./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test7-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e513ad4-b35b-4494-9ed5-035f59c8145c/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e513ad4-b35b-4494-9ed5-035f59c8145c/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e513ad4-b35b-4494-9ed5-035f59c8145c/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e513ad4-b35b-4494-9ed5-035f59c8145c/bin/uautomizer-GMMbpWq8iD/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test7-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e513ad4-b35b-4494-9ed5-035f59c8145c/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e513ad4-b35b-4494-9ed5-035f59c8145c/bin/uautomizer-GMMbpWq8iD --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 6c172a69da8014b256a4fe200ae36374b8205f0bb7886b059c874c99d6c4501c ................................................................................................................................... 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_4e513ad4-b35b-4494-9ed5-035f59c8145c/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e513ad4-b35b-4494-9ed5-035f59c8145c/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e513ad4-b35b-4494-9ed5-035f59c8145c/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e513ad4-b35b-4494-9ed5-035f59c8145c/bin/uautomizer-GMMbpWq8iD/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test7-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e513ad4-b35b-4494-9ed5-035f59c8145c/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e513ad4-b35b-4494-9ed5-035f59c8145c/bin/uautomizer-GMMbpWq8iD --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 6c172a69da8014b256a4fe200ae36374b8205f0bb7886b059c874c99d6c4501c ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:07:51,986 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:07:51,988 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:07:52,026 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:07:52,026 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:07:52,028 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:07:52,030 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:07:52,033 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:07:52,036 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:07:52,037 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:07:52,039 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:07:52,040 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:07:52,041 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:07:52,043 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:07:52,045 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:07:52,047 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:07:52,049 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:07:52,050 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:07:52,053 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:07:52,056 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:07:52,058 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:07:52,060 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:07:52,062 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:07:52,063 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:07:52,068 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:07:52,069 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:07:52,070 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:07:52,071 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:07:52,072 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:07:52,073 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:07:52,074 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:07:52,075 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:07:52,077 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:07:52,078 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:07:52,079 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:07:52,080 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:07:52,081 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:07:52,082 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:07:52,082 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:07:52,083 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:07:52,085 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:07:52,086 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e513ad4-b35b-4494-9ed5-035f59c8145c/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-10-28 23:07:52,117 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:07:52,118 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:07:52,118 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:07:52,119 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:07:52,120 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:07:52,121 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:07:52,121 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:07:52,122 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:07:52,122 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:07:52,123 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:07:52,123 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:07:52,123 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:07:52,124 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:07:52,124 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 23:07:52,124 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 23:07:52,125 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 23:07:52,125 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:07:52,125 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 23:07:52,126 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:07:52,126 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:07:52,127 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:07:52,127 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:07:52,128 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:07:52,128 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:07:52,128 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:07:52,129 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:07:52,129 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:07:52,130 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 23:07:52,130 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:07:52,130 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_4e513ad4-b35b-4494-9ed5-035f59c8145c/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e513ad4-b35b-4494-9ed5-035f59c8145c/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c172a69da8014b256a4fe200ae36374b8205f0bb7886b059c874c99d6c4501c [2021-10-28 23:07:52,416 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:07:52,447 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:07:52,451 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:07:52,453 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:07:52,456 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:07:52,457 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e513ad4-b35b-4494-9ed5-035f59c8145c/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/ldv-memsafety/memleaks_test7-1.i [2021-10-28 23:07:52,552 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e513ad4-b35b-4494-9ed5-035f59c8145c/bin/uautomizer-GMMbpWq8iD/data/3252d0931/1c91834ebab74a6cb0c1900eedb9a777/FLAG5e778938a [2021-10-28 23:07:53,157 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:07:53,158 