./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_5.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_5.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fd4ad7692f5709ff8aaeaf10c342a0f425eb83bd ................................................................................................................................... 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_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_5.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fd4ad7692f5709ff8aaeaf10c342a0f425eb83bd ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 00:32:29,565 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:32:29,568 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:32:29,596 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:32:29,596 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:32:29,598 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:32:29,599 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:32:29,601 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:32:29,603 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:32:29,604 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:32:29,605 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:32:29,606 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:32:29,607 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:32:29,608 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:32:29,609 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:32:29,611 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:32:29,611 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:32:29,612 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:32:29,614 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:32:29,616 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:32:29,618 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:32:29,622 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:32:29,623 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:32:29,623 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:32:29,627 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:32:29,627 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:32:29,627 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:32:29,628 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:32:29,629 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:32:29,630 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:32:29,630 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:32:29,631 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:32:29,632 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:32:29,633 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:32:29,634 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:32:29,634 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:32:29,635 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:32:29,635 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:32:29,635 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:32:29,636 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:32:29,637 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:32:29,637 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-10-13 00:32:29,663 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:32:29,663 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:32:29,664 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:32:29,664 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:32:29,671 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:32:29,671 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:32:29,671 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:32:29,671 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:32:29,672 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:32:29,672 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 00:32:29,673 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:32:29,673 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:32:29,673 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:32:29,673 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-13 00:32:29,673 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-13 00:32:29,674 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-13 00:32:29,674 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 00:32:29,674 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 00:32:29,674 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:32:29,674 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:32:29,675 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:32:29,675 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:32:29,675 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 00:32:29,675 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:32:29,675 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:32:29,676 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 00:32:29,676 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:32:29,676 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 00:32:29,676 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:32:29,676 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_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd4ad7692f5709ff8aaeaf10c342a0f425eb83bd [2021-10-13 00:32:29,910 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:32:29,929 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:32:29,932 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:32:29,933 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:32:29,934 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:32:29,935 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_5.i [2021-10-13 00:32:29,994 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/data/7dcec45cc/cf05a31e87d0422cb9cd87199b2efe4b/FLAG7f6c0da39 [2021-10-13 00:32:30,487 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:32:30,488 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/sv-benchmarks/c/ldv-memsafety/memleaks_test22_5.i [2021-10-13 00:32:30,517 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/data/7dcec45cc/cf05a31e87d0422cb9cd87199b2efe4b/FLAG7f6c0da39 [2021-10-13 00:32:30,826 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/data/7dcec45cc/cf05a31e87d0422cb9cd87199b2efe4b [2021-10-13 00:32:30,828 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:32:30,830 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-13 00:32:30,831 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:32:30,831 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:32:30,835 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:32:30,835 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:32:30" (1/1) ... [2021-10-13 00:32:30,837 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7baf04de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:32:30, skipping insertion in model container [2021-10-13 00:32:30,837 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:32:30" (1/1) ... [2021-10-13 00:32:30,845 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:32:30,894 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:32:31,313 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:32:31,333 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-10-13 00:32:31,334 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@78e363d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:32:31, skipping insertion in model container [2021-10-13 00:32:31,334 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:32:31,335 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-10-13 00:32:31,338 INFO L168 Benchmark]: Toolchain (without parser) took 506.03 ms. Allocated memory is still 151.0 MB. Free memory was 116.9 MB in the beginning and 119.6 MB in the end (delta: -2.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-13 00:32:31,338 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 96.5 MB. Free memory is still 51.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:32:31,339 INFO L168 Benchmark]: CACSL2BoogieTranslator took 503.68 ms. Allocated memory is still 151.0 MB. Free memory was 116.9 MB in the beginning and 120.0 MB in the end (delta: -3.1 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-13 00:32:31,340 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 96.5 MB. Free memory is still 51.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 503.68 ms. Allocated memory is still 151.0 MB. Free memory was 116.9 MB in the beginning and 120.0 MB in the end (delta: -3.1 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 00:32:33,450 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:32:33,453 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:32:33,495 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:32:33,496 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:32:33,497 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:32:33,499 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:32:33,501 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:32:33,503 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:32:33,504 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:32:33,506 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:32:33,507 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:32:33,508 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:32:33,509 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:32:33,510 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:32:33,512 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:32:33,513 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:32:33,514 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:32:33,523 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:32:33,525 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:32:33,527 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:32:33,529 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:32:33,530 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:32:33,531 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:32:33,534 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:32:33,535 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:32:33,535 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:32:33,537 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:32:33,537 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:32:33,538 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:32:33,539 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:32:33,540 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:32:33,541 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:32:33,542 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:32:33,543 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:32:33,543 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:32:33,544 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:32:33,545 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:32:33,545 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:32:33,546 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:32:33,547 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:32:33,548 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-13 00:32:33,572 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:32:33,572 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:32:33,573 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:32:33,573 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:32:33,574 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:32:33,574 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:32:33,575 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:32:33,575 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:32:33,575 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:32:33,575 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 00:32:33,576 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:32:33,576 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:32:33,576 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:32:33,576 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-13 00:32:33,577 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-13 00:32:33,577 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-13 00:32:33,577 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 00:32:33,577 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 00:32:33,577 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-13 00:32:33,578 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-13 00:32:33,578 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:32:33,578 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:32:33,578 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:32:33,579 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:32:33,579 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 00:32:33,579 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:32:33,579 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:32:33,580 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 00:32:33,580 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-13 00:32:33,580 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-13 00:32:33,580 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:32:33,580 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 00:32:33,581 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_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd4ad7692f5709ff8aaeaf10c342a0f425eb83bd [2021-10-13 00:32:33,971 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:32:34,000 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:32:34,003 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:32:34,005 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:32:34,005 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:32:34,006 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_5.i [2021-10-13 00:32:34,083 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/data/7a1642dc0/217bba2271f243888b348a79a7a038da/FLAGe3a37fd17 [2021-10-13 00:32:34,760 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:32:34,760 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/sv-benchmarks/c/ldv-memsafety/memleaks_test22_5.i [2021-10-13 00:32:34,782 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/data/7a1642dc0/217bba2271f243888b348a79a7a038da/FLAGe3a37fd17 [2021-10-13 00:32:35,024 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/data/7a1642dc0/217bba2271f243888b348a79a7a038da [2021-10-13 00:32:35,031 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:32:35,033 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-13 00:32:35,036 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:32:35,036 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:32:35,039 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:32:35,040 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:32:35" (1/1) ... [2021-10-13 00:32:35,042 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f4fb89f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:32:35, skipping insertion in model container [2021-10-13 00:32:35,042 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:32:35" (1/1) ... [2021-10-13 00:32:35,049 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:32:35,115 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:32:35,635 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:32:35,657 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-13 00:32:35,676 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:32:35,729 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:32:35,736 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:32:35,797 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:32:35,857 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:32:35,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:32:35 WrapperNode [2021-10-13 00:32:35,858 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:32:35,859 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:32:35,859 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:32:35,859 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:32:35,867 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:32:35" (1/1) ... [2021-10-13 00:32:35,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:32:35" (1/1) ... [2021-10-13 00:32:35,922 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:32:35" (1/1) ... [2021-10-13 00:32:35,922 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:32:35" (1/1) ... [2021-10-13 00:32:35,971 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:32:35" (1/1) ... [2021-10-13 00:32:35,996 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:32:35" (1/1) ... [2021-10-13 00:32:36,002 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:32:35" (1/1) ... [2021-10-13 00:32:36,040 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:32:36,044 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:32:36,044 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:32:36,044 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:32:36,045 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:32:35" (1/1) ... [2021-10-13 00:32:36,058 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:32:36,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:32:36,081 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 00:32:36,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 00:32:36,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-13 00:32:36,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:32:36,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-10-13 00:32:36,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-10-13 00:32:36,135 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-10-13 00:32:36,136 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-10-13 00:32:36,136 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-10-13 00:32:36,136 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-10-13 00:32:36,136 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-10-13 00:32:36,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-10-13 00:32:36,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-10-13 00:32:36,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-10-13 00:32:36,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-10-13 00:32:36,137 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-10-13 00:32:36,137 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-10-13 00:32:36,137 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-10-13 00:32:36,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-10-13 00:32:36,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-10-13 00:32:36,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-10-13 00:32:36,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-10-13 00:32:36,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-10-13 00:32:36,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-10-13 00:32:36,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-10-13 00:32:36,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-10-13 00:32:36,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-10-13 00:32:36,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-10-13 00:32:36,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-10-13 00:32:36,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-10-13 00:32:36,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-10-13 00:32:36,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-10-13 00:32:36,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-10-13 00:32:36,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-10-13 00:32:36,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-10-13 