitions. [2021-10-28 23:48:23,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:48:23,312 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 32 [2021-10-28 23:48:23,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:48:23,314 INFO L225 Difference]: With dead ends: 147 [2021-10-28 23:48:23,314 INFO L226 Difference]: Without dead ends: 131 [2021-10-28 23:48:23,314 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:48:23,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2021-10-28 23:48:23,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 123. [2021-10-28 23:48:23,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 70 states have (on average 1.3428571428571427) internal successors, (94), 90 states have internal predecessors, (94), 18 states have call successors, (18), 17 states have call predecessors, (18), 16 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2021-10-28 23:48:23,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 129 transitions. [2021-10-28 23:48:23,325 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 129 transitions. Word has length 32 [2021-10-28 23:48:23,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:48:23,325 INFO L470 AbstractCegarLoop]: Abstraction has 123 states and 129 transitions. [2021-10-28 23:48:23,326 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-10-28 23:48:23,326 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 129 transitions. [2021-10-28 23:48:23,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-10-28 23:48:23,335 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:48:23,336 INFO L513 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:48:23,355 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-28 23:48:23,550 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:48:23,550 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_kref_initErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 23:48:23,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:48:23,551 INFO L85 PathProgramCache]: Analyzing trace with hash -1051272825, now seen corresponding path program 2 times [2021-10-28 23:48:23,552 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:48:23,552 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [59874603] [2021-10-28 23:48:23,552 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 23:48:23,552 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:48:23,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:48:23,553 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:48:23,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-28 23:48:23,838 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-28 23:48:23,838 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:48:23,843 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-28 23:48:23,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:48:23,880 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 23:48:24,237 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-10-28 23:48:24,237 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:48:24,519 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-10-28 23:48:24,520 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:48:24,520 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [59874603] [2021-10-28 23:48:24,520 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [59874603] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:48:24,521 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:48:24,521 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 11 [2021-10-28 23:48:24,521 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035937269] [2021-10-28 23:48:24,522 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-28 23:48:24,522 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:48:24,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-28 23:48:24,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-10-28 23:48:24,523 INFO L87 Difference]: Start difference. First operand 123 states and 129 transitions. Second operand has 12 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 8 states have internal predecessors, (26), 4 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-28 23:48:25,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:48:25,497 INFO L93 Difference]: Finished difference Result 146 states and 160 transitions. [2021-10-28 23:48:25,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 23:48:25,498 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 8 states have internal predecessors, (26), 4 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 38 [2021-10-28 23:48:25,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:48:25,500 INFO L225 Difference]: With dead ends: 146 [2021-10-28 23:48:25,500 INFO L226 Difference]: Without dead ends: 146 [2021-10-28 23:48:25,501 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 56 SyntacticMatches, 9 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2021-10-28 23:48:25,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2021-10-28 23:48:25,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 122. [2021-10-28 23:48:25,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 70 states have (on average 1.3285714285714285) internal successors, (93), 89 states have internal predecessors, (93), 18 states have call successors, (18), 17 states have call predecessors, (18), 16 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2021-10-28 23:48:25,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 128 transitions. [2021-10-28 23:48:25,510 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 128 transitions. Word has length 38 [2021-10-28 23:48:25,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:48:25,511 INFO L470 AbstractCegarLoop]: Abstraction has 122 states and 128 transitions. [2021-10-28 23:48:25,511 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 8 states have internal predecessors, (26), 4 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-28 23:48:25,511 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 128 transitions. [2021-10-28 23:48:25,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-10-28 23:48:25,513 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:48:25,513 INFO L513 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:48:25,535 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-28 23:48:25,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:48:25,728 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_kref_initErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 23:48:25,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:48:25,728 INFO L85 PathProgramCache]: Analyzing trace with hash -1051272824, now seen corresponding path program 1 times [2021-10-28 23:48:25,729 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:48:25,729 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1962586160] [2021-10-28 23:48:25,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:48:25,730 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:48:25,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:48:25,731 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:48:25,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-28 23:48:26,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:48:26,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-28 23:48:26,048 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:48:26,254 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:48:26,255 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:48:26,849 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:48:26,850 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:48:26,850 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1962586160] [2021-10-28 23:48:26,850 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1962586160] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-28 23:48:26,850 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:48:26,850 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2021-10-28 23:48:26,850 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825973625] [2021-10-28 23:48:26,851 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-10-28 23:48:26,851 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:48:26,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-28 23:48:26,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2021-10-28 23:48:26,852 INFO L87 Difference]: Start difference. First operand 122 states and 128 transitions. Second operand has 18 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 18 states have internal predecessors, (35), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-10-28 23:48:27,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:48:27,906 INFO L93 Difference]: Finished difference Result 134 states and 146 transitions. [2021-10-28 23:48:27,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-28 23:48:27,907 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 18 states have internal predecessors, (35), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 38 [2021-10-28 23:48:27,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:48:27,909 INFO L225 Difference]: With dead ends: 134 [2021-10-28 23:48:27,909 INFO L226 Difference]: Without dead ends: 130 [2021-10-28 23:48:27,910 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=223, Invalid=377, Unknown=0, NotChecked=0, Total=600 [2021-10-28 23:48:27,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2021-10-28 23:48:27,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2021-10-28 23:48:27,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 78 states have (on average 1.294871794871795) internal successors, (101), 97 states have internal predecessors, (101), 18 states have call successors, (18), 17 states have call predecessors, (18), 16 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2021-10-28 23:48:27,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 136 transitions. [2021-10-28 23:48:27,917 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 136 transitions. Word has length 38 [2021-10-28 23:48:27,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:48:27,917 INFO L470 AbstractCegarLoop]: Abstraction has 130 states and 136 transitions. [2021-10-28 23:48:27,918 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 18 states have internal predecessors, (35), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-10-28 23:48:27,918 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 136 transitions. [2021-10-28 23:48:27,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-10-28 23:48:27,919 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:48:27,920 INFO L513 BasicCegarLoop]: trace histogram [14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:48:27,947 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-28 23:48:28,147 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:48:28,147 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_kref_initErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 23:48:28,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:48:28,148 INFO L85 PathProgramCache]: Analyzing trace with hash -2061530616, now seen corresponding path program 2 times [2021-10-28 23:48:28,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:48:28,148 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [944437716] [2021-10-28 23:48:28,149 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 23:48:28,149 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:48:28,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:48:28,150 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:48:28,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-28 23:48:28,484 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-28 23:48:28,484 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:48:28,489 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-28 23:48:28,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:48:28,553 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 23:48:29,196 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-10-28 23:48:29,197 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:48:30,656 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-10-28 23:48:30,656 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:48:30,657 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [944437716] [2021-10-28 23:48:30,657 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [944437716] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:48:30,657 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:48:30,657 