./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test8.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_293c01b8-f798-457e-aa6b-0895f5daa343/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_293c01b8-f798-457e-aa6b-0895f5daa343/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_293c01b8-f798-457e-aa6b-0895f5daa343/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_293c01b8-f798-457e-aa6b-0895f5daa343/bin/uautomizer-UnR33cPsHg/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test8.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_293c01b8-f798-457e-aa6b-0895f5daa343/bin/uautomizer-UnR33cPsHg/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_293c01b8-f798-457e-aa6b-0895f5daa343/bin/uautomizer-UnR33cPsHg --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 14e73bee1ff131a549474bab511d8101c0585ce83d137ab03c9c7f9d80a198cf ................................................................................................................................... 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_293c01b8-f798-457e-aa6b-0895f5daa343/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_293c01b8-f798-457e-aa6b-0895f5daa343/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_293c01b8-f798-457e-aa6b-0895f5daa343/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_293c01b8-f798-457e-aa6b-0895f5daa343/bin/uautomizer-UnR33cPsHg/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test8.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_293c01b8-f798-457e-aa6b-0895f5daa343/bin/uautomizer-UnR33cPsHg/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_293c01b8-f798-457e-aa6b-0895f5daa343/bin/uautomizer-UnR33cPsHg --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 14e73bee1ff131a549474bab511d8101c0585ce83d137ab03c9c7f9d80a198cf ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 09:25:05,914 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:25:05,917 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:25:05,974 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:25:05,975 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:25:05,979 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:25:05,981 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:25:05,985 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:25:05,988 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:25:05,996 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:25:05,998 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:25:06,000 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:25:06,001 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:25:06,004 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:25:06,007 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:25:06,013 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:25:06,015 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:25:06,016 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:25:06,018 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:25:06,029 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:25:06,031 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:25:06,032 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:25:06,036 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:25:06,037 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:25:06,046 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:25:06,046 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:25:06,047 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:25:06,049 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:25:06,050 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:25:06,052 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:25:06,052 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:25:06,053 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:25:06,055 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:25:06,057 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:25:06,059 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:25:06,059 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:25:06,060 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:25:06,060 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:25:06,060 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:25:06,061 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:25:06,062 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:25:06,063 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_293c01b8-f798-457e-aa6b-0895f5daa343/bin/uautomizer-UnR33cPsHg/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-10-28 09:25:06,107 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:25:06,108 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:25:06,109 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:25:06,109 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:25:06,116 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:25:06,117 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:25:06,117 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:25:06,118 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:25:06,118 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 09:25:06,118 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 09:25:06,119 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:25:06,119 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 09:25:06,120 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:25:06,120 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 09:25:06,120 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 09:25:06,120 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 09:25:06,121 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 09:25:06,121 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 09:25:06,121 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 09:25:06,121 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:25:06,121 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:25:06,122 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:25:06,122 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 09:25:06,122 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:25:06,122 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:25:06,123 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 09:25:06,123 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:25:06,123 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 09:25:06,123 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:25:06,125 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_293c01b8-f798-457e-aa6b-0895f5daa343/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_293c01b8-f798-457e-aa6b-0895f5daa343/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14e73bee1ff131a549474bab511d8101c0585ce83d137ab03c9c7f9d80a198cf [2021-10-28 09:25:06,409 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:25:06,430 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:25:06,433 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:25:06,435 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:25:06,436 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:25:06,437 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_293c01b8-f798-457e-aa6b-0895f5daa343/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/ldv-memsafety/memleaks_test8.i [2021-10-28 09:25:06,518 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_293c01b8-f798-457e-aa6b-0895f5daa343/bin/uautomizer-UnR33cPsHg/data/c9dce63e0/9a2516fc4a534f6d9aa6e9a532152387/FLAG50806dd72 [2021-10-28 09:25:07,069 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:25:07,070 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_293c01b8-f798-457e-aa6b-0895f5daa343/sv-benchmarks/c/ldv-memsafety/memleaks_test8.i [2021-10-28 09:25:07,088 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_293c01b8-f798-457e-aa6b-0895f5daa343/bin/uautomizer-UnR33cPsHg/data/c9dce63e0/9a2516fc4a534f6d9aa6e9a532152387/FLAG50806dd72 [2021-10-28 09:25:07,341 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_293c01b8-f798-457e-aa6b-0895f5daa343/bin/uautomizer-UnR33cPsHg/data/c9dce63e0/9a2516fc4a534f6d9aa6e9a532152387 [2021-10-28 09:25:07,344 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:25:07,345 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 09:25:07,347 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:25:07,347 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:25:07,351 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:25:07,351 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:25:07" (1/1) ... [2021-10-28 09:25:07,353 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dff005 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:25:07, skipping insertion in model container [2021-10-28 09:25:07,353 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:25:07" (1/1) ... [2021-10-28 09:25:07,360 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:25:07,418 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:25:07,786 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:25:07,804 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-10-28 09:25:07,805 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@25cf0e0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:25:07, skipping insertion in model container [2021-10-28 09:25:07,805 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:25:07,806 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-10-28 09:25:07,808 INFO L168 Benchmark]: Toolchain (without parser) took 461.81 ms. Allocated memory is still 132.1 MB. Free memory was 94.7 MB in the beginning and 101.1 MB in the end (delta: -6.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 09:25:07,809 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 83.9 MB. Free memory was 54.9 MB in the beginning and 54.8 MB in the end (delta: 30.