00:32:36,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-10-13 00:32:36,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-10-13 00:32:36,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-10-13 00:32:36,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-10-13 00:32:36,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-10-13 00:32:36,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-10-13 00:32:36,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-10-13 00:32:36,140 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-10-13 00:32:36,140 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-10-13 00:32:36,140 INFO L138 BoogieDeclarations]: Found implementation of procedure f_22_get [2021-10-13 00:32:36,140 INFO L138 BoogieDeclarations]: Found implementation of procedure f_22_put [2021-10-13 00:32:36,141 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-10-13 00:32:36,141 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-13 00:32:36,141 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-10-13 00:32:36,141 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-10-13 00:32:36,141 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-10-13 00:32:36,141 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-10-13 00:32:36,141 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-10-13 00:32:36,141 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-10-13 00:32:36,141 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-10-13 00:32:36,142 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-10-13 00:32:36,142 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-10-13 00:32:36,142 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-10-13 00:32:36,142 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-10-13 00:32:36,142 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-10-13 00:32:36,142 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-10-13 00:32:36,142 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-10-13 00:32:36,142 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-10-13 00:32:36,142 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-10-13 00:32:36,143 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-10-13 00:32:36,143 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-10-13 00:32:36,143 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-10-13 00:32:36,143 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-10-13 00:32:36,143 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-10-13 00:32:36,143 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-10-13 00:32:36,143 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-10-13 00:32:36,144 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-10-13 00:32:36,144 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-10-13 00:32:36,144 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-10-13 00:32:36,144 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-10-13 00:32:36,144 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-10-13 00:32:36,144 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-10-13 00:32:36,144 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-10-13 00:32:36,144 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-10-13 00:32:36,144 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-10-13 00:32:36,145 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-10-13 00:32:36,145 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-10-13 00:32:36,145 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-10-13 00:32:36,145 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-10-13 00:32:36,145 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-10-13 00:32:36,145 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-10-13 00:32:36,145 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-10-13 00:32:36,146 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-10-13 00:32:36,146 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-10-13 00:32:36,146 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-10-13 00:32:36,146 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-10-13 00:32:36,146 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-10-13 00:32:36,146 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-10-13 00:32:36,146 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-10-13 00:32:36,146 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-10-13 00:32:36,147 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-10-13 00:32:36,147 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-10-13 00:32:36,147 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-10-13 00:32:36,147 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-10-13 00:32:36,147 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-10-13 00:32:36,147 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-10-13 00:32:36,147 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-10-13 00:32:36,148 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-10-13 00:32:36,148 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-10-13 00:32:36,148 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-10-13 00:32:36,148 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-10-13 00:32:36,148 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-10-13 00:32:36,148 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-10-13 00:32:36,148 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-10-13 00:32:36,148 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-10-13 00:32:36,149 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-10-13 00:32:36,149 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-10-13 00:32:36,149 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-10-13 00:32:36,149 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-10-13 00:32:36,149 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-13 00:32:36,149 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-10-13 00:32:36,149 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-10-13 00:32:36,149 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-10-13 00:32:36,150 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-10-13 00:32:36,150 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-10-13 00:32:36,150 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-10-13 00:32:36,150 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-10-13 00:32:36,150 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-10-13 00:32:36,150 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-10-13 00:32:36,150 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-10-13 00:32:36,151 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-10-13 00:32:36,151 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-10-13 00:32:36,151 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-10-13 00:32:36,151 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-10-13 00:32:36,151 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-10-13 00:32:36,151 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-10-13 00:32:36,151 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-10-13 00:32:36,152 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-10-13 00:32:36,152 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-10-13 00:32:36,152 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-10-13 00:32:36,152 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-10-13 00:32:36,152 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-10-13 00:32:36,152 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-10-13 00:32:36,152 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-10-13 00:32:36,152 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-10-13 00:32:36,153 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-10-13 00:32:36,153 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-10-13 00:32:36,153 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-10-13 00:32:36,153 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-10-13 00:32:36,153 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-10-13 00:32:36,153 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-10-13 00:32:36,153 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-10-13 00:32:36,153 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-10-13 00:32:36,154 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-10-13 00:32:36,154 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-10-13 00:32:36,154 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-10-13 00:32:36,154 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-10-13 00:32:36,154 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-10-13 00:32:36,154 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-10-13 00:32:36,154 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-10-13 00:32:36,155 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-10-13 00:32:36,155 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-10-13 00:32:36,155 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-10-13 00:32:36,155 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-10-13 00:32:36,155 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-13 00:32:36,155 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-10-13 00:32:36,155 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-10-13 00:32:36,155 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-10-13 00:32:36,156 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-10-13 00:32:36,156 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-10-13 00:32:36,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-13 00:32:36,156 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-10-13 00:32:36,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-10-13 00:32:36,156 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-10-13 00:32:36,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-13 00:32:36,156 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-10-13 00:32:36,157 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-10-13 00:32:36,157 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-10-13 00:32:36,157 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-13 00:32:36,157 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-10-13 00:32:36,157 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-10-13 00:32:36,157 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-10-13 00:32:36,157 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-10-13 00:32:36,158 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-10-13 00:32:36,158 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-10-13 00:32:36,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 00:32:36,158 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-10-13 00:32:36,158 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-10-13 00:32:36,158 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-10-13 00:32:36,158 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-10-13 00:32:36,158 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-10-13 00:32:36,159 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-13 00:32:36,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-13 00:32:36,159 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-10-13 00:32:36,159 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-10-13 00:32:36,159 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-10-13 00:32:36,159 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-10-13 00:32:36,159 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-10-13 00:32:36,159 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-10-13 00:32:36,164 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-10-13 00:32:36,164 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-10-13 00:32:36,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-10-13 00:32:36,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-10-13 00:32:36,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-10-13 00:32:36,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-10-13 00:32:36,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-10-13 00:32:36,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-10-13 00:32:36,166 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-10-13 00:32:36,166 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-10-13 00:32:36,166 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-10-13 00:32:36,166 INFO L130 BoogieDeclarations]: Found specification of procedure f_22_get [2021-10-13 00:32:36,166 INFO L130 BoogieDeclarations]: Found specification of procedure f_22_put [2021-10-13 00:32:36,166 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-10-13 00:32:36,166 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-13 00:32:36,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-13 00:32:36,167 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:32:36,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-13 00:32:36,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:32:36,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-10-13 00:32:36,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-10-13 00:32:36,168 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-10-13 00:32:36,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-10-13 00:32:36,170 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-10-13 00:32:36,785 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 00:32:37,134 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 00:32:37,381 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:32:37,381 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-10-13 00:32:37,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:32:37 BoogieIcfgContainer [2021-10-13 00:32:37,384 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:32:37,386 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 00:32:37,386 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 00:32:37,388 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 00:32:37,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:32:35" (1/3) ... [2021-10-13 00:32:37,389 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1368a798 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:32:37, skipping insertion in model container [2021-10-13 00:32:37,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:32:35" (2/3) ... [2021-10-13 00:32:37,390 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1368a798 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:32:37, skipping insertion in model container [2021-10-13 00:32:37,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:32:37" (3/3) ... [2021-10-13 00:32:37,391 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test22_5.i [2021-10-13 00:32:37,396 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 00:32:37,396 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 71 error locations. [2021-10-13 00:32:37,436 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 00:32:37,442 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 00:32:37,442 INFO L340 AbstractCegarLoop]: Starting to check reachability of 71 error locations. [2021-10-13 00:32:37,458 INFO L276 IsEmpty]: Start isEmpty. Operand has 155 states, 85 states have (on average 1.4588235294117646) internal successors, (124), 115 states have internal predecessors, (124), 21 states have call successors, (21), 19 states have call predecessors, (21), 19 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2021-10-13 00:32:37,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-13 00:32:37,479 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:32:37,480 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:32:37,480 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)] === [2021-10-13 00:32:37,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:32:37,485 INFO L82 PathProgramCache]: Analyzing trace with hash -604206848, now seen corresponding path program 1 times [2021-10-13 00:32:37,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:32:37,496 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [657089097] [2021-10-13 00:32:37,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:32:37,497 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:32:37,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:32:37,501 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:32:37,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-13 00:32:37,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:32:37,711 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 00:32:37,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:32:37,822 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-13 00:32:37,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:32:37,890 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:32:38,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:32:38,022 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:32:38,022 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [657089097] [2021-10-13 00:32:38,023 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [657089097] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:32:38,024 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:32:38,032 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-13 00:32:38,034 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776885554] [2021-10-13 00:32:38,038 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 00:32:38,040 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:32:38,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 00:32:38,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:32:38,061 INFO L87 Difference]: Start difference. First operand has 155 states, 85 states have (on average 1.4588235294117646) internal successors, (124), 115 states have internal predecessors, (124), 21 states have call successors, (21), 19 states have call predecessors, (21), 19 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) 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) [2021-10-13 00:32:38,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:32:38,324 INFO L93 Difference]: Finished difference Result 137 states and 148 transitions. [2021-10-13 00:32:38,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 00:32:38,326 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 [2021-10-13 00:32:38,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:32:38,339 INFO L225 Difference]: With dead ends: 137 [2021-10-13 00:32:38,339 INFO L226 Difference]: Without dead ends: 134 [2021-10-13 00:32:38,340 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 27 SyntacticMatches, 3 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 27.6ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:32:38,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2021-10-13 00:32:38,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 128. [2021-10-13 00:32:38,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 71 states have (on average 1.3943661971830985) internal successors, (99), 92 states have internal predecessors, (99), 20 states have call successors, (20), 18 states have call predecessors, (20), 18 states have return successors, (20), 19 states have call predecessors, (20), 19 states have call successors, (20) [2021-10-13 00:32:38,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 139 transitions. [2021-10-13 00:32:38,425 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 139 transitions. Word has length 17 [2021-10-13 00:32:38,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:32:38,425 INFO L470 AbstractCegarLoop]: Abstraction has 128 states and 139 transitions. [2021-10-13 00:32:38,425 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) [2021-10-13 00:32:38,426 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 139 