./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test10-1.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_1b847163-53b6-47d0-8dc1-6ab62d21e368/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/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_1b847163-53b6-47d0-8dc1-6ab62d21e368/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/bin/uautomizer-WNIpwEf4Nt/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test10-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/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_1b847163-53b6-47d0-8dc1-6ab62d21e368/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 405f1f88928971d68fe43dfe32aefe8e38a8cf55 ................................................................................................................................... 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_1b847163-53b6-47d0-8dc1-6ab62d21e368/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/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_1b847163-53b6-47d0-8dc1-6ab62d21e368/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/bin/uautomizer-WNIpwEf4Nt/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test10-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/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_1b847163-53b6-47d0-8dc1-6ab62d21e368/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 405f1f88928971d68fe43dfe32aefe8e38a8cf55 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 00:10:05,690 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:10:05,693 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:10:05,733 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:10:05,734 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:10:05,736 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:10:05,738 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:10:05,742 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:10:05,744 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:10:05,746 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:10:05,748 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:10:05,750 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:10:05,751 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:10:05,752 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:10:05,754 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:10:05,757 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:10:05,758 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:10:05,760 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:10:05,763 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:10:05,766 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:10:05,769 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:10:05,771 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:10:05,773 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:10:05,775 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:10:05,780 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:10:05,781 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:10:05,781 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:10:05,783 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:10:05,784 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:10:05,785 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:10:05,786 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:10:05,787 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:10:05,789 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:10:05,790 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:10:05,792 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:10:05,792 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:10:05,793 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:10:05,794 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:10:05,794 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:10:05,796 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:10:05,797 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:10:05,799 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/bin/uautomizer-WNIpwEf4Nt/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-10-13 00:10:05,834 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:10:05,835 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:10:05,835 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:10:05,836 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:10:05,837 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:10:05,838 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:10:05,838 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:10:05,839 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:10:05,839 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:10:05,840 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 00:10:05,840 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:10:05,841 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:10:05,841 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:10:05,841 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-13 00:10:05,842 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-13 00:10:05,842 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-13 00:10:05,843 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 00:10:05,843 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 00:10:05,844 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:10:05,844 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:10:05,844 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:10:05,845 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:10:05,845 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 00:10:05,846 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:10:05,846 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:10:05,847 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 00:10:05,847 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:10:05,847 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 00:10:05,848 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:10:05,848 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_1b847163-53b6-47d0-8dc1-6ab62d21e368/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 405f1f88928971d68fe43dfe32aefe8e38a8cf55 [2021-10-13 00:10:06,228 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:10:06,269 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:10:06,272 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:10:06,274 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:10:06,277 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:10:06,278 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/ldv-memsafety/memleaks_test10-1.i [2021-10-13 00:10:06,377 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/bin/uautomizer-WNIpwEf4Nt/data/80cafe88d/da9eb2dcb2a9469ea9113b1f59b5c196/FLAGaa7033161 [2021-10-13 00:10:07,146 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:10:07,147 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/sv-benchmarks/c/ldv-memsafety/memleaks_test10-1.i [2021-10-13 00:10:07,168 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/bin/uautomizer-WNIpwEf4Nt/data/80cafe88d/da9eb2dcb2a9469ea9113b1f59b5c196/FLAGaa7033161 [2021-10-13 00:10:07,403 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/bin/uautomizer-WNIpwEf4Nt/data/80cafe88d/da9eb2dcb2a9469ea9113b1f59b5c196 [2021-10-13 00:10:07,406 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:10:07,408 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-13 00:10:07,410 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:10:07,411 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:10:07,416 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:10:07,417 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:10:07" (1/1) ... [2021-10-13 00:10:07,418 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61c0fd5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:10:07, skipping insertion in model container [2021-10-13 00:10:07,419 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:10:07" (1/1) ... [2021-10-13 00:10:07,428 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:10:07,485 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:10:08,116 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:10:08,138 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 00:10:08,139 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3db1ea03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:10:08, skipping insertion in model container [2021-10-13 00:10:08,139 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:10:08,140 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-10-13 00:10:08,143 INFO L168 Benchmark]: Toolchain (without parser) took 733.43 ms. Allocated memory is still 109.1 MB. Free memory was 65.2 MB in the beginning and 79.8 MB in the end (delta: -14.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 00:10:08,144 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 109.1 MB. Free memory was 83.3 MB in the beginning and 83.2 MB in the end (delta: 61.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:10:08,145 INFO L168 Benchmark]: CACSL2BoogieTranslator took 729.75 ms. Allocated memory is still 109.1 MB. Free memory was 65.1 MB in the beginning and 79.8 MB in the end (delta: -14.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 00:10:08,147 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 109.1 MB. Free memory was 83.3 MB in the beginning and 83.2 MB in the end (delta: 61.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 729.75 ms. Allocated memory is still 109.1 MB. Free memory was 65.1 MB in the beginning and 79.8 MB in the end (delta: -14.7 MB). Peak memory consumption was 8.4 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 00:10:11,128 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:10:11,136 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:10:11,199 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:10:11,200 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:10:11,206 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:10:11,209 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:10:11,218 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:10:11,223 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:10:11,230 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:10:11,233 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:10:11,235 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:10:11,236 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:10:11,240 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:10:11,243 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:10:11,250 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:10:11,252 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:10:11,254 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:10:11,257 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:10:11,273 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:10:11,278 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:10:11,280 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:10:11,285 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:10:11,287 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:10:11,296 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:10:11,300 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:10:11,301 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:10:11,304 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:10:11,305 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:10:11,306 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:10:11,307 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:10:11,309 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:10:11,311 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:10:11,313 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:10:11,323 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:10:11,324 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:10:11,325 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:10:11,325 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:10:11,326 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:10:11,329 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:10:11,330 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:10:11,331 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/bin/uautomizer-WNIpwEf4Nt/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-13 00:10:11,396 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:10:11,396 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:10:11,397 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:10:11,398 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:10:11,401 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:10:11,401 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:10:11,401 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:10:11,402 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:10:11,402 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:10:11,403 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 00:10:11,404 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:10:11,404 