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:25:07,810 INFO L168 Benchmark]: CACSL2BoogieTranslator took 459.07 ms. Allocated memory is still 132.1 MB. Free memory was 94.5 MB in the beginning and 101.1 MB in the end (delta: -6.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 09:25:07,812 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 83.9 MB. Free memory was 54.9 MB in the beginning and 54.8 MB in the end (delta: 30.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 459.07 ms. Allocated memory is still 132.1 MB. Free memory was 94.5 MB in the beginning and 101.1 MB in the end (delta: -6.6 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-b2eff8b [2021-10-28 09:25:10,178 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:25:10,181 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:25:10,235 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:25:10,236 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:25:10,240 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:25:10,242 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:25:10,249 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:25:10,253 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:25:10,261 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:25:10,262 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:25:10,264 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:25:10,265 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:25:10,269 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:25:10,270 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:25:10,271 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:25:10,273 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:25:10,274 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:25:10,276 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:25:10,279 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:25:10,281 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:25:10,282 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:25:10,284 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:25:10,285 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:25:10,289 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:25:10,290 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:25:10,290 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:25:10,291 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:25:10,292 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:25:10,293 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:25:10,294 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:25:10,295 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:25:10,296 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:25:10,298 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:25:10,300 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:25:10,301 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:25:10,302 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:25:10,302 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:25:10,303 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:25:10,305 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:25:10,306 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:25:10,307 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_293c01b8-f798-457e-aa6b-0895f5daa343/bin/uautomizer-UnR33cPsHg/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-28 09:25:10,351 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:25:10,352 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:25:10,353 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:25:10,353 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:25:10,355 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:25:10,355 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:25:10,356 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:25:10,356 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:25:10,356 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 09:25:10,356 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 09:25:10,357 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:25:10,358 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 09:25:10,358 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:25:10,358 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 09:25:10,359 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 09:25:10,359 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 09:25:10,359 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 09:25:10,359 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 09:25:10,360 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-28 09:25:10,360 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-28 09:25:10,360 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 09:25:10,360 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:25:10,361 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:25:10,361 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:25:10,361 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 09:25:10,361 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:25:10,362 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:25:10,362 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 09:25:10,362 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-28 09:25:10,363 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-28 09:25:10,363 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:25:10,363 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-28 09:25:10,364 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_293c01b8-f798-457e-aa6b-0895f5daa343/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_293c01b8-f798-457e-aa6b-0895f5daa343/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14e73bee1ff131a549474bab511d8101c0585ce83d137ab03c9c7f9d80a198cf [2021-10-28 09:25:10,763 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:25:10,783 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:25:10,786 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:25:10,787 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:25:10,788 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:25:10,789 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_293c01b8-f798-457e-aa6b-0895f5daa343/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/ldv-memsafety/memleaks_test8.i [2021-10-28 09:25:10,879 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_293c01b8-f798-457e-aa6b-0895f5daa343/bin/uautomizer-UnR33cPsHg/data/9871205c3/feba1b23ffac4d76b2c739191c52d7bc/FLAG02d5fdef4 [2021-10-28 09:25:11,571 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:25:11,572 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_293c01b8-f798-457e-aa6b-0895f5daa343/sv-benchmarks/c/ldv-memsafety/memleaks_test8.i [2021-10-28 09:25:11,594 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_293c01b8-f798-457e-aa6b-0895f5daa343/bin/uautomizer-UnR33cPsHg/data/9871205c3/feba1b23ffac4d76b2c739191c52d7bc/FLAG02d5fdef4 [2021-10-28 09:25:11,784 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_293c01b8-f798-457e-aa6b-0895f5daa343/bin/uautomizer-UnR33cPsHg/data/9871205c3/feba1b23ffac4d76b2c739191c52d7bc [2021-10-28 09:25:11,786 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:25:11,788 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 09:25:11,789 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:25:11,790 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:25:11,793 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:25:11,794 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:25:11" (1/1) ... [2021-10-28 09:25:11,797 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4718e5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:25:11, skipping insertion in model container [2021-10-28 09:25:11,797 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:25:11" (1/1) ... [2021-10-28 09:25:11,805 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:25:11,873 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:25:12,250 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:25:12,269 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-28 09:25:12,277 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:25:12,324 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:25:12,332 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:25:12,382 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:25:12,433 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:25:12,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:25:12 WrapperNode [2021-10-28 09:25:12,434 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:25:12,436 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:25:12,436 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:25:12,436 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:25:12,448 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:25:12" (1/1) ... [2021-10-28 09:25:12,449 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:25:12" (1/1) ... [2021-10-28 09:25:12,491 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:25:12" (1/1) ... [2021-10-28 09:25:12,492 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:25:12" (1/1) ... [2021-10-28 09:25:12,561 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:25:12" (1/1) ... [2021-10-28 09:25:12,567 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:25:12" (1/1) ... [2021-10-28 09:25:12,587 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:25:12" (1/1) ... [2021-10-28 09:25:12,597 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:25:12,598 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:25:12,598 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:25:12,598 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:25:12,599 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:25:12" (1/1) ... [2021-10-28 09:25:12,612 