transitions. [2021-10-13 00:32:38,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-13 00:32:38,426 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:32:38,427 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:32:38,444 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-13 00:32:38,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:32:38,652 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)] === [2021-10-13 00:32:38,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:32:38,653 INFO L82 PathProgramCache]: Analyzing trace with hash -604206847, now seen corresponding path program 1 times [2021-10-13 00:32:38,653 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:32:38,653 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [588279776] [2021-10-13 00:32:38,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:32:38,654 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:32:38,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:32:38,655 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:32:38,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-13 00:32:38,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:32:38,839 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-13 00:32:38,840 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:32:38,893 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-13 00:32:39,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:32:39,003 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:32:39,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:32:39,398 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:32:39,398 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [588279776] [2021-10-13 00:32:39,399 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [588279776] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:32:39,399 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:32:39,399 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-10-13 00:32:39,399 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532641957] [2021-10-13 00:32:39,400 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-13 00:32:39,401 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:32:39,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-13 00:32:39,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-10-13 00:32:39,402 INFO L87 Difference]: Start difference. First operand 128 states and 139 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) [2021-10-13 00:32:39,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:32:39,954 INFO L93 Difference]: Finished difference Result 133 states and 144 transitions. [2021-10-13 00:32:39,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 00:32:39,955 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 [2021-10-13 00:32:39,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:32:39,957 INFO L225 Difference]: With dead ends: 133 [2021-10-13 00:32:39,957 INFO L226 Difference]: Without dead ends: 133 [2021-10-13 00:32:39,958 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 214.1ms TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-10-13 00:32:39,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2021-10-13 00:32:39,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 128. [2021-10-13 00:32:39,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 70 states have (on average 1.4) internal successors, (98), 92 states have internal predecessors, (98), 20 states have call successors, (20), 18 states have call predecessors, (20), 18 states have return successors, (20), 19 states have call predecessors, (20), 19 states have call successors, (20) [2021-10-13 00:32:39,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 138 transitions. [2021-10-13 00:32:39,969 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 138 transitions. Word has length 17 [2021-10-13 00:32:39,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:32:39,969 INFO L470 AbstractCegarLoop]: Abstraction has 128 states and 138 transitions. [2021-10-13 00:32:39,970 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) [2021-10-13 00:32:39,970 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 138 transitions. [2021-10-13 00:32:39,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-13 00:32:39,971 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:32:39,971 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:32:39,982 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-13 00:32:40,181 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:32:40,182 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)] === [2021-10-13 00:32:40,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:32:40,182 INFO L82 PathProgramCache]: Analyzing trace with hash -575577697, now seen corresponding path program 1 times [2021-10-13 00:32:40,183 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:32:40,183 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2004451471] [2021-10-13 00:32:40,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:32:40,183 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:32:40,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:32:40,187 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:32:40,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-13 00:32:40,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:32:40,330 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 00:32:40,331 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:32:40,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:32:40,442 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:32:40,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:32:40,545 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:32:40,545 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2004451471] [2021-10-13 00:32:40,545 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2004451471] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:32:40,545 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:32:40,545 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-13 00:32:40,546 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026690242] [2021-10-13 00:32:40,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 00:32:40,546 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:32:40,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 00:32:40,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:32:40,549 INFO L87 Difference]: Start difference. First operand 128 states and 138 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) [2021-10-13 00:32:40,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:32:40,582 INFO L93 Difference]: Finished difference Result 127 states and 135 transitions. [2021-10-13 00:32:40,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 00:32:40,588 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 [2021-10-13 00:32:40,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:32:40,592 INFO L225 Difference]: With dead ends: 127 [2021-10-13 00:32:40,593 INFO L226 Difference]: Without dead ends: 127 [2021-10-13 00:32:40,593 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 22.1ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:32:40,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2021-10-13 00:32:40,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 125. [2021-10-13 00:32:40,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 69 states have (on average 1.3768115942028984) internal successors, (95), 89 states have internal predecessors, (95), 19 states have call successors, (19), 18 states have call predecessors, (19), 18 states have return successors, (19), 19 states have call predecessors, (19), 18 states have call successors, (19) [2021-10-13 00:32:40,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 133 transitions. [2021-10-13 00:32:40,611 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 133 transitions. Word has length 17 [2021-10-13 00:32:40,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:32:40,611 INFO L470 AbstractCegarLoop]: Abstraction has 125 states and 133 transitions. [2021-10-13 00:32:40,611 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) [2021-10-13 00:32:40,611 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 133 transitions. [2021-10-13 00:32:40,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-13 00:32:40,613 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:32:40,613 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:32:40,627 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-13 00:32:40,825 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:32:40,825 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)] === [2021-10-13 00:32:40,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:32:40,825 INFO L82 PathProgramCache]: Analyzing trace with hash -811306797, now seen corresponding path program 1 times [2021-10-13 00:32:40,826 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:32:40,826 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [94061220] [2021-10-13 00:32:40,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:32:40,826 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:32:40,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:32:40,828 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:32:40,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-13 00:32:41,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:32:41,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 00:32:41,018 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:32:41,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:32:41,123 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:32:41,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:32:41,238 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:32:41,238 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [94061220] [2021-10-13 00:32:41,239 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [94061220] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:32:41,239 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:32:41,239 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-13 00:32:41,239 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852377611] [2021-10-13 00:32:41,240 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 00:32:41,240 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:32:41,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 00:32:41,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:32:41,241 INFO L87 Difference]: Start difference. First operand 125 states and 133 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-13 00:32:41,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:32:41,265 INFO L93 Difference]: Finished difference Result 127 states and 134 transitions. [2021-10-13 00:32:41,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 00:32:41,271 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 31 [2021-10-13 00:32:41,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:32:41,273 INFO L225 Difference]: With dead ends: 127 [2021-10-13 00:32:41,273 INFO L226 Difference]: Without dead ends: 127 [2021-10-13 00:32:41,273 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.7ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:32:41,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2021-10-13 00:32:41,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 125. [2021-10-13 00:32:41,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 69 states have (on average 1.3623188405797102) internal successors, (94), 89 states have internal predecessors, (94), 19 states have call successors, (19), 18 states have call predecessors, (19), 18 states have return successors, (19), 19 states have call predecessors, (19), 18 states have call successors, (19) [2021-10-13 00:32:41,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 132 transitions. [2021-10-13 00:32:41,282 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 132 transitions. Word has length 31 [2021-10-13 00:32:41,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:32:41,282 INFO L470 AbstractCegarLoop]: Abstraction has 125 states and 132 transitions. [2021-10-13 00:32:41,282 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-13 00:32:41,283 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 132 transitions. [2021-10-13 00:32:41,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-13 00:32:41,284 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:32:41,284 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:32:41,300 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-13 00:32:41,496 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:32:41,496 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)] === [2021-10-13 00:32:41,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:32:41,497 INFO L82 PathProgramCache]: Analyzing trace with hash -1220131022, now seen corresponding path program 1 times [2021-10-13 00:32:41,497 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:32:41,497 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [399630745] [2021-10-13 00:32:41,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:32:41,498 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:32:41,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:32:41,499 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:32:41,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-13 00:32:41,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:32:41,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-13 00:32:41,711 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:32:41,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:32:41,924 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:32:42,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:32:42,082 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:32:42,083 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [399630745] [2021-10-13 00:32:42,083 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [399630745] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:32:42,083 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:32:42,083 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 9 [2021-10-13 00:32:42,083 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704678446] [2021-10-13 00:32:42,083 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-13 00:32:42,084 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:32:42,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-13 00:32:42,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-10-13 00:32:42,084 INFO L87 Difference]: Start difference. First operand 125 states and 132 transitions. Second operand has 9 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 4 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-13 00:32:42,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:32:42,186 INFO L93 Difference]: Finished difference Result 142 states and 151 transitions. [2021-10-13 00:32:42,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-13 00:32:42,187 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 4 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 31 [2021-10-13 00:32:42,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:32:42,188 INFO L225 Difference]: With dead ends: 142 [2021-10-13 00:32:42,188 INFO L226 Difference]: Without dead ends: 142 [2021-10-13 00:32:42,189 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 108.0ms TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-10-13 00:32:42,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2021-10-13 00:32:42,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 138. [2021-10-13 00:32:42,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 76 states have (on average 1.3289473684210527) internal successors, (101), 97 states have internal predecessors, (101), 22 states have call successors, (22), 20 states have call predecessors, (22), 21 states have return successors, (23), 22 states have call predecessors, (23), 21 states have call successors, (23) [2021-10-13 00:32:42,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 146 transitions. [2021-10-13 00:32:42,199 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 146 transitions. Word has length 31 [2021-10-13 00:32:42,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:32:42,200 INFO L470 AbstractCegarLoop]: Abstraction has 138 states and 146 transitions. [2021-10-13 00:32:42,200 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 4 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-13 00:32:42,200 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 146 transitions. [2021-10-13 00:32:42,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-13 00:32:42,201 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:32:42,201 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:32:42,217 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-13 00:32:42,413 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:32:42,414 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)] === [2021-10-13 00:32:42,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:32:42,414 INFO L82 PathProgramCache]: Analyzing trace with hash 536113147, now seen corresponding path program 1 times [2021-10-13 00:32:42,414 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:32:42,414 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [426213967] [2021-10-13 00:32:42,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:32:42,415 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:32:42,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:32:42,416 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:32:42,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-13 00:32:42,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:32:42,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 00:32:42,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:32:42,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:32:42,726 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:32:42,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:32:42,837 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:32:42,837 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [426213967] [2021-10-13 00:32:42,837 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [426213967] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:32:42,837 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:32:42,838 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-13 00:32:42,838 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34446710] [2021-10-13 00:32:42,840 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 00:32:42,840 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:32:42,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 00:32:42,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-13 00:32:42,841 INFO L87 Difference]: Start difference. First operand 138 states and 146 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) [2021-10-13 00:32:42,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:32:42,884 INFO L93 Difference]: Finished difference Result 144 states and 152 transitions. [2021-10-13 00:32:42,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 00:32:42,885 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 [2021-10-13 00:32:42,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:32:42,886 INFO L225 Difference]: With dead ends: 144 [2021-10-13 00:32:42,886 INFO L226 Difference]: Without dead ends: 140 [2021-10-13 00:32:42,887 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 29.2ms TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2021-10-13 00:32:42,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2021-10-13 