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 11] imperfect sequences [] total 22 [2021-10-28 23:48:30,657 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377259485] [2021-10-28 23:48:30,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-28 23:48:30,658 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:48:30,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-28 23:48:30,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2021-10-28 23:48:30,660 INFO L87 Difference]: Start difference. First operand 130 states and 136 transitions. Second operand has 23 states, 22 states have (on average 1.7272727272727273) internal successors, (38), 15 states have internal predecessors, (38), 7 states have call successors, (13), 8 states have call predecessors, (13), 4 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2021-10-28 23:48:33,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:48:33,301 INFO L93 Difference]: Finished difference Result 129 states and 135 transitions. [2021-10-28 23:48:33,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-28 23:48:33,302 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 1.7272727272727273) internal successors, (38), 15 states have internal predecessors, (38), 7 states have call successors, (13), 8 states have call predecessors, (13), 4 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) Word has length 46 [2021-10-28 23:48:33,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:48:33,304 INFO L225 Difference]: With dead ends: 129 [2021-10-28 23:48:33,304 INFO L226 Difference]: Without dead ends: 129 [2021-10-28 23:48:33,313 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 69 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=88, Invalid=614, Unknown=0, NotChecked=0, Total=702 [2021-10-28 23:48:33,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2021-10-28 23:48:33,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2021-10-28 23:48:33,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 78 states have (on average 1.2820512820512822) internal successors, (100), 96 states have internal predecessors, (100), 18 states have call successors, (18), 17 states have call predecessors, (18), 16 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2021-10-28 23:48:33,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 135 transitions. [2021-10-28 23:48:33,320 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 135 transitions. Word has length 46 [2021-10-28 23:48:33,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:48:33,321 INFO L470 AbstractCegarLoop]: Abstraction has 129 states and 135 transitions. [2021-10-28 23:48:33,321 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 1.7272727272727273) internal successors, (38), 15 states have internal predecessors, (38), 7 states have call successors, (13), 8 states have call predecessors, (13), 4 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2021-10-28 23:48:33,321 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 135 transitions. [2021-10-28 23:48:33,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-10-28 23:48:33,323 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:48:33,323 INFO L513 BasicCegarLoop]: trace histogram [14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:48:33,343 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (12)] Ended with exit code 0 [2021-10-28 23:48:33,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:48:33,538 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 23:48:33,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:48:33,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1631731192, now seen corresponding path program 1 times [2021-10-28 23:48:33,539 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:48:33,539 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [366942393] [2021-10-28 23:48:33,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:48:33,539 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:48:33,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:48:33,540 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:48:33,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-10-28 23:48:33,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:48:33,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-28 23:48:33,949 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:48:34,358 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:48:34,359 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:48:35,888 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:48:35,889 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:48:35,889 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [366942393] [2021-10-28 23:48:35,889 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [366942393] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-28 23:48:35,889 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:48:35,889 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 34 [2021-10-28 23:48:35,890 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471370982] [2021-10-28 23:48:35,890 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-10-28 23:48:35,891 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:48:35,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-10-28 23:48:35,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=230, Invalid=892, Unknown=0, NotChecked=0, Total=1122 [2021-10-28 23:48:35,893 INFO L87 Difference]: Start difference. First operand 129 states and 135 transitions. Second operand has 34 states, 34 states have (on average 1.6764705882352942) internal successors, (57), 34 states have internal predecessors, (57), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-10-28 23:48:36,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:48:36,699 INFO L93 Difference]: Finished difference Result 135 states and 141 transitions. [2021-10-28 23:48:36,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-28 23:48:36,701 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 1.6764705882352942) internal successors, (57), 34 states have internal predecessors, (57), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 51 [2021-10-28 23:48:36,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:48:36,703 INFO L225 Difference]: With dead ends: 135 [2021-10-28 23:48:36,704 INFO L226 Difference]: Without dead ends: 131 [2021-10-28 23:48:36,705 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=250, Invalid=940, Unknown=0, NotChecked=0, Total=1190 [2021-10-28 23:48:36,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2021-10-28 23:48:36,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2021-10-28 23:48:36,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 80 states have (on average 1.275) internal successors, (102), 98 states have internal predecessors, (102), 18 states have call successors, (18), 17 states have call predecessors, (18), 16 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2021-10-28 23:48:36,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 137 transitions. [2021-10-28 23:48:36,714 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 137 transitions. Word has length 51 [2021-10-28 23:48:36,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:48:36,714 INFO L470 AbstractCegarLoop]: Abstraction has 131 states and 137 transitions. [2021-10-28 23:48:36,715 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 1.6764705882352942) internal successors, (57), 34 states have internal predecessors, (57), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-10-28 23:48:36,715 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 137 transitions. [2021-10-28 23:48:36,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-28 23:48:36,717 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:48:36,718 INFO L513 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:48:36,739 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-10-28 23:48:36,931 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:48:36,932 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 23:48:36,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:48:36,932 INFO L85 PathProgramCache]: Analyzing trace with hash -346949160, now seen corresponding path program 2 times [2021-10-28 23:48:36,933 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:48:36,933 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1257468187] [2021-10-28 23:48:36,933 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 23:48:36,934 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:48:36,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:48:36,935 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:48:36,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-10-28 23:48:37,419 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-28 23:48:37,420 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:48:37,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-28 23:48:37,427 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:48:37,458 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 23:48:37,900 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-28 23:48:37,901 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:48:38,142 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-28 23:48:38,142 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:48:38,142 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1257468187] [2021-10-28 23:48:38,142 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1257468187] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:48:38,143 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:48:38,143 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 11 [2021-10-28 23:48:38,143 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916268979] [2021-10-28 23:48:38,143 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-28 23:48:38,143 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:48:38,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-28 23:48:38,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-10-28 23:48:38,145 INFO L87 Difference]: Start difference. First operand 131 states and 137 transitions. Second operand has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 8 states have internal predecessors, (32), 4 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2021-10-28 23:48:39,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:48:39,186 INFO L93 Difference]: Finished difference Result 153 states and 167 transitions. [2021-10-28 23:48:39,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 23:48:39,187 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 8 states have internal predecessors, (32), 4 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 53 [2021-10-28 23:48:39,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:48:39,189 INFO L225 Difference]: With dead ends: 153 [2021-10-28 23:48:39,189 INFO L226 Difference]: Without dead ends: 153 [2021-10-28 23:48:39,190 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 85 SyntacticMatches, 10 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2021-10-28 23:48:39,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2021-10-28 23:48:39,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 129. [2021-10-28 23:48:39,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 80 states have (on average 1.25) internal successors, (100), 96 states have internal predecessors, (100), 18 states have call successors, (18), 17 states have call predecessors, (18), 16 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2021-10-28 23:48:39,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 135 transitions. [2021-10-28 23:48:39,199 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 135 transitions. Word has length 53 [2021-10-28 23:48:39,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:48:39,199 INFO L470 AbstractCegarLoop]: Abstraction has 129 states and 135 transitions. [2021-10-28 23:48:39,200 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 8 states have internal predecessors, (32), 4 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2021-10-28 23:48:39,200 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 135 transitions. [2021-10-28 23:48:39,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-28 23:48:39,201 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:48:39,201 INFO L513 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:48:39,225 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-10-28 23:48:39,421 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:48:39,421 