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:25:12,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_293c01b8-f798-457e-aa6b-0895f5daa343/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:25:12,643 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_293c01b8-f798-457e-aa6b-0895f5daa343/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 09:25:12,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_293c01b8-f798-457e-aa6b-0895f5daa343/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 09:25:12,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-28 09:25:12,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:25:12,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-10-28 09:25:12,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-10-28 09:25:12,712 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-10-28 09:25:12,715 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-10-28 09:25:12,715 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-10-28 09:25:12,715 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-10-28 09:25:12,716 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-10-28 09:25:12,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-10-28 09:25:12,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-10-28 09:25:12,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-10-28 09:25:12,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-10-28 09:25:12,716 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-10-28 09:25:12,716 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-10-28 09:25:12,717 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-10-28 09:25:12,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-10-28 09:25:12,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-10-28 09:25:12,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-10-28 09:25:12,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-10-28 09:25:12,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-10-28 09:25:12,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-10-28 09:25:12,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-10-28 09:25:12,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-10-28 09:25:12,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-10-28 09:25:12,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-10-28 09:25:12,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-10-28 09:25:12,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-10-28 09:25:12,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-10-28 09:25:12,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-10-28 09:25:12,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-10-28 09:25:12,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-10-28 09:25:12,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-10-28 09:25:12,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-10-28 09:25:12,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-10-28 09:25:12,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-10-28 09:25:12,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-10-28 09:25:12,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-10-28 09:25:12,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-10-28 09:25:12,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-10-28 09:25:12,720 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-10-28 09:25:12,720 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-10-28 09:25:12,721 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_8 [2021-10-28 09:25:12,721 INFO L138 BoogieDeclarations]: Found implementation of procedure free_8 [2021-10-28 09:25:12,721 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-10-28 09:25:12,721 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-28 09:25:12,722 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-10-28 09:25:12,723 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-10-28 09:25:12,723 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-10-28 09:25:12,723 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-10-28 09:25:12,723 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-10-28 09:25:12,724 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-10-28 09:25:12,724 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-10-28 09:25:12,724 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-10-28 09:25:12,724 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-10-28 09:25:12,724 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-10-28 09:25:12,724 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-10-28 09:25:12,724 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-10-28 09:25:12,725 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-10-28 09:25:12,725 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-10-28 09:25:12,726 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-10-28 09:25:12,726 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-10-28 09:25:12,727 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-10-28 09:25:12,727 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-10-28 09:25:12,728 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-10-28 09:25:12,728 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-10-28 09:25:12,728 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-10-28 09:25:12,729 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-10-28 09:25:12,729 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-10-28 09:25:12,729 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-10-28 09:25:12,729 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-10-28 09:25:12,729 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-10-28 09:25:12,729 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-10-28 09:25:12,729 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-10-28 09:25:12,730 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-10-28 09:25:12,730 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-10-28 09:25:12,730 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-10-28 09:25:12,730 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-10-28 09:25:12,731 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-10-28 09:25:12,731 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-10-28 09:25:12,731 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-10-28 09:25:12,732 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-10-28 09:25:12,732 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-10-28 09:25:12,732 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-10-28 09:25:12,732 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-10-28 09:25:12,732 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-10-28 09:25:12,732 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-10-28 09:25:12,732 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-10-28 09:25:12,733 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-10-28 09:25:12,733 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-10-28 09:25:12,733 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-10-28 09:25:12,733 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-10-28 09:25:12,733 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-10-28 09:25:12,733 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-10-28 09:25:12,733 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-10-28 09:25:12,734 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-10-28 09:25:12,734 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-10-28 09:25:12,734 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-10-28 09:25:12,734 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-10-28 09:25:12,734 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-10-28 09:25:12,734 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-10-28 09:25:12,735 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-10-28 09:25:12,735 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-10-28 09:25:12,735 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-10-28 09:25:12,735 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-10-28 09:25:12,735 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-10-28 09:25:12,736 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-10-28 09:25:12,736 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-10-28 09:25:12,736 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-10-28 09:25:12,736 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-10-28 09:25:12,736 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-10-28 09:25:12,736 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-10-28 09:25:12,736 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-28 09:25:12,737 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-10-28 09:25:12,737 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-10-28 09:25:12,737 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-10-28 09:25:12,737 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-10-28 09:25:12,737 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-10-28 09:25:12,737 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-10-28 09:25:12,738 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-10-28 09:25:12,738 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-10-28 09:25:12,738 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-10-28 09:25:12,739 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-10-28 09:25:12,740 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-10-28 09:25:12,742 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-10-28 09:25:12,743 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-10-28 09:25:12,743 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-10-28 09:25:12,743 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-10-28 09:25:12,745 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-10-28 09:25:12,745 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-10-28 