./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test8.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8659c327-0e6e-49ba-b6b4-a2971a3a0a42/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8659c327-0e6e-49ba-b6b4-a2971a3a0a42/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8659c327-0e6e-49ba-b6b4-a2971a3a0a42/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8659c327-0e6e-49ba-b6b4-a2971a3a0a42/bin/uautomizer-j4sWxH34Be/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test8.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8659c327-0e6e-49ba-b6b4-a2971a3a0a42/bin/uautomizer-j4sWxH34Be/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8659c327-0e6e-49ba-b6b4-a2971a3a0a42/bin/uautomizer-j4sWxH34Be --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 14e73bee1ff131a549474bab511d8101c0585ce83d137ab03c9c7f9d80a198cf ................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8659c327-0e6e-49ba-b6b4-a2971a3a0a42/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8659c327-0e6e-49ba-b6b4-a2971a3a0a42/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8659c327-0e6e-49ba-b6b4-a2971a3a0a42/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8659c327-0e6e-49ba-b6b4-a2971a3a0a42/bin/uautomizer-j4sWxH34Be/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test8.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8659c327-0e6e-49ba-b6b4-a2971a3a0a42/bin/uautomizer-j4sWxH34Be/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8659c327-0e6e-49ba-b6b4-a2971a3a0a42/bin/uautomizer-j4sWxH34Be --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 14e73bee1ff131a549474bab511d8101c0585ce83d137ab03c9c7f9d80a198cf ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 20:09:06,670 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 20:09:06,673 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 20:09:06,728 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 20:09:06,729 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 20:09:06,735 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 20:09:06,737 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 20:09:06,742 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 20:09:06,745 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 20:09:06,752 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 20:09:06,754 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 20:09:06,755 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 20:09:06,755 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 20:09:06,756 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 20:09:06,758 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 20:09:06,759 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 20:09:06,760 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 20:09:06,761 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 20:09:06,769 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 20:09:06,779 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 20:09:06,781 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 20:09:06,784 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 20:09:06,790 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 20:09:06,791 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 20:09:06,794 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 20:09:06,795 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 20:09:06,795 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 20:09:06,796 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 20:09:06,797 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 20:09:06,798 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 20:09:06,798 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 20:09:06,799 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 20:09:06,803 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 20:09:06,804 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 20:09:06,806 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 20:09:06,806 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 20:09:06,807 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 20:09:06,807 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 20:09:06,807 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 20:09:06,809 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 20:09:06,810 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 20:09:06,811 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8659c327-0e6e-49ba-b6b4-a2971a3a0a42/bin/uautomizer-j4sWxH34Be/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-10-21 20:09:06,862 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 20:09:06,862 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 20:09:06,863 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 20:09:06,863 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 20:09:06,864 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 20:09:06,864 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 20:09:06,865 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 20:09:06,865 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 20:09:06,865 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 20:09:06,865 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 20:09:06,865 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 20:09:06,866 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 20:09:06,866 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 20:09:06,866 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-21 20:09:06,866 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-21 20:09:06,866 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-21 20:09:06,866 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 20:09:06,867 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-21 20:09:06,867 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 20:09:06,867 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 20:09:06,867 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 20:09:06,867 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 20:09:06,870 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 20:09:06,870 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 20:09:06,870 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 20:09:06,871 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 20:09:06,871 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 20:09:06,871 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-21 20:09:06,872 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 20:09:06,872 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_8659c327-0e6e-49ba-b6b4-a2971a3a0a42/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8659c327-0e6e-49ba-b6b4-a2971a3a0a42/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14e73bee1ff131a549474bab511d8101c0585ce83d137ab03c9c7f9d80a198cf [2021-10-21 20:09:07,207 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 20:09:07,234 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 20:09:07,237 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 20:09:07,238 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 20:09:07,240 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 20:09:07,242 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8659c327-0e6e-49ba-b6b4-a2971a3a0a42/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/ldv-memsafety/memleaks_test8.i [2021-10-21 20:09:07,301 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8659c327-0e6e-49ba-b6b4-a2971a3a0a42/bin/uautomizer-j4sWxH34Be/data/eea85d2c5/686ec6157521411d96f1d4339b7d1692/FLAGf1e66c66b [2021-10-21 20:09:07,816 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 20:09:07,817 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8659c327-0e6e-49ba-b6b4-a2971a3a0a42/sv-benchmarks/c/ldv-memsafety/memleaks_test8.i [2021-10-21 20:09:07,843 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8659c327-0e6e-49ba-b6b4-a2971a3a0a42/bin/uautomizer-j4sWxH34Be/data/eea85d2c5/686ec6157521411d96f1d4339b7d1692/FLAGf1e66c66b [2021-10-21 20:09:08,106 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8659c327-0e6e-49ba-b6b4-a2971a3a0a42/bin/uautomizer-j4sWxH34Be/data/eea85d2c5/686ec6157521411d96f1d4339b7d1692 [2021-10-21 20:09:08,109 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 20:09:08,111 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-21 20:09:08,112 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 20:09:08,113 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 20:09:08,116 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 20:09:08,117 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:09:08" (1/1) ... [2021-10-21 20:09:08,118 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b226407 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:09:08, skipping insertion in model container [2021-10-21 20:09:08,119 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:09:08" (1/1) ... [2021-10-21 20:09:08,126 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 20:09:08,166 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 20:09:08,613 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:09:08,639 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) [2021-10-21 20:09:08,640 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@53642d3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:09:08, skipping insertion in model container [2021-10-21 20:09:08,641 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 20:09:08,641 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-10-21 20:09:08,644 INFO L168 Benchmark]: Toolchain (without parser) took 531.66 ms. Allocated memory is still 113.2 MB. Free memory was 74.2 MB in the beginning and 83.2 MB in the end (delta: -9.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 20:09:08,645 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 113.2 MB. Free memory is still 91.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:09:08,647 INFO L168 Benchmark]: CACSL2BoogieTranslator took 528.84 ms. Allocated memory is still 113.2 MB. Free memory was 73.9 MB in the beginning and 83.2 MB in the end (delta: -9.