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e513ad4-b35b-4494-9ed5-035f59c8145c/sv-benchmarks/c/ldv-memsafety/memleaks_test7-1.i [2021-10-28 23:07:53,177 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e513ad4-b35b-4494-9ed5-035f59c8145c/bin/uautomizer-GMMbpWq8iD/data/3252d0931/1c91834ebab74a6cb0c1900eedb9a777/FLAG5e778938a [2021-10-28 23:07:53,450 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e513ad4-b35b-4494-9ed5-035f59c8145c/bin/uautomizer-GMMbpWq8iD/data/3252d0931/1c91834ebab74a6cb0c1900eedb9a777 [2021-10-28 23:07:53,453 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:07:53,454 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 23:07:53,456 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:07:53,457 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:07:53,473 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:07:53,474 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:07:53" (1/1) ... [2021-10-28 23:07:53,475 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b02e6eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:07:53, skipping insertion in model container [2021-10-28 23:07:53,476 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:07:53" (1/1) ... [2021-10-28 23:07:53,487 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:07:53,551 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:07:54,200 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:07:54,228 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-10-28 23:07:54,229 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3d251ceb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:07:54, skipping insertion in model container [2021-10-28 23:07:54,229 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:07:54,230 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-10-28 23:07:54,233 INFO L168 Benchmark]: Toolchain (without parser) took 776.32 ms. Allocated memory is still 107.0 MB. Free memory was 63.5 MB in the beginning and 77.8 MB in the end (delta: -14.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 16.1 GB. [2021-10-28 23:07:54,234 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 107.0 MB. Free memory is still 81.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:07:54,237 INFO L168 Benchmark]: CACSL2BoogieTranslator took 773.21 ms. Allocated memory is still 107.0 MB. Free memory was 63.2 MB in the beginning and 77.8 MB in the end (delta: -14.5 MB). Peak memory consumption was 4.3 MB. Max. memory is 16.1 GB. [2021-10-28 23:07:54,240 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 107.0 MB. Free memory is still 81.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 773.21 ms. Allocated memory is still 107.0 MB. Free memory was 63.2 MB in the beginning and 77.8 MB in the end (delta: -14.5 MB). Peak memory consumption was 4.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:07:56,877 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:07:56,879 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:07:56,939 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:07:56,940 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:07:56,946 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:07:56,949 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:07:56,957 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:07:56,961 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:07:56,970 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:07:56,972 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:07:56,974 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:07:56,975 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:07:56,978 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:07:56,981 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:07:56,988 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:07:56,989 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:07:56,991 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:07:56,993 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:07:57,002 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:07:57,006 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:07:57,007 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:07:57,011 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:07:57,014 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:07:57,023 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:07:57,023 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:07:57,024 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:07:57,027 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:07:57,027 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:07:57,029 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:07:57,031 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:07:57,032 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:07:57,035 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:07:57,036 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:07:57,038 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:07:57,038 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:07:57,039 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:07:57,040 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:07:57,040 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:07:57,042 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:07:57,043 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:07:57,050 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e513ad4-b35b-4494-9ed5-035f59c8145c/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-28 23:07:57,106 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:07:57,106 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:07:57,107 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:07:57,107 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:07:57,110 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:07:57,110 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:07:57,110 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:07:57,110 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:07:57,111 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:07:57,111 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:07:57,112 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:07:57,113 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:07:57,113 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:07:57,113 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 23:07:57,113 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 23:07:57,113 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 23:07:57,114 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:07:57,114 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 23:07:57,114 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-28 23:07:57,114 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-28 23:07:57,115 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:07:57,115 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:07:57,115 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:07:57,115 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:07:57,116 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:07:57,116 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:07:57,116 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:07:57,116 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:07:57,117 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-28 23:07:57,117 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-28 23:07:57,117 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:07:57,117 