09:25:12,746 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-10-28 09:25:12,746 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-10-28 09:25:12,747 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-10-28 09:25:12,752 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-10-28 09:25:12,752 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-10-28 09:25:12,752 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-10-28 09:25:12,752 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-10-28 09:25:12,752 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-10-28 09:25:12,753 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-10-28 09:25:12,753 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-10-28 09:25:12,753 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-10-28 09:25:12,753 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-10-28 09:25:12,753 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-10-28 09:25:12,753 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-10-28 09:25:12,753 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-10-28 09:25:12,754 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-10-28 09:25:12,754 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-10-28 09:25:12,754 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-10-28 09:25:12,754 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-10-28 09:25:12,754 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-10-28 09:25:12,754 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-10-28 09:25:12,754 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-10-28 09:25:12,754 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-10-28 09:25:12,755 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-10-28 09:25:12,755 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-10-28 09:25:12,755 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-10-28 09:25:12,755 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-10-28 09:25:12,755 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-28 09:25:12,755 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-10-28 09:25:12,755 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-10-28 09:25:12,755 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-10-28 09:25:12,756 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-10-28 09:25:12,756 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-10-28 09:25:12,756 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-28 09:25:12,756 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-10-28 09:25:12,756 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-10-28 09:25:12,756 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-10-28 09:25:12,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-28 09:25:12,757 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-10-28 09:25:12,757 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-10-28 09:25:12,757 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-10-28 09:25:12,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-28 09:25:12,757 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-10-28 09:25:12,757 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-10-28 09:25:12,757 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-10-28 09:25:12,757 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-10-28 09:25:12,758 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-10-28 09:25:12,758 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-10-28 09:25:12,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 09:25:12,758 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-10-28 09:25:12,758 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-10-28 09:25:12,758 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-10-28 09:25:12,758 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-10-28 09:25:12,758 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-10-28 09:25:12,759 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-28 09:25:12,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-28 09:25:12,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-10-28 09:25:12,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-10-28 09:25:12,759 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-10-28 09:25:12,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-10-28 09:25:12,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-10-28 09:25:12,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-10-28 09:25:12,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-10-28 09:25:12,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-10-28 09:25:12,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-10-28 09:25:12,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-10-28 09:25:12,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-10-28 09:25:12,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-10-28 09:25:12,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-10-28 09:25:12,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-10-28 09:25:12,761 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-10-28 09:25:12,761 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-10-28 09:25:12,761 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-10-28 09:25:12,761 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_8 [2021-10-28 09:25:12,761 INFO L130 BoogieDeclarations]: Found specification of procedure free_8 [2021-10-28 09:25:12,761 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-10-28 09:25:12,761 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-28 09:25:12,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-28 09:25:12,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 09:25:12,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-28 09:25:12,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:25:12,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-10-28 09:25:12,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-10-28 09:25:12,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-10-28 09:25:12,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-10-28 09:25:12,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-10-28 09:25:13,493 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 09:25:13,841 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 09:25:14,145 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:25:14,145 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-10-28 09:25:14,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:25:14 BoogieIcfgContainer [2021-10-28 09:25:14,148 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:25:14,161 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 09:25:14,161 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 09:25:14,164 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 09:25:14,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 09:25:11" (1/3) ... [2021-10-28 09:25:14,165 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d214845 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:25:14, skipping insertion in model container [2021-10-28 09:25:14,165 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:25:12" (2/3) ... [2021-10-28 09:25:14,166 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d214845 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:25:14, skipping insertion in model container [2021-10-28 09:25:14,166 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:25:14" (3/3) ... [2021-10-28 09:25:14,167 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test8.i [2021-10-28 09:25:14,173 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 09:25:14,173 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 74 error locations. [2021-10-28 09:25:14,218 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 09:25:14,224 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 09:25:14,225 INFO L340 AbstractCegarLoop]: Starting to check reachability of 74 error locations. [2021-10-28 09:25:14,241 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 56 states have (on average 1.5) internal successors, (84), 77 states have internal predecessors, (84), 13 states have call successors, (13), 12 states have call predecessors, (13), 12 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2021-10-28 09:25:14,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-28 09:25:14,249 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:25:14,250 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:25:14,251 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting free_8Err0ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-28 09:25:14,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:25:14,256 INFO L85 PathProgramCache]: Analyzing trace with hash 12717103, now seen corresponding path program 1 times [2021-10-28 09:25:14,268 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:25:14,268 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1220248639] [2021-10-28 09:25:14,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:25:14,269 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:25:14,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_293c01b8-f798-457e-aa6b-0895f5daa343/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:25:14,290 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_293c01b8-f798-457e-aa6b-0895f5daa343/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:25:14,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_293c01b8-f798-457e-aa6b-0895f5daa343/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-28 09:25:14,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:25:14,557 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:25:14,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:25:14,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:25:14,713 