00:32:42,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2021-10-13 00:32:42,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 78 states have (on average 1.3205128205128205) internal successors, (103), 99 states have internal predecessors, (103), 22 states have call successors, (22), 20 states have call predecessors, (22), 21 states have return successors, (23), 22 states have call predecessors, (23), 21 states have call successors, (23) [2021-10-13 00:32:42,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 148 transitions. [2021-10-13 00:32:42,913 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 148 transitions. Word has length 32 [2021-10-13 00:32:42,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:32:42,915 INFO L470 AbstractCegarLoop]: Abstraction has 140 states and 148 transitions. [2021-10-13 00:32:42,916 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) [2021-10-13 00:32:42,917 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 148 transitions. [2021-10-13 00:32:42,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-13 00:32:42,919 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:32:42,919 INFO L512 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] [2021-10-13 00:32:42,934 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-13 00:32:43,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:32:43,133 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)] === [2021-10-13 00:32:43,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:32:43,135 INFO L82 PathProgramCache]: Analyzing trace with hash 690495131, now seen corresponding path program 1 times [2021-10-13 00:32:43,136 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:32:43,138 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2038077382] [2021-10-13 00:32:43,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:32:43,139 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:32:43,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:32:43,143 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:32:43,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-13 00:32:43,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:32:43,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 00:32:43,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:32:43,526 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:32:43,526 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:32:43,715 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:32:43,715 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:32:43,715 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2038077382] [2021-10-13 00:32:43,715 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2038077382] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 00:32:43,715 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:32:43,715 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-10-13 00:32:43,715 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403315525] [2021-10-13 00:32:43,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-13 00:32:43,716 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:32:43,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-13 00:32:43,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-10-13 00:32:43,717 INFO L87 Difference]: Start difference. First operand 140 states and 148 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) [2021-10-13 00:32:43,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:32:43,908 INFO L93 Difference]: Finished difference Result 148 states and 158 transitions. [2021-10-13 00:32:43,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-13 00:32:43,909 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 [2021-10-13 00:32:43,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:32:43,910 INFO L225 Difference]: With dead ends: 148 [2021-10-13 00:32:43,910 INFO L226 Difference]: Without dead ends: 144 [2021-10-13 00:32:43,910 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 172.9ms TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2021-10-13 00:32:43,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2021-10-13 00:32:43,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2021-10-13 00:32:43,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 82 states have (on average 1.3048780487804879) internal successors, (107), 103 states have internal predecessors, (107), 22 states have call successors, (22), 20 states have call predecessors, (22), 21 states have return successors, (23), 22 states have call predecessors, (23), 21 states have call successors, (23) [2021-10-13 00:32:43,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 152 transitions. [2021-10-13 00:32:43,917 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 152 transitions. Word has length 34 [2021-10-13 00:32:43,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:32:43,918 INFO L470 AbstractCegarLoop]: Abstraction has 144 states and 152 transitions. [2021-10-13 00:32:43,918 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) [2021-10-13 00:32:43,918 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 152 transitions. [2021-10-13 00:32:43,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-10-13 00:32:43,920 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:32:43,920 INFO L512 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, 1, 1, 1, 1] [2021-10-13 00:32:43,937 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-13 00:32:44,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:32:44,132 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)] === [2021-10-13 00:32:44,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:32:44,132 INFO L82 PathProgramCache]: Analyzing trace with hash 780110635, now seen corresponding path program 1 times [2021-10-13 00:32:44,132 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:32:44,132 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [671609827] [2021-10-13 00:32:44,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:32:44,133 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:32:44,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:32:44,133 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:32:44,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-13 00:32:44,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:32:44,387 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-13 00:32:44,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:32:44,495 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-13 00:32:44,496 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:32:44,757 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-13 00:32:44,757 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:32:44,757 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [671609827] [2021-10-13 00:32:44,757 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [671609827] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:32:44,757 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:32:44,757 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-13 00:32:44,757 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534724402] [2021-10-13 00:32:44,758 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:32:44,758 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:32:44,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:32:44,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:32:44,758 INFO L87 Difference]: Start difference. First operand 144 states and 152 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-10-13 00:32:44,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:32:44,896 INFO L93 Difference]: Finished difference Result 157 states and 165 transitions. [2021-10-13 00:32:44,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:32:44,897 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 36 [2021-10-13 00:32:44,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:32:44,899 INFO L225 Difference]: With dead ends: 157 [2021-10-13 00:32:44,899 INFO L226 Difference]: Without dead ends: 137 [2021-10-13 00:32:44,899 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:32:44,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2021-10-13 00:32:44,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 127. [2021-10-13 00:32:44,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 72 states have (on average 1.3333333333333333) internal successors, (96), 92 states have internal predecessors, (96), 19 states have call successors, (19), 18 states have call predecessors, (19), 17 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2021-10-13 00:32:44,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 133 transitions. [2021-10-13 00:32:44,905 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 133 transitions. Word has length 36 [2021-10-13 00:32:44,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:32:44,905 INFO L470 AbstractCegarLoop]: Abstraction has 127 states and 133 transitions. [2021-10-13 00:32:44,905 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-10-13 00:32:44,905 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 133 transitions. [2021-10-13 00:32:44,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-10-13 00:32:44,906 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:32:44,907 INFO L512 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] [2021-10-13 00:32:44,923 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-13 00:32:45,123 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:32:45,124 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)] === [2021-10-13 00:32:45,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:32:45,124 INFO L82 PathProgramCache]: Analyzing trace with hash -2002385957, now seen corresponding path program 2 times [2021-10-13 00:32:45,124 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:32:45,124 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1419153021] [2021-10-13 00:32:45,125 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 00:32:45,125 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:32:45,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:32:45,126 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:32:45,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-13 00:32:45,359 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-13 00:32:45,360 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:32:45,363 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-13 00:32:45,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:32:45,400 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-13 00:32:45,668 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-10-13 00:32:45,668 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:32:45,874 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-10-13 00:32:45,875 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:32:45,875 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1419153021] [2021-10-13 00:32:45,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1419153021] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:32:45,875 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:32:45,875 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 11 [2021-10-13 00:32:45,875 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738269198] [2021-10-13 00:32:45,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-13 00:32:45,876 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:32:45,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-13 00:32:45,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-10-13 00:32:45,877 INFO L87 Difference]: Start difference. First operand 127 states and 133 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) [2021-10-13 00:32:46,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:32:46,733 INFO L93 Difference]: Finished difference Result 152 states and 166 transitions. [2021-10-13 00:32:46,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-13 00:32:46,733 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 [2021-10-13 00:32:46,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:32:46,735 INFO L225 Difference]: With dead ends: 152 [2021-10-13 00:32:46,735 INFO L226 Difference]: Without dead ends: 152 [2021-10-13 00:32:46,735 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 56 SyntacticMatches, 9 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 228.4ms TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2021-10-13 00:32:46,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2021-10-13 00:32:46,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 126. [2021-10-13 00:32:46,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 72 states have (on average 1.3194444444444444) internal successors, (95), 91 states have internal predecessors, (95), 19 states have call successors, (19), 18 states have call predecessors, (19), 17 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2021-10-13 00:32:46,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 132 transitions. [2021-10-13 00:32:46,742 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 132 transitions. Word has length 38 [2021-10-13 00:32:46,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:32:46,742 INFO L470 AbstractCegarLoop]: Abstraction has 126 states and 132 transitions. [2021-10-13 00:32:46,742 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) [2021-10-13 00:32:46,743 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 132 transitions. [2021-10-13 00:32:46,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-10-13 00:32:46,744 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:32:46,744 INFO L512 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] [2021-10-13 00:32:46,757 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-13 00:32:46,944 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:32:46,944 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)] === [2021-10-13 00:32:46,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:32:46,945 INFO L82 PathProgramCache]: Analyzing trace with hash -2002385956, now seen corresponding path program 1 times [2021-10-13 00:32:46,945 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:32:46,945 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1421070818] [2021-10-13 00:32:46,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:32:46,945 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:32:46,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:32:46,946 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:32:46,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-13 00:32:47,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:32:47,207 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-13 00:32:47,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:32:47,373 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:32:47,374 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:32:47,820 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:32:47,820 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:32:47,821 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1421070818] [2021-10-13 00:32:47,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1421070818] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 00:32:47,821 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:32:47,821 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2021-10-13 00:32:47,821 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042139212] [2021-10-13 00:32:47,822 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-10-13 00:32:47,822 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:32:47,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-13 00:32:47,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2021-10-13 00:32:47,823 INFO L87 Difference]: Start difference. First operand 126 states and 132 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) [2021-10-13 00:32:48,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:32:48,535 INFO L93 Difference]: Finished difference Result 138 states and 150 transitions. [2021-10-13 00:32:48,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-13 00:32:48,535 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 [2021-10-13 00:32:48,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:32:48,537 INFO L225 Difference]: With dead ends: 138 [2021-10-13 00:32:48,537 INFO L226 Difference]: Without dead ends: 134 [2021-10-13 00:32:48,538 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 757.7ms TimeCoverageRelationStatistics Valid=223, Invalid=377, Unknown=0, NotChecked=0, Total=600 [2021-10-13 00:32:48,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2021-10-13 00:32:48,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2021-10-13 00:32:48,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 80 states have (on average 1.2875) internal successors, (103), 99 states have internal predecessors, (103), 19 states have call successors, (19), 18 states have call predecessors, (19), 17 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2021-10-13 00:32:48,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 140 transitions. [2021-10-13 00:32:48,543 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 140 transitions. Word has length 38 [2021-10-13 00:32:48,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:32:48,543 INFO L470 AbstractCegarLoop]: Abstraction has 134 states and 140 transitions. [2021-10-13 00:32:48,544 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) [2021-10-13 00:32:48,544 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 140 transitions. [2021-10-13 00:32:48,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-10-13 00:32:48,545 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:32:48,545 INFO L512 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] [2021-10-13 00:32:48,561 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-13 00:32:48,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:32:48,761 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)] === [2021-10-13 00:32:48,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:32:48,761 INFO L82 PathProgramCache]: Analyzing trace with hash 1528032860, now seen corresponding path program 2 times [2021-10-13 00:32:48,762 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:32:48,762 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1381047129] [2021-10-13 00:32:48,762 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 00:32:48,762 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:32:48,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:32:48,763 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:32:48,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-13 00:32:49,030 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-13 00:32:49,030 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:32:49,033 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-13 00:32:49,036 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:32:49,082 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-13 00:32:49,544 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-10-13 00:32:49,545 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:32:50,685 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-10-13 00:32:50,685 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:32:50,685 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1381047129] [2021-10-13 00:32:50,685 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1381047129] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:32:50,685 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:32:50,686 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 11] imperfect sequences [] total 22 [2021-10-13 00:32:50,686 