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 20:09:08,649 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 113.2 MB. Free memory is still 91.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 528.84 ms. Allocated memory is still 113.2 MB. Free memory was 73.9 MB in the beginning and 83.2 MB in the end (delta: -9.3 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-e943c26 [2021-10-21 20:09:10,858 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 20:09:10,862 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 20:09:10,916 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 20:09:10,917 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 20:09:10,922 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 20:09:10,925 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 20:09:10,933 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 20:09:10,936 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 20:09:10,944 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 20:09:10,945 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 20:09:10,948 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 20:09:10,949 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 20:09:10,951 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 20:09:10,954 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 20:09:10,956 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 20:09:10,958 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 20:09:10,959 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 20:09:10,964 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 20:09:10,969 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 20:09:10,974 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 20:09:10,975 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 20:09:10,978 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 20:09:10,980 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 20:09:10,986 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 20:09:10,986 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 20:09:10,987 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 20:09:10,989 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 20:09:10,989 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 20:09:10,990 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 20:09:10,991 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 20:09:10,992 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 20:09:10,993 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 20:09:10,994 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 20:09:10,996 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 20:09:10,996 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 20:09:10,997 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 20:09:10,998 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 20:09:10,998 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 20:09:11,000 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 20:09:11,000 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 20:09:11,001 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8659c327-0e6e-49ba-b6b4-a2971a3a0a42/bin/uautomizer-j4sWxH34Be/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-21 20:09:11,046 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 20:09:11,046 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 20:09:11,047 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 20:09:11,047 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 20:09:11,049 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 20:09:11,050 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 20:09:11,050 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 20:09:11,050 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 20:09:11,050 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 20:09:11,051 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 20:09:11,052 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 20:09:11,052 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 20:09:11,052 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 20:09:11,052 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-21 20:09:11,053 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-21 20:09:11,053 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-21 20:09:11,053 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 20:09:11,053 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-21 20:09:11,054 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-21 20:09:11,054 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-21 20:09:11,054 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 20:09:11,054 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 20:09:11,055 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 20:09:11,055 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 20:09:11,055 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 20:09:11,055 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 20:09:11,056 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 20:09:11,056 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 20:09:11,056 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-21 20:09:11,056 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-21 20:09:11,056 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 20:09:11,057 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-21 20:09:11,057 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_8659c327-0e6e-49ba-b6b4-a2971a3a0a42/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8659c327-0e6e-49ba-b6b4-a2971a3a0a42/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14e73bee1ff131a549474bab511d8101c0585ce83d137ab03c9c7f9d80a198cf [2021-10-21 20:09:11,405 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 20:09:11,443 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 20:09:11,446 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 20:09:11,447 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 20:09:11,448 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 20:09:11,450 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8659c327-0e6e-49ba-b6b4-a2971a3a0a42/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/ldv-memsafety/memleaks_test8.i [2021-10-21 20:09:11,530 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8659c327-0e6e-49ba-b6b4-a2971a3a0a42/bin/uautomizer-j4sWxH34Be/data/43be2b9c9/046d9a0831354c45a8ccc461caad0a8b/FLAGdca934566 [2021-10-21 20:09:12,096 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 20:09:12,097 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8659c327-0e6e-49ba-b6b4-a2971a3a0a42/sv-benchmarks/c/ldv-memsafety/memleaks_test8.i [2021-10-21 20:09:12,120 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8659c327-0e6e-49ba-b6b4-a2971a3a0a42/bin/uautomizer-j4sWxH34Be/data/43be2b9c9/046d9a0831354c45a8ccc461caad0a8b/FLAGdca934566 [2021-10-21 20:09:12,399 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8659c327-0e6e-49ba-b6b4-a2971a3a0a42/bin/uautomizer-j4sWxH34Be/data/43be2b9c9/046d9a0831354c45a8ccc461caad0a8b [2021-10-21 20:09:12,406 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 20:09:12,408 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-21 20:09:12,409 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 20:09:12,410 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 20:09:12,413 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 20:09:12,414 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:09:12" (1/1) ... [2021-10-21 20:09:12,416 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42ab4882 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:09:12, skipping insertion in model container [2021-10-21 20:09:12,416 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:09:12" (1/1) ... [2021-10-21 20:09:12,424 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 20:09:12,494 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 20:09:13,003 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:09:13,027 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-21 20:09:13,041 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 20:09:13,091 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:09:13,099 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 20:09:13,169 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:09:13,246 INFO L208 MainTranslator]: Completed translation [2021-10-21 20:09:13,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:09:13 WrapperNode [2021-10-21 20:09:13,247 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 20:09:13,250 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 20:09:13,251 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 20:09:13,251 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 20:09:13,261 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:09:13" (1/1) ... [2021-10-21 20:09:13,261 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:09:13" (1/1) ... [2021-10-21 20:09:13,295 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:09:13" (1/1) ... [2021-10-21 20:09:13,296 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:09:13" (1/1) ... [2021-10-21 20:09:13,330 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:09:13" (1/1) ... [2021-10-21 20:09:13,336 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:09:13" (1/1) ... [2021-10-21 20:09:13,343 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:09:13" (1/1) ... [2021-10-21 20:09:13,354 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 20:09:13,355 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 20:09:13,355 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 20:09:13,355 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 20:09:13,356 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:09:13" (1/1) ... [2021-10-21 20:09:13,363 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 20:09:13,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8659c327-0e6e-49ba-b6b4-a2971a3a0a42/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:09:13,386 