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:25:14,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:25:14,838 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:25:14,839 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1220248639] [2021-10-28 09:25:14,840 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1220248639] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:25:14,841 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:25:14,842 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-28 09:25:14,847 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099517577] [2021-10-28 09:25:14,852 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 09:25:14,853 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:25:14,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 09:25:14,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:25:14,868 INFO L87 Difference]: Start difference. First operand has 103 states, 56 states have (on average 1.5) internal successors, (84), 77 states have internal predecessors, (84), 13 states have call successors, (13), 12 states have call predecessors, (13), 12 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 09:25:14,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:25:14,938 INFO L93 Difference]: Finished difference Result 32 states and 33 transitions. [2021-10-28 09:25:14,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 09:25:14,940 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 18 [2021-10-28 09:25:14,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:25:14,948 INFO L225 Difference]: With dead ends: 32 [2021-10-28 09:25:14,948 INFO L226 Difference]: Without dead ends: 29 [2021-10-28 09:25:14,950 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:25:14,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-10-28 09:25:14,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2021-10-28 09:25:14,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 17 states have internal predecessors, (19), 6 states have call successors, (6), 6 states have call predecessors, (6), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-10-28 09:25:14,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2021-10-28 09:25:14,997 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 18 [2021-10-28 09:25:14,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:25:14,998 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2021-10-28 09:25:14,998 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 09:25:14,998 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2021-10-28 09:25:14,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-28 09:25:14,999 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:25:14,999 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:25:15,018 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_293c01b8-f798-457e-aa6b-0895f5daa343/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-28 09:25:15,211 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_293c01b8-f798-457e-aa6b-0895f5daa343/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:25:15,212 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting free_8Err1ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-28 09:25:15,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:25:15,212 INFO L85 PathProgramCache]: Analyzing trace with hash 394230500, now seen corresponding path program 1 times [2021-10-28 09:25:15,213 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:25:15,213 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1228918743] [2021-10-28 09:25:15,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:25:15,214 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:25:15,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_293c01b8-f798-457e-aa6b-0895f5daa343/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:25:15,215 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_293c01b8-f798-457e-aa6b-0895f5daa343/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:25:15,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_293c01b8-f798-457e-aa6b-0895f5daa343/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-28 09:25:15,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:25:15,399 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 09:25:15,400 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:25:15,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:25:15,632 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:25:15,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:25:15,852 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:25:15,852 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1228918743] [2021-10-28 09:25:15,852 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1228918743] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:25:15,852 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:25:15,852 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 8 [2021-10-28 09:25:15,853 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913378592] [2021-10-28 09:25:15,854 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 09:25:15,854 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:25:15,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 09:25:15,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-10-28 09:25:15,856 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand has 9 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 4 states have call successors, (11), 4 states have call predecessors, (11), 6 states have return successors, (6), 6 states have call predecessors, (6), 2 states have call successors, (6) [2021-10-28 09:25:16,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:25:16,142 INFO L93 Difference]: Finished difference Result 41 states and 43 transitions. [2021-10-28 09:25:16,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 09:25:16,143 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 4 states have call successors, (11), 4 states have call predecessors, (11), 6 states have return successors, (6), 6 states have call predecessors, (6), 2 states have call successors, (6) Word has length 19 [2021-10-28 09:25:16,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:25:16,144 INFO L225 Difference]: With dead ends: 41 [2021-10-28 09:25:16,144 INFO L226 Difference]: Without dead ends: 41 [2021-10-28 09:25:16,145 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-10-28 09:25:16,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2021-10-28 09:25:16,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2021-10-28 09:25:16,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 23 states have (on average 1.173913043478261) internal successors, (27), 25 states have internal predecessors, (27), 7 states have call successors, (7), 7 states have call predecessors, (7), 8 states have return successors, (8), 7 states have call predecessors, (8), 6 states have call successors, (8) [2021-10-28 09:25:16,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 42 transitions. [2021-10-28 09:25:16,153 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 42 transitions. Word has length 19 [2021-10-28 09:25:16,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:25:16,154 INFO L470 AbstractCegarLoop]: Abstraction has 40 states and 42 transitions. [2021-10-28 09:25:16,154 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 4 states have call successors, (11), 4 states have call predecessors, (11), 6 states have return successors, (6), 6 states have call predecessors, (6), 2 states have call successors, (6) [2021-10-28 09:25:16,154 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 42 transitions. [2021-10-28 09:25:16,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-28 09:25:16,155 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:25:16,155 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:25:16,171 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_293c01b8-f798-457e-aa6b-0895f5daa343/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-28 09:25:16,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_293c01b8-f798-457e-aa6b-0895f5daa343/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:25:16,367 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting free_8Err2ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-28 09:25:16,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:25:16,368 INFO L85 PathProgramCache]: Analyzing trace with hash -663756079, now seen corresponding path program 1 times [2021-10-28 09:25:16,369 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:25:16,369 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1919866654] [2021-10-28 09:25:16,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:25:16,369 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:25:16,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_293c01b8-f798-457e-aa6b-0895f5daa343/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:25:16,370 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_293c01b8-f798-457e-aa6b-0895f5daa343/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:25:16,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_293c01b8-f798-457e-aa6b-0895f5daa343/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-28 09:25:16,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:25:16,550 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 09:25:16,552 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:25:16,609 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-28 09:25:16,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:25:16,678 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:25:16,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:25:16,839 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:25:16,839 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1919866654] [2021-10-28 09:25:16,839 