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763320601] [2021-10-13 00:32:50,686 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-13 00:32:50,686 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:32:50,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-13 00:32:50,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2021-10-13 00:32:50,688 INFO L87 Difference]: Start difference. First operand 134 states and 140 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) [2021-10-13 00:32:52,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:32:52,621 INFO L93 Difference]: Finished difference Result 133 states and 139 transitions. [2021-10-13 00:32:52,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-13 00:32:52,622 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 [2021-10-13 00:32:52,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:32:52,623 INFO L225 Difference]: With dead ends: 133 [2021-10-13 00:32:52,623 INFO L226 Difference]: Without dead ends: 133 [2021-10-13 00:32:52,624 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 69 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 1047.2ms TimeCoverageRelationStatistics Valid=88, Invalid=614, Unknown=0, NotChecked=0, Total=702 [2021-10-13 00:32:52,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2021-10-13 00:32:52,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2021-10-13 00:32:52,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 80 states have (on average 1.275) internal successors, (102), 98 states have internal predecessors, (102), 19 states have call successors, (19), 18 states have call predecessors, (19), 17 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2021-10-13 00:32:52,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 139 transitions. [2021-10-13 00:32:52,629 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 139 transitions. Word has length 46 [2021-10-13 00:32:52,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:32:52,630 INFO L470 AbstractCegarLoop]: Abstraction has 133 states and 139 transitions. [2021-10-13 00:32:52,630 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) [2021-10-13 00:32:52,630 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 139 transitions. [2021-10-13 00:32:52,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-10-13 00:32:52,631 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:32:52,631 INFO L512 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] [2021-10-13 00:32:52,644 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-10-13 00:32:52,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:32:52,840 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)] === [2021-10-13 00:32:52,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:32:52,842 INFO L82 PathProgramCache]: Analyzing trace with hash 1472640772, now seen corresponding path program 1 times [2021-10-13 00:32:52,843 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:32:52,843 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [641401330] [2021-10-13 00:32:52,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:32:52,844 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:32:52,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:32:52,849 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:32:52,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-10-13 00:32:53,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:32:53,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-13 00:32:53,224 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:32:53,540 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:32:53,540 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:32:54,608 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:32:54,608 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:32:54,608 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [641401330] [2021-10-13 00:32:54,608 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [641401330] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 00:32:54,608 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:32:54,608 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 34 [2021-10-13 00:32:54,609 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493113133] [2021-10-13 00:32:54,609 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-10-13 00:32:54,609 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:32:54,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-10-13 00:32:54,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=230, Invalid=892, Unknown=0, NotChecked=0, Total=1122 [2021-10-13 00:32:54,611 INFO L87 Difference]: Start difference. First operand 133 states and 139 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) [2021-10-13 00:32:55,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:32:55,167 INFO L93 Difference]: Finished difference Result 139 states and 145 transitions. [2021-10-13 00:32:55,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-13 00:32:55,168 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 [2021-10-13 00:32:55,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:32:55,169 INFO L225 Difference]: With dead ends: 139 [2021-10-13 00:32:55,169 INFO L226 Difference]: Without dead ends: 135 [2021-10-13 00:32:55,170 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 884.2ms TimeCoverageRelationStatistics Valid=250, Invalid=940, Unknown=0, NotChecked=0, Total=1190 [2021-10-13 00:32:55,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2021-10-13 00:32:55,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 135. [2021-10-13 00:32:55,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 82 states have (on average 1.2682926829268293) internal successors, (104), 100 states have internal predecessors, (104), 19 states have call successors, (19), 18 states have call predecessors, (19), 17 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2021-10-13 00:32:55,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 141 transitions. [2021-10-13 00:32:55,176 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 141 transitions. Word has length 51 [2021-10-13 00:32:55,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:32:55,176 INFO L470 AbstractCegarLoop]: Abstraction has 135 states and 141 transitions. [2021-10-13 00:32:55,177 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) [2021-10-13 00:32:55,177 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 141 transitions. [2021-10-13 00:32:55,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-13 00:32:55,178 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:32:55,178 INFO L512 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] [2021-10-13 00:32:55,204 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (13)] Ended with exit code 0 [2021-10-13 00:32:55,408 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:32:55,408 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)] === [2021-10-13 00:32:55,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:32:55,409 INFO L82 PathProgramCache]: Analyzing trace with hash 680412260, now seen corresponding path program 2 times [2021-10-13 00:32:55,409 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:32:55,409 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1726788845] [2021-10-13 00:32:55,409 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 00:32:55,410 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:32:55,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:32:55,411 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:32:55,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-10-13 00:32:55,757 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-13 00:32:55,757 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:32:55,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-13 00:32:55,762 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:32:55,792 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-13 00:32:56,160 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-13 00:32:56,160 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:32:56,360 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-13 00:32:56,360 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:32:56,360 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1726788845] [2021-10-13 00:32:56,360 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1726788845] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:32:56,360 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:32:56,360 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 11 [2021-10-13 00:32:56,361 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793327119] [2021-10-13 00:32:56,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-13 00:32:56,361 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:32:56,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-13 00:32:56,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-10-13 00:32:56,362 INFO L87 Difference]: Start difference. First operand 135 states and 141 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) [2021-10-13 00:32:57,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:32:57,037 INFO L93 Difference]: Finished difference Result 159 states and 173 transitions. [2021-10-13 00:32:57,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-13 00:32:57,037 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 [2021-10-13 00:32:57,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:32:57,038 INFO L225 Difference]: With dead ends: 159 [2021-10-13 00:32:57,038 INFO L226 Difference]: Without dead ends: 159 [2021-10-13 00:32:57,039 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 85 SyntacticMatches, 10 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 214.8ms TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2021-10-13 00:32:57,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2021-10-13 00:32:57,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 133. [2021-10-13 00:32:57,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 82 states have (on average 1.2439024390243902) internal successors, (102), 98 states have internal predecessors, (102), 19 states have call successors, (19), 18 states have call predecessors, (19), 17 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2021-10-13 00:32:57,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 139 transitions. [2021-10-13 00:32:57,052 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 139 transitions. Word has length 53 [2021-10-13 00:32:57,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:32:57,053 INFO L470 AbstractCegarLoop]: Abstraction has 133 states and 139 transitions. [2021-10-13 00:32:57,053 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) [2021-10-13 00:32:57,053 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 139 transitions. [2021-10-13 00:32:57,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-13 00:32:57,054 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:32:57,054 INFO L512 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] [2021-10-13 00:32:57,065 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-10-13 00:32:57,254 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:32:57,254 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)] === [2021-10-13 00:32:57,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:32:57,255 INFO L82 PathProgramCache]: Analyzing trace with hash 680412261, now seen corresponding path program 1 times [2021-10-13 00:32:57,255 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:32:57,255 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [273852555] [2021-10-13 00:32:57,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:32:57,256 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:32:57,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:32:57,256 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:32:57,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-10-13 00:32:57,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:32:57,633 INFO L263 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-13 00:32:57,634 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:32:57,683 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-13 00:32:58,145 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-13 00:32:58,145 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:32:59,189 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-13 00:32:59,189 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:32:59,189 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [273852555] [2021-10-13 00:32:59,189 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [273852555] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:32:59,189 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:32:59,189 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 11] imperfect sequences [] total 22 [2021-10-13 00:32:59,190 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134681931] [2021-10-13 00:32:59,190 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-13 00:32:59,190 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:32:59,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-13 00:32:59,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2021-10-13 00:32:59,191 INFO L87 Difference]: Start difference. First operand 133 states and 139 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) [2021-10-13 00:33:01,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:33:01,226 INFO L93 Difference]: Finished difference Result 131 states and 137 transitions. [2021-10-13 00:33:01,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-13 00:33:01,226 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 [2021-10-13 00:33:01,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:33:01,229 INFO L225 Difference]: With dead ends: 131 [2021-10-13 00:33:01,229 INFO L226 Difference]: Without dead ends: 131 [2021-10-13 00:33:01,229 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 81 SyntacticMatches, 3 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 1034.2ms TimeCoverageRelationStatistics Valid=88, Invalid=614, Unknown=0, NotChecked=0, Total=702 [2021-10-13 00:33:01,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2021-10-13 00:33:01,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2021-10-13 00:33:01,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 82 states have (on average 1.2195121951219512) internal successors, (100), 96 states have internal predecessors, (100), 19 states have call successors, (19), 18 states have call predecessors, (19), 17 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2021-10-13 00:33:01,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 137 transitions. [2021-10-13 00:33:01,241 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 137 transitions. Word has length 53 [2021-10-13 00:33:01,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:33:01,243 INFO L470 AbstractCegarLoop]: Abstraction has 131 states and 137 transitions. [2021-10-13 00:33:01,243 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) [2021-10-13 00:33:01,243 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 137 transitions. [2021-10-13 00:33:01,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-10-13 00:33:01,245 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:33:01,245 INFO L512 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] [2021-10-13 00:33:01,262 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-10-13 00:33:01,458 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:33:01,458 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)] === [2021-10-13 00:33:01,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:33:01,458 INFO L82 PathProgramCache]: Analyzing trace with hash 1848313328, now seen corresponding path program 1 times [2021-10-13 00:33:01,459 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:33:01,459 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [944729368] [2021-10-13 00:33:01,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:33:01,459 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:33:01,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:33:01,459 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:33:01,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-10-13 00:33:01,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:33:01,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-13 00:33:01,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:33:02,139 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-13 00:33:02,139 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:33:02,342 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-13 00:33:02,343 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:33:02,343 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [944729368] [2021-10-13 00:33:02,343 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [944729368] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:33:02,343 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:33:02,343 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 8 [2021-10-13 00:33:02,343 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547549909] [2021-10-13 00:33:02,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-13 00:33:02,344 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:33:02,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-13 00:33:02,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-10-13 00:33:02,345 INFO L87 Difference]: Start difference. First operand 131 states and 137 transitions. Second operand has 8 states, 8 states have (on average 3.75) internal successors, (30), 7 states have internal predecessors, (30), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2021-10-13 00:33:02,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:33:02,388 INFO L93 Difference]: Finished difference Result 133 states and 138 transitions. [2021-10-13 00:33:02,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 00:33:02,389 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 7 states have internal predecessors, (30), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) Word has length 60 [2021-10-13 00:33:02,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:33:02,390 INFO L225 Difference]: With dead ends: 133 [2021-10-13 00:33:02,390 INFO L226 Difference]: Without dead ends: 131 [2021-10-13 00:33:02,390 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 37.3ms TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-10-13 00:33:02,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2021-10-13 00:33:02,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2021-10-13 00:33:02,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 82 states have (on average 1.2073170731707317) internal successors, (99), 95 states have internal predecessors, (99), 19 states have call successors, (19), 18 states have call predecessors, (19), 17 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2021-10-13 00:33:02,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 136 transitions. [2021-10-13 00:33:02,395 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 136 transitions. Word has length 60 [2021-10-13 00:33:02,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:33:02,396 INFO L470 AbstractCegarLoop]: Abstraction has 131 states and 136 transitions. [2021-10-13 00:33:02,396 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 7 states have internal predecessors, (30), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2021-10-13 00:33:02,396 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 136 transitions. [2021-10-13 00:33:02,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-10-13 00:33:02,397 