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:10:11,405 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:10:11,405 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-13 00:10:11,406 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-13 00:10:11,406 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-13 00:10:11,407 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 00:10:11,407 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 00:10:11,407 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-13 00:10:11,407 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-13 00:10:11,408 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:10:11,408 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:10:11,408 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:10:11,409 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:10:11,409 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 00:10:11,409 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:10:11,410 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:10:11,411 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 00:10:11,411 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-13 00:10:11,411 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-13 00:10:11,412 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:10:11,412 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 00:10:11,412 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_1b847163-53b6-47d0-8dc1-6ab62d21e368/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 405f1f88928971d68fe43dfe32aefe8e38a8cf55 [2021-10-13 00:10:11,923 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:10:11,967 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:10:11,970 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:10:11,972 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:10:11,973 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:10:11,977 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/ldv-memsafety/memleaks_test10-1.i [2021-10-13 00:10:12,091 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/bin/uautomizer-WNIpwEf4Nt/data/8fe617ce7/2d94c15562a148d8b55d8fa4e53c166f/FLAG19e1fdfef [2021-10-13 00:10:13,042 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:10:13,043 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/sv-benchmarks/c/ldv-memsafety/memleaks_test10-1.i [2021-10-13 00:10:13,067 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/bin/uautomizer-WNIpwEf4Nt/data/8fe617ce7/2d94c15562a148d8b55d8fa4e53c166f/FLAG19e1fdfef [2021-10-13 00:10:13,188 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/bin/uautomizer-WNIpwEf4Nt/data/8fe617ce7/2d94c15562a148d8b55d8fa4e53c166f [2021-10-13 00:10:13,191 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:10:13,193 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-13 00:10:13,198 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:10:13,198 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:10:13,202 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:10:13,204 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:10:13" (1/1) ... [2021-10-13 00:10:13,205 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2622b95a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:10:13, skipping insertion in model container [2021-10-13 00:10:13,206 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:10:13" (1/1) ... [2021-10-13 00:10:13,215 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:10:13,304 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:10:13,846 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:10:13,875 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-13 00:10:13,887 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:10:13,948 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:10:13,959 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:10:14,064 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:10:14,147 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:10:14,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:10:14 WrapperNode [2021-10-13 00:10:14,147 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:10:14,149 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:10:14,149 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:10:14,149 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:10:14,164 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:10:14" (1/1) ... [2021-10-13 00:10:14,165 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:10:14" (1/1) ... [2021-10-13 00:10:14,196 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:10:14" (1/1) ... [2021-10-13 00:10:14,196 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:10:14" (1/1) ... [2021-10-13 00:10:14,248 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:10:14" (1/1) ... [2021-10-13 00:10:14,258 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:10:14" (1/1) ... [2021-10-13 00:10:14,271 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:10:14" (1/1) ... [2021-10-13 00:10:14,298 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:10:14,299 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:10:14,299 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:10:14,299 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:10:14,300 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:10:14" (1/1) ... [2021-10-13 00:10:14,323 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:10:14,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:10:14,364 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 00:10:14,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 00:10:14,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-13 00:10:14,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:10:14,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-10-13 00:10:14,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-10-13 00:10:14,430 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-10-13 00:10:14,433 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-10-13 00:10:14,434 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-10-13 00:10:14,434 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-10-13 00:10:14,434 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-10-13 00:10:14,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-10-13 00:10:14,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-10-13 00:10:14,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-10-13 00:10:14,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-10-13 00:10:14,435 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-10-13 00:10:14,435 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-10-13 00:10:14,435 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-10-13 00:10:14,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-10-13 00:10:14,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-10-13 00:10:14,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-10-13 00:10:14,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-10-13 00:10:14,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-10-13 00:10:14,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-10-13 00:10:14,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-10-13 00:10:14,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-10-13 00:10:14,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-10-13 00:10:14,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-10-13 00:10:14,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-10-13 00:10:14,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-10-13 00:10:14,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-10-13 00:10:14,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-10-13 00:10:14,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-10-13 00:10:14,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-10-13 00:10:14,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-10-13 00:10:14,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-10-13 00:10:14,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-10-13 00:10:14,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-10-13 00:10:14,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-10-13 00:10:14,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-10-13 00:10:14,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-10-13 00:10:14,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-10-13 00:10:14,441 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-10-13 00:10:14,441 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-10-13 00:10:14,441 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_10 [2021-10-13 00:10:14,441 INFO L138 BoogieDeclarations]: Found implementation of procedure free_10 [2021-10-13 00:10:14,442 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-10-13 00:10:14,442 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-13 00:10:14,444 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-10-13 00:10:14,444 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-10-13 00:10:14,444 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-10-13 00:10:14,444 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-10-13 00:10:14,445 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-10-13 00:10:14,445 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-10-13 00:10:14,445 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-10-13 00:10:14,445 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-10-13 00:10:14,445 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-10-13 00:10:14,446 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-10-13 00:10:14,446 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-10-13 00:10:14,446 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-10-13 00:10:14,447 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-10-13 00:10:14,447 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-10-13 00:10:14,448 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-10-13 00:10:14,448 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-10-13 00:10:14,450 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-10-13 00:10:14,450 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-10-13 00:10:14,450 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-10-13 00:10:14,451 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-10-13 00:10:14,451 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-10-13 00:10:14,451 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-10-13 00:10:14,451 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-10-13 00:10:14,451 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-10-13 00:10:14,452 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-10-13 00:10:14,452 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-10-13 00:10:14,453 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-10-13 00:10:14,453 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-10-13 00:10:14,453 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-10-13 00:10:14,453 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-10-13 00:10:14,454 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-10-13 00:10:14,454 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-10-13 00:10:14,454 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-10-13 00:10:14,455 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-10-13 00:10:14,455 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-10-13 00:10:14,455 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-10-13 00:10:14,456 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-10-13 00:10:14,456 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-10-13 00:10:14,456 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-10-13 00:10:14,456 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-10-13 00:10:14,457 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-10-13 00:10:14,457 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-10-13 00:10:14,457 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-10-13 00:10:14,457 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-10-13 00:10:14,457 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-10-13 00:10:14,458 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-10-13 00:10:14,458 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-10-13 00:10:14,458 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-10-13 00:10:14,458 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-10-13 00:10:14,458 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-10-13 00:10:14,459 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-10-13 00:10:14,459 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-10-13 00:10:14,459 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-10-13 00:10:14,459 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-10-13 00:10:14,460 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-10-13 00:10:14,460 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-10-13 00:10:14,460 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-10-13 00:10:14,460 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-10-13 00:10:14,461 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-10-13 00:10:14,461 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-10-13 