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8659c327-0e6e-49ba-b6b4-a2971a3a0a42/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-21 20:09:13,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8659c327-0e6e-49ba-b6b4-a2971a3a0a42/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-21 20:09:13,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-21 20:09:13,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 20:09:13,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-10-21 20:09:13,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-10-21 20:09:13,435 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-10-21 20:09:13,436 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-10-21 20:09:13,436 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-10-21 20:09:13,436 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-10-21 20:09:13,436 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-10-21 20:09:13,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-10-21 20:09:13,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-10-21 20:09:13,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-10-21 20:09:13,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-10-21 20:09:13,437 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-10-21 20:09:13,437 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-10-21 20:09:13,438 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-10-21 20:09:13,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-10-21 20:09:13,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-10-21 20:09:13,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-10-21 20:09:13,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-10-21 20:09:13,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-10-21 20:09:13,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-10-21 20:09:13,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-10-21 20:09:13,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-10-21 20:09:13,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-10-21 20:09:13,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-10-21 20:09:13,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-10-21 20:09:13,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-10-21 20:09:13,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-10-21 20:09:13,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-10-21 20:09:13,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-10-21 20:09:13,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-10-21 20:09:13,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-10-21 20:09:13,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-10-21 20:09:13,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-10-21 20:09:13,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-10-21 20:09:13,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-10-21 20:09:13,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-10-21 20:09:13,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-10-21 20:09:13,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-10-21 20:09:13,442 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-10-21 20:09:13,443 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-10-21 20:09:13,443 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_8 [2021-10-21 20:09:13,443 INFO L138 BoogieDeclarations]: Found implementation of procedure free_8 [2021-10-21 20:09:13,443 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-10-21 20:09:13,443 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-21 20:09:13,444 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-10-21 20:09:13,444 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-10-21 20:09:13,444 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-10-21 20:09:13,444 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-10-21 20:09:13,444 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-10-21 20:09:13,445 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-10-21 20:09:13,445 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-10-21 20:09:13,445 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-10-21 20:09:13,445 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-10-21 20:09:13,445 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-10-21 20:09:13,446 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-10-21 20:09:13,446 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-10-21 20:09:13,446 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-10-21 20:09:13,446 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-10-21 20:09:13,446 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-10-21 20:09:13,446 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-10-21 20:09:13,447 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-10-21 20:09:13,447 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-10-21 20:09:13,447 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-10-21 20:09:13,447 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-10-21 20:09:13,447 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-10-21 20:09:13,448 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-10-21 20:09:13,448 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-10-21 20:09:13,448 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-10-21 20:09:13,448 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-10-21 20:09:13,448 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-10-21 20:09:13,449 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-10-21 20:09:13,449 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-10-21 20:09:13,449 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-10-21 20:09:13,449 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-10-21 20:09:13,449 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-10-21 20:09:13,449 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-10-21 20:09:13,450 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-10-21 20:09:13,450 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-10-21 20:09:13,450 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-10-21 20:09:13,450 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-10-21 20:09:13,450 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-10-21 20:09:13,451 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-10-21 20:09:13,451 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-10-21 20:09:13,451 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-10-21 20:09:13,451 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-10-21 20:09:13,451 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-10-21 20:09:13,451 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-10-21 20:09:13,452 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-10-21 20:09:13,452 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-10-21 20:09:13,452 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-10-21 20:09:13,452 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-10-21 20:09:13,452 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-10-21 20:09:13,453 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-10-21 20:09:13,453 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-10-21 20:09:13,453 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-10-21 20:09:13,453 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-10-21 20:09:13,453 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-10-21 20:09:13,453 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-10-21 20:09:13,454 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-10-21 20:09:13,454 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-10-21 20:09:13,454 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-10-21 20:09:13,454 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-10-21 20:09:13,454 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-10-21 20:09:13,455 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-10-21 20:09:13,455 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-10-21 20:09:13,455 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-10-21 20:09:13,455 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-10-21 20:09:13,455 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-10-21 20:09:13,455 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-10-21 20:09:13,456 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-10-21 20:09:13,456 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-21 20:09:13,456 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-10-21 20:09:13,456 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-10-21 20:09:13,456 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-10-21 20:09:13,457 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-10-21 20:09:13,457 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-10-21 20:09:13,457 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-10-21 20:09:13,457 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-10-21 20:09:13,457 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-10-21 20:09:13,458 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-10-21 20:09:13,458 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-10-21 20:09:13,458 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-10-21 20:09:13,458 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-10-21 20:09:13,458 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-10-21 20:09:13,459 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-10-21 20:09:13,459 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-10-21 20:09:13,459 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-10-21 20:09:13,459 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-10-21 20:09:13,459 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-10-21 20:09:13,459 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-10-21 20:09:13,460 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-10-21 20:09:13,460 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-10-21 20:09:13,460 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-10-21 20:09:13,460 