./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test21-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eea19a9-ed02-4c73-8a87-f5627292c864/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eea19a9-ed02-4c73-8a87-f5627292c864/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_2eea19a9-ed02-4c73-8a87-f5627292c864/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eea19a9-ed02-4c73-8a87-f5627292c864/bin/uautomizer-UnR33cPsHg/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test21-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eea19a9-ed02-4c73-8a87-f5627292c864/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_2eea19a9-ed02-4c73-8a87-f5627292c864/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 8cad73f64954eeb86e2707e579f8aca932182fe823da421e8ece02d4d63f0cc3 ................................................................................................................................... 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_2eea19a9-ed02-4c73-8a87-f5627292c864/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eea19a9-ed02-4c73-8a87-f5627292c864/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_2eea19a9-ed02-4c73-8a87-f5627292c864/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eea19a9-ed02-4c73-8a87-f5627292c864/bin/uautomizer-UnR33cPsHg/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test21-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eea19a9-ed02-4c73-8a87-f5627292c864/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_2eea19a9-ed02-4c73-8a87-f5627292c864/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 8cad73f64954eeb86e2707e579f8aca932182fe823da421e8ece02d4d63f0cc3 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 09:00:57,701 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:00:57,703 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:00:57,756 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:00:57,756 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:00:57,760 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:00:57,762 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:00:57,766 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:00:57,769 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:00:57,774 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:00:57,775 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:00:57,777 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:00:57,777 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:00:57,780 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:00:57,782 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:00:57,786 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:00:57,787 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:00:57,788 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:00:57,791 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:00:57,800 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:00:57,802 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:00:57,803 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:00:57,807 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:00:57,808 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:00:57,816 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:00:57,817 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:00:57,817 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:00:57,819 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:00:57,820 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:00:57,821 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:00:57,822 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:00:57,823 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:00:57,824 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:00:57,826 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:00:57,827 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:00:57,827 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:00:57,828 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:00:57,828 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:00:57,829 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:00:57,829 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:00:57,830 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:00:57,831 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eea19a9-ed02-4c73-8a87-f5627292c864/bin/uautomizer-UnR33cPsHg/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-10-28 09:00:57,874 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:00:57,874 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:00:57,875 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:00:57,875 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:00:57,876 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:00:57,877 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:00:57,877 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:00:57,877 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:00:57,877 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 09:00:57,878 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 09:00:57,879 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:00:57,879 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 09:00:57,879 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:00:57,879 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 09:00:57,879 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 09:00:57,880 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 09:00:57,880 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 09:00:57,880 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 09:00:57,880 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 09:00:57,880 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:00:57,881 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:00:57,881 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:00:57,881 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 09:00:57,881 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:00:57,882 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:00:57,882 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 09:00:57,882 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:00:57,882 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 09:00:57,882 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:00:57,884 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_2eea19a9-ed02-4c73-8a87-f5627292c864/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eea19a9-ed02-4c73-8a87-f5627292c864/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8cad73f64954eeb86e2707e579f8aca932182fe823da421e8ece02d4d63f0cc3 [2021-10-28 09:00:58,173 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:00:58,209 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:00:58,211 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:00:58,213 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:00:58,214 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:00:58,215 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eea19a9-ed02-4c73-8a87-f5627292c864/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/ldv-memsafety/memleaks_test21-2.i [2021-10-28 09:00:58,305 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eea19a9-ed02-4c73-8a87-f5627292c864/bin/uautomizer-UnR33cPsHg/data/15e30251f/ba4395821a094c92b97435661195fe70/FLAG1935e3756 [2021-10-28 09:00:58,879 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:00:58,880 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eea19a9-ed02-4c73-8a87-f5627292c864/sv-benchmarks/c/ldv-memsafety/memleaks_test21-2.i [2021-10-28 09:00:58,895 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eea19a9-ed02-4c73-8a87-f5627292c864/bin/uautomizer-UnR33cPsHg/data/15e30251f/ba4395821a094c92b97435661195fe70/FLAG1935e3756 [2021-10-28 09:00:59,168 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eea19a9-ed02-4c73-8a87-f5627292c864/bin/uautomizer-UnR33cPsHg/data/15e30251f/ba4395821a094c92b97435661195fe70 [2021-10-28 09:00:59,171 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:00:59,172 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 09:00:59,176 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:00:59,176 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:00:59,180 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:00:59,181 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:00:59" (1/1) ... [2021-10-28 09:00:59,184 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d81edc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:00:59, skipping insertion in model container [2021-10-28 09:00:59,184 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:00:59" (1/1) ... [2021-10-28 09:00:59,191 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:00:59,255 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:00:59,720 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:00:59,740 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 09:00:59,741 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@70fffa64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:00:59, skipping insertion in model container [2021-10-28 09:00:59,741 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:00:59,741 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-10-28 09:00:59,744 INFO L168 Benchmark]: Toolchain (without parser) took 570.37 ms. Allocated memory was 98.6 MB in the beginning and 127.9 MB in the end (delta: 29.4 MB). Free memory was 62.6 MB in the beginning and 98.6 MB in the end (delta: -35.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 09:00:59,745 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 98.6 MB. Free memory was 71.7 MB in the beginning and 71.6 MB in the end (delta: 27.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:00:59,747 INFO L168 Benchmark]: CACSL2BoogieTranslator took 565.00 ms. Allocated memory was 98.6 MB in the beginning and 127.9 MB in the end (delta: 29.4 MB). Free memory was 62.4 MB in the beginning and 98.6 MB in the end (delta: -36.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 09:00:59,750 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 98.6 MB. Free memory was 71.7 MB in the beginning and 71.6 MB in the end (delta: 27.