00:10:14,461 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-10-13 00:10:14,461 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-10-13 00:10:14,461 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-10-13 00:10:14,461 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-10-13 00:10:14,462 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-10-13 00:10:14,462 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-10-13 00:10:14,462 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-13 00:10:14,462 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-10-13 00:10:14,462 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-10-13 00:10:14,463 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-10-13 00:10:14,463 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-10-13 00:10:14,463 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-10-13 00:10:14,463 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-10-13 00:10:14,464 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-10-13 00:10:14,464 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-10-13 00:10:14,464 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-10-13 00:10:14,465 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-10-13 00:10:14,466 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-10-13 00:10:14,469 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-10-13 00:10:14,469 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-10-13 00:10:14,470 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-10-13 00:10:14,470 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-10-13 00:10:14,471 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-10-13 00:10:14,471 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-10-13 00:10:14,472 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-10-13 00:10:14,472 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-10-13 00:10:14,473 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-10-13 00:10:14,479 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-10-13 00:10:14,480 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-10-13 00:10:14,480 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-10-13 00:10:14,480 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-10-13 00:10:14,480 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-10-13 00:10:14,480 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-10-13 00:10:14,481 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-10-13 00:10:14,481 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-10-13 00:10:14,481 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-10-13 00:10:14,481 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-10-13 00:10:14,481 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-10-13 00:10:14,481 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-10-13 00:10:14,482 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-10-13 00:10:14,482 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-10-13 00:10:14,482 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-10-13 00:10:14,482 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-10-13 00:10:14,482 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-10-13 00:10:14,482 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-10-13 00:10:14,483 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-10-13 00:10:14,483 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-10-13 00:10:14,483 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-10-13 00:10:14,483 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-10-13 00:10:14,483 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-10-13 00:10:14,483 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-10-13 00:10:14,484 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-13 00:10:14,484 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-10-13 00:10:14,484 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-10-13 00:10:14,484 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-10-13 00:10:14,484 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-10-13 00:10:14,485 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-10-13 00:10:14,485 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-13 00:10:14,485 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-10-13 00:10:14,485 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-10-13 00:10:14,485 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-10-13 00:10:14,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-13 00:10:14,486 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-10-13 00:10:14,486 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-10-13 00:10:14,486 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-10-13 00:10:14,486 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-13 00:10:14,486 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-10-13 00:10:14,486 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-10-13 00:10:14,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-10-13 00:10:14,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-10-13 00:10:14,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-10-13 00:10:14,501 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-10-13 00:10:14,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 00:10:14,502 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-10-13 00:10:14,502 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-10-13 00:10:14,502 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-10-13 00:10:14,502 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-10-13 00:10:14,502 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-10-13 00:10:14,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-13 00:10:14,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-13 00:10:14,503 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-10-13 00:10:14,503 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-10-13 00:10:14,503 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-10-13 00:10:14,504 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-10-13 00:10:14,504 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-10-13 00:10:14,504 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-10-13 00:10:14,504 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-10-13 00:10:14,504 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-10-13 00:10:14,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-10-13 00:10:14,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-10-13 00:10:14,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-10-13 00:10:14,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-10-13 00:10:14,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-10-13 00:10:14,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-10-13 00:10:14,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-10-13 00:10:14,506 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-10-13 00:10:14,506 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-10-13 00:10:14,506 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_10 [2021-10-13 00:10:14,506 INFO L130 BoogieDeclarations]: Found specification of procedure free_10 [2021-10-13 00:10:14,507 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-10-13 00:10:14,507 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-13 00:10:14,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-13 00:10:14,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:10:14,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-13 00:10:14,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:10:14,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-10-13 00:10:14,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-10-13 00:10:14,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-10-13 00:10:14,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-10-13 00:10:14,509 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-10-13 00:10:15,426 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 00:10:15,954 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 00:10:16,540 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:10:16,541 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-10-13 00:10:16,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:10:16 BoogieIcfgContainer [2021-10-13 00:10:16,551 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:10:16,553 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 00:10:16,553 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 00:10:16,557 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 00:10:16,557 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:10:13" (1/3) ... [2021-10-13 00:10:16,558 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@679128d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:10:16, skipping insertion in model container [2021-10-13 00:10:16,558 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:10:14" (2/3) ... [2021-10-13 00:10:16,558 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@679128d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:10:16, skipping insertion in model container [2021-10-13 00:10:16,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:10:16" (3/3) ... [2021-10-13 00:10:16,564 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test10-1.i [2021-10-13 00:10:16,572 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 00:10:16,572 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 113 error locations. [2021-10-13 00:10:16,645 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 00:10:16,656 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 00:10:16,656 INFO L340 AbstractCegarLoop]: Starting to check reachability of 113 error locations. [2021-10-13 00:10:16,688 INFO L276 IsEmpty]: Start isEmpty. Operand has 156 states, 78 states have (on average 1.7692307692307692) internal successors, (138), 129 states have internal predecessors, (138), 15 states have call successors, (15), 11 states have call predecessors, (15), 11 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2021-10-13 00:10:16,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-13 00:10:16,722 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:10:16,723 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:10:16,724 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 109 more)] === [2021-10-13 00:10:16,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:10:16,731 INFO L82 PathProgramCache]: Analyzing trace with hash 2162883, now seen corresponding path program 1 times [2021-10-13 00:10:16,746 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:10:16,746 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1490245658] [2021-10-13 00:10:16,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:10:16,748 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:10:16,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:10:16,752 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:10:16,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-13 00:10:17,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:10:17,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 00:10:17,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:10:17,212 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 00:10:17,212 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:10:17,380 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 00:10:17,381 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:10:17,382 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1490245658] [2021-10-13 00:10:17,383 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1490245658] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:10:17,384 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:10:17,385 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-13 00:10:17,390 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552173314] [2021-10-13 00:10:17,398 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 00:10:17,398 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:10:17,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 00:10:17,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:10:17,427 INFO L87 Difference]: Start difference. First operand has 156 states, 78 states have (on average 1.7692307692307692) internal successors, (138), 129 states have internal predecessors, (138), 15 states have call successors, (15), 11 states have call predecessors, (15), 11 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-13 00:10:17,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:10:17,755 INFO L93 Difference]: Finished difference Result 143 states and 160 transitions. [2021-10-13 00:10:17,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 00:10:17,759 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 16 [2021-10-13 00:10:17,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:10:17,790 INFO L225 Difference]: With dead ends: 143 [2021-10-13 00:10:17,791 INFO L226 Difference]: Without dead ends: 140 [2021-10-13 00:10:17,793 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.7ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:10:17,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2021-10-13 