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-10-21 20:09:13,460 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-10-21 20:09:13,461 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-10-21 20:09:13,461 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-10-21 20:09:13,461 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-10-21 20:09:13,461 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-10-21 20:09:13,461 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-10-21 20:09:13,461 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-10-21 20:09:13,462 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-10-21 20:09:13,462 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-10-21 20:09:13,462 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-10-21 20:09:13,462 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-10-21 20:09:13,462 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-10-21 20:09:13,463 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-10-21 20:09:13,463 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-10-21 20:09:13,463 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-10-21 20:09:13,463 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-10-21 20:09:13,463 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-10-21 20:09:13,463 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-10-21 20:09:13,464 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-10-21 20:09:13,464 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-10-21 20:09:13,464 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-10-21 20:09:13,464 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-21 20:09:13,464 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-10-21 20:09:13,464 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-10-21 20:09:13,465 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-10-21 20:09:13,465 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-10-21 20:09:13,465 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-10-21 20:09:13,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-21 20:09:13,465 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-10-21 20:09:13,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-10-21 20:09:13,466 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-10-21 20:09:13,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-21 20:09:13,466 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-10-21 20:09:13,466 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-10-21 20:09:13,466 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-10-21 20:09:13,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-21 20:09:13,467 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-10-21 20:09:13,467 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-10-21 20:09:13,467 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-10-21 20:09:13,467 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-10-21 20:09:13,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-10-21 20:09:13,468 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-10-21 20:09:13,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-21 20:09:13,468 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-10-21 20:09:13,468 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-10-21 20:09:13,468 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-10-21 20:09:13,468 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-10-21 20:09:13,469 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-10-21 20:09:13,469 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-21 20:09:13,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-21 20:09:13,469 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-10-21 20:09:13,469 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-10-21 20:09:13,469 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-10-21 20:09:13,470 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-10-21 20:09:13,470 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-10-21 20:09:13,470 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-10-21 20:09:13,470 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-10-21 20:09:13,470 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-10-21 20:09:13,471 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-10-21 20:09:13,471 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-10-21 20:09:13,471 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-10-21 20:09:13,471 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-10-21 20:09:13,471 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-10-21 20:09:13,471 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-10-21 20:09:13,472 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-10-21 20:09:13,472 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-10-21 20:09:13,472 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-10-21 20:09:13,472 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_8 [2021-10-21 20:09:13,472 INFO L130 BoogieDeclarations]: Found specification of procedure free_8 [2021-10-21 20:09:13,473 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-10-21 20:09:13,473 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-21 20:09:13,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-21 20:09:13,473 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 20:09:13,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-21 20:09:13,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 20:09:13,474 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-10-21 20:09:13,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-10-21 20:09:13,474 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-10-21 20:09:13,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-10-21 20:09:13,474 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-10-21 20:09:14,036 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-21 20:09:14,360 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-21 20:09:14,620 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 20:09:14,620 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-10-21 20:09:14,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:09:14 BoogieIcfgContainer [2021-10-21 20:09:14,623 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 20:09:14,641 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-21 20:09:14,642 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-21 20:09:14,644 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-21 20:09:14,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 08:09:12" (1/3) ... [2021-10-21 20:09:14,646 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61b54658 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 08:09:14, skipping insertion in model container [2021-10-21 20:09:14,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:09:13" (2/3) ... [2021-10-21 20:09:14,648 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61b54658 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 08:09:14, skipping insertion in model container [2021-10-21 20:09:14,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:09:14" (3/3) ... [2021-10-21 20:09:14,649 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test8.i [2021-10-21 20:09:14,655 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-21 20:09:14,655 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 74 error locations. [2021-10-21 20:09:14,704 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-21 20:09:14,710 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 [2021-10-21 20:09:14,710 INFO L340 AbstractCegarLoop]: Starting to check reachability of 74 error locations. [2021-10-21 20:09:14,726 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 56 states have (on average 1.5) internal successors, (84), 77 states have internal predecessors, (84), 13 states have call successors, (13), 12 states have call predecessors, (13), 12 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2021-10-21 20:09:14,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-21 20:09:14,733 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:09:14,734 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:09:14,735 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting free_8Err0ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-21 20:09:14,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:09:14,740 INFO L82 PathProgramCache]: Analyzing trace with hash 12717103, now seen corresponding path program 1 times [2021-10-21 20:09:14,751 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 20:09:14,752 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [96337009] [2021-10-21 20:09:14,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:09:14,753 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 20:09:14,753 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8659c327-0e6e-49ba-b6b4-a2971a3a0a42/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 20:09:14,756 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8659c327-0e6e-49ba-b6b4-a2971a3a0a42/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 20:09:14,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8659c327-0e6e-49ba-b6b4-a2971a3a0a42/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-21 20:09:14,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:09:14,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 20:09:14,980 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:09:15,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:09:15,130 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 20:09:15,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:09:15,262 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 20:09:15,264 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [96337009] [2021-10-21 20:09:15,265 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [96337009] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 20:09:15,265 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:09:15,266 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-21 20:09:15,276 