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 23:48:39,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:48:39,422 INFO L85 PathProgramCache]: Analyzing trace with hash -346949159, now seen corresponding path program 1 times [2021-10-28 23:48:39,423 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:48:39,423 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1459858008] [2021-10-28 23:48:39,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:48:39,423 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:48:39,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:48:39,425 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:48:39,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-10-28 23:48:39,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:48:39,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-28 23:48:39,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:48:40,018 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 23:48:40,640 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-28 23:48:40,640 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:48:42,054 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-28 23:48:42,054 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:48:42,054 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1459858008] [2021-10-28 23:48:42,054 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1459858008] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:48:42,054 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:48:42,054 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 11] imperfect sequences [] total 22 [2021-10-28 23:48:42,055 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906878832] [2021-10-28 23:48:42,055 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-28 23:48:42,055 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:48:42,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-28 23:48:42,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2021-10-28 23:48:42,057 INFO L87 Difference]: Start difference. First operand 129 states and 135 transitions. Second operand has 23 states, 22 states have (on average 2.0) internal successors, (44), 15 states have internal predecessors, (44), 7 states have call successors, (15), 8 states have call predecessors, (15), 4 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) [2021-10-28 23:48:44,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:48:44,756 INFO L93 Difference]: Finished difference Result 127 states and 133 transitions. [2021-10-28 23:48:44,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-28 23:48:44,757 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 2.0) internal successors, (44), 15 states have internal predecessors, (44), 7 states have call successors, (15), 8 states have call predecessors, (15), 4 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) Word has length 53 [2021-10-28 23:48:44,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:48:44,758 INFO L225 Difference]: With dead ends: 127 [2021-10-28 23:48:44,758 INFO L226 Difference]: Without dead ends: 127 [2021-10-28 23:48:44,759 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 81 SyntacticMatches, 3 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=88, Invalid=614, Unknown=0, NotChecked=0, Total=702 [2021-10-28 23:48:44,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2021-10-28 23:48:44,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2021-10-28 23:48:44,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 80 states have (on average 1.225) internal successors, (98), 94 states have internal predecessors, (98), 18 states have call successors, (18), 17 states have call predecessors, (18), 16 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2021-10-28 23:48:44,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 133 transitions. [2021-10-28 23:48:44,766 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 133 transitions. Word has length 53 [2021-10-28 23:48:44,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:48:44,766 INFO L470 AbstractCegarLoop]: Abstraction has 127 states and 133 transitions. [2021-10-28 23:48:44,767 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 2.0) internal successors, (44), 15 states have internal predecessors, (44), 7 states have call successors, (15), 8 states have call predecessors, (15), 4 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) [2021-10-28 23:48:44,767 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 133 transitions. [2021-10-28 23:48:44,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-10-28 23:48:44,768 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:48:44,768 INFO L513 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:48:44,785 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-10-28 23:48:44,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:48:44,983 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_atomic_sub_returnErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 23:48:44,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:48:44,984 INFO L85 PathProgramCache]: Analyzing trace with hash 1487182461, now seen corresponding path program 1 times [2021-10-28 23:48:44,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:48:44,984 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [255000034] [2021-10-28 23:48:44,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:48:44,984 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:48:44,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:48:44,985 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:48:44,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-10-28 23:48:45,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:48:45,485 INFO L263 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 23:48:45,487 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:48:45,692 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-28 23:48:45,692 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:48:45,943 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-28 23:48:45,943 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:48:45,943 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [255000034] [2021-10-28 23:48:45,943 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [255000034] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:48:45,943 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:48:45,943 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 8 [2021-10-28 23:48:45,944 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129178177] [2021-10-28 23:48:45,944 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 23:48:45,944 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:48:45,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 23:48:45,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-10-28 23:48:45,945 INFO L87 Difference]: Start difference. First operand 127 states and 133 transitions. Second operand has 8 states, 8 states have (on average 3.625) internal successors, (29), 7 states have internal predecessors, (29), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2021-10-28 23:48:46,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:48:46,010 INFO L93 Difference]: Finished difference Result 129 states and 134 transitions. [2021-10-28 23:48:46,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 23:48:46,014 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.625) internal successors, (29), 7 states have internal predecessors, (29), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) Word has length 58 [2021-10-28 23:48:46,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:48:46,015 INFO L225 Difference]: With dead ends: 129 [2021-10-28 23:48:46,015 INFO L226 Difference]: Without dead ends: 127 [2021-10-28 23:48:46,016 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-10-28 23:48:46,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2021-10-28 23:48:46,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2021-10-28 23:48:46,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 80 states have (on average 1.2125) internal successors, (97), 93 states have internal predecessors, (97), 18 states have call successors, (18), 17 states have call predecessors, (18), 16 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2021-10-28 23:48:46,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 132 transitions. [2021-10-28 23:48:46,022 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 132 transitions. Word has length 58 [2021-10-28 23:48:46,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:48:46,022 INFO L470 AbstractCegarLoop]: Abstraction has 127 states and 132 transitions. [2021-10-28 23:48:46,022 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.625) internal successors, (29), 7 states have internal predecessors, (29), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2021-10-28 23:48:46,023 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 132 transitions. [2021-10-28 23:48:46,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-10-28 23:48:46,024 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:48:46,024 INFO L513 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:48:46,045 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-10-28 23:48:46,245 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:48:46,245 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_atomic_sub_returnErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 23:48:46,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:48:46,246 INFO L85 PathProgramCache]: Analyzing trace with hash -537222574, now seen corresponding path program 1 times [2021-10-28 23:48:46,246 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:48:46,247 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [497032611] [2021-10-28 23:48:46,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:48:46,247 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:48:46,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:48:46,248 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:48:46,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-10-28 23:48:46,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:48:46,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 23:48:46,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:48:47,135 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-28 23:48:47,135 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:48:47,574 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-28 23:48:47,574 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:48:47,574 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [497032611] [2021-10-28 23:48:47,574 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [497032611] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:48:47,574 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:48:47,575 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 11 [2021-10-28 23:48:47,575 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470296911] [2021-10-28 23:48:47,575 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-28 23:48:47,576 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:48:47,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-28 23:48:47,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-10-28 23:48:47,577 INFO L87 Difference]: Start difference. First operand 127 states and 132 transitions. Second operand has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 10 states have internal predecessors, (34), 5 states have call successors, (13), 2 states have call predecessors, (13), 5 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) [2021-10-28 23:48:47,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:48:47,678 INFO L93 Difference]: Finished difference Result 131 states and 135 transitions. [2021-10-28 23:48:47,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 23:48:47,679 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 10 states have internal predecessors, (34), 5 states have call successors, (13), 2 states have call predecessors, (13), 5 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) Word has length 63 [2021-10-28 23:48:47,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:48:47,680 INFO L225 Difference]: With dead ends: 131 [2021-10-28 23:48:47,680 INFO L226 Difference]: Without dead ends: 127 [2021-10-28 23:48:47,680 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-10-28 23:48:47,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2021-10-28 