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 565.00 ms. Allocated memory was 98.6 MB in the beginning and 127.9 MB in the end (delta: 29.4 MB). Free memory was 62.4 MB in the beginning and 98.6 MB in the end (delta: -36.2 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 09:01:02,019 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:01:02,022 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:01:02,066 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:01:02,067 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:01:02,068 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:01:02,070 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:01:02,073 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:01:02,076 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:01:02,077 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:01:02,078 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:01:02,080 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:01:02,081 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:01:02,082 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:01:02,084 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:01:02,086 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:01:02,087 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:01:02,088 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:01:02,091 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:01:02,094 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:01:02,096 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:01:02,098 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:01:02,099 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:01:02,100 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:01:02,105 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:01:02,105 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:01:02,106 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:01:02,107 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:01:02,108 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:01:02,109 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:01:02,110 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:01:02,111 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:01:02,112 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:01:02,113 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:01:02,114 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:01:02,115 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:01:02,116 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:01:02,116 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:01:02,117 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:01:02,118 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:01:02,119 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:01:02,120 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eea19a9-ed02-4c73-8a87-f5627292c864/bin/uautomizer-UnR33cPsHg/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-28 09:01:02,146 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:01:02,147 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:01:02,147 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:01:02,148 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:01:02,149 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:01:02,149 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:01:02,149 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:01:02,150 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:01:02,150 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 09:01:02,150 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 09:01:02,151 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:01:02,151 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 09:01:02,151 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:01:02,152 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 09:01:02,152 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 09:01:02,152 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 09:01:02,152 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 09:01:02,153 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 09:01:02,153 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-28 09:01:02,153 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-28 09:01:02,154 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 09:01:02,154 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:01:02,154 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:01:02,154 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:01:02,155 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 09:01:02,155 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:01:02,155 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:01:02,156 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 09:01:02,156 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-28 09:01:02,156 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-28 09:01:02,156 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:01:02,156 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-28 09:01:02,157 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_2eea19a9-ed02-4c73-8a87-f5627292c864/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eea19a9-ed02-4c73-8a87-f5627292c864/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8cad73f64954eeb86e2707e579f8aca932182fe823da421e8ece02d4d63f0cc3 [2021-10-28 09:01:02,544 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:01:02,579 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:01:02,581 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:01:02,585 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:01:02,586 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:01:02,587 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eea19a9-ed02-4c73-8a87-f5627292c864/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/ldv-memsafety/memleaks_test21-2.i [2021-10-28 09:01:02,664 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eea19a9-ed02-4c73-8a87-f5627292c864/bin/uautomizer-UnR33cPsHg/data/e342bbe9a/726da9fa39604dd398640aa310257e11/FLAG99523e4bb [2021-10-28 09:01:03,350 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:01:03,350 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eea19a9-ed02-4c73-8a87-f5627292c864/sv-benchmarks/c/ldv-memsafety/memleaks_test21-2.i [2021-10-28 09:01:03,376 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eea19a9-ed02-4c73-8a87-f5627292c864/bin/uautomizer-UnR33cPsHg/data/e342bbe9a/726da9fa39604dd398640aa310257e11/FLAG99523e4bb [2021-10-28 09:01:03,593 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eea19a9-ed02-4c73-8a87-f5627292c864/bin/uautomizer-UnR33cPsHg/data/e342bbe9a/726da9fa39604dd398640aa310257e11 [2021-10-28 09:01:03,595 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:01:03,597 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 09:01:03,598 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:01:03,598 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:01:03,602 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:01:03,602 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:01:03" (1/1) ... [2021-10-28 09:01:03,604 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c027fa4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:01:03, skipping insertion in model container [2021-10-28 09:01:03,604 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:01:03" (1/1) ... [2021-10-28 09:01:03,611 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:01:03,667 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:01:04,130 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:01:04,153 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-28 09:01:04,172 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:01:04,256 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:01:04,277 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:01:04,351 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:01:04,422 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:01:04,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:01:04 WrapperNode [2021-10-28 09:01:04,440 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:01:04,441 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:01:04,441 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:01:04,441 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:01:04,461 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:01:04" (1/1) ... [2021-10-28 09:01:04,461 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:01:04" (1/1) ... [2021-10-28 09:01:04,486 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:01:04" (1/1) ... [2021-10-28 09:01:04,486 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:01:04" (1/1) ... [2021-10-28 09:01:04,518 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:01:04" (1/1) ... [2021-10-28 09:01:04,524 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:01:04" (1/1) ... [2021-10-28 09:01:04,531 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:01:04" (1/1) ... [2021-10-28 09:01:04,542 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:01:04,543 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:01:04,543 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:01:04,543 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:01:04,544 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:01:04" (1/1) ... [2021-10-28 09:01:04,551 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:01:04,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eea19a9-ed02-4c73-8a87-f5627292c864/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:01:04,577 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eea19a9-ed02-4c73-8a87-f5627292c864/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 09:01:04,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eea19a9-ed02-4c73-8a87-f5627292c864/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 09:01:04,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-28 09:01:04,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:01:04,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-10-28 09:01:04,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-10-28 09:01:04,621 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-10-28 09:01:04,622 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-10-28 09:01:04,622 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-10-28 09:01:04,622 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-10-28 09:01:04,622 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-10-28 09:01:04,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-10-28 09:01:04,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-10-28 09:01:04,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-10-28 09:01:04,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-10-28 09:01:04,623 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-10-28 09:01:04,623 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-10-28 09:01:04,623 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-10-28 09:01:04,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-10-28 09:01:04,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-10-28 09:01:04,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-10-28 09:01:04,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-10-28 09:01:04,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-10-28 09:01:04,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-10-28 09:01:04,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-10-28 09:01:04,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-10-28 09:01:04,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-10-28 09:01:04,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-10-28 09:01:04,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-10-28 09:01:04,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-10-28 