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1919866654] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:25:16,839 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:25:16,839 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-28 09:25:16,840 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951920900] [2021-10-28 09:25:16,841 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 09:25:16,841 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:25:16,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 09:25:16,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:25:16,846 INFO L87 Difference]: Start difference. First operand 40 states and 42 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 09:25:16,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:25:16,912 INFO L93 Difference]: Finished difference Result 40 states and 41 transitions. [2021-10-28 09:25:16,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 09:25:16,912 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 20 [2021-10-28 09:25:16,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:25:16,915 INFO L225 Difference]: With dead ends: 40 [2021-10-28 09:25:16,915 INFO L226 Difference]: Without dead ends: 40 [2021-10-28 09:25:16,916 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 34 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:25:16,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2021-10-28 09:25:16,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2021-10-28 09:25:16,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 23 states have (on average 1.1304347826086956) internal successors, (26), 25 states have internal predecessors, (26), 7 states have call successors, (7), 7 states have call predecessors, (7), 8 states have return successors, (8), 7 states have call predecessors, (8), 6 states have call successors, (8) [2021-10-28 09:25:16,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 41 transitions. [2021-10-28 09:25:16,922 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 41 transitions. Word has length 20 [2021-10-28 09:25:16,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:25:16,923 INFO L470 AbstractCegarLoop]: Abstraction has 40 states and 41 transitions. [2021-10-28 09:25:16,923 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 09:25:16,923 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 41 transitions. [2021-10-28 09:25:16,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-28 09:25:16,924 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:25:16,924 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:25:16,944 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_293c01b8-f798-457e-aa6b-0895f5daa343/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-28 09:25:17,135 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_293c01b8-f798-457e-aa6b-0895f5daa343/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:25:17,136 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting free_8Err2ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-28 09:25:17,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:25:17,136 INFO L85 PathProgramCache]: Analyzing trace with hash 1834259858, now seen corresponding path program 1 times [2021-10-28 09:25:17,137 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:25:17,137 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [546416844] [2021-10-28 09:25:17,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:25:17,137 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:25:17,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_293c01b8-f798-457e-aa6b-0895f5daa343/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:25:17,138 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_293c01b8-f798-457e-aa6b-0895f5daa343/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:25:17,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_293c01b8-f798-457e-aa6b-0895f5daa343/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-28 09:25:17,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:25:17,329 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 09:25:17,331 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:25:17,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:25:17,458 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:25:17,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:25:17,633 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:25:17,633 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [546416844] [2021-10-28 09:25:17,633 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [546416844] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:25:17,633 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:25:17,633 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-28 09:25:17,634 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617183682] [2021-10-28 09:25:17,634 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 09:25:17,634 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:25:17,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 09:25:17,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:25:17,635 INFO L87 Difference]: Start difference. First operand 40 states and 41 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, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 09:25:17,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:25:17,691 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2021-10-28 09:25:17,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 09:25:17,691 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, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 20 [2021-10-28 09:25:17,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:25:17,692 INFO L225 Difference]: With dead ends: 37 [2021-10-28 09:25:17,692 INFO L226 Difference]: Without dead ends: 37 [2021-10-28 09:25:17,693 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:25:17,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-10-28 09:25:17,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 36. [2021-10-28 09:25:17,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 20 states have (on average 1.05) internal successors, (21), 21 states have internal predecessors, (21), 7 states have call successors, (7), 7 states have call predecessors, (7), 8 states have return successors, (8), 7 states have call predecessors, (8), 6 states have call successors, (8) [2021-10-28 09:25:17,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 36 transitions. [2021-10-28 09:25:17,698 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 36 transitions. Word has length 20 [2021-10-28 09:25:17,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:25:17,699 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 36 transitions. [2021-10-28 09:25:17,699 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, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 09:25:17,699 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 36 transitions. [2021-10-28 09:25:17,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-28 09:25:17,700 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:25:17,700 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:25:17,715 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_293c01b8-f798-457e-aa6b-0895f5daa343/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-28 09:25:17,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_293c01b8-f798-457e-aa6b-0895f5daa343/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:25:17,911 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-28 09:25:17,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:25:17,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1534178647, now seen corresponding path program 1 times [2021-10-28 09:25:17,912 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:25:17,912 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1283593329] [2021-10-28 09:25:17,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:25:17,912 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:25:17,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_293c01b8-f798-457e-aa6b-0895f5daa343/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:25:17,916 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_293c01b8-f798-457e-aa6b-0895f5daa343/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:25:17,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_293c01b8-f798-457e-aa6b-0895f5daa343/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-28 09:25:18,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:25:18,084 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-28 09:25:18,086 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:25:18,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:25:18,200 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:25:18,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:25:18,384 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:25:18,384 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1283593329] [2021-10-28 09:25:18,384 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1283593329] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:25:18,384 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:25:18,384 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-28 09:25:18,384 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123516291] [2021-10-28 09:25:18,385 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:25:18,385 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:25:18,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:25:18,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:25:18,386 INFO L87 Difference]: Start difference. First operand 36 states and 36 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-10-28 09:25:18,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:25:18,422 INFO L93 Difference]: Finished difference Result 40 states