23:48:47,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2021-10-28 23:48:47,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 80 states have (on average 1.2) internal successors, (96), 92 states have internal predecessors, (96), 18 states have call successors, (18), 17 states have call predecessors, (18), 16 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2021-10-28 23:48:47,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 131 transitions. [2021-10-28 23:48:47,686 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 131 transitions. Word has length 63 [2021-10-28 23:48:47,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:48:47,687 INFO L470 AbstractCegarLoop]: Abstraction has 127 states and 131 transitions. [2021-10-28 23:48:47,687 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 10 states have internal predecessors, (34), 5 states have call successors, (13), 2 states have call predecessors, (13), 5 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) [2021-10-28 23:48:47,687 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 131 transitions. [2021-10-28 23:48:47,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-10-28 23:48:47,688 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:48:47,689 INFO L513 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:48:47,704 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-10-28 23:48:47,903 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:48:47,903 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_atomic_sub_returnErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 23:48:47,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:48:47,904 INFO L85 PathProgramCache]: Analyzing trace with hash -964060479, now seen corresponding path program 1 times [2021-10-28 23:48:47,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:48:47,905 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [33448213] [2021-10-28 23:48:47,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:48:47,905 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:48:47,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:48:47,906 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:48:47,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-10-28 23:48:48,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:48:48,596 INFO L263 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-28 23:48:48,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:48:48,636 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 23:48:49,279 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-28 23:48:49,280 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:48:49,778 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-28 23:48:49,778 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:48:49,779 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [33448213] [2021-10-28 23:48:49,779 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [33448213] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:48:49,779 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:48:49,779 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16, 15] imperfect sequences [] total 16 [2021-10-28 23:48:49,779 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672072349] [2021-10-28 23:48:49,780 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-28 23:48:49,781 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:48:49,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-28 23:48:49,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2021-10-28 23:48:49,782 INFO L87 Difference]: Start difference. First operand 127 states and 131 transitions. Second operand has 17 states, 13 states have (on average 4.230769230769231) internal successors, (55), 11 states have internal predecessors, (55), 7 states have call successors, (19), 6 states have call predecessors, (19), 4 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) [2021-10-28 23:48:51,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:48:51,166 INFO L93 Difference]: Finished difference Result 178 states and 198 transitions. [2021-10-28 23:48:51,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-28 23:48:51,167 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 13 states have (on average 4.230769230769231) internal successors, (55), 11 states have internal predecessors, (55), 7 states have call successors, (19), 6 states have call predecessors, (19), 4 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) Word has length 74 [2021-10-28 23:48:51,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:48:51,169 INFO L225 Difference]: With dead ends: 178 [2021-10-28 23:48:51,169 INFO L226 Difference]: Without dead ends: 178 [2021-10-28 23:48:51,170 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 119 SyntacticMatches, 13 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=70, Invalid=392, Unknown=0, NotChecked=0, Total=462 [2021-10-28 23:48:51,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2021-10-28 23:48:51,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 154. [2021-10-28 23:48:51,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 98 states have (on average 1.1938775510204083) internal successors, (117), 111 states have internal predecessors, (117), 22 states have call successors, (22), 21 states have call predecessors, (22), 22 states have return successors, (27), 21 states have call predecessors, (27), 21 states have call successors, (27) [2021-10-28 23:48:51,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 166 transitions. [2021-10-28 23:48:51,182 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 166 transitions. Word has length 74 [2021-10-28 23:48:51,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:48:51,183 INFO L470 AbstractCegarLoop]: Abstraction has 154 states and 166 transitions. [2021-10-28 23:48:51,183 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 13 states have (on average 4.230769230769231) internal successors, (55), 11 states have internal predecessors, (55), 7 states have call successors, (19), 6 states have call predecessors, (19), 4 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) [2021-10-28 23:48:51,183 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 166 transitions. [2021-10-28 23:48:51,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-10-28 23:48:51,184 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:48:51,185 INFO L513 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:48:51,203 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-10-28 23:48:51,399 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:48:51,400 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_atomic_sub_returnErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 23:48:51,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:48:51,400 INFO L85 PathProgramCache]: Analyzing trace with hash -964060478, now seen corresponding path program 1 times [2021-10-28 23:48:51,401 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:48:51,401 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [848155346] [2021-10-28 23:48:51,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:48:51,402 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:48:51,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:48:51,403 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:48:51,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-10-28 23:48:52,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:48:52,216 INFO L263 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 32 conjunts are in the unsatisfiable core [2021-10-28 23:48:52,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:48:52,262 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 23:48:53,119 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-28 23:48:53,119 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:48:55,763 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-28 23:48:55,763 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:48:55,763 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [848155346] [2021-10-28 23:48:55,764 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [848155346] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:48:55,764 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:48:55,764 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17, 16] imperfect sequences [] total 32 [2021-10-28 23:48:55,766 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766825575] [2021-10-28 23:48:55,767 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-10-28 23:48:55,767 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:48:55,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-10-28 23:48:55,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=965, Unknown=0, NotChecked=0, Total=1056 [2021-10-28 23:48:55,769 INFO L87 Difference]: Start difference. First operand 154 states and 166 transitions. Second operand has 33 states, 26 states have (on average 2.6923076923076925) internal successors, (70), 21 states have internal predecessors, (70), 12 states have call successors, (23), 10 states have call predecessors, (23), 6 states have return successors, (15), 8 states have call predecessors, (15), 4 states have call successors, (15) [2021-10-28 23:48:59,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:48:59,642 INFO L93 Difference]: Finished difference Result 152 states and 162 transitions. [2021-10-28 23:48:59,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-28 23:48:59,644 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 26 states have (on average 2.6923076923076925) internal successors, (70), 21 states have internal predecessors, (70), 12 states have call successors, (23), 10 states have call predecessors, (23), 6 states have return successors, (15), 8 states have call predecessors, (15), 4 states have call successors, (15) Word has length 74 [2021-10-28 23:48:59,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:48:59,645 INFO L225 Difference]: With dead ends: 152 [2021-10-28 23:48:59,645 INFO L226 Difference]: Without dead ends: 152 [2021-10-28 23:48:59,647 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 113 SyntacticMatches, 3 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 326 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=132, Invalid=1350, Unknown=0, NotChecked=0, Total=1482 [2021-10-28 23:48:59,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2021-10-28 23:48:59,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2021-10-28 23:48:59,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 98 states have (on average 1.153061224489796) internal successors, (113), 109 states have internal predecessors, (113), 22 states have call successors, (22), 21 states have call predecessors, (22), 22 states have return successors, (27), 21 states have call predecessors, (27), 21 states have call successors, (27) [2021-10-28 23:48:59,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 162 transitions. [2021-10-28 23:48:59,656 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 162 transitions. Word has length 74 [2021-10-28 23:48:59,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:48:59,657 INFO L470 AbstractCegarLoop]: Abstraction has 152 states and 162 transitions. [2021-10-28 23:48:59,657 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 26 states have (on average 2.6923076923076925) internal successors, (70), 21 states have internal predecessors, (70), 12 states have call successors, (23), 10 states have call predecessors, (23), 6 states have return successors, (15), 8 states have call predecessors, (15), 4 states have call successors, (15) [2021-10-28 23:48:59,657 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 162 transitions. [2021-10-28 23:48:59,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-10-28 23:48:59,659 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:48:59,659 INFO L513 BasicCegarLoop]: trace histogram [16, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:48:59,677 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-10-28 23:48:59,871 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:48:59,871 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 23:48:59,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:48:59,872 INFO L85 PathProgramCache]: Analyzing trace with hash -770520951, now seen corresponding path program 1 times [2021-10-28 23:48:59,872 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:48:59,872 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [423326237] [2021-10-28 