00:10:17,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 87. [2021-10-13 00:10:17,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 40 states have (on average 1.925) internal successors, (77), 73 states have internal predecessors, (77), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (11), 8 states have call predecessors, (11), 7 states have call successors, (11) [2021-10-13 00:10:17,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 96 transitions. [2021-10-13 00:10:17,881 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 96 transitions. Word has length 16 [2021-10-13 00:10:17,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:10:17,883 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 96 transitions. [2021-10-13 00:10:17,883 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-13 00:10:17,883 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 96 transitions. [2021-10-13 00:10:17,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-13 00:10:17,886 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:10:17,886 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:10:17,907 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-13 00:10:18,108 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:10:18,108 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 109 more)] === [2021-10-13 00:10:18,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:10:18,109 INFO L82 PathProgramCache]: Analyzing trace with hash 1744973218, now seen corresponding path program 1 times [2021-10-13 00:10:18,109 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:10:18,110 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [171383135] [2021-10-13 00:10:18,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:10:18,110 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:10:18,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:10:18,111 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:10:18,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-13 00:10:18,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:10:18,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-13 00:10:18,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:10:18,382 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 00:10:18,383 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:10:18,522 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 00:10:18,523 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:10:18,524 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [171383135] [2021-10-13 00:10:18,524 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [171383135] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:10:18,525 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:10:18,525 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-13 00:10:18,525 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65575982] [2021-10-13 00:10:18,530 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:10:18,533 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:10:18,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:10:18,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:10:18,536 INFO L87 Difference]: Start difference. First operand 87 states and 96 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-13 00:10:18,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:10:18,868 INFO L93 Difference]: Finished difference Result 148 states and 164 transitions. [2021-10-13 00:10:18,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:10:18,869 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 16 [2021-10-13 00:10:18,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:10:18,872 INFO L225 Difference]: With dead ends: 148 [2021-10-13 00:10:18,872 INFO L226 Difference]: Without dead ends: 145 [2021-10-13 00:10:18,873 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:10:18,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2021-10-13 00:10:18,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 83. [2021-10-13 00:10:18,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 37 states have (on average 1.972972972972973) internal successors, (73), 70 states have internal predecessors, (73), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-10-13 00:10:18,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 88 transitions. [2021-10-13 00:10:18,886 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 88 transitions. Word has length 16 [2021-10-13 00:10:18,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:10:18,887 INFO L470 AbstractCegarLoop]: Abstraction has 83 states and 88 transitions. [2021-10-13 00:10:18,887 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-13 00:10:18,888 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 88 transitions. [2021-10-13 00:10:18,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-13 00:10:18,888 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:10:18,889 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:10:18,911 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-13 00:10:19,102 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:10:19,103 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting entry_pointErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 109 more)] === [2021-10-13 00:10:19,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:10:19,104 INFO L82 PathProgramCache]: Analyzing trace with hash -1671219437, now seen corresponding path program 1 times [2021-10-13 00:10:19,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:10:19,105 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1650615638] [2021-10-13 00:10:19,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:10:19,105 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:10:19,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:10:19,106 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:10:19,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-13 00:10:19,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:10:19,332 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 00:10:19,335 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:10:19,412 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 00:10:19,595 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-10-13 00:10:19,596 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 19 [2021-10-13 00:10:19,623 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:10:19,623 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:10:20,001 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:10:20,002 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:10:20,002 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1650615638] [2021-10-13 00:10:20,002 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1650615638] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 00:10:20,003 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:10:20,003 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 7 [2021-10-13 00:10:20,003 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26166075] [2021-10-13 00:10:20,004 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-13 00:10:20,004 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:10:20,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-13 00:10:20,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-10-13 00:10:20,005 INFO L87 Difference]: Start difference. First operand 83 states and 88 transitions. Second operand has 8 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-13 00:10:23,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:10:23,672 INFO L93 Difference]: Finished difference Result 188 states and 207 transitions. [2021-10-13 00:10:23,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-13 00:10:23,673 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 19 [2021-10-13 00:10:23,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:10:23,676 INFO L225 Difference]: With dead ends: 188 [2021-10-13 00:10:23,676 INFO L226 Difference]: Without dead ends: 188 [2021-10-13 00:10:23,676 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 29 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 281.4ms TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2021-10-13 00:10:23,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2021-10-13 00:10:23,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 93. [2021-10-13 00:10:23,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 48 states have (on average 1.7708333333333333) internal successors, (85), 77 states have internal predecessors, (85), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (13), 9 states have call predecessors, (13), 8 states have call successors, (13) [2021-10-13 00:10:23,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 107 transitions. [2021-10-13 00:10:23,693 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 107 transitions. Word has length 19 [2021-10-13 00:10:23,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:10:23,693 INFO L470 AbstractCegarLoop]: Abstraction has 93 states and 107 transitions. [2021-10-13 00:10:23,694 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-13 00:10:23,694 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 107 transitions. [2021-10-13 00:10:23,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-13 00:10:23,695 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:10:23,695 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:10:23,721 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-13 00:10:23,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:10:23,919 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting entry_pointErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 109 more)] === [2021-10-13 00:10:23,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:10:23,920 INFO L82 PathProgramCache]: Analyzing trace with hash -1671219436, now seen corresponding path program 1 times [2021-10-13 00:10:23,920 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:10:23,920 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1174423537] [2021-10-13 00:10:23,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:10:23,921 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:10:23,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:10:23,922 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:10:23,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-13 00:10:24,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:10:24,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-13 00:10:24,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:10:24,245 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 00:10:24,257 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-13 00:10:26,690 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-10-13 00:10:26,691 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2021-10-13 00:10:26,713 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-13 00:10:26,713 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 24 [2021-10-13 00:10:26,766 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:10:26,766 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:10:42,571 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 29 [2021-10-13 00:10:42,732 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:10:42,733 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:10:42,733 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1174423537] [2021-10-13 00:10:42,733 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1174423537] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 00:10:42,733 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:10:42,733 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2021-10-13 00:10:42,734 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882363196] [2021-10-13 00:10:42,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-10-13 00:10:42,734 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:10:42,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-13 00:10:42,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=196, Unknown=6, NotChecked=0, Total=240 [2021-10-13 00:10:42,736 INFO L87 Difference]: Start difference. First operand 93 states and 107 transitions. Second operand has 16 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 12 states have internal predecessors, (20), 3 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2021-10-13 00:12:10,269 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (bvadd (_ bv4 32) c_entry_point_~a10~0.offset))) (and (forall ((|v_ldv_malloc_#res.base_28| (_ BitVec 32))) (or (and (forall ((v_ldv_malloc_~size_25 (_ BitVec 32))) (bvule (bvadd (_ bv4 32) c_entry_point_~a10~0.offset) (select (store |c_#length| |v_ldv_malloc_#res.base_28| v_ldv_malloc_~size_25) c_entry_point_~a10~0.base))) (bvule c_entry_point_~a10~0.offset (bvadd (_ bv4 32) c_entry_point_~a10~0.offset))) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (select |c_#valid| |v_ldv_malloc_#res.base_28|))))))))) (= |c_old(#valid)| |c_#valid|) (= |c_#length| |c_old(#length)|) (bvule c_entry_point_~a10~0.offset .cse0) (bvule .cse0 (select |c_#length| c_entry_point_~a10~0.base)))) is different from false [2021-10-13 00:12:48,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:12:48,251 INFO L93 Difference]: Finished difference Result 242 states and 269 transitions. [2021-10-13 00:12:48,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-13 00:12:48,253 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 12 states have internal predecessors, (20), 3 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) Word has length 19 [2021-10-13 00:12:48,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:12:48,257 INFO L225 Difference]: With dead ends: 242 [2021-10-13 00:12:48,257 INFO L226 Difference]: Without dead ends: 242 [2021-10-13 00:12:48,258 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 28988.8ms TimeCoverageRelationStatistics Valid=104, Invalid=489, Unknown=11, NotChecked=46, Total=650 [2021-10-13 00:12:48,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2021-10-13 00:12:48,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 131. [2021-10-13 00:12:48,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 83 states have (on average 1.6987951807228916) internal successors, (141), 109 states have internal predecessors, (141), 13 states have call successors, (13), 6 states have call predecessors, (13), 7 states have return successors, (22), 15 states have call predecessors, (22), 12 states have call successors, (22) [2021-10-13 00:12:48,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 176 transitions. [2021-10-13 00:12:48,279 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 176 transitions. Word has length 19 [2021-10-13 00:12:48,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:12:48,280 INFO L470 AbstractCegarLoop]: Abstraction has 131 states and 176 transitions. [2021-10-13 00:12:48,280 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 12 states have internal predecessors, (20), 3 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2021-10-13 00:12:48,281 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 176 transitions. [2021-10-13 00:12:48,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-13 00:12:48,282 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:12:48,282 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:12:48,296 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-13 00:12:48,484 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:12:48,485 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting entry_pointErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 109 more)] === [2021-10-13 00:12:48,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:12:48,486 INFO L82 PathProgramCache]: Analyzing trace with hash 826796500, now seen corresponding path program 1 times [2021-10-13 00:12:48,486 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:12:48,487 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [152431713] [2021-10-13 00:12:48,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:12:48,487 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:12:48,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:12:48,495 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:12:48,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-13 00:12:48,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:12:48,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 00:12:48,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:12:48,912 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:12:48,913 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:12:49,084 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-13 00:12:49,085 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:12:49,085 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [152431713] [2021-10-13 00:12:49,085 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [152431713] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-13 00:12:49,085 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 00:12:49,086 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2021-10-13 00:12:49,086 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027322844] [2021-10-13 00:12:49,086 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 00:12:49,087 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:12:49,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 00:12:49,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:12:49,088 INFO L87 Difference]: Start difference. First operand 131 states and 176 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-13 00:12:49,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:12:49,162 INFO L93 Difference]: Finished difference Result 99 states and 118 transitions. [2021-10-13 00:12:49,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 00:12:49,163 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 19 [2021-10-13 00:12:49,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:12:49,164 INFO L225 Difference]: With dead ends: 99 [2021-10-13 00:12:49,164 INFO L226 Difference]: Without dead ends: 95 [2021-10-13 00:12:49,165 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 48.0ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:12:49,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2021-10-13 00:12:49,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2021-10-13 00:12:49,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 57 states have (on average 1.6666666666666667) internal successors, (95), 79 states have internal predecessors, (95), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (11), 9 states have call predecessors, (11), 7 states have call successors, (11) [2021-10-13 00:12:49,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 114 transitions. [2021-10-13 00:12:49,176 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 114 transitions. Word has length 19 [2021-10-13 00:12:49,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:12:49,177 INFO L470 AbstractCegarLoop]: Abstraction has 95 states and 114 transitions. [2021-10-13 00:12:49,177 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-13 00:12:49,177 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 114 transitions. [2021-10-13 00:12:49,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-13 00:12:49,179 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:12:49,179 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] [2021-10-13 00:12:49,195 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-13 00:12:49,391 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:12:49,391 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting entry_pointErr25ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 109 more)] === [2021-10-13 00:12:49,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:12:49,392 INFO L82 PathProgramCache]: Analyzing trace with hash -1188547394, now seen corresponding path program 1 times [2021-10-13 00:12:49,392 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:12:49,392 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1419904236] [2021-10-13 00:12:49,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:12:49,393 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:12:49,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:12:49,394 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:12:49,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-13 00:12:49,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:12:49,618 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 00:12:49,620 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:12:49,720 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 16 treesize of output 12 [2021-10-13 00:12:49,758 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 16 treesize of output 8 [2021-10-13 00:12:49,782 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-13 00:12:49,783 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:12:49,896 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-13 00:12:49,896 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:12:49,897 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1419904236] [2021-10-13 00:12:49,898 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1419904236] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:12:49,899 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:12:49,899 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-10-13 00:12:49,899 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140206442] [2021-10-13 00:12:49,900 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 00:12:49,900 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:12:49,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 00:12:49,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-13 00:12:49,901 INFO L87 Difference]: Start difference. First operand 95 states and 114 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-13 00:12:50,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:12:50,113 INFO L93 Difference]: Finished difference Result 104 states and 125 transitions. [2021-10-13 00:12:50,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 00:12:50,114 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 24 [2021-10-13 00:12:50,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:12:50,116 INFO L225 Difference]: With dead ends: 104 [2021-10-13 00:12:50,116 INFO L226 Difference]: Without dead ends: 104 [2021-10-13 00:12:50,117 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 75.1ms TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-10-13 00:12:50,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2021-10-13 00:12:50,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 99. [2021-10-13 00:12:50,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 61 states have (on average 1.6229508196721312) internal successors, (99), 82 states have internal predecessors, (99), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (11), 10 states have call predecessors, (11), 7 states have call successors, (11) [2021-10-13 00:12:50,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 118 transitions. [2021-10-13 00:12:50,126 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 118 transitions. Word has length 24 [2021-10-13 00:12:50,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:12:50,127 INFO L470 AbstractCegarLoop]: Abstraction has 99 states and 118 transitions. [2021-10-13 00:12:50,127 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-13 00:12:50,127 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 118 transitions. [2021-10-13 00:12:50,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-13 00:12:50,129 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:12:50,129 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:12:50,143 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-13 00:12:50,343 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:12:50,343 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting entry_pointErr25ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 109 more)] === [2021-10-13 00:12:50,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:12:50,344 INFO L82 PathProgramCache]: Analyzing trace with hash 1298965439, now seen corresponding path program 1 times [2021-10-13 00:12:50,344 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:12:50,344 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [930981788] [2021-10-13 00:12:50,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:12:50,345 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:12:50,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:12:50,346 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:12:50,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-13 00:12:50,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:12:50,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-13 00:12:50,673 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:12:51,109 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:12:51,109 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:12:51,365 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-13 00:12:51,365 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:12:51,365 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [930981788] [2021-10-13 00:12:51,366 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [930981788] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 00:12:51,366 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:12:51,366 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4] total 9 [2021-10-13 00:12:51,366 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473322504] [2021-10-13 00:12:51,367 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-13 00:12:51,367 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:12:51,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-13 00:12:51,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-10-13 00:12:51,368 INFO L87 Difference]: Start difference. First operand 99 states and 118 transitions. Second operand has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 8 states have internal predecessors, (31), 4 states have call successors, (9), 3 states have call predecessors, (9), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2021-10-13 00:12:51,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:12:51,859 INFO L93 Difference]: Finished difference Result 98 states and 116 transitions. [2021-10-13 00:12:51,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-13 