09:01:04,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-10-28 09:01:04,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-10-28 09:01:04,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-10-28 09:01:04,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-10-28 09:01:04,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-10-28 09:01:04,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-10-28 09:01:04,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-10-28 09:01:04,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-10-28 09:01:04,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-10-28 09:01:04,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-10-28 09:01:04,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-10-28 09:01:04,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-10-28 09:01:04,628 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-10-28 09:01:04,628 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-10-28 09:01:04,628 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_21 [2021-10-28 09:01:04,628 INFO L138 BoogieDeclarations]: Found implementation of procedure free_21 [2021-10-28 09:01:04,629 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-10-28 09:01:04,629 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-28 09:01:04,629 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-10-28 09:01:04,629 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-10-28 09:01:04,629 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-10-28 09:01:04,630 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-10-28 09:01:04,630 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-10-28 09:01:04,630 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-10-28 09:01:04,630 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-10-28 09:01:04,630 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-10-28 09:01:04,630 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-10-28 09:01:04,631 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-10-28 09:01:04,631 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-10-28 09:01:04,631 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-10-28 09:01:04,631 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-10-28 09:01:04,631 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-10-28 09:01:04,631 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-10-28 09:01:04,632 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-10-28 09:01:04,632 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-10-28 09:01:04,632 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-10-28 09:01:04,632 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-10-28 09:01:04,632 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-10-28 09:01:04,633 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-10-28 09:01:04,633 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-10-28 09:01:04,633 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-10-28 09:01:04,633 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-10-28 09:01:04,633 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-10-28 09:01:04,633 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-10-28 09:01:04,634 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-10-28 09:01:04,634 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-10-28 09:01:04,634 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-10-28 09:01:04,634 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-10-28 09:01:04,634 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-10-28 09:01:04,634 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-10-28 09:01:04,635 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-10-28 09:01:04,635 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-10-28 09:01:04,635 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-10-28 09:01:04,635 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-10-28 09:01:04,635 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-10-28 09:01:04,635 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-10-28 09:01:04,636 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-10-28 09:01:04,636 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-10-28 09:01:04,636 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-10-28 09:01:04,636 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-10-28 09:01:04,636 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-10-28 09:01:04,636 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-10-28 09:01:04,636 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-10-28 09:01:04,637 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-10-28 09:01:04,637 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-10-28 09:01:04,637 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-10-28 09:01:04,637 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-10-28 09:01:04,637 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-10-28 09:01:04,637 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-10-28 09:01:04,638 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-10-28 09:01:04,638 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-10-28 09:01:04,638 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-10-28 09:01:04,638 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-10-28 09:01:04,638 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-10-28 09:01:04,638 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-10-28 09:01:04,639 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-10-28 09:01:04,639 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-10-28 09:01:04,639 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-10-28 09:01:04,639 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-10-28 09:01:04,639 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-10-28 09:01:04,639 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-10-28 09:01:04,640 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-10-28 09:01:04,640 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-10-28 09:01:04,640 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-10-28 09:01:04,640 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-28 09:01:04,640 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-10-28 09:01:04,640 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-10-28 09:01:04,641 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-10-28 09:01:04,641 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-10-28 09:01:04,641 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-10-28 09:01:04,641 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-10-28 09:01:04,641 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-10-28 09:01:04,641 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-10-28 09:01:04,642 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-10-28 09:01:04,642 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-10-28 09:01:04,642 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-10-28 09:01:04,642 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-10-28 09:01:04,642 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-10-28 09:01:04,642 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-10-28 09:01:04,643 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-10-28 09:01:04,643 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-10-28 09:01:04,643 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-10-28 09:01:04,643 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-10-28 09:01:04,643 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-10-28 09:01:04,647 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-10-28 09:01:04,653 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-10-28 09:01:04,653 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-10-28 09:01:04,654 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-10-28 09:01:04,654 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-10-28 09:01:04,654 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-10-28 09:01:04,654 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-10-28 09:01:04,654 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-10-28 09:01:04,654 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-10-28 09:01:04,654 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-10-28 09:01:04,655 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-10-28 09:01:04,655 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-10-28 09:01:04,655 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-10-28 09:01:04,655 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-10-28 09:01:04,655 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-10-28 09:01:04,655 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-10-28 09:01:04,656 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-10-28 09:01:04,657 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-10-28 09:01:04,657 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-10-28 09:01:04,657 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-10-28 09:01:04,657 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-10-28 09:01:04,657 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-10-28 09:01:04,657 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-10-28 09:01:04,658 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-10-28 09:01:04,658 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-10-28 09:01:04,658 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-28 09:01:04,658 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-10-28 09:01:04,658 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-10-28 09:01:04,658 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-10-28 09:01:04,658 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-10-28 09:01:04,659 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-10-28 09:01:04,659 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-28 09:01:04,659 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-10-28 09:01:04,659 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-10-28 09:01:04,659 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-10-28 09:01:04,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-28 09:01:04,659 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-10-28 09:01:04,660 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-10-28 09:01:04,660 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-10-28 09:01:04,660 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-28 09:01:04,660 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-10-28 09:01:04,660 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-10-28 09:01:04,660 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-10-28 09:01:04,661 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-10-28 09:01:04,661 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-10-28 09:01:04,661 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-10-28 09:01:04,661 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 09:01:04,661 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-10-28 09:01:04,661 