23:48:59,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:48:59,872 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:48:59,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:48:59,873 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:48:59,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-10-28 23:49:00,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:49:00,722 INFO L263 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-28 23:49:00,724 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:49:01,049 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-28 23:49:01,049 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:49:01,502 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2021-10-28 23:49:01,503 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:49:01,503 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [423326237] [2021-10-28 23:49:01,503 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [423326237] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-28 23:49:01,503 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:49:01,503 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 11 [2021-10-28 23:49:01,503 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145159191] [2021-10-28 23:49:01,504 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 23:49:01,504 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:49:01,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 23:49:01,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-10-28 23:49:01,505 INFO L87 Difference]: Start difference. First operand 152 states and 162 transitions. Second operand has 10 states, 9 states have (on average 4.333333333333333) internal successors, (39), 8 states have internal predecessors, (39), 4 states have call successors, (12), 2 states have call predecessors, (12), 5 states have return successors, (11), 5 states have call predecessors, (11), 4 states have call successors, (11) [2021-10-28 23:49:01,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:49:01,595 INFO L93 Difference]: Finished difference Result 153 states and 159 transitions. [2021-10-28 23:49:01,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 23:49:01,596 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.333333333333333) internal successors, (39), 8 states have internal predecessors, (39), 4 states have call successors, (12), 2 states have call predecessors, (12), 5 states have return successors, (11), 5 states have call predecessors, (11), 4 states have call successors, (11) Word has length 77 [2021-10-28 23:49:01,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:49:01,597 INFO L225 Difference]: With dead ends: 153 [2021-10-28 23:49:01,597 INFO L226 Difference]: Without dead ends: 149 [2021-10-28 23:49:01,598 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-10-28 23:49:01,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2021-10-28 23:49:01,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2021-10-28 23:49:01,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 97 states have (on average 1.134020618556701) internal successors, (110), 107 states have internal predecessors, (110), 21 states have call successors, (21), 21 states have call predecessors, (21), 21 states have return successors, (24), 20 states have call predecessors, (24), 20 states have call successors, (24) [2021-10-28 23:49:01,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 155 transitions. [2021-10-28 23:49:01,605 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 155 transitions. Word has length 77 [2021-10-28 23:49:01,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:49:01,606 INFO L470 AbstractCegarLoop]: Abstraction has 149 states and 155 transitions. [2021-10-28 23:49:01,606 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.333333333333333) internal successors, (39), 8 states have internal predecessors, (39), 4 states have call successors, (12), 2 states have call predecessors, (12), 5 states have return successors, (11), 5 states have call predecessors, (11), 4 states have call successors, (11) [2021-10-28 23:49:01,606 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 155 transitions. [2021-10-28 23:49:01,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-10-28 23:49:01,608 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:49:01,608 INFO L513 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:49:01,639 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (20)] Ended with exit code 0 [2021-10-28 23:49:01,825 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:49:01,825 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_kobject_cleanupErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 23:49:01,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:49:01,826 INFO L85 PathProgramCache]: Analyzing trace with hash 810528448, now seen corresponding path program 1 times [2021-10-28 23:49:01,827 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:49:01,827 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [331882378] [2021-10-28 23:49:01,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:49:01,827 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:49:01,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:49:01,829 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:49:01,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-10-28 23:49:02,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:49:02,668 INFO L263 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 34 conjunts are in the unsatisfiable core [2021-10-28 23:49:02,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:49:02,726 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 23:49:03,575 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-28 23:49:03,575 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:49:04,176 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-28 23:49:04,177 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:49:04,177 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [331882378] [2021-10-28 23:49:04,177 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [331882378] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:49:04,177 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:49:04,178 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20, 19] imperfect sequences [] total 20 [2021-10-28 23:49:04,178 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028575917] [2021-10-28 23:49:04,178 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-28 23:49:04,179 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:49:04,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-28 23:49:04,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2021-10-28 23:49:04,180 INFO L87 Difference]: Start difference. First operand 149 states and 155 transitions. Second operand has 21 states, 16 states have (on average 4.375) internal successors, (70), 13 states have internal predecessors, (70), 9 states have call successors, (23), 8 states have call predecessors, (23), 4 states have return successors, (15), 6 states have call predecessors, (15), 4 states have call successors, (15) [2021-10-28 23:49:06,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:49:06,101 INFO L93 Difference]: Finished difference Result 180 states and 196 transitions. [2021-10-28 23:49:06,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-10-28 23:49:06,102 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 16 states have (on average 4.375) internal successors, (70), 13 states have internal predecessors, (70), 9 states have call successors, (23), 8 states have call predecessors, (23), 4 states have return successors, (15), 6 states have call predecessors, (15), 4 states have call successors, (15) Word has length 87 [2021-10-28 23:49:06,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:49:06,104 INFO L225 Difference]: With dead ends: 180 [2021-10-28 23:49:06,104 INFO L226 Difference]: Without dead ends: 180 [2021-10-28 23:49:06,105 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 137 SyntacticMatches, 17 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=92, Invalid=664, Unknown=0, NotChecked=0, Total=756 [2021-10-28 23:49:06,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2021-10-28 23:49:06,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 155. [2021-10-28 23:49:06,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 101 states have (on average 1.1287128712871286) internal successors, (114), 110 states have internal predecessors, (114), 24 states have call successors, (24), 24 states have call predecessors, (24), 21 states have return successors, (27), 20 states have call predecessors, (27), 23 states have call successors, (27) [2021-10-28 23:49:06,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 165 transitions. [2021-10-28 23:49:06,115 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 165 transitions. Word has length 87 [2021-10-28 23:49:06,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:49:06,116 INFO L470 AbstractCegarLoop]: Abstraction has 155 states and 165 transitions. [2021-10-28 23:49:06,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 16 states have (on average 4.375) internal successors, (70), 13 states have internal predecessors, (70), 9 states have call successors, (23), 8 states have call predecessors, (23), 4 states have return successors, (15), 6 states have call predecessors, (15), 4 states have call successors, (15) [2021-10-28 23:49:06,116 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 165 transitions. [2021-10-28 23:49:06,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-10-28 23:49:06,118 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:49:06,118 INFO L513 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:49:06,145 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2021-10-28 23:49:06,336 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:49:06,336 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_kobject_cleanupErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 23:49:06,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:49:06,337 INFO L85 PathProgramCache]: Analyzing trace with hash 810528449, now seen corresponding path program 1 times [2021-10-28 23:49:06,337 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:49:06,337 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [662028222] [2021-10-28 23:49:06,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:49:06,338 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:49:06,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:49:06,339 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:49:06,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-10-28 23:49:07,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:49:07,213 INFO L263 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 44 conjunts are in the unsatisfiable core [2021-10-28 23:49:07,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:49:07,257 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 23:49:08,376 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-28 23:49:08,377 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:49:11,666 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-28 23:49:11,666 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:49:11,666 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [662028222] [2021-10-28 23:49:11,666 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [662028222] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:49:11,667 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:49:11,667 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21, 20] imperfect sequences [] total 40 [2021-10-28 23:49:11,667 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528237171] [2021-10-28 23:49:11,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2021-10-28 23:49:11,668 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:49:11,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-10-28 23:49:11,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=1525, Unknown=0, NotChecked=0, Total=1640 [2021-10-28 23:49:11,670 INFO L87 Difference]: Start difference. First operand 155 states and 165 transitions. Second operand has 41 states, 32 states have (on average 2.75) internal successors, (88), 25 states have internal predecessors, (88), 16 states have call successors, (29), 14 states have call predecessors, (29), 6 states have return successors, (17), 10 states have call predecessors, (17), 6 states have