00:12:51,860 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 8 states have internal predecessors, (31), 4 states have call successors, (9), 3 states have call predecessors, (9), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) Word has length 24 [2021-10-13 00:12:51,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:12:51,862 INFO L225 Difference]: With dead ends: 98 [2021-10-13 00:12:51,862 INFO L226 Difference]: Without dead ends: 98 [2021-10-13 00:12:51,863 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 241.5ms TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-10-13 00:12:51,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2021-10-13 00:12:51,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2021-10-13 00:12:51,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 61 states have (on average 1.5901639344262295) internal successors, (97), 81 states have internal predecessors, (97), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (11), 10 states have call predecessors, (11), 7 states have call successors, (11) [2021-10-13 00:12:51,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 116 transitions. [2021-10-13 00:12:51,870 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 116 transitions. Word has length 24 [2021-10-13 00:12:51,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:12:51,871 INFO L470 AbstractCegarLoop]: Abstraction has 98 states and 116 transitions. [2021-10-13 00:12:51,872 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 8 states have internal predecessors, (31), 4 states have call successors, (9), 3 states have call predecessors, (9), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2021-10-13 00:12:51,872 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 116 transitions. [2021-10-13 00:12:51,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-13 00:12:51,873 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:12:51,874 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:12:51,901 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-13 00:12:52,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:12:52,087 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting entry_pointErr6REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 109 more)] === [2021-10-13 00:12:52,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:12:52,088 INFO L82 PathProgramCache]: Analyzing trace with hash 88403612, now seen corresponding path program 1 times [2021-10-13 00:12:52,088 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:12:52,088 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [246236481] [2021-10-13 00:12:52,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:12:52,089 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:12:52,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:12:52,090 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:12:52,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-13 00:12:52,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:12:52,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-13 00:12:52,368 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:12:52,415 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 00:12:52,452 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 19 treesize of output 15 [2021-10-13 00:12:52,504 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 19 treesize of output 11 [2021-10-13 00:12:52,642 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-10-13 00:12:52,642 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 19 [2021-10-13 00:12:52,672 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-13 00:12:52,672 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:12:53,061 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-13 00:12:53,062 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:12:53,062 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [246236481] [2021-10-13 00:12:53,062 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [246236481] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 00:12:53,062 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:12:53,062 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 8 [2021-10-13 00:12:53,063 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379875940] [2021-10-13 00:12:53,063 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-13 00:12:53,063 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:12:53,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-13 00:12:53,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-10-13 00:12:53,064 INFO L87 Difference]: Start difference. First operand 98 states and 116 transitions. Second operand has 9 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 2 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2021-10-13 00:12:54,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:12:54,765 INFO L93 Difference]: Finished difference Result 141 states and 162 transitions. [2021-10-13 00:12:54,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-13 00:12:54,765 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 2 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 29 [2021-10-13 00:12:54,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:12:54,768 INFO L225 Difference]: With dead ends: 141 [2021-10-13 00:12:54,768 INFO L226 Difference]: Without dead ends: 141 [2021-10-13 00:12:54,769 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 47 SyntacticMatches, 4 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 520.8ms TimeCoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2021-10-13 00:12:54,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2021-10-13 00:12:54,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 101. [2021-10-13 00:12:54,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 63 states have (on average 1.5873015873015872) internal successors, (100), 83 states have internal predecessors, (100), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (13), 11 states have call predecessors, (13), 8 states have call successors, (13) [2021-10-13 00:12:54,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 122 transitions. [2021-10-13 00:12:54,778 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 122 transitions. Word has length 29 [2021-10-13 00:12:54,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:12:54,778 INFO L470 AbstractCegarLoop]: Abstraction has 101 states and 122 transitions. [2021-10-13 00:12:54,779 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 2 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2021-10-13 00:12:54,779 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 122 transitions. [2021-10-13 00:12:54,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-13 00:12:54,781 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:12:54,781 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:12:54,801 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-13 00:12:54,995 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:12:54,995 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting entry_pointErr7REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 109 more)] === [2021-10-13 00:12:54,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:12:54,996 INFO L82 PathProgramCache]: Analyzing trace with hash 88403613, now seen corresponding path program 1 times [2021-10-13 00:12:54,996 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:12:54,996 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [362470396] [2021-10-13 00:12:54,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:12:54,997 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:12:54,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:12:54,998 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:12:55,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-13 00:12:55,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:12:55,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-13 00:12:55,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:12:55,378 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 00:12:55,388 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 00:12:55,511 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 11 treesize of output 7 [2021-10-13 00:12:55,522 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 26 treesize of output 22 [2021-10-13 00:12:55,658 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 45 treesize of output 33 [2021-10-13 00:12:55,664 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 30 treesize of output 22 [2021-10-13 00:12:57,981 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-10-13 00:12:57,982 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 35 [2021-10-13 00:12:57,998 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-13 00:12:57,998 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2021-10-13 00:12:58,046 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 00:12:58,046 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:13:05,046 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_entry_point_#t~mem47.base_BEFORE_CALL_4| (_ BitVec 32)) (|v_ldv_malloc_#res.base_69| (_ BitVec 32)) (|v_entry_point_#t~mem47.offset_BEFORE_CALL_2| (_ BitVec 32))) (or (exists ((|v_ldv_malloc_#res.base_68| (_ BitVec 32))) (and (or (not (bvule |v_entry_point_#t~mem47.offset_BEFORE_CALL_2| (bvadd (_ bv4 32) |v_entry_point_#t~mem47.offset_BEFORE_CALL_2|))) (exists ((v_ldv_malloc_~size_61 (_ BitVec 32))) (not (bvule (bvadd (_ bv4 32) |v_entry_point_#t~mem47.offset_BEFORE_CALL_2|) (select (store |c_old(#length)| |v_ldv_malloc_#res.base_68| v_ldv_malloc_~size_61) |v_entry_point_#t~mem47.base_BEFORE_CALL_4|))))) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_old(#valid)| |v_ldv_malloc_#res.base_68|))))))))) (and (forall ((ldv_malloc_~size (_ BitVec 32))) (bvule (bvadd (_ bv4 32) |v_entry_point_#t~mem47.offset_BEFORE_CALL_2|) (select (store |c_#length| |v_ldv_malloc_#res.base_69| ldv_malloc_~size) |v_entry_point_#t~mem47.base_BEFORE_CALL_4|))) (bvule |v_entry_point_#t~mem47.offset_BEFORE_CALL_2| (bvadd (_ bv4 32) |v_entry_point_#t~mem47.offset_BEFORE_CALL_2|))) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_#valid| |v_ldv_malloc_#res.base_69|)))))))) is different from true [2021-10-13 00:13:09,435 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 29 [2021-10-13 00:13:09,620 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 1 not checked. [2021-10-13 00:13:09,620 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:13:09,620 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [362470396] [2021-10-13 00:13:09,620 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [362470396] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 00:13:09,620 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:13:09,621 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2021-10-13 00:13:09,621 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984391083] [2021-10-13 00:13:09,621 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-10-13 00:13:09,621 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:13:09,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-13 00:13:09,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=4, NotChecked=30, Total=306 [2021-10-13 00:13:09,622 INFO L87 Difference]: Start difference. First operand 101 states and 122 transitions. Second operand has 18 states, 15 states have (on average 2.066666666666667) internal successors, (31), 14 states have internal predecessors, (31), 3 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2021-10-13 00:14:11,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:14:11,360 INFO L93 Difference]: Finished difference Result 142 states and 162 transitions. [2021-10-13 00:14:11,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-13 00:14:11,361 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 15 states have (on average 2.066666666666667) internal successors, (31), 14 states have internal predecessors, (31), 3 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) Word has length 29 [2021-10-13 00:14:11,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:14:11,362 INFO L225 Difference]: With dead ends: 142 [2021-10-13 00:14:11,362 INFO L226 Difference]: Without dead ends: 142 [2021-10-13 00:14:11,363 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 18626.4ms TimeCoverageRelationStatistics Valid=87, Invalid=465, Unknown=4, NotChecked=44, Total=600 [2021-10-13 00:14:11,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2021-10-13 00:14:11,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 101. [2021-10-13 00:14:11,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 63 states have (on average 1.5714285714285714) internal successors, (99), 83 states have internal predecessors, (99), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (13), 11 states have call predecessors, (13), 8 states have call successors, (13) [2021-10-13 00:14:11,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 121 transitions. [2021-10-13 00:14:11,371 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 121 transitions. Word has length 29 [2021-10-13 00:14:11,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:14:11,371 