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233007414] [2021-10-21 20:09:15,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-21 20:09:15,281 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 20:09:15,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 20:09:15,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 20:09:15,314 INFO L87 Difference]: Start difference. First operand has 103 states, 56 states have (on average 1.5) internal successors, (84), 77 states have internal predecessors, (84), 13 states have call successors, (13), 12 states have call predecessors, (13), 12 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-21 20:09:15,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:09:15,384 INFO L93 Difference]: Finished difference Result 32 states and 33 transitions. [2021-10-21 20:09:15,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 20:09:15,386 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 18 [2021-10-21 20:09:15,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:09:15,394 INFO L225 Difference]: With dead ends: 32 [2021-10-21 20:09:15,394 INFO L226 Difference]: Without dead ends: 29 [2021-10-21 20:09:15,396 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 33.1ms TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-21 20:09:15,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-10-21 20:09:15,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2021-10-21 20:09:15,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 17 states have internal predecessors, (19), 6 states have call successors, (6), 6 states have call predecessors, (6), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-10-21 20:09:15,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2021-10-21 20:09:15,425 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 18 [2021-10-21 20:09:15,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:09:15,425 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2021-10-21 20:09:15,426 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-21 20:09:15,426 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2021-10-21 20:09:15,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-21 20:09:15,427 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:09:15,427 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:09:15,441 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8659c327-0e6e-49ba-b6b4-a2971a3a0a42/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-21 20:09:15,636 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8659c327-0e6e-49ba-b6b4-a2971a3a0a42/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 20:09:15,636 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting free_8Err1ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-21 20:09:15,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:09:15,637 INFO L82 PathProgramCache]: Analyzing trace with hash 394230500, now seen corresponding path program 1 times [2021-10-21 20:09:15,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 20:09:15,638 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1981396949] [2021-10-21 20:09:15,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:09:15,638 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 20:09:15,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8659c327-0e6e-49ba-b6b4-a2971a3a0a42/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 20:09:15,639 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8659c327-0e6e-49ba-b6b4-a2971a3a0a42/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 20:09:15,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8659c327-0e6e-49ba-b6b4-a2971a3a0a42/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-21 20:09:15,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:09:15,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-21 20:09:15,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:09:16,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:09:16,046 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 20:09:16,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:09:16,262 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 20:09:16,262 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1981396949] [2021-10-21 20:09:16,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1981396949] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 20:09:16,263 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:09:16,263 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 8 [2021-10-21 20:09:16,263 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221413418] [2021-10-21 20:09:16,264 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-21 20:09:16,265 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 20:09:16,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-21 20:09:16,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-10-21 20:09:16,266 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand has 9 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 4 states have call successors, (11), 4 states have call predecessors, (11), 6 states have return successors, (6), 6 states have call predecessors, (6), 2 states have call successors, (6) [2021-10-21 20:09:16,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:09:16,523 INFO L93 Difference]: Finished difference Result 41 states and 43 transitions. [2021-10-21 20:09:16,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-21 20:09:16,524 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 4 states have call successors, (11), 4 states have call predecessors, (11), 6 states have return successors, (6), 6 states have call predecessors, (6), 2 states have call successors, (6) Word has length 19 [2021-10-21 20:09:16,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:09:16,525 INFO L225 Difference]: With dead ends: 41 [2021-10-21 20:09:16,525 INFO L226 Difference]: Without dead ends: 41 [2021-10-21 20:09:16,526 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 160.7ms TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-10-21 20:09:16,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2021-10-21 20:09:16,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2021-10-21 20:09:16,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 23 states have (on average 1.173913043478261) internal successors, (27), 25 states have internal predecessors, (27), 7 states have call successors, (7), 7 states have call predecessors, (7), 8 states have return successors, (8), 7 states have call predecessors, (8), 6 states have call successors, (8) [2021-10-21 20:09:16,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 42 transitions. [2021-10-21 20:09:16,534 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 42 transitions. Word has length 19 [2021-10-21 20:09:16,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:09:16,534 INFO L470 AbstractCegarLoop]: Abstraction has 40 states and 42 transitions. [2021-10-21 20:09:16,535 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 4 states have call successors, (11), 4 states have call predecessors, (11), 6 states have return successors, (6), 6 states have call predecessors, (6), 2 states have call successors, (6) [2021-10-21 20:09:16,535 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 42 transitions. [2021-10-21 20:09:16,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-21 20:09:16,536 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:09:16,536 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:09:16,549 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8659c327-0e6e-49ba-b6b4-a2971a3a0a42/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-21 20:09:16,736 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8659c327-0e6e-49ba-b6b4-a2971a3a0a42/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 20:09:16,737 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting free_8Err2ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-21 20:09:16,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:09:16,737 INFO L82 PathProgramCache]: Analyzing trace with hash -663756079, now seen corresponding path program 1 times [2021-10-21 20:09:16,738 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 20:09:16,738 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [725677546] [2021-10-21 20:09:16,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:09:16,739 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 20:09:16,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8659c327-0e6e-49ba-b6b4-a2971a3a0a42/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 20:09:16,740 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8659c327-0e6e-49ba-b6b4-a2971a3a0a42/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 20:09:16,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8659c327-0e6e-49ba-b6b4-a2971a3a0a42/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-21 20:09:16,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:09:16,920 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-21 20:09:16,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:09:16,971 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 [2021-10-21 20:09:17,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:09:17,028 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 20:09:17,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:09:17,173 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 20:09:17,174 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [725677546] [2021-10-21 20:09:17,174 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [725677546] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 20:09:17,174 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:09:17,174 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-21 20:09:17,174 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959747467] [2021-10-21 20:09:17,175 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-21 20:09:17,175 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 20:09:17,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 20:09:17,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 