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:33:02,397 INFO L512 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] [2021-10-13 00:33:02,413 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-10-13 00:33:02,609 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:33:02,610 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)] === [2021-10-13 00:33:02,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:33:02,610 INFO L82 PathProgramCache]: Analyzing trace with hash -1123996245, now seen corresponding path program 1 times [2021-10-13 00:33:02,611 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:33:02,611 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [720037294] [2021-10-13 00:33:02,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:33:02,611 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:33:02,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:33:02,612 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:33:02,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-10-13 00:33:03,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:33:03,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-13 00:33:03,038 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:33:03,208 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-13 00:33:03,208 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:33:03,531 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-13 00:33:03,532 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:33:03,532 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [720037294] [2021-10-13 00:33:03,532 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [720037294] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:33:03,532 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:33:03,532 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 11 [2021-10-13 00:33:03,532 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671071396] [2021-10-13 00:33:03,532 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-13 00:33:03,532 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:33:03,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-13 00:33:03,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-10-13 00:33:03,533 INFO L87 Difference]: Start difference. First operand 131 states and 136 transitions. Second operand has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 10 states have internal predecessors, (35), 5 states have call successors, (14), 2 states have call predecessors, (14), 5 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) [2021-10-13 00:33:03,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:33:03,626 INFO L93 Difference]: Finished difference Result 135 states and 139 transitions. [2021-10-13 00:33:03,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-13 00:33:03,627 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 10 states have internal predecessors, (35), 5 states have call successors, (14), 2 states have call predecessors, (14), 5 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) Word has length 65 [2021-10-13 00:33:03,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:33:03,628 INFO L225 Difference]: With dead ends: 135 [2021-10-13 00:33:03,628 INFO L226 Difference]: Without dead ends: 131 [2021-10-13 00:33:03,628 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 78.1ms TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-10-13 00:33:03,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2021-10-13 00:33:03,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2021-10-13 00:33:03,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 82 states have (on average 1.1951219512195121) internal successors, (98), 94 states have internal predecessors, (98), 19 states have call successors, (19), 18 states have call predecessors, (19), 17 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2021-10-13 00:33:03,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 135 transitions. [2021-10-13 00:33:03,635 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 135 transitions. Word has length 65 [2021-10-13 00:33:03,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:33:03,635 INFO L470 AbstractCegarLoop]: Abstraction has 131 states and 135 transitions. [2021-10-13 00:33:03,636 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 10 states have internal predecessors, (35), 5 states have call successors, (14), 2 states have call predecessors, (14), 5 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) [2021-10-13 00:33:03,636 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 135 transitions. [2021-10-13 00:33:03,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-10-13 00:33:03,637 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:33:03,637 INFO L512 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] [2021-10-13 00:33:03,654 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-10-13 00:33:03,850 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:33:03,851 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)] === [2021-10-13 00:33:03,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:33:03,851 INFO L82 PathProgramCache]: Analyzing trace with hash -638447166, now seen corresponding path program 1 times [2021-10-13 00:33:03,851 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:33:03,851 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2027092216] [2021-10-13 00:33:03,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:33:03,852 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:33:03,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:33:03,852 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:33:03,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-10-13 00:33:04,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:33:04,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 26 conjunts are in the unsatisfiable core [2021-10-13 00:33:04,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:33:04,380 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-13 00:33:04,921 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-13 00:33:04,922 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:33:05,355 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-13 00:33:05,355 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:33:05,356 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2027092216] [2021-10-13 00:33:05,356 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2027092216] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:33:05,356 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:33:05,356 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18, 17] imperfect sequences [] total 18 [2021-10-13 00:33:05,356 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362384248] [2021-10-13 00:33:05,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-13 00:33:05,357 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:33:05,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-13 00:33:05,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2021-10-13 00:33:05,358 INFO L87 Difference]: Start difference. First operand 131 states and 135 transitions. Second operand has 19 states, 14 states have (on average 4.0) internal successors, (56), 12 states have internal predecessors, (56), 8 states have call successors, (20), 7 states have call predecessors, (20), 4 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) [2021-10-13 00:33:06,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:33:06,544 INFO L93 Difference]: Finished difference Result 183 states and 200 transitions. [2021-10-13 00:33:06,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-13 00:33:06,545 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 14 states have (on average 4.0) internal successors, (56), 12 states have internal predecessors, (56), 8 states have call successors, (20), 7 states have call predecessors, (20), 4 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) Word has length 76 [2021-10-13 00:33:06,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:33:06,546 INFO L225 Difference]: With dead ends: 183 [2021-10-13 00:33:06,546 INFO L226 Difference]: Without dead ends: 183 [2021-10-13 00:33:06,547 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 118 SyntacticMatches, 16 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 463.4ms TimeCoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2021-10-13 00:33:06,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2021-10-13 00:33:06,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 157. [2021-10-13 00:33:06,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 100 states have (on average 1.19) internal successors, (119), 113 states have internal predecessors, (119), 22 states have call successors, (22), 22 states have call predecessors, (22), 23 states have return successors, (26), 21 states have call predecessors, (26), 21 states have call successors, (26) [2021-10-13 00:33:06,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 167 transitions. [2021-10-13 00:33:06,555 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 167 transitions. Word has length 76 [2021-10-13 00:33:06,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:33:06,556 INFO L470 AbstractCegarLoop]: Abstraction has 157 states and 167 transitions. [2021-10-13 00:33:06,556 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 14 states have (on average 4.0) internal successors, (56), 12 states have internal predecessors, (56), 8 states have call successors, (20), 7 states have call predecessors, (20), 4 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) [2021-10-13 00:33:06,556 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 167 transitions. [2021-10-13 00:33:06,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-10-13 00:33:06,557 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:33:06,558 INFO L512 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] [2021-10-13 00:33:06,573 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-10-13 00:33:06,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:33:06,768 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)] === [2021-10-13 00:33:06,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:33:06,768 INFO L82 PathProgramCache]: Analyzing trace with hash -638447165, now seen corresponding path program 1 times [2021-10-13 00:33:06,768 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:33:06,768 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1426065123] [2021-10-13 00:33:06,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:33:06,769 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:33:06,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:33:06,770 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:33:06,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-10-13 00:33:07,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:33:07,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 36 conjunts are in the unsatisfiable core [2021-10-13 00:33:07,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:33:07,339 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-13 00:33:08,093 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-13 00:33:08,093 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:33:10,395 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-13 00:33:10,395 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:33:10,395 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1426065123] [2021-10-13 00:33:10,395 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1426065123] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:33:10,396 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:33:10,396 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19, 18] imperfect sequences [] total 36 [2021-10-13 00:33:10,398 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839951057] [2021-10-13 00:33:10,398 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2021-10-13 00:33:10,398 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:33:10,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-10-13 00:33:10,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=1229, Unknown=0, NotChecked=0, Total=1332 [2021-10-13 00:33:10,400 INFO L87 Difference]: Start difference. First operand 157 states and 167 transitions. Second operand has 37 states, 28 states have (on average 2.5714285714285716) internal successors, (72), 23 states have internal predecessors, (72), 14 states have call successors, (25), 12 states have call predecessors, (25), 6 states have return successors, (15), 8 states have call predecessors, (15), 4 states have call successors, (15) [2021-10-13 00:33:13,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:33:13,665 INFO L93 Difference]: Finished difference Result 155 states and 163 transitions. [2021-10-13 00:33:13,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-13 00:33:13,666 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 28 states have (on average 2.5714285714285716) internal successors, (72), 23 states have internal predecessors, (72), 14 states have call successors, (25), 12 states have call predecessors, (25), 6 states have return successors, (15), 8 states have call predecessors, (15), 4 states have call successors, (15) Word has length 76 [2021-10-13 00:33:13,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:33:13,667 INFO L225 Difference]: With dead ends: 155 [2021-10-13 00:33:13,668 INFO L226 Difference]: Without dead ends: 155 [2021-10-13 00:33:13,669 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 113 SyntacticMatches, 3 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 425 ImplicationChecksByTransitivity, 2506.3ms TimeCoverageRelationStatistics Valid=151, Invalid=1741, Unknown=0, NotChecked=0, Total=1892 [2021-10-13 00:33:13,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2021-10-13 00:33:13,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2021-10-13 00:33:13,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 100 states have (on average 1.15) internal successors, (115), 111 states have internal predecessors, (115), 22 states have call successors, (22), 22 states have call predecessors, (22), 23 states have return successors, (26), 21 states have call predecessors, (26), 21 states have call successors, (26) [2021-10-13 00:33:13,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 163 transitions. [2021-10-13 00:33:13,676 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 163 transitions. Word has length 76 [2021-10-13 00:33:13,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:33:13,676 INFO L470 AbstractCegarLoop]: Abstraction has 155 states and 163 transitions. [2021-10-13 00:33:13,676 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 28 states have (on average 2.5714285714285716) internal successors, (72), 23 states have internal predecessors, (72), 14 states have call successors, (25), 12 states have call predecessors, (25), 6 states have return successors, (15), 8 states have call predecessors, (15), 4 states have call successors, (15) [2021-10-13 00:33:13,676 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 163 transitions. [2021-10-13 00:33:13,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-10-13 00:33:13,678 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:33:13,678 INFO L512 BasicCegarLoop]: trace histogram [16, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:33:13,708 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (19)] Ended with exit code 0 [2021-10-13 00:33:13,892 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:33:13,892 INFO L402 AbstractCegarLoop]: === Iteration 19 === 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)] === [2021-10-13 00:33:13,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:33:13,893 INFO L82 PathProgramCache]: Analyzing trace with hash 1131008798, now seen corresponding path program 1 times [2021-10-13 00:33:13,893 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:33:13,893 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [546310949] [2021-10-13 00:33:13,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:33:13,893 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:33:13,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:33:13,894 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:33:13,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-10-13 00:33:14,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:33:14,461 INFO L263 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-13 00:33:14,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:33:14,703 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-13 00:33:14,704 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:33:15,077 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-13 00:33:15,077 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:33:15,078 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [546310949] [2021-10-13 00:33:15,078 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [546310949] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:33:15,078 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:33:15,078 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 14 [2021-10-13 00:33:15,078 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946197903] [2021-10-13 00:33:15,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-13 00:33:15,079 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:33:15,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-13 00:33:15,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2021-10-13 00:33:15,080 INFO L87 Difference]: Start difference. First operand 155 states and 163 transitions. Second operand has 14 states, 11 states have (on average 4.090909090909091) internal successors, (45), 12 states have internal predecessors, (45), 6 states have call successors, (17), 2 states have call predecessors, (17), 5 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) [2021-10-13 00:33:15,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:33:15,190 INFO L93 Difference]: Finished difference Result 159 states and 165 transitions. [2021-10-13 00:33:15,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-13 00:33:15,190 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 11 states have (on average 4.090909090909091) internal successors, (45), 12 states have internal predecessors, (45), 6 states have call successors, (17), 2 states have call predecessors, (17), 5 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) Word has length 83 [2021-10-13 00:33:15,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:33:15,191 INFO L225 Difference]: With dead ends: 159 [2021-10-13 00:33:15,193 INFO L226 Difference]: Without dead ends: 153 [2021-10-13 00:33:15,194 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 128.8ms TimeCoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2021-10-13 00:33:15,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2021-10-13 00:33:15,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2021-10-13 00:33:15,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 99 states have (on average 1.1313131313131313) internal successors, (112), 109 states have internal predecessors, (112), 22 states have call successors, (22), 22 states have call predecessors, (22), 22 states have return successors, (25), 21 states have call predecessors, (25), 21 states have call successors, (25) [2021-10-13 00:33:15,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 159 transitions. [2021-10-13 00:33:15,200 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 159 transitions. Word has length 83 [2021-10-13 00:33:15,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:33:15,201 INFO L470 