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-28 23:07:57,118 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_4e513ad4-b35b-4494-9ed5-035f59c8145c/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e513ad4-b35b-4494-9ed5-035f59c8145c/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c172a69da8014b256a4fe200ae36374b8205f0bb7886b059c874c99d6c4501c [2021-10-28 23:07:57,588 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:07:57,618 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:07:57,623 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:07:57,624 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:07:57,625 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:07:57,629 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e513ad4-b35b-4494-9ed5-035f59c8145c/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/ldv-memsafety/memleaks_test7-1.i [2021-10-28 23:07:57,727 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e513ad4-b35b-4494-9ed5-035f59c8145c/bin/uautomizer-GMMbpWq8iD/data/bfd0252e4/1e59abafde38445dba649f71d0a572cd/FLAGfe6bbd29a [2021-10-28 23:07:58,505 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:07:58,506 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e513ad4-b35b-4494-9ed5-035f59c8145c/sv-benchmarks/c/ldv-memsafety/memleaks_test7-1.i [2021-10-28 23:07:58,541 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e513ad4-b35b-4494-9ed5-035f59c8145c/bin/uautomizer-GMMbpWq8iD/data/bfd0252e4/1e59abafde38445dba649f71d0a572cd/FLAGfe6bbd29a [2021-10-28 23:07:58,727 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e513ad4-b35b-4494-9ed5-035f59c8145c/bin/uautomizer-GMMbpWq8iD/data/bfd0252e4/1e59abafde38445dba649f71d0a572cd [2021-10-28 23:07:58,731 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:07:58,733 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 23:07:58,735 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:07:58,736 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:07:58,740 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:07:58,741 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:07:58" (1/1) ... [2021-10-28 23:07:58,743 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41b93f52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:07:58, skipping insertion in model container [2021-10-28 23:07:58,743 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:07:58" (1/1) ... [2021-10-28 23:07:58,751 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:07:58,801 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:07:59,323 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:07:59,368 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-28 23:07:59,400 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:07:59,480 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:07:59,490 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:07:59,559 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:07:59,643 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:07:59,644 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:07:59 WrapperNode [2021-10-28 23:07:59,644 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:07:59,646 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:07:59,646 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:07:59,646 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:07:59,660 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:07:59" (1/1) ... [2021-10-28 23:07:59,660 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:07:59" (1/1) ... [2021-10-28 23:07:59,688 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:07:59" (1/1) ... [2021-10-28 23:07:59,689 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:07:59" (1/1) ... [2021-10-28 23:07:59,729 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:07:59" (1/1) ... [2021-10-28 23:07:59,738 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:07:59" (1/1) ... [2021-10-28 23:07:59,747 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:07:59" (1/1) ... [2021-10-28 23:07:59,761 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:07:59,762 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:07:59,763 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:07:59,763 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:07:59,764 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:07:59" (1/1) ... [2021-10-28 23:07:59,773 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:07:59,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e513ad4-b35b-4494-9ed5-035f59c8145c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:07:59,805 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e513ad4-b35b-4494-9ed5-035f59c8145c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:07:59,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e513ad4-b35b-4494-9ed5-035f59c8145c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:07:59,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-28 23:07:59,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:07:59,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-10-28 23:07:59,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-10-28 23:07:59,869 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-10-28 23:07:59,872 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-10-28 23:07:59,872 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-10-28 23:07:59,872 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-10-28 23:07:59,873 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-10-28 23:07:59,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-10-28 23:07:59,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-10-28 23:07:59,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-10-28 23:07:59,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-10-28 23:07:59,874 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-10-28 23:07:59,874 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-10-28 23:07:59,875 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-10-28 23:07:59,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-10-28 23:07:59,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-10-28 23:07:59,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-10-28 23:07:59,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-10-28 23:07:59,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-10-28 23:07:59,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-10-28 23:07:59,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-10-28 23:07:59,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-10-28 23:07:59,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-10-28 23:07:59,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-10-28 23:07:59,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-10-28 23:07:59,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-10-28 23:07:59,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-10-28 23:07:59,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-10-28 23:07:59,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-10-28 23:07:59,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-10-28 23:07:59,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-10-28 23:07:59,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-10-28 23:07:59,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-10-28 23:07:59,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-10-28 23:07:59,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-10-28 23:07:59,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-10-28 