20:09:17,176 INFO L87 Difference]: Start difference. First operand 40 states and 42 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-21 20:09:17,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:09:17,225 INFO L93 Difference]: Finished difference Result 40 states and 41 transitions. [2021-10-21 20:09:17,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 20:09:17,226 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 20 [2021-10-21 20:09:17,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:09:17,229 INFO L225 Difference]: With dead ends: 40 [2021-10-21 20:09:17,229 INFO L226 Difference]: Without dead ends: 40 [2021-10-21 20:09:17,229 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 34 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.9ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 20:09:17,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2021-10-21 20:09:17,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2021-10-21 20:09:17,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 23 states have (on average 1.1304347826086956) internal successors, (26), 25 states have internal predecessors, (26), 7 states have call successors, (7), 7 states have call predecessors, (7), 8 states have return successors, (8), 7 states have call predecessors, (8), 6 states have call successors, (8) [2021-10-21 20:09:17,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 41 transitions. [2021-10-21 20:09:17,236 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 41 transitions. Word has length 20 [2021-10-21 20:09:17,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:09:17,236 INFO L470 AbstractCegarLoop]: Abstraction has 40 states and 41 transitions. [2021-10-21 20:09:17,236 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-21 20:09:17,237 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 41 transitions. [2021-10-21 20:09:17,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-21 20:09:17,238 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:09:17,238 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:09:17,261 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8659c327-0e6e-49ba-b6b4-a2971a3a0a42/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-21 20:09:17,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8659c327-0e6e-49ba-b6b4-a2971a3a0a42/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 20:09:17,450 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting free_8Err2ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-21 20:09:17,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:09:17,450 INFO L82 PathProgramCache]: Analyzing trace with hash 1834259858, now seen corresponding path program 1 times [2021-10-21 20:09:17,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 20:09:17,451 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1982934795] [2021-10-21 20:09:17,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:09:17,451 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 20:09:17,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8659c327-0e6e-49ba-b6b4-a2971a3a0a42/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 20:09:17,452 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8659c327-0e6e-49ba-b6b4-a2971a3a0a42/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 20:09:17,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8659c327-0e6e-49ba-b6b4-a2971a3a0a42/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-21 20:09:17,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:09:17,623 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-21 20:09:17,625 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:09:17,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:09:17,725 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 20:09:17,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:09:17,923 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 20:09:17,924 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1982934795] [2021-10-21 20:09:17,924 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1982934795] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 20:09:17,924 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:09:17,925 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-21 20:09:17,925 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882212280] [2021-10-21 20:09:17,925 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-21 20:09:17,926 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 20:09:17,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 20:09:17,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 20:09:17,927 INFO L87 Difference]: Start difference. First operand 40 states and 41 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-21 20:09:17,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:09:17,987 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2021-10-21 20:09:17,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 20:09:17,987 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 20 [2021-10-21 20:09:17,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:09:17,989 INFO L225 Difference]: With dead ends: 37 [2021-10-21 20:09:17,990 INFO L226 Difference]: Without dead ends: 37 [2021-10-21 20:09:17,990 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 45.6ms TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-21 20:09:17,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-10-21 20:09:17,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 36. [2021-10-21 20:09:17,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 20 states have (on average 1.05) internal successors, (21), 21 states have internal predecessors, (21), 7 states have call successors, (7), 7 states have call predecessors, (7), 8 states have return successors, (8), 7 states have call predecessors, (8), 6 states have call successors, (8) [2021-10-21 20:09:18,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 36 transitions. [2021-10-21 20:09:18,004 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 36 transitions. Word has length 20 [2021-10-21 20:09:18,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:09:18,004 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 36 transitions. [2021-10-21 20:09:18,005 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-21 20:09:18,005 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 36 transitions. [2021-10-21 20:09:18,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-21 20:09:18,007 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:09:18,007 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:09:18,018 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8659c327-0e6e-49ba-b6b4-a2971a3a0a42/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-10-21 20:09:18,218 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8659c327-0e6e-49ba-b6b4-a2971a3a0a42/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 20:09:18,218 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-21 20:09:18,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:09:18,219 INFO L82 PathProgramCache]: Analyzing trace with hash -1534178647, now seen corresponding path program 1 times [2021-10-21 20:09:18,219 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 20:09:18,220 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [670040681] [2021-10-21 20:09:18,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:09:18,220 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 20:09:18,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8659c327-0e6e-49ba-b6b4-a2971a3a0a42/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 20:09:18,221 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8659c327-0e6e-49ba-b6b4-a2971a3a0a42/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 20:09:18,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8659c327-0e6e-49ba-b6b4-a2971a3a0a42/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-21 20:09:18,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:09:18,423 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-21 20:09:18,425 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:09:18,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:09:18,534 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 20:09:18,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:09:18,730 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 20:09:18,731 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [670040681] [2021-10-21 20:09:18,731 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [670040681] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 20:09:18,731 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:09:18,731 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-21 20:09:18,731 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241689350] [2021-10-21 20:09:18,732 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 20:09:18,732 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 20:09:18,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:09:18,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:09:18,733 INFO L87 Difference]: Start difference. First operand 36 states and 36 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-10-21 20:09:18,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:09:18,767 INFO L93 Difference]: Finished difference Result 40 states and 39 transitions. [2021-10-21 20:09:18,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:09:18,768 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 23 [2021-10-21 20:09:18,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:09:18,769 INFO L225 Difference]: With dead ends: 40 [2021-10-21 20:09:18,769 INFO L226 Difference]: Without dead ends: 27 [2021-10-21 20:09:18,769 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:09:18,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-10-21 20:09:18,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2021-10-21 20:09:18,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 15 states have (on average 1.0) internal successors, (15), 15 