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-10-28 09:01:04,661 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-10-28 09:01:04,662 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-10-28 09:01:04,662 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-10-28 09:01:04,662 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-28 09:01:04,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-28 09:01:04,662 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-10-28 09:01:04,662 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-10-28 09:01:04,662 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-10-28 09:01:04,663 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-10-28 09:01:04,663 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-10-28 09:01:04,663 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-10-28 09:01:04,663 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-10-28 09:01:04,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-10-28 09:01:04,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-10-28 09:01:04,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-10-28 09:01:04,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-10-28 09:01:04,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-10-28 09:01:04,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-10-28 09:01:04,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-10-28 09:01:04,666 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-10-28 09:01:04,666 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-10-28 09:01:04,666 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-10-28 09:01:04,666 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_21 [2021-10-28 09:01:04,667 INFO L130 BoogieDeclarations]: Found specification of procedure free_21 [2021-10-28 09:01:04,667 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-10-28 09:01:04,667 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-28 09:01:04,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-28 09:01:04,667 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 09:01:04,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-28 09:01:04,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:01:04,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-10-28 09:01:04,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-10-28 09:01:04,668 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-10-28 09:01:04,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-10-28 09:01:04,668 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-10-28 09:01:05,306 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 09:01:05,678 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 09:01:06,008 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:01:06,009 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-10-28 09:01:06,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:01:06 BoogieIcfgContainer [2021-10-28 09:01:06,012 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:01:06,014 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 09:01:06,014 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 09:01:06,017 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 09:01:06,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 09:01:03" (1/3) ... [2021-10-28 09:01:06,018 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16423472 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:01:06, skipping insertion in model container [2021-10-28 09:01:06,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:01:04" (2/3) ... [2021-10-28 09:01:06,019 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16423472 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:01:06, skipping insertion in model container [2021-10-28 09:01:06,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:01:06" (3/3) ... [2021-10-28 09:01:06,020 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test21-2.i [2021-10-28 09:01:06,026 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 09:01:06,026 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 74 error locations. [2021-10-28 09:01:06,070 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 09:01:06,076 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 09:01:06,077 INFO L340 AbstractCegarLoop]: Starting to check reachability of 74 error locations. [2021-10-28 09:01:06,092 INFO L276 IsEmpty]: Start isEmpty. Operand has 105 states, 58 states have (on average 1.5) internal successors, (87), 79 states have internal predecessors, (87), 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 09:01:06,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-28 09:01:06,100 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:01:06,101 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] [2021-10-28 09:01:06,102 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting free_21Err0ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-28 09:01:06,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:01:06,127 INFO L85 PathProgramCache]: Analyzing trace with hash -1560719066, now seen corresponding path program 1 times [2021-10-28 09:01:06,139 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:01:06,139 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [775842072] [2021-10-28 09:01:06,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:01:06,141 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:01:06,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eea19a9-ed02-4c73-8a87-f5627292c864/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:01:06,147 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eea19a9-ed02-4c73-8a87-f5627292c864/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:01:06,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eea19a9-ed02-4c73-8a87-f5627292c864/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-28 09:01:06,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:01:06,341 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-28 09:01:06,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:01:06,592 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 09:01:06,592 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:01:06,802 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 09:01:06,802 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:01:06,803 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [775842072] [2021-10-28 09:01:06,804 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [775842072] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:01:06,804 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:01:06,806 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 10 [2021-10-28 09:01:06,808 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282518369] [2021-10-28 09:01:06,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-28 09:01:06,814 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:01:06,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-28 09:01:06,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-10-28 09:01:06,834 INFO L87 Difference]: Start difference. First operand has 105 states, 58 states have (on average 1.5) internal successors, (87), 79 states have internal predecessors, (87), 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 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 8 states have internal predecessors, (12), 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 09:01:07,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:01:07,018 INFO L93 Difference]: Finished difference Result 52 states and 54 transitions. [2021-10-28 09:01:07,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 09:01:07,020 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 8 states have internal predecessors, (12), 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 21 [2021-10-28 09:01:07,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:01:07,031 INFO L225 Difference]: With dead ends: 52 [2021-10-28 09:01:07,031 INFO L226 Difference]: Without dead ends: 49 [2021-10-28 09:01:07,034 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2021-10-28 09:01:07,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-10-28 09:01:07,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 43. [2021-10-28 09:01:07,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 25 states have (on average 1.32) internal successors, (33), 29 states have internal predecessors, (33), 7 states have call successors, (7), 7 states have call predecessors, (7), 7 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2021-10-28 09:01:07,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 47 transitions. [2021-10-28 09:01:07,075 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 47 transitions. Word has length 21 [2021-10-28 09:01:07,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:01:07,076 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 47 transitions. [2021-10-28 09:01:07,076 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 8 states have internal predecessors, (12), 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 09:01:07,076 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 47 transitions. [2021-10-28 09:01:07,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-28 09:01:07,077 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:01:07,078 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] [2021-10-28 09:01:07,095 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eea19a9-ed02-4c73-8a87-f5627292c864/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-28 09:01:07,295 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eea19a9-ed02-4c73-8a87-f5627292c864/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:01:07,296 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting free_21Err0ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-28 09:01:07,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:01:07,296 INFO L85 PathProgramCache]: Analyzing trace with hash 182091269, now seen corresponding path program 1 times [2021-10-28 09:01:07,297 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:01:07,297 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [477245916] [2021-10-28 09:01:07,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:01:07,298 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:01:07,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eea19a9-ed02-4c73-8a87-f5627292c864/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:01:07,304 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eea19a9-ed02-4c73-8a87-f5627292c864/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:01:07,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eea19a9-ed02-4c73-8a87-f5627292c864/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-28 09:01:07,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:01:07,473 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:01:07,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:01:07,548 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 09:01:07,548 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:01:07,650 