INFO L470 AbstractCegarLoop]: Abstraction has 101 states and 121 transitions. [2021-10-13 00:14:11,372 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 15 states have (on average 2.066666666666667) internal successors, (31), 14 states have internal predecessors, (31), 3 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2021-10-13 00:14:11,372 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 121 transitions. [2021-10-13 00:14:11,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-13 00:14:11,374 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:14:11,374 INFO L512 BasicCegarLoop]: trace histogram [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] [2021-10-13 00:14:11,386 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-13 00:14:11,583 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:14:11,583 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 109 more)] === [2021-10-13 00:14:11,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:11,583 INFO L82 PathProgramCache]: Analyzing trace with hash -1144478410, now seen corresponding path program 1 times [2021-10-13 00:14:11,584 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:14:11,584 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1119826438] [2021-10-13 00:14:11,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:14:11,584 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:14:11,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:14:11,585 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:14:11,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-13 00:14:11,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:14:11,899 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-13 00:14:11,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:14:11,952 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-10-13 00:14:11,953 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2021-10-13 00:14:16,558 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-13 00:14:16,558 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:14:29,721 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:14:29,722 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1119826438] [2021-10-13 00:14:29,722 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(= (store |v_old(#valid)_BEFORE_CALL_9| v_entry_point_~a10~0.base_42 (_ bv0 1)) v_prenex_1)=(= (select v_prenex_1 v_antiDerIndex_entry0_1) (select (store |v_old(#valid)_BEFORE_CALL_9| v_entry_point_~a10~0.base_42 (_ bv0 1)) v_antiDerIndex_entry0_1))} [2021-10-13 00:14:29,722 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1277580626] [2021-10-13 00:14:29,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:14:29,723 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 00:14:29,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/bin/uautomizer-WNIpwEf4Nt/cvc4 [2021-10-13 00:14:29,725 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/bin/uautomizer-WNIpwEf4Nt/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 00:14:29,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/bin/uautomizer-WNIpwEf4Nt/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2021-10-13 00:14:30,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:14:30,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-13 00:14:30,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:14:30,282 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-10-13 00:14:30,283 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 27 [2021-10-13 00:14:32,856 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-13 00:14:32,856 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:14:43,267 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_13| (Array (_ BitVec 32) (_ BitVec 1)))) (or (exists ((v_entry_point_~a10~0.base_42 (_ BitVec 32))) (and (not (= |v_old(#valid)_BEFORE_CALL_13| (store |c_old(#valid)| v_entry_point_~a10~0.base_42 (_ bv0 1)))) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (select |c_old(#valid)| v_entry_point_~a10~0.base_42)))))))) (= |v_old(#valid)_BEFORE_CALL_13| (store |c_#valid| c_entry_point_~a10~0.base (_ bv0 1))))) is different from false [2021-10-13 00:14:43,616 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(= (store |v_old(#valid)_BEFORE_CALL_14| v_entry_point_~a10~0.base_42 (_ bv0 1)) v_prenex_5)=(= (select (store |v_old(#valid)_BEFORE_CALL_14| v_entry_point_~a10~0.base_42 (_ bv0 1)) v_antiDerIndex_entry0_2) (select v_prenex_5 v_antiDerIndex_entry0_2))} [2021-10-13 00:14:43,616 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [700901366] [2021-10-13 00:14:43,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:14:43,617 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:14:43,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:43,618 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:14:43,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-10-13 00:14:43,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:14:43,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-13 00:14:43,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:14:44,216 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-13 00:14:44,217 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:14:48,471 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_18| (Array (_ BitVec 32) (_ BitVec 1)))) (or (exists ((v_entry_point_~a10~0.base_42 (_ BitVec 32))) (and (not (= |v_old(#valid)_BEFORE_CALL_18| (store |c_old(#valid)| v_entry_point_~a10~0.base_42 (_ bv0 1)))) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (select |c_old(#valid)| v_entry_point_~a10~0.base_42)))))))) (= |v_old(#valid)_BEFORE_CALL_18| |c_#valid|))) is different from false [2021-10-13 00:14:48,561 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_18| (Array (_ BitVec 32) (_ BitVec 1)))) (or (exists ((v_entry_point_~a10~0.base_42 (_ BitVec 32))) (and (not (= |v_old(#valid)_BEFORE_CALL_18| (store |c_old(#valid)| v_entry_point_~a10~0.base_42 (_ bv0 1)))) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (select |c_old(#valid)| v_entry_point_~a10~0.base_42)))))))) (= |v_old(#valid)_BEFORE_CALL_18| (store |c_#valid| c_entry_point_~a10~0.base (_ bv0 1))))) is different from false [2021-10-13 00:14:49,144 INFO L354 Elim1Store]: treesize reduction 15, result has 79.5 percent of original size [2021-10-13 00:14:49,144 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 66 treesize of output 114 [2021-10-13 00:14:50,512 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-10-13 00:14:50,710 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 00:14:50,711 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 65 treesize of output 105 [2021-10-13 00:14:51,809 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: No corresponding IProgramVar for v_prenex_7 [2021-10-13 00:14:51,810 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:14:51,810 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-10-13 00:14:51,810 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-10-13 00:14:51,810 INFO L626 BasicCegarLoop]: Counterexample might be feasible [2021-10-13 00:14:51,818 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-10-13 00:14:51,820 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION [2021-10-13 00:14:51,820 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION [2021-10-13 00:14:51,821 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION [2021-10-13 00:14:51,821 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION [2021-10-13 00:14:51,821 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION [2021-10-13 00:14:51,821 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION [2021-10-13 00:14:51,822 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION [2021-10-13 00:14:51,822 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION [2021-10-13 00:14:51,822 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION [2021-10-13 00:14:51,822 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION [2021-10-13 00:14:51,822 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION [2021-10-13 00:14:51,823 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION [2021-10-13 00:14:51,823 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION [2021-10-13 00:14:51,823 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION [2021-10-13 00:14:51,823 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION [2021-10-13 00:14:51,823 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION [2021-10-13 00:14:51,824 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION [2021-10-13 00:14:51,824 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION [2021-10-13 00:14:51,824 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION [2021-10-13 00:14:51,824 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION [2021-10-13 00:14:51,824 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION [2021-10-13 00:14:51,825 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION [2021-10-13 00:14:51,825 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION [2021-10-13 00:14:51,825 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION [2021-10-13 00:14:51,825 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION [2021-10-13 00:14:51,826 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION [2021-10-13 00:14:51,826 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION [2021-10-13 00:14:51,826 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION [2021-10-13 00:14:51,826 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION [2021-10-13 00:14:51,826 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION [2021-10-13 00:14:51,827 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION [2021-10-13 00:14:51,827 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION [2021-10-13 00:14:51,827 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location alloc_10Err0REQUIRES_VIOLATION [2021-10-13 00:14:51,827 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location alloc_10Err1REQUIRES_VIOLATION [2021-10-13 00:14:51,827 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location alloc_10Err2REQUIRES_VIOLATION [2021-10-13 00:14:51,828 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location alloc_10Err3REQUIRES_VIOLATION [2021-10-13 00:14:51,828 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location alloc_10Err4REQUIRES_VIOLATION [2021-10-13 00:14:51,828 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location alloc_10Err5REQUIRES_VIOLATION [2021-10-13 00:14:51,828 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION [2021-10-13 00:14:51,828 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION [2021-10-13 00:14:51,829 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION [2021-10-13 00:14:51,829 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION [2021-10-13 00:14:51,829 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION [2021-10-13 00:14:51,829 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION [2021-10-13 00:14:51,830 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION [2021-10-13 00:14:51,830 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION [2021-10-13 00:14:51,830 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION [2021-10-13 00:14:51,830 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION [2021-10-13 00:14:51,830 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:14:51,831 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:14:51,831 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:14:51,831 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:14:51,831 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:14:51,832 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:14:51,832 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION [2021-10-13 00:14:51,832 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION [2021-10-13 00:14:51,832 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION [2021-10-13 00:14:51,832 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION [2021-10-13 00:14:51,833 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION [2021-10-13 00:14:51,833 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION [2021-10-13 00:14:51,833 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION [2021-10-13 00:14:51,833 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION [2021-10-13 00:14:51,833 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:14:51,834 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:14:51,834 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:14:51,834 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:14:51,834 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:14:51,834 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:14:51,835 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION [2021-10-13 00:14:51,835 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION [2021-10-13 00:14:51,835 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION [2021-10-13 00:14:51,835 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION [2021-10-13 00:14:51,835 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION [2021-10-13 00:14:51,836 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION [2021-10-13 