states have internal predecessors, (15), 6 states have call successors, (6), 6 states have call predecessors, (6), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-10-21 20:09:18,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 26 transitions. [2021-10-21 20:09:18,777 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 26 transitions. Word has length 23 [2021-10-21 20:09:18,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:09:18,778 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 26 transitions. [2021-10-21 20:09:18,778 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-10-21 20:09:18,778 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 26 transitions. [2021-10-21 20:09:18,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-21 20:09:18,779 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:09:18,779 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:09:18,790 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8659c327-0e6e-49ba-b6b4-a2971a3a0a42/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-10-21 20:09:18,992 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8659c327-0e6e-49ba-b6b4-a2971a3a0a42/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 20:09:18,993 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-21 20:09:18,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:09:18,993 INFO L82 PathProgramCache]: Analyzing trace with hash 714098001, now seen corresponding path program 1 times [2021-10-21 20:09:18,993 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 20:09:18,993 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1096563180] [2021-10-21 20:09:18,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:09:18,994 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 20:09:18,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8659c327-0e6e-49ba-b6b4-a2971a3a0a42/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 20:09:18,994 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8659c327-0e6e-49ba-b6b4-a2971a3a0a42/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 20:09:18,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8659c327-0e6e-49ba-b6b4-a2971a3a0a42/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-21 20:09:19,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:09:19,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-21 20:09:19,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:09:19,236 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-10-21 20:09:19,237 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2021-10-21 20:09:19,535 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2021-10-21 20:09:23,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:09:23,815 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 20:09:36,572 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 20:09:36,573 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1096563180] [2021-10-21 20:09:36,573 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(= (store |v_old(#valid)_BEFORE_CALL_14| v_~a8~0.base_77 (_ bv0 1)) v_prenex_1)=(= (select v_prenex_1 v_antiDerIndex_entry0_1) (select (store |v_old(#valid)_BEFORE_CALL_14| v_~a8~0.base_77 (_ bv0 1)) v_antiDerIndex_entry0_1))} [2021-10-21 20:09:36,573 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [144623935] [2021-10-21 20:09:36,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:09:36,574 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-21 20:09:36,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8659c327-0e6e-49ba-b6b4-a2971a3a0a42/bin/uautomizer-j4sWxH34Be/cvc4 [2021-10-21 20:09:36,581 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8659c327-0e6e-49ba-b6b4-a2971a3a0a42/bin/uautomizer-j4sWxH34Be/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-21 20:09:36,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8659c327-0e6e-49ba-b6b4-a2971a3a0a42/bin/uautomizer-j4sWxH34Be/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2021-10-21 20:09:36,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:09:36,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-21 20:09:36,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:09:36,944 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-10-21 20:09:36,945 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 28 [2021-10-21 20:09:37,210 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2021-10-21 20:09:39,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:09:39,360 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 20:09:50,390 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_19| (Array (_ BitVec 32) (_ BitVec 1)))) (or (= (store |c_#valid| c_~a8~0.base (_ bv0 1)) |v_old(#valid)_BEFORE_CALL_19|) (exists ((v_~a8~0.base_77 (_ BitVec 32))) (and (not (= (store |c_old(#valid)| v_~a8~0.base_77 (_ bv0 1)) |v_old(#valid)_BEFORE_CALL_19|)) (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_old(#valid)| v_~a8~0.base_77))))))))) is different from false [2021-10-21 20:09:50,591 INFO L354 Elim1Store]: treesize reduction 16, result has 78.1 percent of original size [2021-10-21 20:09:50,592 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 59 treesize of output 106 [2021-10-21 20:09:51,868 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(not (= (store |old(#valid)| ~a8~0.base (_ bv0 1)) v_prenex_3))=(not (= (select v_prenex_3 v_antiDerIndex_entry0_3) (select (store |old(#valid)| ~a8~0.base (_ bv0 1)) v_antiDerIndex_entry0_3)))} [2021-10-21 20:09:51,868 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [532162009] [2021-10-21 20:09:51,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:09:51,868 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:09:51,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8659c327-0e6e-49ba-b6b4-a2971a3a0a42/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:09:51,877 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8659c327-0e6e-49ba-b6b4-a2971a3a0a42/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:09:51,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8659c327-0e6e-49ba-b6b4-a2971a3a0a42/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-21 20:09:52,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:09:52,172 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-21 20:09:52,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:09:52,309 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2021-10-21 20:09:54,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:09:54,413 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 20:10:09,078 INFO L354 Elim1Store]: treesize reduction 16, result has 78.1 percent of original size [2021-10-21 20:10:09,078 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 61 treesize of output 108 [2021-10-21 20:10:09,594 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(not (= (store |old(#valid)| ~a8~0.base (_ bv0 1)) v_prenex_7))=(not (= (select (store |old(#valid)| ~a8~0.base (_ bv0 1)) v_antiDerIndex_entry0_5) (select v_prenex_7 v_antiDerIndex_entry0_5)))} [2021-10-21 20:10:09,594 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:10:09,594 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-10-21 20:10:09,594 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-10-21 20:10:09,594 INFO L626 BasicCegarLoop]: Counterexample might be feasible [2021-10-21 20:10:09,600 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-10-21 20:10:09,602 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION [2021-10-21 20:10:09,602 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION [2021-10-21 20:10:09,602 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION [2021-10-21 20:10:09,602 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION [2021-10-21 20:10:09,603 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION [2021-10-21 20:10:09,603 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION [2021-10-21 20:10:09,603 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION [2021-10-21 20:10:09,603 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION [2021-10-21 20:10:09,603 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION [2021-10-21 20:10:09,603 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION [2021-10-21 20:10:09,604 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION [2021-10-21 20:10:09,604 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION [2021-10-21 20:10:09,604 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION [2021-10-21 20:10:09,604 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION [2021-10-21 20:10:09,604 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION [2021-10-21 20:10:09,605 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION [2021-10-21 20:10:09,605 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION [2021-10-21 20:10:09,605 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION [2021-10-21 20:10:09,605 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION [2021-10-21 20:10:09,605 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION [2021-10-21 20:10:09,605 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION [2021-10-21 20:10:09,606 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION [2021-10-21 20:10:09,606 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION [2021-10-21 20:10:09,606 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION [2021-10-21 20:10:09,606 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION [2021-10-21 20:10:09,606 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION [2021-10-21 20:10:09,606 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION [2021-10-21 20:10:09,607 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION [2021-10-21 20:10:09,607 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION [2021-10-21 20:10:09,607 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION [2021-10-21 20:10:09,607 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION [2021-10-21 20:10:09,607 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION [2021-10-21 20:10:09,607 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION [2021-10-21 