call successors, (17) [2021-10-28 23:49:17,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:49:17,142 INFO L93 Difference]: Finished difference Result 153 states and 162 transitions. [2021-10-28 23:49:17,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-28 23:49:17,143 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 32 states have (on average 2.75) internal successors, (88), 25 states have internal predecessors, (88), 16 states have call successors, (29), 14 states have call predecessors, (29), 6 states have return successors, (17), 10 states have call predecessors, (17), 6 states have call successors, (17) Word has length 87 [2021-10-28 23:49:17,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:49:17,144 INFO L225 Difference]: With dead ends: 153 [2021-10-28 23:49:17,145 INFO L226 Difference]: Without dead ends: 153 [2021-10-28 23:49:17,145 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 129 SyntacticMatches, 5 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 547 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=170, Invalid=2182, Unknown=0, NotChecked=0, Total=2352 [2021-10-28 23:49:17,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2021-10-28 23:49:17,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2021-10-28 23:49:17,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 101 states have (on average 1.099009900990099) internal successors, (111), 108 states have internal predecessors, (111), 24 states have call successors, (24), 24 states have call predecessors, (24), 21 states have return successors, (27), 20 states have call predecessors, (27), 23 states have call successors, (27) [2021-10-28 23:49:17,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 162 transitions. [2021-10-28 23:49:17,153 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 162 transitions. Word has length 87 [2021-10-28 23:49:17,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:49:17,154 INFO L470 AbstractCegarLoop]: Abstraction has 153 states and 162 transitions. [2021-10-28 23:49:17,154 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 32 states have (on average 2.75) internal successors, (88), 25 states have internal predecessors, (88), 16 states have call successors, (29), 14 states have call predecessors, (29), 6 states have return successors, (17), 10 states have call predecessors, (17), 6 states have call successors, (17) [2021-10-28 23:49:17,155 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 162 transitions. [2021-10-28 23:49:17,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-10-28 23:49:17,156 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:49:17,156 INFO L513 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:49:17,187 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2021-10-28 23:49:17,374 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:49:17,374 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 23:49:17,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:49:17,375 INFO L85 PathProgramCache]: Analyzing trace with hash 147123437, now seen corresponding path program 1 times [2021-10-28 23:49:17,375 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:49:17,376 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1372871399] [2021-10-28 23:49:17,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:49:17,376 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:49:17,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:49:17,378 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:49:17,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-10-28 23:49:18,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:49:18,422 INFO L263 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 23 conjunts are in the unsatisfiable core [2021-10-28 23:49:18,426 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:49:20,282 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-28 23:49:20,282 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:49:21,474 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-28 23:49:21,474 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:49:21,474 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1372871399] [2021-10-28 23:49:21,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1372871399] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:49:21,474 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:49:21,474 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21, 19] imperfect sequences [] total 39 [2021-10-28 23:49:21,475 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653279154] [2021-10-28 23:49:21,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2021-10-28 23:49:21,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:49:21,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-10-28 23:49:21,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=1410, Unknown=0, NotChecked=0, Total=1560 [2021-10-28 23:49:21,477 INFO L87 Difference]: Start difference. First operand 153 states and 162 transitions. Second operand has 40 states, 31 states have (on average 3.161290322580645) internal successors, (98), 24 states have internal predecessors, (98), 17 states have call successors, (33), 15 states have call predecessors, (33), 7 states have return successors, (18), 11 states have call predecessors, (18), 7 states have call successors, (18) [2021-10-28 23:49:23,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:49:23,857 INFO L93 Difference]: Finished difference Result 152 states and 161 transitions. [2021-10-28 23:49:23,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-28 23:49:23,858 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 31 states have (on average 3.161290322580645) internal successors, (98), 24 states have internal predecessors, (98), 17 states have call successors, (33), 15 states have call predecessors, (33), 7 states have return successors, (18), 11 states have call predecessors, (18), 7 states have call successors, (18) Word has length 90 [2021-10-28 23:49:23,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:49:23,859 INFO L225 Difference]: With dead ends: 152 [2021-10-28 23:49:23,859 INFO L226 Difference]: Without dead ends: 152 [2021-10-28 23:49:23,860 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 136 SyntacticMatches, 5 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 491 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=206, Invalid=1956, Unknown=0, NotChecked=0, Total=2162 [2021-10-28 23:49:23,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2021-10-28 23:49:23,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2021-10-28 23:49:23,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 101 states have (on average 1.0891089108910892) internal successors, (110), 107 states have internal predecessors, (110), 24 states have call successors, (24), 24 states have call predecessors, (24), 21 states have return successors, (27), 20 states have call predecessors, (27), 23 states have call successors, (27) [2021-10-28 23:49:23,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 161 transitions. [2021-10-28 23:49:23,868 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 161 transitions. Word has length 90 [2021-10-28 23:49:23,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:49:23,868 INFO L470 AbstractCegarLoop]: Abstraction has 152 states and 161 transitions. [2021-10-28 23:49:23,869 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 31 states have (on average 3.161290322580645) internal successors, (98), 24 states have internal predecessors, (98), 17 states have call successors, (33), 15 states have call predecessors, (33), 7 states have return successors, (18), 11 states have call predecessors, (18), 7 states have call successors, (18) [2021-10-28 23:49:23,869 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 161 transitions. [2021-10-28 23:49:23,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-10-28 23:49:23,871 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:49:23,871 INFO L513 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:49:23,904 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2021-10-28 23:49:24,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:49:24,087 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 23:49:24,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:49:24,088 INFO L85 PathProgramCache]: Analyzing trace with hash 2088002500, now seen corresponding path program 1 times [2021-10-28 23:49:24,088 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:49:24,088 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [709831686] [2021-10-28 23:49:24,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:49:24,088 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:49:24,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:49:24,095 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:49:24,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-10-28 23:49:25,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:49:25,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 115 conjunts are in the unsatisfiable core [2021-10-28 23:49:25,305 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:49:25,393 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 13 treesize of output 9 [2021-10-28 23:49:25,439 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-28 23:49:25,440 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 26 treesize of output 25 [2021-10-28 23:49:25,532 INFO L354 Elim1Store]: treesize reduction 60, result has 22.1 percent of original size [2021-10-28 23:49:25,532 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 36 treesize of output 38 [2021-10-28 23:49:25,694 INFO L354 Elim1Store]: treesize reduction 116, result has 18.3 percent of original size [2021-10-28 23:49:25,694 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 53 [2021-10-28 23:49:25,923 INFO L354 Elim1Store]: treesize reduction 172, result has 16.9 percent of original size [2021-10-28 23:49:25,924 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 58 treesize of output 66 [2021-10-28 23:49:26,160 INFO L354 Elim1Store]: treesize reduction 256, result has 14.7 percent of original size [2021-10-28 23:49:26,160 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 70 treesize of output 81 [2021-10-28 23:49:26,486 INFO L354 Elim1Store]: treesize reduction 352, result has 13.3 percent of original size [2021-10-28 23:49:26,486 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 82 treesize of output 96 [2021-10-28 23:49:26,968 INFO L354 Elim1Store]: treesize reduction 462, result has 12.2 percent of original size [2021-10-28 23:49:26,969 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 28 case distinctions, treesize of input 94 treesize of output 111 [2021-10-28 23:49:27,563 INFO L354 Elim1Store]: treesize reduction 540, result has 11.6 percent of original size [2021-10-28 23:49:27,564 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 36 case distinctions, treesize of input 102 treesize of output 122 [2021-10-28 23:49:28,241 INFO L354 Elim1Store]: treesize reduction 680, result has 10.5 percent of original size [2021-10-28 23:49:28,242 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 45 case distinctions, treesize of input 114 treesize of output 137 [2021-10-28 23:49:29,030 INFO L354 Elim1Store]: treesize reduction 796, result has 10.1 percent of original size [2021-10-28 23:49:29,031 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 55 case distinctions, treesize of input 124 treesize of output 150 [2021-10-28 23:49:30,083 INFO L354 Elim1Store]: treesize reduction 964, result has 9.2 percent of original size [2021-10-28 23:49:30,084 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 66 case distinctions, treesize of input 136 treesize of output 165 [2021-10-28 23:49:31,214 INFO L354 Elim1Store]: treesize reduction 1100, result has 8.9 percent of original size [2021-10-28 23:49:31,214 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 78 case distinctions, treesize of input 146 treesize of output 178 [2021-10-28 23:49:32,455 INFO L354 Elim1Store]: treesize reduction 1270, result has 8.4 percent of original size [2021-10-28 23:49:32,456 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 0 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 91 case distinctions, treesize of input 157 treesize of output 192 [2021-10-28 23:49:33,965 INFO L354 Elim1Store]: treesize reduction 1452, result has 7.9 percent of original size [2021-10-28 23:49:33,965 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 