and 39 transitions. [2021-10-28 09:25:18,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:25:18,423 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 23 [2021-10-28 09:25:18,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:25:18,424 INFO L225 Difference]: With dead ends: 40 [2021-10-28 09:25:18,424 INFO L226 Difference]: Without dead ends: 27 [2021-10-28 09:25:18,424 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:25:18,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-10-28 09:25:18,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2021-10-28 09:25:18,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 15 states have (on average 1.0) internal successors, (15), 15 states have internal predecessors, (15), 6 states have call successors, (6), 6 states have call predecessors, (6), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-10-28 09:25:18,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 26 transitions. [2021-10-28 09:25:18,428 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 26 transitions. Word has length 23 [2021-10-28 09:25:18,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:25:18,428 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 26 transitions. [2021-10-28 09:25:18,428 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-10-28 09:25:18,428 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 26 transitions. [2021-10-28 09:25:18,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-28 09:25:18,429 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:25:18,429 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:25:18,443 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_293c01b8-f798-457e-aa6b-0895f5daa343/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-28 09:25:18,629 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_293c01b8-f798-457e-aa6b-0895f5daa343/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:25:18,630 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-28 09:25:18,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:25:18,630 INFO L85 PathProgramCache]: Analyzing trace with hash 714098001, now seen corresponding path program 1 times [2021-10-28 09:25:18,630 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:25:18,631 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [306864134] [2021-10-28 09:25:18,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:25:18,631 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:25:18,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_293c01b8-f798-457e-aa6b-0895f5daa343/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:25:18,632 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_293c01b8-f798-457e-aa6b-0895f5daa343/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:25:18,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_293c01b8-f798-457e-aa6b-0895f5daa343/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-28 09:25:18,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:25:18,857 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-28 09:25:18,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:25:18,879 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-10-28 09:25:18,880 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2021-10-28 09:25:19,147 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2021-10-28 09:25:23,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:25:23,370 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:25:36,333 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:25:36,333 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [306864134] [2021-10-28 09:25:36,334 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(= (store |v_old(#valid)_BEFORE_CALL_14| v_~a8~0.base_77 (_ bv0 1)) v_prenex_1)=(= (select v_prenex_1 v_antiDerIndex_entry0_1) (select (store |v_old(#valid)_BEFORE_CALL_14| v_~a8~0.base_77 (_ bv0 1)) v_antiDerIndex_entry0_1))} [2021-10-28 09:25:36,334 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [642875847] [2021-10-28 09:25:36,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:25:36,335 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-28 09:25:36,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_293c01b8-f798-457e-aa6b-0895f5daa343/bin/uautomizer-UnR33cPsHg/cvc4 [2021-10-28 09:25:36,344 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_293c01b8-f798-457e-aa6b-0895f5daa343/bin/uautomizer-UnR33cPsHg/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-28 09:25:36,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_293c01b8-f798-457e-aa6b-0895f5daa343/bin/uautomizer-UnR33cPsHg/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2021-10-28 09:25:36,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:25:36,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-28 09:25:36,755 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:25:36,781 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-10-28 09:25:36,781 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 28 [2021-10-28 09:25:37,006 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2021-10-28 09:25:39,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:25:39,146 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:25:52,010 INFO L354 Elim1Store]: treesize reduction 16, result has 78.1 percent of original size [2021-10-28 09:25:52,010 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 59 treesize of output 106 [2021-10-28 09:25:53,222 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(not (= (store |old(#valid)| ~a8~0.base (_ bv0 1)) v_prenex_3))=(not (= (select v_prenex_3 v_antiDerIndex_entry0_3) (select (store |old(#valid)| ~a8~0.base (_ bv0 1)) v_antiDerIndex_entry0_3)))} [2021-10-28 09:25:53,222 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1013746772] [2021-10-28 09:25:53,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:25:53,222 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:25:53,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_293c01b8-f798-457e-aa6b-0895f5daa343/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:25:53,233 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_293c01b8-f798-457e-aa6b-0895f5daa343/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:25:53,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_293c01b8-f798-457e-aa6b-0895f5daa343/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-28 09:25:53,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:25:53,518 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-28 09:25:53,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:25:53,619 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2021-10-28 09:25:55,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:25:55,713 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:26:11,280 INFO L354 Elim1Store]: treesize reduction 16, result has 78.1 percent of original size [2021-10-28 09:26:11,280 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 61 treesize of output 108 [2021-10-28 09:26:11,744 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(not (= (store |old(#valid)| ~a8~0.base (_ bv0 1)) v_prenex_7))=(not (= (select (store |old(#valid)| ~a8~0.base (_ bv0 1)) v_antiDerIndex_entry0_5) (select v_prenex_7 v_antiDerIndex_entry0_5)))} [2021-10-28 09:26:11,744 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:26:11,744 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-10-28 09:26:11,744 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-10-28 09:26:11,744 INFO L627 BasicCegarLoop]: Counterexample might be feasible [2021-10-28 09:26:11,751 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-10-28 09:26:11,752 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION [2021-10-28 09:26:11,753 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION [2021-10-28 09:26:11,753 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION [2021-10-28 09:26:11,753 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION [2021-10-28 09:26:11,753 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION [2021-10-28 09:26:11,753 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION [2021-10-28 09:26:11,753 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION [2021-10-28 09:26:11,754 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION [2021-10-28 09:26:11,754 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION [2021-10-28 09:26:11,754 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION [2021-10-28 09:26:11,754 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION [2021-10-28 09:26:11,754 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION [2021-10-28 09:26:11,754 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION [2021-10-28 09:26:11,755 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION [2021-10-28 09:26:11,755 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION [2021-10-28 09:26:11,755 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION [2021-10-28 09:26:11,755 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION [2021-10-28 09:26:11,755 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION [2021-10-28 09:26:11,756 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION [2021-10-28 09:26:11,756 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION [2021-10-28 09:26:11,756 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION [2021-10-28 09:26:11,756 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION [2021-10-28 09:26:11,756 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION [2021-10-28 09:26:11,756 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION [2021-10-28 09:26:11,756 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION [2021-10-28 09:26:11,756 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION [2021-10-28 09:26:11,756 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION [2021-10-28 09:26:11,756 