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 09:01:07,651 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:01:07,651 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [477245916] [2021-10-28 09:01:07,652 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [477245916] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:01:07,652 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:01:07,652 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-28 09:01:07,652 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026805768] [2021-10-28 09:01:07,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 09:01:07,659 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:01:07,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 09:01:07,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:01:07,663 INFO L87 Difference]: Start difference. First operand 43 states and 47 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 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 09:01:07,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:01:07,681 INFO L93 Difference]: Finished difference Result 49 states and 53 transitions. [2021-10-28 09:01:07,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 09:01:07,682 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 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 21 [2021-10-28 09:01:07,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:01:07,685 INFO L225 Difference]: With dead ends: 49 [2021-10-28 09:01:07,685 INFO L226 Difference]: Without dead ends: 49 [2021-10-28 09:01:07,686 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:01:07,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-10-28 09:01:07,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 47. [2021-10-28 09:01:07,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 32 states have internal predecessors, (36), 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 09:01:07,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 51 transitions. [2021-10-28 09:01:07,703 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 51 transitions. Word has length 21 [2021-10-28 09:01:07,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:01:07,703 INFO L470 AbstractCegarLoop]: Abstraction has 47 states and 51 transitions. [2021-10-28 09:01:07,703 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 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 09:01:07,703 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 51 transitions. [2021-10-28 09:01:07,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-28 09:01:07,705 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:01:07,705 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] [2021-10-28 09:01:07,724 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eea19a9-ed02-4c73-8a87-f5627292c864/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-28 09:01:07,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eea19a9-ed02-4c73-8a87-f5627292c864/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:01:07,920 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting free_21Err0ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-28 09:01:07,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:01:07,920 INFO L85 PathProgramCache]: Analyzing trace with hash 311173988, now seen corresponding path program 1 times [2021-10-28 09:01:07,922 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:01:07,922 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [623240215] [2021-10-28 09:01:07,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:01:07,923 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:01:07,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eea19a9-ed02-4c73-8a87-f5627292c864/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:01:07,924 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eea19a9-ed02-4c73-8a87-f5627292c864/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:01:07,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eea19a9-ed02-4c73-8a87-f5627292c864/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-28 09:01:08,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:01:08,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-28 09:01:08,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:01:08,288 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 09:01:08,288 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:01:08,420 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 09:01:08,420 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:01:08,420 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [623240215] [2021-10-28 09:01:08,421 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [623240215] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:01:08,421 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:01:08,421 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-10-28 09:01:08,421 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976670852] [2021-10-28 09:01:08,421 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 09:01:08,422 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:01:08,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 09:01:08,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:01:08,423 INFO L87 Difference]: Start difference. First operand 47 states and 51 transitions. Second operand has 7 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 09:01:08,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:01:08,470 INFO L93 Difference]: Finished difference Result 45 states and 46 transitions. [2021-10-28 09:01:08,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 09:01:08,471 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 21 [2021-10-28 09:01:08,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:01:08,472 INFO L225 Difference]: With dead ends: 45 [2021-10-28 09:01:08,472 INFO L226 Difference]: Without dead ends: 45 [2021-10-28 09:01:08,473 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-10-28 09:01:08,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-10-28 09:01:08,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 43. [2021-10-28 09:01:08,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 25 states have (on average 1.16) internal successors, (29), 28 states have internal predecessors, (29), 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 09:01:08,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 44 transitions. [2021-10-28 09:01:08,478 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 44 transitions. Word has length 21 [2021-10-28 09:01:08,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:01:08,478 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 44 transitions. [2021-10-28 09:01:08,479 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 09:01:08,479 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 44 transitions. [2021-10-28 09:01:08,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-28 09:01:08,481 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:01:08,481 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] [2021-10-28 09:01:08,492 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eea19a9-ed02-4c73-8a87-f5627292c864/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-28 09:01:08,681 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eea19a9-ed02-4c73-8a87-f5627292c864/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:01:08,682 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting free_21Err1ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-28 09:01:08,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:01:08,682 INFO L85 PathProgramCache]: Analyzing trace with hash -1137650385, now seen corresponding path program 1 times [2021-10-28 09:01:08,682 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:01:08,683 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1242815133] [2021-10-28 09:01:08,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:01:08,683 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:01:08,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eea19a9-ed02-4c73-8a87-f5627292c864/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:01:08,684 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eea19a9-ed02-4c73-8a87-f5627292c864/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:01:08,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eea19a9-ed02-4c73-8a87-f5627292c864/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-28 09:01:08,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:01:08,863 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-28 09:01:08,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:01:09,204 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 09:01:09,204 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:01:09,655 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 09:01:09,656 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:01:09,656 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1242815133] [2021-10-28 09:01:09,656 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1242815133] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:01:09,656 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:01:09,656 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 20 [2021-10-28 09:01:09,656 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996626980] [2021-10-28 09:01:09,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-28 09:01:09,657 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:01:09,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-28 09:01:09,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=354, Unknown=0, NotChecked=0, Total=420 [2021-10-28 09:01:09,658 INFO L87 Difference]: Start difference. First operand 43 states and 44 transitions. Second operand has 21 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 15 states have internal predecessors, (26), 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 09:01:10,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:01:10,346 INFO L93 Difference]: Finished difference Result 56 states and 57 transitions. [2021-10-28 09:01:10,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-28 09:01:10,347 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 15 states have internal predecessors, (26), 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 22 [2021-10-28 09:01:10,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:01:10,349 INFO L225 Difference]: With dead ends: 56 [2021-10-28 09:01:10,349 INFO L226 Difference]: Without dead ends: 56 [2021-10-28 09:01:10,350 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=121, Invalid=635, Unknown=0, NotChecked=0, Total=756 [2021-10-28 09:01:10,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2021-10-28 09:01:10,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 42. [2021-10-28 09:01:10,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 25 states have (on average 1.12) internal successors, (28), 27 states have internal predecessors, (28), 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 