AbstractCegarLoop]: Abstraction has 153 states and 159 transitions. [2021-10-13 00:33:15,201 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 11 states have (on average 4.090909090909091) internal successors, (45), 12 states have internal predecessors, (45), 6 states have call successors, (17), 2 states have call predecessors, (17), 5 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) [2021-10-13 00:33:15,201 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 159 transitions. [2021-10-13 00:33:15,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-10-13 00:33:15,202 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:33:15,203 INFO L512 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] [2021-10-13 00:33:15,216 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-10-13 00:33:15,415 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:33:15,416 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)] === [2021-10-13 00:33:15,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:33:15,416 INFO L82 PathProgramCache]: Analyzing trace with hash 1628283129, now seen corresponding path program 1 times [2021-10-13 00:33:15,416 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:33:15,416 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1553712809] [2021-10-13 00:33:15,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:33:15,417 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:33:15,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:33:15,418 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:33:15,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-10-13 00:33:16,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:33:16,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 38 conjunts are in the unsatisfiable core [2021-10-13 00:33:16,106 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:33:16,129 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-13 00:33:16,853 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-13 00:33:16,854 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:33:17,315 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-13 00:33:17,315 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:33:17,315 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1553712809] [2021-10-13 00:33:17,316 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1553712809] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:33:17,316 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:33:17,316 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22, 21] imperfect sequences [] total 22 [2021-10-13 00:33:17,316 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884529253] [2021-10-13 00:33:17,316 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-13 00:33:17,316 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:33:17,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-13 00:33:17,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=443, Unknown=0, NotChecked=0, Total=506 [2021-10-13 00:33:17,317 INFO L87 Difference]: Start difference. First operand 153 states and 159 transitions. Second operand has 23 states, 17 states have (on average 4.176470588235294) internal successors, (71), 14 states have internal predecessors, (71), 10 states have call successors, (24), 9 states have call predecessors, (24), 4 states have return successors, (15), 6 states have call predecessors, (15), 4 states have call successors, (15) [2021-10-13 00:33:19,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:33:19,072 INFO L93 Difference]: Finished difference Result 186 states and 202 transitions. [2021-10-13 00:33:19,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-13 00:33:19,073 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 17 states have (on average 4.176470588235294) internal successors, (71), 14 states have internal predecessors, (71), 10 states have call successors, (24), 9 states have call predecessors, (24), 4 states have return successors, (15), 6 states have call predecessors, (15), 4 states have call successors, (15) Word has length 89 [2021-10-13 00:33:19,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:33:19,074 INFO L225 Difference]: With dead ends: 186 [2021-10-13 00:33:19,074 INFO L226 Difference]: Without dead ends: 186 [2021-10-13 00:33:19,075 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 138 SyntacticMatches, 18 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 672.1ms TimeCoverageRelationStatistics Valid=103, Invalid=827, Unknown=0, NotChecked=0, Total=930 [2021-10-13 00:33:19,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2021-10-13 00:33:19,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 159. [2021-10-13 00:33:19,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 103 states have (on average 1.1262135922330097) internal successors, (116), 112 states have internal predecessors, (116), 25 states have call successors, (25), 25 states have call predecessors, (25), 22 states have return successors, (28), 21 states have call predecessors, (28), 24 states have call successors, (28) [2021-10-13 00:33:19,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 169 transitions. [2021-10-13 00:33:19,086 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 169 transitions. Word has length 89 [2021-10-13 00:33:19,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:33:19,087 INFO L470 AbstractCegarLoop]: Abstraction has 159 states and 169 transitions. [2021-10-13 00:33:19,087 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 17 states have (on average 4.176470588235294) internal successors, (71), 14 states have internal predecessors, (71), 10 states have call successors, (24), 9 states have call predecessors, (24), 4 states have return successors, (15), 6 states have call predecessors, (15), 4 states have call successors, (15) [2021-10-13 00:33:19,087 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 169 transitions. [2021-10-13 00:33:19,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-10-13 00:33:19,088 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:33:19,088 INFO L512 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] [2021-10-13 00:33:19,105 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2021-10-13 00:33:19,289 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:33:19,289 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)] === [2021-10-13 00:33:19,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:33:19,289 INFO L82 PathProgramCache]: Analyzing trace with hash 1628283130, now seen corresponding path program 1 times [2021-10-13 00:33:19,290 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:33:19,290 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [262226684] [2021-10-13 00:33:19,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:33:19,290 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:33:19,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:33:19,291 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:33:19,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-10-13 00:33:20,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:33:20,024 INFO L263 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 48 conjunts are in the unsatisfiable core [2021-10-13 00:33:20,027 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:33:20,061 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-13 00:33:21,013 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-13 00:33:21,013 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:33:23,915 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-13 00:33:23,915 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:33:23,915 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [262226684] [2021-10-13 00:33:23,915 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [262226684] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:33:23,915 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:33:23,915 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23, 22] imperfect sequences [] total 44 [2021-10-13 00:33:23,916 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151383523] [2021-10-13 00:33:23,916 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2021-10-13 00:33:23,916 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:33:23,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2021-10-13 00:33:23,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=1853, Unknown=0, NotChecked=0, Total=1980 [2021-10-13 00:33:23,918 INFO L87 Difference]: Start difference. First operand 159 states and 169 transitions. Second operand has 45 states, 34 states have (on average 2.6470588235294117) internal successors, (90), 27 states have internal predecessors, (90), 18 states have call successors, (31), 16 states have call predecessors, (31), 6 states have return successors, (17), 10 states have call predecessors, (17), 6 states have call successors, (17) [2021-10-13 00:33:28,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:33:28,808 INFO L93 Difference]: Finished difference Result 157 states and 166 transitions. [2021-10-13 00:33:28,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-13 00:33:28,809 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 34 states have (on average 2.6470588235294117) internal successors, (90), 27 states have internal predecessors, (90), 18 states have call successors, (31), 16 states have call predecessors, (31), 6 states have return successors, (17), 10 states have call predecessors, (17), 6 states have call successors, (17) Word has length 89 [2021-10-13 00:33:28,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:33:28,810 INFO L225 Difference]: With dead ends: 157 [2021-10-13 00:33:28,810 INFO L226 Difference]: Without dead ends: 157 [2021-10-13 00:33:28,812 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 129 SyntacticMatches, 5 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 674 ImplicationChecksByTransitivity, 3503.1ms TimeCoverageRelationStatistics Valid=189, Invalid=2673, Unknown=0, NotChecked=0, Total=2862 [2021-10-13 00:33:28,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2021-10-13 00:33:28,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157. [2021-10-13 00:33:28,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 103 states have (on average 1.0970873786407767) internal successors, (113), 110 states have internal predecessors, (113), 25 states have call successors, (25), 25 states have call predecessors, (25), 22 states have return successors, (28), 21 states have call predecessors, (28), 24 states have call successors, (28) [2021-10-13 00:33:28,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 166 transitions. [2021-10-13 00:33:28,818 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 166 transitions. Word has length 89 [2021-10-13 00:33:28,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:33:28,818 INFO L470 AbstractCegarLoop]: Abstraction has 157 states and 166 transitions. [2021-10-13 00:33:28,819 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 34 states have (on average 2.6470588235294117) internal successors, (90), 27 states have internal predecessors, (90), 18 states have call successors, (31), 16 states have call predecessors, (31), 6 states have return successors, (17), 10 states have call predecessors, (17), 6 states have call successors, (17) [2021-10-13 00:33:28,819 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 166 transitions. [2021-10-13 00:33:28,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-10-13 00:33:28,820 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:33:28,820 INFO L512 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] [2021-10-13 00:33:28,836 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2021-10-13 00:33:29,031 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:33:29,032 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)] === [2021-10-13 00:33:29,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:33:29,032 INFO L82 PathProgramCache]: Analyzing trace with hash 822322196, now seen corresponding path program 1 times [2021-10-13 00:33:29,032 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:33:29,032 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1501915560] [2021-10-13 00:33:29,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:33:29,033 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:33:29,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:33:29,033 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:33:29,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-10-13 00:33:29,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:33:29,784 INFO L263 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 25 conjunts are in the unsatisfiable core [2021-10-13 00:33:29,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:33:31,217 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-13 00:33:31,218 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:33:32,199 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-13 00:33:32,199 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:33:32,199 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1501915560] [2021-10-13 00:33:32,199 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1501915560] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:33:32,199 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:33:32,199 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23, 21] imperfect sequences [] total 43 [2021-10-13 00:33:32,199 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695980416] [2021-10-13 00:33:32,200 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2021-10-13 00:33:32,200 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:33:32,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2021-10-13 00:33:32,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=1726, Unknown=0, NotChecked=0, Total=1892 [2021-10-13 00:33:32,202 INFO L87 Difference]: Start difference. First operand 157 states and 166 transitions. Second operand has 44 states, 33 states have (on average 3.0303030303030303) internal successors, (100), 26 states have internal predecessors, (100), 19 states have call successors, (35), 17 states have call predecessors, (35), 7 states have return successors, (18), 11 states have call predecessors, (18), 7 states have call successors, (18) [2021-10-13 00:33:34,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:33:34,341 INFO L93 Difference]: Finished difference Result 156 states and 165 transitions. [2021-10-13 00:33:34,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-13 00:33:34,342 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 33 states have (on average 3.0303030303030303) internal successors, (100), 26 states have internal predecessors, (100), 19 states have call successors, (35), 17 states have call predecessors, (35), 7 states have return successors, (18), 11 states have call predecessors, (18), 7 states have call successors, (18) Word has length 92 [2021-10-13 00:33:34,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:33:34,343 INFO L225 Difference]: With dead ends: 156 [2021-10-13 00:33:34,343 INFO L226 Difference]: Without dead ends: 156 [2021-10-13 00:33:34,344 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 136 SyntacticMatches, 5 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 611 ImplicationChecksByTransitivity, 1719.6ms TimeCoverageRelationStatistics Valid=230, Invalid=2422, Unknown=0, NotChecked=0, Total=2652 [2021-10-13 00:33:34,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2021-10-13 00:33:34,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2021-10-13 00:33:34,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 103 states have (on average 1.087378640776699) internal successors, (112), 109 states have internal predecessors, (112), 25 states have call successors, (25), 25 states have call predecessors, (25), 22 states have return successors, (28), 21 states have call predecessors, (28), 24 states have call successors, (28) [2021-10-13 00:33:34,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 165 transitions. [2021-10-13 00:33:34,351 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 165 transitions. Word has length 92 [2021-10-13 00:33:34,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:33:34,351 INFO L470 AbstractCegarLoop]: Abstraction has 156 states and 165 transitions. [2021-10-13 00:33:34,352 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 33 states have (on average 3.0303030303030303) internal successors, (100), 26 states have internal predecessors, (100), 19 states have call successors, (35), 17 states have call predecessors, (35), 7 states have return successors, (18), 11 states have call predecessors, (18), 7 states have call successors, (18) [2021-10-13 00:33:34,352 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 165 transitions. [2021-10-13 00:33:34,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-10-13 00:33:34,353 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:33:34,353 INFO L512 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, 1, 1] [2021-10-13 00:33:34,368 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2021-10-13 00:33:34,567 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:33:34,568 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)] === [2021-10-13 00:33:34,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:33:34,568 INFO L82 PathProgramCache]: Analyzing trace with hash -692582595, now seen corresponding path program 1 times [2021-10-13 00:33:34,568 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:33:34,569 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [722584023] [2021-10-13 00:33:34,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:33:34,569 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:33:34,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:33:34,569 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:33:34,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-10-13 00:33:35,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:33:35,518 INFO L263 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 121 conjunts are in the unsatisfiable core [2021-10-13 00:33:35,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:33:35,610 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 [2021-10-13 00:33:35,650 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-13 00:33:35,651 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 [2021-10-13 00:33:35,719 INFO L354 Elim1Store]: treesize reduction 68, result has 20.9 percent of original size [2021-10-13 00:33:35,719 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 38 treesize of output 40 [2021-10-13 00:33:35,851 INFO L354 Elim1Store]: treesize reduction 126, result has 18.2 percent of original size [2021-10-13 00:33:35,851 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 50 treesize of output 55 [2021-10-13 00:33:36,007 INFO L354 Elim1Store]: treesize reduction 198, result has 16.1 percent of original size [2021-10-13 00:33:36,007 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 62 treesize of output 70 [2021-10-13 00:33:36,195 INFO L354 Elim1Store]: treesize reduction 246, result has 15.2 percent of original size [2021-10-13 00:33:36,195 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 69 treesize of output 80 [2021-10-13 00:33:36,439 INFO L354 Elim1Store]: treesize reduction 332, result has 13.8 percent of original size [2021-10-13 00:33:36,439 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 80 treesize of output 94 [2021-10-13 00:33:36,774 INFO L354 Elim1Store]: treesize reduction 444, result has 12.3 percent of original size [2021-10-13 00:33:36,775 