00:14:51,836 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_10Err0REQUIRES_VIOLATION [2021-10-13 00:14:51,836 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_10Err1REQUIRES_VIOLATION [2021-10-13 00:14:51,836 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_10Err2REQUIRES_VIOLATION [2021-10-13 00:14:51,836 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_10Err3REQUIRES_VIOLATION [2021-10-13 00:14:51,837 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_10Err4REQUIRES_VIOLATION [2021-10-13 00:14:51,837 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_10Err5REQUIRES_VIOLATION [2021-10-13 00:14:51,837 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_10Err6ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:14:51,837 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_10Err7ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:14:51,838 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_10Err8ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:14:51,838 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION [2021-10-13 00:14:51,838 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION [2021-10-13 00:14:51,838 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr0REQUIRES_VIOLATION [2021-10-13 00:14:51,838 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr1REQUIRES_VIOLATION [2021-10-13 00:14:51,839 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr2REQUIRES_VIOLATION [2021-10-13 00:14:51,839 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr3REQUIRES_VIOLATION [2021-10-13 00:14:51,839 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr4REQUIRES_VIOLATION [2021-10-13 00:14:51,839 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr5REQUIRES_VIOLATION [2021-10-13 00:14:51,839 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr6REQUIRES_VIOLATION [2021-10-13 00:14:51,840 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr7REQUIRES_VIOLATION [2021-10-13 00:14:51,840 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr8REQUIRES_VIOLATION [2021-10-13 00:14:51,840 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr9REQUIRES_VIOLATION [2021-10-13 00:14:51,840 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr10REQUIRES_VIOLATION [2021-10-13 00:14:51,841 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr11REQUIRES_VIOLATION [2021-10-13 00:14:51,841 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr12REQUIRES_VIOLATION [2021-10-13 00:14:51,841 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr13REQUIRES_VIOLATION [2021-10-13 00:14:51,841 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr14REQUIRES_VIOLATION [2021-10-13 00:14:51,841 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr15REQUIRES_VIOLATION [2021-10-13 00:14:51,842 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr16ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:14:51,842 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr17ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:14:51,842 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr18ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:14:51,842 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr19REQUIRES_VIOLATION [2021-10-13 00:14:51,843 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr20REQUIRES_VIOLATION [2021-10-13 00:14:51,843 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr21ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:14:51,843 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr22ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:14:51,843 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr23ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:14:51,843 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr24ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:14:51,844 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr25ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:14:51,844 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr26ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:14:51,853 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/bin/uautomizer-WNIpwEf4Nt/cvc4 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0 [2021-10-13 00:14:52,064 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-13 00:14:52,299 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-10-13 00:14:52,457 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/bin/uautomizer-WNIpwEf4Nt/cvc4 --incremental --print-success --lang smt,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:14:52,463 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 00:14:52,466 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-10-13 00:14:52,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 12:14:52 BoogieIcfgContainer [2021-10-13 00:14:52,477 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 00:14:52,480 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:14:52,480 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:14:52,480 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:14:52,481 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:10:16" (3/4) ... [2021-10-13 00:14:52,485 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-13 00:14:52,486 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:14:52,487 INFO L168 Benchmark]: Toolchain (without parser) took 279293.45 ms. Allocated memory was 60.8 MB in the beginning and 96.5 MB in the end (delta: 35.7 MB). Free memory was 37.1 MB in the beginning and 39.9 MB in the end (delta: -2.9 MB). Peak memory consumption was 33.8 MB. Max. memory is 16.1 GB. [2021-10-13 00:14:52,488 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 60.8 MB. Free memory is still 41.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:14:52,488 INFO L168 Benchmark]: CACSL2BoogieTranslator took 950.44 ms. Allocated memory is still 60.8 MB. Free memory was 36.9 MB in the beginning and 40.1 MB in the end (delta: -3.2 MB). Peak memory consumption was 16.6 MB. Max. memory is 16.1 GB. [2021-10-13 00:14:52,488 INFO L168 Benchmark]: Boogie Preprocessor took 149.29 ms. Allocated memory is still 60.8 MB. Free memory was 40.1 MB in the beginning and 35.1 MB in the end (delta: 4.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-13 00:14:52,489 INFO L168 Benchmark]: RCFGBuilder took 2252.08 ms. Allocated memory was 60.8 MB in the beginning and 79.7 MB in the end (delta: 18.9 MB). Free memory was 34.9 MB in the beginning and 35.9 MB in the end (delta: -975.5 kB). Peak memory consumption was 19.6 MB. Max. memory is 16.1 GB. [2021-10-13 00:14:52,489 INFO L168 Benchmark]: TraceAbstraction took 275923.84 ms. Allocated memory was 79.7 MB in the beginning and 96.5 MB in the end (delta: 16.8 MB). Free memory was 35.4 MB in the beginning and 40.7 MB in the end (delta: -5.3 MB). Peak memory consumption was 33.2 MB. Max. memory is 16.1 GB. [2021-10-13 00:14:52,490 INFO L168 Benchmark]: Witness Printer took 6.12 ms. Allocated memory is still 96.5 MB. Free memory was 40.7 MB in the beginning and 39.9 MB in the end (delta: 814.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:14:52,497 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 ms. Allocated memory is still 60.8 MB. Free memory is still 41.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 950.44 ms. Allocated memory is still 60.8 MB. Free memory was 36.9 MB in the beginning and 40.1 MB in the end (delta: -3.2 MB). Peak memory consumption was 16.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 149.29 ms. Allocated memory is still 60.8 MB. Free memory was 40.1 MB in the beginning and 35.1 MB in the end (delta: 4.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2252.08 ms. Allocated memory was 60.8 MB in the beginning and 79.7 MB in the end (delta: 18.9 MB). Free memory was 34.9 MB in the beginning and 35.9 MB in the end (delta: -975.5 kB). Peak memory consumption was 19.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 275923.84 ms. Allocated memory was 79.7 MB in the beginning and 96.5 MB in the end (delta: 16.8 MB). Free memory was 35.4 MB in the beginning and 40.7 MB in the end (delta: -5.3 MB). Peak memory consumption was 33.2 MB. Max. memory is 16.1 GB. * Witness Printer took 6.12 ms. Allocated memory is still 96.5 MB. Free memory was 40.7 MB in the beginning and 39.9 MB in the end (delta: 814.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms 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: 786]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: unable to decide satisfiability of path constraint, overapproximation of memtrack at line 786. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L787] CALL entry_point() [L773] CALL, EXPR ldv_malloc(sizeof(struct A10)) [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L773] RET, EXPR ldv_malloc(sizeof(struct A10)) [L773] struct A10 *a10 = (struct A10 *)ldv_malloc(sizeof(struct A10)); [L774] COND FALSE !(!a10) [L775] CALL, EXPR ldv_malloc(sizeof(struct B10)) [L526] COND FALSE !(__VERIFIER_nondet_int()) [L529] return 0; [L775] RET, EXPR ldv_malloc(sizeof(struct B10)) [L775] a10->b = (struct B10 *)ldv_malloc(sizeof(struct B10)) [L776] EXPR a10->b [L776] COND TRUE !a10->b [L784] free(a10) [L784] free(a10) [L784] free(a10) [L787] RET entry_point() - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 767]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 767]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 767]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 767]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 767]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 767]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 770]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 770]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 770]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 770]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 770]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 770]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 770]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 770]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 770]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 775]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 775]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 776]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 776]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 777]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 777]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 777]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 777]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 778]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 778]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 778]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 778]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 780]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 780]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 780]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 780]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 780]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 780]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 780]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 782]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 782]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 782]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 782]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 782]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 784]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 784]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 784]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 49 procedures, 414 locations, 113 error locations. Started 1 CEGAR loops. OverallTime: 275818.8ms, OverallIterations: 10, TraceHistogramMax: 3, EmptinessCheckTime: 55.6ms, AutomataDifference: 194165.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 23.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 724 SDtfs, 1022 SDslu, 2459 SDs, 0 SdLazy, 3019 SolverSat, 265 SolverUnsat, 75 SolverUnknown, 0 SolverNotchecked, 166790.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 420 GetRequests, 314 SyntacticMatches, 10 SemanticMatches, 96 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 48806.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=156occurred in iteration=0, InterpolantAutomatonStates: 84, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 164.1ms AutomataMinimizationTime, 9 MinimizatonAttempts, 407 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 124.4ms SsaConstructionTime, 350.9ms SatisfiabilityAnalysisTime, 36120.8ms InterpolantComputationTime, 195 NumberOfCodeBlocks, 195 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 372 ConstructedInterpolants, 41 QuantifiedInterpolants, 2335 SizeOfPredicates, 28 NumberOfNonLiveVariables, 889 ConjunctsInSsa, 77 ConjunctsInUnsatCore, 18 InterpolantComputations, 7 PerfectInterpolantSequences, 62/88 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-13 00:14:52,591 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b847163-53b6-47d0-8dc1-6ab62d21e368/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...