09:01:10,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 43 transitions. [2021-10-28 09:01:10,356 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 43 transitions. Word has length 22 [2021-10-28 09:01:10,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:01:10,357 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 43 transitions. [2021-10-28 09:01:10,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 15 states have internal predecessors, (26), 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 09:01:10,357 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 43 transitions. [2021-10-28 09:01:10,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-28 09:01:10,358 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:01:10,358 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 09:01:10,379 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eea19a9-ed02-4c73-8a87-f5627292c864/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-28 09:01:10,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eea19a9-ed02-4c73-8a87-f5627292c864/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:01:10,579 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting free_21Err2ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-28 09:01:10,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:01:10,580 INFO L85 PathProgramCache]: Analyzing trace with hash -907423160, now seen corresponding path program 1 times [2021-10-28 09:01:10,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:01:10,581 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1559780478] [2021-10-28 09:01:10,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:01:10,581 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:01:10,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eea19a9-ed02-4c73-8a87-f5627292c864/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:01:10,582 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eea19a9-ed02-4c73-8a87-f5627292c864/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:01:10,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eea19a9-ed02-4c73-8a87-f5627292c864/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-28 09:01:10,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:01:10,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-28 09:01:10,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:01:10,825 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 09:01:10,962 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 09:01:10,962 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:01:11,149 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 09:01:11,150 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:01:11,150 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1559780478] [2021-10-28 09:01:11,151 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1559780478] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:01:11,151 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:01:11,151 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 10 [2021-10-28 09:01:11,151 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251570046] [2021-10-28 09:01:11,152 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-28 09:01:11,152 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:01:11,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-28 09:01:11,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-10-28 09:01:11,153 INFO L87 Difference]: Start difference. First operand 42 states and 43 transitions. Second operand has 11 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 8 states have internal predecessors, (14), 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 09:01:11,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:01:11,350 INFO L93 Difference]: Finished difference Result 51 states and 53 transitions. [2021-10-28 09:01:11,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 09:01:11,350 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 8 states have internal predecessors, (14), 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 23 [2021-10-28 09:01:11,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:01:11,351 INFO L225 Difference]: With dead ends: 51 [2021-10-28 09:01:11,351 INFO L226 Difference]: Without dead ends: 51 [2021-10-28 09:01:11,352 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 30 SyntacticMatches, 6 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2021-10-28 09:01:11,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-10-28 09:01:11,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2021-10-28 09:01:11,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 32 states have (on average 1.09375) internal successors, (35), 34 states have internal predecessors, (35), 8 states have call successors, (8), 8 states have call predecessors, (8), 9 states have return successors, (10), 8 states have call predecessors, (10), 7 states have call successors, (10) [2021-10-28 09:01:11,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 53 transitions. [2021-10-28 09:01:11,360 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 53 transitions. Word has length 23 [2021-10-28 09:01:11,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:01:11,360 INFO L470 AbstractCegarLoop]: Abstraction has 51 states and 53 transitions. [2021-10-28 09:01:11,360 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 8 states have internal predecessors, (14), 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 09:01:11,360 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 53 transitions. [2021-10-28 09:01:11,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-28 09:01:11,361 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:01:11,361 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 09:01:11,397 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eea19a9-ed02-4c73-8a87-f5627292c864/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-28 09:01:11,562 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eea19a9-ed02-4c73-8a87-f5627292c864/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:01:11,562 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting free_21Err2ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-28 09:01:11,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:01:11,563 INFO L85 PathProgramCache]: Analyzing trace with hash -1412981785, now seen corresponding path program 1 times [2021-10-28 09:01:11,563 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:01:11,563 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1280402610] [2021-10-28 09:01:11,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:01:11,563 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:01:11,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eea19a9-ed02-4c73-8a87-f5627292c864/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:01:11,564 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eea19a9-ed02-4c73-8a87-f5627292c864/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:01:11,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eea19a9-ed02-4c73-8a87-f5627292c864/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-28 09:01:11,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:01:11,755 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 09:01:11,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:01:11,843 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 09:01:11,844 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:01:12,000 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 09:01:12,001 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:01:12,001 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1280402610] [2021-10-28 09:01:12,001 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1280402610] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:01:12,001 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:01:12,001 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-28 09:01:12,001 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904339637] [2021-10-28 09:01:12,002 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 09:01:12,002 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:01:12,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 09:01:12,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:01:12,003 INFO L87 Difference]: Start difference. First operand 51 states and 53 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 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 09:01:12,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:01:12,029 INFO L93 Difference]: Finished difference Result 41 states and 41 transitions. [2021-10-28 09:01:12,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 09:01:12,030 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 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 23 [2021-10-28 09:01:12,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:01:12,031 INFO L225 Difference]: With dead ends: 41 [2021-10-28 09:01:12,031 INFO L226 Difference]: Without dead ends: 41 [2021-10-28 09:01:12,032 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:01:12,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2021-10-28 09:01:12,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2021-10-28 09:01:12,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 25 states have (on average 1.04) internal successors, (26), 26 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 09:01:12,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 41 transitions. [2021-10-28 09:01:12,042 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 41 transitions. Word has length 23 [2021-10-28 09:01:12,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:01:12,042 INFO L470 AbstractCegarLoop]: Abstraction has 41 states and 41 transitions. [2021-10-28 09:01:12,042 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 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 09:01:12,043 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 41 transitions. [2021-10-28 09:01:12,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-28 09:01:12,044 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:01:12,044 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] [2021-10-28 09:01:12,065 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eea19a9-ed02-4c73-8a87-f5627292c864/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-28 09:01:12,265 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eea19a9-ed02-4c73-8a87-f5627292c864/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:01:12,266 INFO L402 AbstractCegarLoop]: === Iteration 7 === 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 09:01:12,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:01:12,266 INFO L85 PathProgramCache]: Analyzing trace with hash -298029978, now seen corresponding path program 1 times [2021-10-28 09:01:12,266 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:01:12,267 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2004922987] [2021-10-28 09:01:12,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:01:12,267 