23:07:59,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-10-28 23:07:59,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-10-28 23:07:59,879 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-10-28 23:07:59,880 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-10-28 23:07:59,880 INFO L138 BoogieDeclarations]: Found implementation of procedure f6 [2021-10-28 23:07:59,881 INFO L138 BoogieDeclarations]: Found implementation of procedure g6 [2021-10-28 23:07:59,881 INFO L138 BoogieDeclarations]: Found implementation of procedure probe1_6 [2021-10-28 23:07:59,881 INFO L138 BoogieDeclarations]: Found implementation of procedure disconnect_2_6 [2021-10-28 23:07:59,882 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-10-28 23:07:59,882 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-28 23:07:59,883 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-10-28 23:07:59,883 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-10-28 23:07:59,883 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-10-28 23:07:59,883 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-10-28 23:07:59,884 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-10-28 23:07:59,884 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-10-28 23:07:59,884 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-10-28 23:07:59,884 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-10-28 23:07:59,884 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-10-28 23:07:59,885 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-10-28 23:07:59,885 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-10-28 23:07:59,886 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-10-28 23:07:59,886 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-10-28 23:07:59,887 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-10-28 23:07:59,888 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-10-28 23:07:59,888 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-10-28 23:07:59,889 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-10-28 23:07:59,889 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-10-28 23:07:59,889 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-10-28 23:07:59,889 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-10-28 23:07:59,890 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-10-28 23:07:59,890 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-10-28 23:07:59,890 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-10-28 23:07:59,890 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-10-28 23:07:59,890 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-10-28 23:07:59,891 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-10-28 23:07:59,891 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-10-28 23:07:59,891 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-10-28 23:07:59,891 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-10-28 23:07:59,891 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-10-28 23:07:59,892 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-10-28 23:07:59,893 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-10-28 23:07:59,893 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-10-28 23:07:59,893 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-10-28 23:07:59,893 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-10-28 23:07:59,893 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-10-28 23:07:59,894 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-10-28 23:07:59,894 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-10-28 23:07:59,894 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-10-28 23:07:59,894 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-10-28 23:07:59,894 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-10-28 23:07:59,895 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-10-28 23:07:59,895 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-10-28 23:07:59,895 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-10-28 23:07:59,895 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-10-28 23:07:59,895 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-10-28 23:07:59,895 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-10-28 23:07:59,896 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-10-28 23:07:59,896 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-10-28 23:07:59,896 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-10-28 23:07:59,897 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-10-28 23:07:59,897 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-10-28 23:07:59,897 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-10-28 23:07:59,897 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-10-28 23:07:59,897 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-10-28 23:07:59,898 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-10-28 23:07:59,898 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-10-28 23:07:59,898 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-10-28 23:07:59,898 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-10-28 23:07:59,898 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-10-28 23:07:59,898 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-10-28 23:07:59,899 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-10-28 23:07:59,899 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-10-28 23:07:59,899 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-10-28 23:07:59,899 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-10-28 23:07:59,900 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-10-28 23:07:59,900 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-28 23:07:59,900 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-10-28 23:07:59,900 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-10-28 23:07:59,900 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-10-28 23:07:59,900 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-10-28 23:07:59,901 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-10-28 23:07:59,901 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-10-28 23:07:59,901 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-10-28 23:07:59,902 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-10-28 23:07:59,903 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-10-28 23:07:59,906 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-10-28 23:07:59,906 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-10-28 23:07:59,907 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-10-28 23:07:59,908 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-10-28 23:07:59,910 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-10-28 23:07:59,910 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-10-28 23:07:59,910 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-10-28 23:07:59,910 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-10-28 23:07:59,912 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-10-28 23:07:59,916 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-10-28 23:07:59,917 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-10-28 23:07:59,917 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-10-28 23:07:59,939 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-10-28 23:07:59,939 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-10-28 23:07:59,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-10-28 23:07:59,940 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-10-28 23:07:59,940 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-10-28 