20:10:09,608 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION [2021-10-21 20:10:09,608 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION [2021-10-21 20:10:09,608 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION [2021-10-21 20:10:09,608 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION [2021-10-21 20:10:09,608 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION [2021-10-21 20:10:09,609 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION [2021-10-21 20:10:09,609 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION [2021-10-21 20:10:09,609 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION [2021-10-21 20:10:09,609 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION [2021-10-21 20:10:09,609 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 20:10:09,610 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 20:10:09,610 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 20:10:09,610 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 20:10:09,610 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 20:10:09,610 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 20:10:09,610 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_8Err0ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 20:10:09,610 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_8Err1ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 20:10:09,610 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_8Err2ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 20:10:09,611 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION [2021-10-21 20:10:09,611 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION [2021-10-21 20:10:09,611 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION [2021-10-21 20:10:09,611 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION [2021-10-21 20:10:09,611 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION [2021-10-21 20:10:09,611 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION [2021-10-21 20:10:09,611 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION [2021-10-21 20:10:09,611 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION [2021-10-21 20:10:09,612 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 20:10:09,612 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 20:10:09,612 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 20:10:09,612 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 20:10:09,612 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 20:10:09,612 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 20:10:09,613 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION [2021-10-21 20:10:09,613 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION [2021-10-21 20:10:09,613 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION [2021-10-21 20:10:09,613 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION [2021-10-21 20:10:09,613 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION [2021-10-21 20:10:09,613 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION [2021-10-21 20:10:09,613 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION [2021-10-21 20:10:09,613 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION [2021-10-21 20:10:09,619 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8659c327-0e6e-49ba-b6b4-a2971a3a0a42/bin/uautomizer-j4sWxH34Be/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2021-10-21 20:10:09,834 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8659c327-0e6e-49ba-b6b4-a2971a3a0a42/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-10-21 20:10:10,021 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8659c327-0e6e-49ba-b6b4-a2971a3a0a42/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-21 20:10:10,219 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8659c327-0e6e-49ba-b6b4-a2971a3a0a42/bin/uautomizer-j4sWxH34Be/cvc4 --incremental --print-success --lang smt,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8659c327-0e6e-49ba-b6b4-a2971a3a0a42/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8659c327-0e6e-49ba-b6b4-a2971a3a0a42/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 20:10:10,225 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-21 20:10:10,227 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-10-21 20:10:10,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 08:10:10 BoogieIcfgContainer [2021-10-21 20:10:10,238 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-21 20:10:10,238 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 20:10:10,238 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 20:10:10,239 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 20:10:10,239 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:09:14" (3/4) ... [2021-10-21 20:10:10,242 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-21 20:10:10,242 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 20:10:10,243 INFO L168 Benchmark]: Toolchain (without parser) took 57835.44 ms. Allocated memory was 62.9 MB in the beginning and 109.1 MB in the end (delta: 46.1 MB). Free memory was 41.8 MB in the beginning and 50.8 MB in the end (delta: -8.9 MB). Peak memory consumption was 36.4 MB. Max. memory is 16.1 GB. [2021-10-21 20:10:10,244 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 62.9 MB. Free memory is still 45.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:10:10,244 INFO L168 Benchmark]: CACSL2BoogieTranslator took 838.39 ms. Allocated memory was 62.9 MB in the beginning and 81.8 MB in the end (delta: 18.9 MB). Free memory was 41.5 MB in the beginning and 63.2 MB in the end (delta: -21.7 MB). Peak memory consumption was 16.4 MB. Max. memory is 16.1 GB. [2021-10-21 20:10:10,245 INFO L168 Benchmark]: Boogie Preprocessor took 103.49 ms. Allocated memory is still 81.8 MB. Free memory was 63.2 MB in the beginning and 58.7 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-21 20:10:10,245 INFO L168 Benchmark]: RCFGBuilder took 1268.48 ms. Allocated memory is still 81.8 MB. Free memory was 58.7 MB in the beginning and 34.3 MB in the end (delta: 24.4 MB). Peak memory consumption was 23.3 MB. Max. memory is 16.1 GB. [2021-10-21 20:10:10,246 INFO L168 Benchmark]: TraceAbstraction took 55597.07 ms. Allocated memory was 81.8 MB in the beginning and 109.1 MB in the end (delta: 27.3 MB). Free memory was 59.4 MB in the beginning and 50.8 MB in the end (delta: 8.7 MB). Peak memory consumption was 60.0 MB. Max. memory is 16.1 GB. [2021-10-21 20:10:10,246 INFO L168 Benchmark]: Witness Printer took 4.24 ms. Allocated memory is still 109.1 MB. Free memory is still 50.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:10:10,248 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 62.9 MB. Free memory is still 45.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 838.39 ms. Allocated memory was 62.9 MB in the beginning and 81.8 MB in the end (delta: 18.9 MB). Free memory was 41.5 MB in the beginning and 63.2 MB in the end (delta: -21.7 MB). Peak memory consumption was 16.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 103.49 ms. Allocated memory is still 81.8 MB. Free memory was 63.2 MB in the beginning and 58.7 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1268.48 ms. Allocated memory is still 81.8 MB. Free memory was 58.7 MB in the beginning and 34.3 MB in the end (delta: 24.4 MB). Peak memory consumption was 23.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 55597.07 ms. Allocated memory was 81.8 MB in the beginning and 109.1 MB in the end (delta: 27.3 MB). Free memory was 59.4 MB in the beginning and 50.8 MB in the end (delta: 8.7 MB). Peak memory consumption was 60.0 MB. Max. memory is 16.1 GB. * Witness Printer took 4.24 ms. Allocated memory is still 109.1 MB. Free memory is still 50.8 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, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 769]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: unable to decide satisfiability of path constraint, overapproximation of memtrack at line 769. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L757] int *a8; [L770] CALL entry_point() [L765] CALL alloc_8() [L759] CALL, EXPR ldv_malloc(sizeof(int)) [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L759] RET, EXPR ldv_malloc(sizeof(int)) [L759] a8 = (int *)ldv_malloc(sizeof(int)) [L765] RET alloc_8() [L766] CALL free_8() [L762] COND TRUE \read(*a8) [L762] free(a8) [L762] free(a8) [L762] free(a8) [L766] RET free_8() [L767] a8 = 0 [L770] RET entry_point() - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 762]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 762]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 762]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 49 procedures, 343 locations, 74 error locations. Started 1 CEGAR loops. OverallTime: 55520.4ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 17.0ms, AutomataDifference: 530.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 11.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 141 SDtfs, 89 SDslu, 230 SDs, 0 SdLazy, 158 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 223.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 203 GetRequests, 176 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 262.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=103occurred in iteration=0, InterpolantAutomatonStates: 26, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 46.8ms AutomataMinimizationTime, 5 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 61.6ms SsaConstructionTime, 135.5ms SatisfiabilityAnalysisTime, 1602.2ms InterpolantComputationTime, 100 NumberOfCodeBlocks, 100 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 190 ConstructedInterpolants, 0 QuantifiedInterpolants, 595 SizeOfPredicates, 1 NumberOfNonLiveVariables, 461 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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 [2021-10-21 20:10:10,293 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8659c327-0e6e-49ba-b6b4-a2971a3a0a42/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...