0 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 105 case distinctions, treesize of input 168 treesize of output 206 [2021-10-28 23:49:35,716 INFO L354 Elim1Store]: treesize reduction 1646, result has 7.5 percent of original size [2021-10-28 23:49:35,717 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 15 select indices, 15 select index equivalence classes, 0 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 120 case distinctions, treesize of input 179 treesize of output 220 [2021-10-28 23:49:41,650 WARN L860 $PredicateComparison]: unable to prove that (exists ((v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.offset)| |c_ldv_kobject_init_internal_#in~kobj.base| (let ((.cse0 (bvadd (_ bv4 32) |c_ldv_kobject_init_internal_#in~kobj.offset|))) (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_ldv_kobject_init_internal_#in~kobj.base|) (bvadd |c_ldv_kobject_init_internal_#in~kobj.offset| (_ bv12 32)) v_DerPreprocessor_1) (bvadd (_ bv13 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) v_DerPreprocessor_2) (bvadd (_ bv14 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) v_DerPreprocessor_3) (bvadd (_ bv15 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) v_DerPreprocessor_4) .cse0 .cse0) (bvadd (_ bv8 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) .cse0))) |c_#memory_$Pointer$.offset|)) is different from true [2021-10-28 23:49:43,706 WARN L860 $PredicateComparison]: unable to prove that (exists ((v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_ldv_kobject_init_#in~kobj.base| (let ((.cse0 (bvadd (_ bv4 32) |c_ldv_kobject_init_#in~kobj.offset|))) (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_ldv_kobject_init_#in~kobj.base|) (bvadd |c_ldv_kobject_init_#in~kobj.offset| (_ bv12 32)) v_DerPreprocessor_1) (bvadd (_ bv13 32) |c_ldv_kobject_init_#in~kobj.offset|) v_DerPreprocessor_2) (bvadd (_ bv14 32) |c_ldv_kobject_init_#in~kobj.offset|) v_DerPreprocessor_3) (bvadd |c_ldv_kobject_init_#in~kobj.offset| (_ bv15 32)) v_DerPreprocessor_4) .cse0 .cse0) (bvadd (_ bv8 32) |c_ldv_kobject_init_#in~kobj.offset|) .cse0))))) is different from true [2021-10-28 23:49:43,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:43,946 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-28 23:49:43,947 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 16 select indices, 16 select index equivalence classes, 120 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 185 treesize of output 195 [2021-10-28 23:49:49,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:49,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:49,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:49,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:49,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:49,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:49,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:49,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:49,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:49,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:49,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:49,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:49,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:49,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:49,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:49,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:49,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:49,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:49,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:49,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:49,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:49,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:49,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:49,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:49,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:49,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:49,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:49,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:49,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:49,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:49,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:49,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:49,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:49,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:49,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:49,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:49,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:49,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:49,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:49,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:49,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:49,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:49:49,419 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-28 23:49:49,420 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 120 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 133 treesize of output 121 [2021-10-28 23:49:52,195 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-28 23:49:52,196 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 66 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 92 treesize of output 40 [2021-10-28 23:49:52,679 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:49:52,679 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:52:11,880 WARN L207 SmtUtils]: Spent 2.20 m on a formula simplification that was a NOOP. DAG size: 152 [2021-10-28 23:52:21,043 WARN L207 SmtUtils]: Spent 6.79 s on a formula simplification that was a NOOP. DAG size: 106 [2021-10-28 23:52:29,592 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 63 treesize of output 59 [2021-10-28 23:52:31,676 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ldv_kobject_init_#in~kobj.base_BEFORE_CALL_4| (_ BitVec 32)) (|v_ldv_kobject_init_#in~kobj.offset_BEFORE_CALL_2| (_ BitVec 32))) (or (exists ((v_DerPreprocessor_19 (_ BitVec 32)) (v_DerPreprocessor_20 (_ BitVec 32)) (v_DerPreprocessor_17 (_ BitVec 32)) (v_DerPreprocessor_18 (_ BitVec 32))) (not (= (select (select (store |c_old(#memory_$Pointer$.offset)| |c_ldv_kobject_init_internal_#in~kobj.base| (let ((.cse0 (bvadd (_ bv4 32) |c_ldv_kobject_init_internal_#in~kobj.offset|))) (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_ldv_kobject_init_internal_#in~kobj.base|) (bvadd |c_ldv_kobject_init_internal_#in~kobj.offset| (_ bv12 32)) v_DerPreprocessor_17) (bvadd (_ bv13 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) v_DerPreprocessor_18) (bvadd (_ bv14 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) v_DerPreprocessor_19) (bvadd (_ bv15 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) v_DerPreprocessor_20) .cse0 .cse0) (bvadd (_ bv8 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) .cse0))) |v_ldv_kobject_init_#in~kobj.base_BEFORE_CALL_4|) |v_ldv_kobject_init_#in~kobj.offset_BEFORE_CALL_2|) (_ bv0 32)))) (= (select (select |c_#memory_$Pointer$.offset| |v_ldv_kobject_init_#in~kobj.base_BEFORE_CALL_4|) |v_ldv_kobject_init_#in~kobj.offset_BEFORE_CALL_2|) (_ bv0 32)))) is different from false [2021-10-28 23:52:34,073 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ldv_kobject_init_#in~kobj.base_BEFORE_CALL_4| (_ BitVec 32)) (|v_ldv_kobject_init_#in~kobj.offset_BEFORE_CALL_2| (_ BitVec 32))) (or (exists ((v_DerPreprocessor_19 (_ BitVec 32)) (v_DerPreprocessor_20 (_ BitVec 32)) (v_DerPreprocessor_17 (_ BitVec 32)) (v_DerPreprocessor_18 (_ BitVec 32))) (not (= (select (select (store |c_old(#memory_$Pointer$.offset)| |c_ldv_kobject_init_internal_#in~kobj.base| (let ((.cse0 (bvadd (_ bv4 32) |c_ldv_kobject_init_internal_#in~kobj.offset|))) (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_ldv_kobject_init_internal_#in~kobj.base|) (bvadd |c_ldv_kobject_init_internal_#in~kobj.offset| (_ bv12 32)) v_DerPreprocessor_17) (bvadd (_ bv13 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) v_DerPreprocessor_18) (bvadd (_ bv14 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) v_DerPreprocessor_19) (bvadd (_ bv15 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) v_DerPreprocessor_20) .cse0 .cse0) (bvadd (_ bv8 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) .cse0))) |v_ldv_kobject_init_#in~kobj.base_BEFORE_CALL_4|) |v_ldv_kobject_init_#in~kobj.offset_BEFORE_CALL_2|) (_ bv0 32)))) (= (_ bv0 32) (select (select (store |c_#memory_$Pointer$.offset| c_ldv_kobject_init_internal_~kobj.base (let ((.cse1 (bvadd (_ bv4 32) c_ldv_kobject_init_internal_~kobj.offset))) (store (store (select |c_#memory_$Pointer$.offset| c_ldv_kobject_init_internal_~kobj.base) .cse1 .cse1) (bvadd (_ bv8 32) c_ldv_kobject_init_internal_~kobj.offset) .cse1))) |v_ldv_kobject_init_#in~kobj.base_BEFORE_CALL_4|) |v_ldv_kobject_init_#in~kobj.offset_BEFORE_CALL_2|)))) is different from false [2021-10-28 23:52:34,436 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-28 23:52:34,441 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 3830258 treesize of output 3821565 [2021-10-28 23:52:53,568 WARN L207 SmtUtils]: Spent 19.12 s on a formula simplification that was a NOOP. DAG size: 2072 [2021-10-29 00:00:47,724 WARN L228 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2021-10-29 00:00:47,725 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 101 [2021-10-29 00:00:47,726 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-29 00:00:47,726 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [709831686] [2021-10-29 00:00:47,727 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") [2021-10-29 00:00:47,727 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2040581940] [2021-10-29 00:00:47,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:00:47,727 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-29 00:00:47,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/cvc4 [2021-10-29 00:00:47,728 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-29 00:00:47,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2021-10-29 00:00:50,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:00:50,096 INFO L263 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 111 conjunts are in the unsatisfiable core [2021-10-29 00:00:50,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:00:50,102 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken [2021-10-29 00:00:50,102 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1364539478] [2021-10-29 00:00:50,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:00:50,102 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 00:00:50,103 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:00:50,107 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 00:00:50,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2021-10-29 00:00:51,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:00:51,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 117 conjunts are in the unsatisfiable core [2021-10-29 00:00:51,440 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:00:51,441 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken [2021-10-29 00:00:51,441 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:00:51,441 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-10-29 00:00:51,441 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-10-29 00:00:51,441 INFO L627 BasicCegarLoop]: Counterexample might be feasible [2021-10-29 00:00:51,450 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-29 00:00:51,453 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION [2021-10-29 00:00:51,453 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION [2021-10-29 00:00:51,453 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION [2021-10-29 00:00:51,453 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION [2021-10-29 00:00:51,453 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION [2021-10-29 00:00:51,454 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION [2021-10-29 00:00:51,454 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION [2021-10-29 00:00:51,454 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION [2021-10-29 00:00:51,454 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION [2021-10-29 00:00:51,454 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION [2021-10-29 00:00:51,455 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION [2021-10-29 00:00:51,455 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION [2021-10-29 00:00:51,455 