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION [2021-10-28 09:26:11,756 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION [2021-10-28 09:26:11,757 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION [2021-10-28 09:26:11,757 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION [2021-10-28 09:26:11,757 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION [2021-10-28 09:26:11,757 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION [2021-10-28 09:26:11,757 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION [2021-10-28 09:26:11,757 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION [2021-10-28 09:26:11,757 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION [2021-10-28 09:26:11,757 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION [2021-10-28 09:26:11,757 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION [2021-10-28 09:26:11,757 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION [2021-10-28 09:26:11,757 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION [2021-10-28 09:26:11,757 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION [2021-10-28 09:26:11,758 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION [2021-10-28 09:26:11,758 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:26:11,758 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:26:11,758 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:26:11,758 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:26:11,759 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:26:11,759 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:26:11,759 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_8Err0ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:26:11,759 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_8Err1ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:26:11,759 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_8Err2ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:26:11,760 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION [2021-10-28 09:26:11,760 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION [2021-10-28 09:26:11,760 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION [2021-10-28 09:26:11,760 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION [2021-10-28 09:26:11,760 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION [2021-10-28 09:26:11,760 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION [2021-10-28 09:26:11,760 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION [2021-10-28 09:26:11,761 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION [2021-10-28 09:26:11,761 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:26:11,761 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:26:11,761 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:26:11,761 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:26:11,761 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:26:11,761 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:26:11,761 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION [2021-10-28 09:26:11,761 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION [2021-10-28 09:26:11,761 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION [2021-10-28 09:26:11,762 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION [2021-10-28 09:26:11,762 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION [2021-10-28 09:26:11,762 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION [2021-10-28 09:26:11,762 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION [2021-10-28 09:26:11,762 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION [2021-10-28 09:26:11,787 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_293c01b8-f798-457e-aa6b-0895f5daa343/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-10-28 09:26:11,971 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_293c01b8-f798-457e-aa6b-0895f5daa343/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-28 09:26:12,167 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_293c01b8-f798-457e-aa6b-0895f5daa343/bin/uautomizer-UnR33cPsHg/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2021-10-28 09:26:12,364 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_293c01b8-f798-457e-aa6b-0895f5daa343/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_293c01b8-f798-457e-aa6b-0895f5daa343/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_293c01b8-f798-457e-aa6b-0895f5daa343/bin/uautomizer-UnR33cPsHg/cvc4 --incremental --print-success --lang smt [2021-10-28 09:26:12,368 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-10-28 09:26:12,371 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 09:26:12,386 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-10-28 09:26:12,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 09:26:12 BoogieIcfgContainer [2021-10-28 09:26:12,398 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 09:26:12,399 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:26:12,399 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:26:12,399 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:26:12,400 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:25:14" (3/4) ... [2021-10-28 09:26:12,403 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 09:26:12,403 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:26:12,404 INFO L168 Benchmark]: Toolchain (without parser) took 60615.76 ms. Allocated memory was 65.0 MB in the beginning and 104.9 MB in the end (delta: 39.8 MB). Free memory was 44.5 MB in the beginning and 68.0 MB in the end (delta: -23.5 MB). Peak memory consumption was 16.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:26:12,405 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 65.0 MB. Free memory is still 45.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:26:12,405 INFO L168 Benchmark]: CACSL2BoogieTranslator took 645.40 ms. Allocated memory is still 65.0 MB. Free memory was 44.3 MB in the beginning and 29.3 MB in the end (delta: 15.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-28 09:26:12,405 INFO L168 Benchmark]: Boogie Preprocessor took 161.52 ms. Allocated memory is still 65.0 MB. Free memory was 29.3 MB in the beginning and 45.1 MB in the end (delta: -15.8 MB). Peak memory consumption was 8.8 MB. Max. memory is 16.1 GB. [2021-10-28 09:26:12,406 INFO L168 Benchmark]: RCFGBuilder took 1550.45 ms. Allocated memory was 65.0 MB in the beginning and 86.0 MB in the end (delta: 21.0 MB). Free memory was 45.1 MB in the beginning and 39.5 MB in the end (delta: 5.7 MB). Peak memory consumption was 25.5 MB. Max. memory is 16.1 GB. [2021-10-28 09:26:12,407 INFO L168 Benchmark]: TraceAbstraction took 58237.09 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 62.3 MB in the beginning and 68.0 MB in the end (delta: -5.7 MB). Peak memory consumption was 58.4 MB. Max. memory is 16.1 GB. [2021-10-28 09:26:12,407 INFO L168 Benchmark]: Witness Printer took 4.52 ms. Allocated memory is still 104.9 MB. Free memory is still 68.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:26:12,409 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 65.0 MB. Free memory is still 45.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 645.40 ms. Allocated memory is still 65.0 MB. Free memory was 44.3 MB in the beginning and 29.3 MB in the end (delta: 15.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 161.52 ms. Allocated memory is still 65.0 MB. Free memory was 29.3 MB in the beginning and 45.1 MB in the end (delta: -15.8 MB). Peak memory consumption was 8.8 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1550.45 ms. Allocated memory was 65.0 MB in the beginning and 86.0 MB in the end (delta: 21.0 MB). Free memory was 45.1 MB in the beginning and 39.5 MB in the end (delta: 5.7 MB). Peak memory consumption was 25.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 58237.09 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 62.3 MB in the beginning and 68.0 MB in the end (delta: -5.7 MB). Peak memory consumption was 58.4 MB. Max. memory is 16.1 GB. * Witness Printer took 4.52 ms. Allocated memory is still 104.9 MB. Free memory is still 68.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 769]: 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 769. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L757] int *a8; [L770] CALL entry_point() [L765] CALL alloc_8() [L759] CALL, EXPR ldv_malloc(sizeof(int)) [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L759] RET, EXPR ldv_malloc(sizeof(int)) [L759] a8 = (int *)ldv_malloc(sizeof(int)) [L765] RET alloc_8() [L766] CALL free_8() [L762] COND TRUE \read(*a8) [L762] free(a8) [L762] free(a8) [L762] free(a8) [L766] RET free_8() [L767] a8 = 0 [L770] RET entry_point() - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 762]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 762]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 762]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 49 procedures, 343 locations, 74 error locations. Started 1 CEGAR loops. OverallTime: 58.1s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 141 SDtfs, 89 SDslu, 230 SDs, 0 SdLazy, 158 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 203 GetRequests, 176 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=103occurred in iteration=0, InterpolantAutomatonStates: 26, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 19.1s InterpolantComputationTime, 126 NumberOfCodeBlocks, 126 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 215 ConstructedInterpolants, 8 QuantifiedInterpolants, 883 SizeOfPredicates, 3 NumberOfNonLiveVariables, 562 ConjunctsInSsa, 50 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-28 09:26:12,448 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_293c01b8-f798-457e-aa6b-0895f5daa343/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...