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 92 treesize of output 109 [2021-10-13 00:33:37,153 INFO L354 Elim1Store]: treesize reduction 540, result has 11.6 percent of original size [2021-10-13 00:33:37,153 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 [2021-10-13 00:33:37,652 INFO L354 Elim1Store]: treesize reduction 680, result has 10.5 percent of original size [2021-10-13 00:33:37,652 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 [2021-10-13 00:33:38,212 INFO L354 Elim1Store]: treesize reduction 828, result has 9.8 percent of original size [2021-10-13 00:33:38,212 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 126 treesize of output 152 [2021-10-13 00:33:38,926 INFO L354 Elim1Store]: treesize reduction 990, result has 9.2 percent of original size [2021-10-13 00:33:38,927 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 138 treesize of output 167 [2021-10-13 00:33:39,810 INFO L354 Elim1Store]: treesize reduction 1100, result has 8.9 percent of original size [2021-10-13 00:33:39,811 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 [2021-10-13 00:33:40,823 INFO L354 Elim1Store]: treesize reduction 1270, result has 8.4 percent of original size [2021-10-13 00:33:40,823 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 [2021-10-13 00:33:42,017 INFO L354 Elim1Store]: treesize reduction 1452, result has 7.9 percent of original size [2021-10-13 00:33:42,017 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 [2021-10-13 00:33:43,441 INFO L354 Elim1Store]: treesize reduction 1646, result has 7.5 percent of original size [2021-10-13 00:33:43,441 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 [2021-10-13 00:33:48,538 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 [2021-10-13 00:33:50,599 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 [2021-10-13 00:33:50,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:50,798 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 00:33:50,799 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 [2021-10-13 00:33:55,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:55,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:55,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:55,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:55,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:55,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:55,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:55,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:55,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:55,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:55,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:55,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:55,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:55,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:55,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:55,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:55,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:55,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:55,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:55,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:55,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:55,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:55,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:55,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:55,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:55,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:55,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:55,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:55,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:55,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:55,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:55,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:55,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:55,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:55,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:55,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:55,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:55,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:55,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:55,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:55,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:55,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 00:33:56,003 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 00:33:56,003 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 [2021-10-13 00:33:58,277 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 00:33:58,278 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 [2021-10-13 00:33:58,769 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:33:58,769 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:36:16,720 WARN L207 SmtUtils]: Spent 2.20 m on a formula simplification that was a NOOP. DAG size: 152 [2021-10-13 00:36:28,523 WARN L207 SmtUtils]: Spent 10.27 s on a formula simplification that was a NOOP. DAG size: 106 [2021-10-13 00:36:34,889 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 [2021-10-13 00:36:36,989 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 [2021-10-13 00:36:39,241 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 [2021-10-13 00:36:39,489 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 00:36:39,492 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 [2021-10-13 00:36:55,067 WARN L207 SmtUtils]: Spent 15.57 s on a formula simplification that was a NOOP. DAG size: 2072 [2021-10-13 00:45:15,876 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 101 [2021-10-13 00:45:15,877 WARN L228 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2021-10-13 00:45:15,878 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:45:15,878 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [722584023] [2021-10-13 00:45:15,879 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/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") [2021-10-13 00:45:15,879 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1908177371] [2021-10-13 00:45:15,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:45:15,879 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 00:45:15,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/cvc4 [2021-10-13 00:45:15,880 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 00:45:15,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2021-10-13 00:45:18,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:45:18,343 INFO L263 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 117 conjunts are in the unsatisfiable core [2021-10-13 00:45:18,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:45:18,349 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken [2021-10-13 00:45:18,349 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1578709377] [2021-10-13 00:45:18,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:45:18,349 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:45:18,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:45:18,350 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:45:18,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2021-10-13 00:45:19,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:45:19,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 123 conjunts are in the unsatisfiable core [2021-10-13 00:45:19,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:45:19,609 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken [2021-10-13 00:45:19,610 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:45:19,610 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-10-13 00:45:19,610 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-10-13 00:45:19,610 INFO L626 BasicCegarLoop]: Counterexample might be feasible [2021-10-13 00:45:19,619 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:45:19,621 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION [2021-10-13 00:45:19,622 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION [2021-10-13 00:45:19,622 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION [2021-10-13 00:45:19,622 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION [2021-10-13 00:45:19,622 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION [2021-10-13 00:45:19,623 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION [2021-10-13 00:45:19,623 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION [2021-10-13 00:45:19,623 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION [2021-10-13 00:45:19,623 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION [2021-10-13 00:45:19,624 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION [2021-10-13 00:45:19,624 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION [2021-10-13 00:45:19,624 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION [2021-10-13 00:45:19,624 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION [2021-10-13 00:45:19,624 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION [2021-10-13 00:45:19,625 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION [2021-10-13 00:45:19,625 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION [2021-10-13 00:45:19,625 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION [2021-10-13 00:45:19,625 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION [2021-10-13 00:45:19,625 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION [2021-10-13 00:45:19,626 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION [2021-10-13 00:45:19,626 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION [2021-10-13 00:45:19,626 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION [2021-10-13 00:45:19,626 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION [2021-10-13 00:45:19,627 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION [2021-10-13 00:45:19,627 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION [2021-10-13 00:45:19,627 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION [2021-10-13 00:45:19,627 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION [2021-10-13 00:45:19,627 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION [2021-10-13 00:45:19,628 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION [2021-10-13 00:45:19,628 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION [2021-10-13 00:45:19,628 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION [2021-10-13 00:45:19,628 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION [2021-10-13 00:45:19,628 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION [2021-10-13 00:45:19,629 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION [2021-10-13 00:45:19,629 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION [2021-10-13 00:45:19,629 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION [2021-10-13 00:45:19,629 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION [2021-10-13 00:45:19,629 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION [2021-10-13 00:45:19,630 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION [2021-10-13 00:45:19,630 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION [2021-10-13 00:45:19,630 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION [2021-10-13 00:45:19,630 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION [2021-10-13 00:45:19,630 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:45:19,631 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:45:19,631 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:45:19,631 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:45:19,631 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:45:19,632 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:45:19,632 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-10-13 00:45:19,632 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION [2021-10-13 00:45:19,632 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION [2021-10-13 00:45:19,632 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION [2021-10-13 00:45:19,633 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION [2021-10-13 00:45:19,633 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION [2021-10-13 00:45:19,633 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION [2021-10-13 00:45:19,633 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION [2021-10-13 00:45:19,633 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION [2021-10-13 00:45:19,634 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:45:19,634 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:45:19,634 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:45:19,634 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:45:19,635 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:45:19,635 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION [2021-10-13 00:45:19,635 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION [2021-10-13 00:45:19,635 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION [2021-10-13 00:45:19,635 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION [2021-10-13 00:45:19,636 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION [2021-10-13 00:45:19,636 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION [2021-10-13 00:45:19,636 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION [2021-10-13 00:45:19,636 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION [2021-10-13 00:45:19,653 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/cvc4 --incremental --print-success --lang smt (25)] Forceful destruction successful, exit code 0 [2021-10-13 00:45:19,902 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2021-10-13 00:45:20,082 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2021-10-13 00:45:20,268 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/cvc4 --incremental --print-success --lang smt,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84c95c5-fa44-46e3-95de-0ac7b0c3547f/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:45:20,274 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 00:45:20,283 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2021-10-13 00:45:20,294 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 12:45:20 BoogieIcfgContainer [2021-10-13 00:45:20,294 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 00:45:20,295 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:45:20,295 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:45:20,295 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:45:20,295 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:32:37" (3/4) ... [2021-10-13 00:45:20,298 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-13 00:45:20,299 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:45:20,300 INFO L168 Benchmark]: Toolchain (without parser) took 765266.05 ms. Allocated memory was 69.2 MB in the beginning and 1.4 GB in the end (delta: 1.3 GB). Free memory was 47.0 MB in the beginning and 961.2 MB in the end (delta: -914.2 MB). Peak memory consumption was 386.9 MB. Max. memory is 16.1 GB. [2021-10-13 00:45:20,300 INFO L168 Benchmark]: CDTParser took 0.93 ms. Allocated memory is still 69.2 MB. Free memory is still 49.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:45:20,300 INFO L168 Benchmark]: CACSL2BoogieTranslator took 822.27 ms. Allocated memory is still 69.2 MB. Free memory was 46.8 MB in the beginning and 34.2 MB in the end (delta: 12.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 00:45:20,301 INFO L168 Benchmark]: Boogie Preprocessor took 184.44 ms. Allocated memory is still 69.2 MB. Free memory was 34.2 MB in the beginning and 49.8 MB in the end (delta: -15.6 MB). Peak memory consumption was 11.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:45:20,301 INFO L168 Benchmark]: RCFGBuilder took 1340.26 ms. Allocated memory was 69.2 MB in the beginning and 90.2 MB in the end (delta: 21.0 MB). Free memory was 49.8 MB in the beginning and 45.1 MB in the end (delta: 4.7 MB). Peak memory consumption was 25.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:45:20,302 INFO L168 Benchmark]: TraceAbstraction took 762908.64 ms. Allocated memory was 90.2 MB in the beginning and 1.4 GB in the end (delta: 1.3 GB). Free memory was 44.6 MB in the beginning and 962.2 MB in the end (delta: -917.6 MB). Peak memory consumption was 364.0 MB. Max. memory is 16.1 GB. [2021-10-13 00:45:20,302 INFO L168 Benchmark]: Witness Printer took 4.09 ms. Allocated memory is still 1.4 GB. Free memory is still 961.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:45:20,303 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.93 ms. Allocated memory is still 69.2 MB. Free memory is still 49.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 822.27 ms. Allocated memory is still 69.2 MB. Free memory was 46.8 MB in the beginning and 34.2 MB in the end (delta: 12.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 184.44 ms. Allocated memory is still 69.2 MB. Free memory was 34.2 MB in the beginning and 49.8 MB in the end (delta: -15.6 MB). Peak memory consumption was 11.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1340.26 ms. Allocated memory was 69.2 MB in the beginning and 90.2 MB in the end (delta: 21.0 MB). Free memory was 49.8 MB in the beginning and 45.1 MB in the end (delta: 4.7 MB). Peak memory consumption was 25.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 762908.64 ms. Allocated memory was 90.2 MB in the beginning and 1.4 GB in the end (delta: 1.3 GB). Free memory was 44.6 MB in the beginning and 962.2 MB in the end (delta: -917.6 MB). Peak memory consumption was 364.0 MB. Max. memory is 16.1 GB. * Witness Printer took 4.09 ms. Allocated memory is still 1.4 GB. Free memory is still 961.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification 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, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 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) }; [L770] CALL entry_point() [L764] struct ldv_kobject *kobj; [L765] 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; [L765] RET, EXPR ldv_kobject_create() [L765] kobj = ldv_kobject_create() [L766] CALL f_22_put(kobj) [L761] 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: 769]: 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 49 procedures, 341 locations, 71 error locations. Started 1 CEGAR loops. OverallTime: 762837.6ms, OverallIterations: 23, TraceHistogramMax: 16, EmptinessCheckTime: 50.1ms, AutomataDifference: 21724.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 11.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 2409 SDtfs, 1258 SDslu, 19332 SDs, 0 SdLazy, 10820 SolverSat, 352 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 15978.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2299 GetRequests, 1821 SyntacticMatches, 73 SemanticMatches, 405 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2296 ImplicationChecksByTransitivity, 13864.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=159occurred in iteration=20, InterpolantAutomatonStates: 281, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 253.5ms AutomataMinimizationTime, 22 MinimizatonAttempts, 134 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 374.3ms SsaConstructionTime, 1561.9ms SatisfiabilityAnalysisTime, 22085.8ms InterpolantComputationTime, 1124 NumberOfCodeBlocks, 1088 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 2204 ConstructedInterpolants, 306 QuantifiedInterpolants, 9559 SizeOfPredicates, 106 NumberOfNonLiveVariables, 4858 ConjunctsInSsa, 351 ConjunctsInUnsatCore, 44 InterpolantComputations, 38 PerfectInterpolantSequences, 2984/3242 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...