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION [2021-10-29 00:00:51,455 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION [2021-10-29 00:00:51,455 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION [2021-10-29 00:00:51,456 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION [2021-10-29 00:00:51,456 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION [2021-10-29 00:00:51,456 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION [2021-10-29 00:00:51,456 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION [2021-10-29 00:00:51,456 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION [2021-10-29 00:00:51,457 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION [2021-10-29 00:00:51,457 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION [2021-10-29 00:00:51,457 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION [2021-10-29 00:00:51,457 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION [2021-10-29 00:00:51,457 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION [2021-10-29 00:00:51,458 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION [2021-10-29 00:00:51,458 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION [2021-10-29 00:00:51,458 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION [2021-10-29 00:00:51,458 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION [2021-10-29 00:00:51,458 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION [2021-10-29 00:00:51,459 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION [2021-10-29 00:00:51,459 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION [2021-10-29 00:00:51,459 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION [2021-10-29 00:00:51,459 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION [2021-10-29 00:00:51,460 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION [2021-10-29 00:00:51,460 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION [2021-10-29 00:00:51,460 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION [2021-10-29 00:00:51,460 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION [2021-10-29 00:00:51,460 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION [2021-10-29 00:00:51,461 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION [2021-10-29 00:00:51,461 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION [2021-10-29 00:00:51,461 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION [2021-10-29 00:00:51,461 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-29 00:00:51,461 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-29 00:00:51,462 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-29 00:00:51,462 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-29 00:00:51,462 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-29 00:00:51,462 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-29 00:00:51,463 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-10-29 00:00:51,463 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION [2021-10-29 00:00:51,463 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION [2021-10-29 00:00:51,463 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION [2021-10-29 00:00:51,463 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION [2021-10-29 00:00:51,464 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION [2021-10-29 00:00:51,464 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION [2021-10-29 00:00:51,464 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION [2021-10-29 00:00:51,464 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION [2021-10-29 00:00:51,464 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-29 00:00:51,465 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-29 00:00:51,465 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-29 00:00:51,465 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-29 00:00:51,465 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-29 00:00:51,466 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION [2021-10-29 00:00:51,466 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION [2021-10-29 00:00:51,466 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION [2021-10-29 00:00:51,466 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION [2021-10-29 00:00:51,466 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION [2021-10-29 00:00:51,467 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION [2021-10-29 00:00:51,467 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION [2021-10-29 00:00:51,467 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION [2021-10-29 00:00:51,480 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/cvc4 --incremental --print-success --lang smt (25)] Forceful destruction successful, exit code 0 [2021-10-29 00:00:51,725 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2021-10-29 00:00:51,918 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2021-10-29 00:00:52,089 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/cvc4 --incremental --print-success --lang smt,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ebbe86-3a67-43fe-964c-4ea3f4475ee1/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-29 00:00:52,093 INFO L731 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:00:52,100 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 00:00:52,107 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2021-10-29 00:00:52,131 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 12:00:52 BoogieIcfgContainer [2021-10-29 00:00:52,131 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 00:00:52,133 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 00:00:52,133 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 00:00:52,134 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 00:00:52,134 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:48:14" (3/4) ... [2021-10-29 00:00:52,142 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-29 00:00:52,143 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 00:00:52,148 INFO L168 Benchmark]: Toolchain (without parser) took 760566.02 ms. Allocated memory was 60.8 MB in the beginning and 1.5 GB in the end (delta: 1.4 GB). Free memory was 39.8 MB in the beginning and 1.0 GB in the end (delta: -998.1 MB). Peak memory consumption was 405.7 MB. Max. memory is 16.1 GB. [2021-10-29 00:00:52,148 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 60.8 MB. Free memory is still 42.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 00:00:52,149 INFO L168 Benchmark]: CACSL2BoogieTranslator took 981.43 ms. Allocated memory is still 60.8 MB. Free memory was 39.6 MB in the beginning and 27.0 MB in the end (delta: 12.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-29 00:00:52,149 INFO L168 Benchmark]: Boogie Preprocessor took 137.59 ms. Allocated memory was 60.8 MB in the beginning and 88.1 MB in the end (delta: 27.3 MB). Free memory was 26.8 MB in the beginning and 67.1 MB in the end (delta: -40.2 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2021-10-29 00:00:52,150 INFO L168 Benchmark]: RCFGBuilder took 1762.72 ms. Allocated memory is still 88.1 MB. Free memory was 67.1 MB in the beginning and 44.2 MB in the end (delta: 22.8 MB). Peak memory consumption was 24.4 MB. Max. memory is 16.1 GB. [2021-10-29 00:00:52,150 INFO L168 Benchmark]: TraceAbstraction took 757665.72 ms. Allocated memory was 88.1 MB in the beginning and 1.5 GB in the end (delta: 1.4 GB). Free memory was 43.8 MB in the beginning and 1.0 GB in the end (delta: -994.2 MB). Peak memory consumption was 382.9 MB. Max. memory is 16.1 GB. [2021-10-29 00:00:52,150 INFO L168 Benchmark]: Witness Printer took 9.57 ms. Allocated memory is still 1.5 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 00:00:52,153 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 60.8 MB. Free memory is still 42.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 981.43 ms. Allocated memory is still 60.8 MB. Free memory was 39.6 MB in the beginning and 27.0 MB in the end (delta: 12.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 137.59 ms. Allocated memory was 60.8 MB in the beginning and 88.1 MB in the end (delta: 27.3 MB). Free memory was 26.8 MB in the beginning and 67.1 MB in the end (delta: -40.2 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1762.72 ms. Allocated memory is still 88.1 MB. Free memory was 67.1 MB in the beginning and 44.2 MB in the end (delta: 22.8 MB). Peak memory consumption was 24.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 757665.72 ms. Allocated memory was 88.1 MB in the beginning and 1.5 GB in the end (delta: 1.4 GB). Free memory was 43.8 MB in the beginning and 1.0 GB in the end (delta: -994.2 MB). Peak memory consumption was 382.9 MB. Max. memory is 16.1 GB. * Witness Printer took 9.57 ms. Allocated memory is still 1.5 GB. Free memory is still 1.0 GB. 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 free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; 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: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L764] CALL entry_point() [L758] struct ldv_kobject *kobj; [L759] CALL, EXPR ldv_kobject_create() [L740] struct ldv_kobject *kobj; [L741] CALL, EXPR ldv_malloc(sizeof(*kobj)) [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L741] RET, EXPR ldv_malloc(sizeof(*kobj)) [L741] kobj = ldv_malloc(sizeof(*kobj)) [L742] COND FALSE !(!kobj) [L744] FCALL memset(kobj, 0, sizeof(*kobj)) [L745] CALL ldv_kobject_init(kobj) [L730] COND FALSE !(!kobj) [L733] CALL ldv_kobject_init_internal(kobj) [L723] COND FALSE !(!kobj) [L725] CALL ldv_kref_init(&kobj->kref) [L682] ((&kref->refcount)->counter) = (1) [L725] RET ldv_kref_init(&kobj->kref) [L726] CALL LDV_INIT_LIST_HEAD(&kobj->entry) [L540] list->next = list [L541] list->prev = list [L726] RET LDV_INIT_LIST_HEAD(&kobj->entry) [L733] RET ldv_kobject_init_internal(kobj) [L745] RET ldv_kobject_init(kobj) [L746] return kobj; [L759] RET, EXPR ldv_kobject_create() [L759] kobj = ldv_kobject_create() [L760] CALL ldv_kobject_put(kobj) [L711] COND TRUE \read(*kobj) [L712] CALL ldv_kref_put(&kobj->kref, ldv_kobject_release) [L690] CALL ldv_kref_sub(kref, 1, release) [L674] CALL, EXPR ldv_atomic_sub_return(((int) count), (&kref->refcount)) [L665] int temp; [L666] EXPR v->counter [L666] temp = v->counter [L667] temp -= i [L668] v->counter = temp [L669] return temp; [L674] RET, EXPR ldv_atomic_sub_return(((int) count), (&kref->refcount)) [L674] COND TRUE (ldv_atomic_sub_return(((int) count), (&kref->refcount)) == 0) [L675] CALL release(kref) [L706] const typeof( ((struct ldv_kobject *)0)->kref ) *__mptr = (kref); [L706] struct ldv_kobject *kobj = ({ const typeof( ((struct ldv_kobject *)0)->kref ) *__mptr = (kref); (struct ldv_kobject *)( (char *)__mptr - ((size_t) &((struct ldv_kobject *)0)->kref) );}); [L707] CALL ldv_kobject_cleanup(kobj) [L699] EXPR kobj->name [L699] char *name = kobj->name; [L700] free(kobj) [L700] free(kobj) [L700] free(kobj) [L701] COND TRUE \read(*name) [L702] free(name) - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 763]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed 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: 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 47 procedures, 332 locations, 71 error locations. Started 1 CEGAR loops. OverallTime: 757.5s, OverallIterations: 23, TraceHistogramMax: 16, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 26.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 2335 SDtfs, 1177 SDslu, 16412 SDs, 0 SdLazy, 9606 SolverSat, 326 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 19.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2236 GetRequests, 1790 SyntacticMatches, 69 SemanticMatches, 377 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1924 ImplicationChecksByTransitivity, 16.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=155occurred in iteration=20, InterpolantAutomatonStates: 266, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 22 MinimizatonAttempts, 124 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 2.3s SatisfiabilityAnalysisTime, 709.8s InterpolantComputationTime, 1189 NumberOfCodeBlocks, 1153 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 2240 ConstructedInterpolants, 310 QuantifiedInterpolants, 13882 SizeOfPredicates, 128 NumberOfNonLiveVariables, 5061 ConjunctsInSsa, 440 ConjunctsInUnsatCore, 45 InterpolantComputations, 37 PerfectInterpolantSequences, 2985/3382 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 Received shutdown request...