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:01:12,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eea19a9-ed02-4c73-8a87-f5627292c864/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:01:12,268 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eea19a9-ed02-4c73-8a87-f5627292c864/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:01:12,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eea19a9-ed02-4c73-8a87-f5627292c864/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-28 09:01:12,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:01:12,483 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-28 09:01:12,484 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:01:12,572 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 09:01:12,572 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:01:12,750 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 09:01:12,751 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:01:12,751 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2004922987] [2021-10-28 09:01:12,751 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2004922987] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:01:12,751 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:01:12,751 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-28 09:01:12,751 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901999414] [2021-10-28 09:01:12,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:01:12,752 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:01:12,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:01:12,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:01:12,753 INFO L87 Difference]: Start difference. First operand 41 states and 41 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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 09:01:12,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:01:12,780 INFO L93 Difference]: Finished difference Result 44 states and 43 transitions. [2021-10-28 09:01:12,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:01:12,780 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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 25 [2021-10-28 09:01:12,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:01:12,781 INFO L225 Difference]: With dead ends: 44 [2021-10-28 09:01:12,781 INFO L226 Difference]: Without dead ends: 29 [2021-10-28 09:01:12,782 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 48 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 09:01:12,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-10-28 09:01:12,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2021-10-28 09:01:12,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 17 states have (on average 1.0) internal successors, (17), 17 states have internal predecessors, (17), 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 09:01:12,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 28 transitions. [2021-10-28 09:01:12,784 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 28 transitions. Word has length 25 [2021-10-28 09:01:12,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:01:12,785 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 28 transitions. [2021-10-28 09:01:12,785 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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 09:01:12,785 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 28 transitions. [2021-10-28 09:01:12,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-28 09:01:12,786 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:01:12,786 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:01:12,801 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eea19a9-ed02-4c73-8a87-f5627292c864/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-28 09:01:13,001 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eea19a9-ed02-4c73-8a87-f5627292c864/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:01:13,002 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-28 09:01:13,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:01:13,002 INFO L85 PathProgramCache]: Analyzing trace with hash -339267371, now seen corresponding path program 1 times [2021-10-28 09:01:13,002 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:01:13,002 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1684400299] [2021-10-28 09:01:13,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:01:13,003 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:01:13,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eea19a9-ed02-4c73-8a87-f5627292c864/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:01:13,004 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eea19a9-ed02-4c73-8a87-f5627292c864/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:01:13,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eea19a9-ed02-4c73-8a87-f5627292c864/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-28 09:01:13,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:01:13,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 23 conjunts are in the unsatisfiable core [2021-10-28 09:01:13,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:01:13,621 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 09:01:13,621 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:01:28,467 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:01:28,467 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1684400299] [2021-10-28 09:01:28,468 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(= (store |v_old(#valid)_BEFORE_CALL_14| v_entry_point_~dev~0.base_17 (_ bv0 1)) v_prenex_1)=(= (select v_prenex_1 v_antiDerIndex_entry0_1) (select (store |v_old(#valid)_BEFORE_CALL_14| v_entry_point_~dev~0.base_17 (_ bv0 1)) v_antiDerIndex_entry0_1))} [2021-10-28 09:01:28,468 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [233182507] [2021-10-28 09:01:28,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:01:28,469 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-28 09:01:28,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eea19a9-ed02-4c73-8a87-f5627292c864/bin/uautomizer-UnR33cPsHg/cvc4 [2021-10-28 09:01:28,480 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eea19a9-ed02-4c73-8a87-f5627292c864/bin/uautomizer-UnR33cPsHg/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-28 09:01:28,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eea19a9-ed02-4c73-8a87-f5627292c864/bin/uautomizer-UnR33cPsHg/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2021-10-28 09:01:28,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:01:28,878 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 25 conjunts are in the unsatisfiable core [2021-10-28 09:01:28,880 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:01:28,910 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-10-28 09:01:28,911 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 26 treesize of output 29 [2021-10-28 09:01:37,509 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 09:01:37,509 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:01:58,896 INFO L354 Elim1Store]: treesize reduction 16, result has 78.1 percent of original size [2021-10-28 09:01:58,897 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 65 treesize of output 112 [2021-10-28 09:01:59,434 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(not (= (store |old(#valid)| |free_21_#in~dev.base| (_ bv0 1)) v_prenex_3))=(not (= (select v_prenex_3 v_antiDerIndex_entry0_3) (select (store |old(#valid)| |free_21_#in~dev.base| (_ bv0 1)) v_antiDerIndex_entry0_3)))} [2021-10-28 09:01:59,434 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [888844119] [2021-10-28 09:01:59,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:01:59,434 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:01:59,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eea19a9-ed02-4c73-8a87-f5627292c864/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:01:59,438 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eea19a9-ed02-4c73-8a87-f5627292c864/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:01:59,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eea19a9-ed02-4c73-8a87-f5627292c864/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-10-28 09:01:59,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:01:59,762 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-28 09:01:59,764 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:02:00,018 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 09:02:00,018 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:02:16,896 INFO L354 Elim1Store]: treesize reduction 15, result has 79.5 percent of original size [2021-10-28 09:02:16,896 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 63 treesize of output 111 [2021-10-28 09:02:17,320 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(not (= (store |old(#valid)| |free_21_#in~dev.base| (_ bv0 1)) v_prenex_5))=(not (= (select v_prenex_5 v_antiDerIndex_entry0_5) (select (store |old(#valid)| |free_21_#in~dev.base| (_ bv0 1)) v_antiDerIndex_entry0_5)))} [2021-10-28 09:02:17,320 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:02:17,320 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-10-28 09:02:17,320 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-10-28 09:02:17,320 INFO L627 BasicCegarLoop]: Counterexample might be feasible [2021-10-28 09:02:17,328 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-10-28 09:02:17,330 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION [2021-10-28 09:02:17,331 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION [2021-10-28 09:02:17,331 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION [2021-10-28 09:02:17,331 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION [2021-10-28 09:02:17,331 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION [2021-10-28 09:02:17,332 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION [2021-10-28 09:02:17,332 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION [2021-10-28 09:02:17,332 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION [2021-10-28 09:02:17,332 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION [2021-10-28 09:02:17,333 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION [2021-10-28 09:02:17,333 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION [2021-10-28 09:02:17,333 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION [2021-10-28 09:02:17,333 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION [2021-10-28 09:02:17,333 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION [2021-10-28 09:02:17,334 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION [2021-10-28 09:02:17,334 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION [2021-10-28 09:02:17,334 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION [2021-10-28 09:02:17,334 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION [2021-10-28 09:02:17,334 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION [2021-10-28 09:02:17,335 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION [2021-10-28 09:02:17,335 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION [2021-10-28 09:02:17,335 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION [2021-10-28 09:02:17,335 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION [2021-10-28 09:02:17,335 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION [2021-10-28 09:02:17,336 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION [2021-10-28 09:02:17,336 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION [2021-10-28 09:02:17,336 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION [2021-10-28 09:02:17,336 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION [2021-10-28 09:02:17,336 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION [2021-10-28 09:02:17,337 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION [2021-10-28 09:02:17,337 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION [2021-10-28 09:02:17,337 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION [2021-10-28 09:02:17,337 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION [2021-10-28 09:02:17,337 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION [2021-10-28 09:02:17,338 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION [2021-10-28 09:02:17,338 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION [2021-10-28 09:02:17,338 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION [2021-10-28 09:02:17,338 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION [2021-10-28 09:02:17,338 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION [2021-10-28 09:02:17,339 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION [2021-10-28 09:02:17,339 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION [2021-10-28 09:02:17,339 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION [2021-10-28 09:02:17,339 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:02:17,340 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:02:17,340 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:02:17,340 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:02:17,340 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:02:17,340 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:02:17,341 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION [2021-10-28 09:02:17,341 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION [2021-10-28 09:02:17,341 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION [2021-10-28 09:02:17,341 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION [2021-10-28 09:02:17,341 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION [2021-10-28 09:02:17,342 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION [2021-10-28 09:02:17,342 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION [2021-10-28 09:02:17,342 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION [2021-10-28 09:02:17,342 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:02:17,342 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:02:17,343 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:02:17,343 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:02:17,343 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:02:17,343 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:02:17,344 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION [2021-10-28 09:02:17,344 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION [2021-10-28 09:02:17,344 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION [2021-10-28 09:02:17,344 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION [2021-10-28 09:02:17,344 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION [2021-10-28 09:02:17,345 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION [2021-10-28 09:02:17,345 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION [2021-10-28 09:02:17,345 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION [2021-10-28 09:02:17,345 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_21Err0ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:02:17,346 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_21Err1ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:02:17,346 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_21Err2ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:02:17,364 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eea19a9-ed02-4c73-8a87-f5627292c864/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-28 09:02:17,563 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eea19a9-ed02-4c73-8a87-f5627292c864/bin/uautomizer-UnR33cPsHg/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2021-10-28 09:02:17,782 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eea19a9-ed02-4c73-8a87-f5627292c864/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-10-28 09:02:17,960 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eea19a9-ed02-4c73-8a87-f5627292c864/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eea19a9-ed02-4c73-8a87-f5627292c864/bin/uautomizer-UnR33cPsHg/cvc4 --incremental --print-success --lang smt,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eea19a9-ed02-4c73-8a87-f5627292c864/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:02:17,963 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:02:17,966 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 09:02:17,969 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-10-28 09:02:17,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 09:02:17 BoogieIcfgContainer [2021-10-28 09:02:17,981 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 09:02:17,982 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:02:17,982 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:02:17,982 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:02:17,983 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:01:06" (3/4) ... [2021-10-28 09:02:17,985 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 09:02:17,985 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:02:17,986 INFO L168 Benchmark]: Toolchain (without parser) took 74389.41 ms. Allocated memory was 54.5 MB in the beginning and 123.7 MB in the end (delta: 69.2 MB). Free memory was 30.8 MB in the beginning and 67.4 MB in the end (delta: -36.6 MB). Peak memory consumption was 33.4 MB. Max. memory is 16.1 GB. [2021-10-28 09:02:17,986 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 54.5 MB. Free memory is still 35.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:02:17,987 INFO L168 Benchmark]: CACSL2BoogieTranslator took 842.21 ms. Allocated memory was 54.5 MB in the beginning and 69.2 MB in the end (delta: 14.7 MB). Free memory was 30.6 MB in the beginning and 49.8 MB in the end (delta: -19.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-28 09:02:17,987 INFO L168 Benchmark]: Boogie Preprocessor took 101.45 ms. Allocated memory is still 69.2 MB. Free memory was 49.8 MB in the beginning and 45.0 MB in the end (delta: 4.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:02:17,987 INFO L168 Benchmark]: RCFGBuilder took 1469.01 ms. Allocated memory is still 69.2 MB. Free memory was 45.0 MB in the beginning and 33.7 MB in the end (delta: 11.3 MB). Peak memory consumption was 22.2 MB. Max. memory is 16.1 GB. [2021-10-28 09:02:17,988 INFO L168 Benchmark]: TraceAbstraction took 71967.78 ms. Allocated memory was 69.2 MB in the beginning and 123.7 MB in the end (delta: 54.5 MB). Free memory was 33.1 MB in the beginning and 67.4 MB in the end (delta: -34.4 MB). Peak memory consumption was 61.6 MB. Max. memory is 16.1 GB. [2021-10-28 09:02:17,988 INFO L168 Benchmark]: Witness Printer took 3.53 ms. Allocated memory is still 123.7 MB. Free memory is still 67.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:02:17,989 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 54.5 MB. Free memory is still 35.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 842.21 ms. Allocated memory was 54.5 MB in the beginning and 69.2 MB in the end (delta: 14.7 MB). Free memory was 30.6 MB in the beginning and 49.8 MB in the end (delta: -19.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 101.45 ms. Allocated memory is still 69.2 MB. Free memory was 49.8 MB in the beginning and 45.0 MB in the end (delta: 4.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1469.01 ms. Allocated memory is still 69.2 MB. Free memory was 45.0 MB in the beginning and 33.7 MB in the end (delta: 11.3 MB). Peak memory consumption was 22.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 71967.78 ms. Allocated memory was 69.2 MB in the beginning and 123.7 MB in the end (delta: 54.5 MB). Free memory was 33.1 MB in the beginning and 67.4 MB in the end (delta: -34.4 MB). Peak memory consumption was 61.6 MB. Max. memory is 16.1 GB. * Witness Printer took 3.53 ms. Allocated memory is still 123.7 MB. Free memory is still 67.4 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: 779]: 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 779. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L780] CALL entry_point() [L776] CALL, EXPR alloc_21() [L762] CALL, EXPR ldv_malloc(sizeof(struct A21)) [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L762] RET, EXPR ldv_malloc(sizeof(struct A21)) [L762] struct A21 *p = (struct A21*)ldv_malloc(sizeof(struct A21)); [L763] COND TRUE \read(*p) [L764] return &p->dev; [L776] RET, EXPR alloc_21() [L776] struct ldv_device *dev = alloc_21(); [L777] CALL free_21(dev) [L770] COND TRUE \read(*dev) [L771] const typeof( ((struct A21 *)0)->dev ) *__mptr = (dev); [L771] struct A21 *p = ({ const typeof( ((struct A21 *)0)->dev ) *__mptr = (dev); (struct A21 *)( (char *)__mptr - ((size_t) &((struct A21 *)0)->dev) );}); [L772] free(p) [L772] free(p) [L772] free(p) [L777] RET free_21(dev) [L780] 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: 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. - UnprovableResult [Line: 772]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 772]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 772]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 49 procedures, 345 locations, 74 error locations. Started 1 CEGAR loops. OverallTime: 71.8s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 216 SDtfs, 123 SDslu, 976 SDs, 0 SdLazy, 610 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 319 GetRequests, 250 SyntacticMatches, 6 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=105occurred in iteration=0, InterpolantAutomatonStates: 65, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 24 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 17.8s InterpolantComputationTime, 184 NumberOfCodeBlocks, 184 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 325 ConstructedInterpolants, 3 QuantifiedInterpolants, 1256 SizeOfPredicates, 20 NumberOfNonLiveVariables, 695 ConjunctsInSsa, 92 ConjunctsInUnsatCore, 15 InterpolantComputations, 15 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 09:02:18,051 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eea19a9-ed02-4c73-8a87-f5627292c864/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...