23:07:59,940 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-10-28 23:07:59,940 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-10-28 23:07:59,940 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-10-28 23:07:59,940 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-10-28 23:07:59,941 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-10-28 23:07:59,941 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-10-28 23:07:59,941 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-10-28 23:07:59,941 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-10-28 23:07:59,941 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-10-28 23:07:59,941 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-10-28 23:07:59,942 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-10-28 23:07:59,942 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-10-28 23:07:59,942 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-10-28 23:07:59,942 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-10-28 23:07:59,942 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-10-28 23:07:59,942 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-10-28 23:07:59,943 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-10-28 23:07:59,943 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-10-28 23:07:59,943 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-28 23:07:59,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-10-28 23:07:59,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-10-28 23:07:59,944 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-10-28 23:07:59,944 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-10-28 23:07:59,944 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-10-28 23:07:59,944 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-28 23:07:59,944 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-10-28 23:07:59,944 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-10-28 23:07:59,945 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-10-28 23:07:59,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-28 23:07:59,945 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-10-28 23:07:59,945 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-10-28 23:07:59,945 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-10-28 23:07:59,945 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-28 23:07:59,946 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-10-28 23:07:59,946 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-10-28 23:07:59,946 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-10-28 23:07:59,947 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-10-28 23:07:59,947 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-10-28 23:07:59,947 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-10-28 23:07:59,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 23:07:59,947 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-10-28 23:07:59,947 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-10-28 23:07:59,948 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-10-28 23:07:59,948 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-10-28 23:07:59,948 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-10-28 23:07:59,948 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-28 23:07:59,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-28 23:07:59,948 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-10-28 23:07:59,949 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-10-28 23:07:59,949 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-10-28 23:07:59,949 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-10-28 23:07:59,949 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-10-28 23:07:59,949 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-10-28 23:07:59,949 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-10-28 23:07:59,950 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-10-28 23:07:59,950 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-10-28 23:07:59,950 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-10-28 23:07:59,950 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-10-28 23:07:59,950 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-10-28 23:07:59,951 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-10-28 23:07:59,951 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-10-28 23:07:59,951 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-10-28 23:07:59,951 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-10-28 23:07:59,951 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-10-28 23:07:59,951 INFO L130 BoogieDeclarations]: Found specification of procedure f6 [2021-10-28 23:07:59,952 INFO L130 BoogieDeclarations]: Found specification of procedure g6 [2021-10-28 23:07:59,952 INFO L130 BoogieDeclarations]: Found specification of procedure probe1_6 [2021-10-28 23:07:59,952 INFO L130 BoogieDeclarations]: Found specification of procedure disconnect_2_6 [2021-10-28 23:07:59,952 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-10-28 23:07:59,952 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:07:59,952 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-28 23:07:59,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-28 23:07:59,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-28 23:07:59,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:07:59,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-10-28 23:07:59,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-10-28 23:07:59,953 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-10-28 23:07:59,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-10-28 23:07:59,954 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-10-28 23:08:00,714 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 23:08:01,221 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 23:08:01,755 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:08:01,756 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-10-28 23:08:01,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:08:01 BoogieIcfgContainer [2021-10-28 23:08:01,760 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:08:01,764 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:08:01,764 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:08:01,768 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:08:01,768 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:07:58" (1/3) ... [2021-10-28 23:08:01,769 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bdc4234 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:08:01, skipping insertion in model container [2021-10-28 23:08:01,769 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:07:59" (2/3) ... [2021-10-28 23:08:01,771 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bdc4234 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:08:01, skipping insertion in model container [2021-10-28 23:08:01,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:08:01" (3/3) ... [2021-10-28 23:08:01,774 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test7-1.i [2021-10-28 23:08:01,781 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:08:01,781 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 76 error locations. [2021-10-28 23:08:01,837 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:08:01,845 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 23:08:01,846 INFO L340 AbstractCegarLoop]: Starting to check reachability of 76 error locations. [2021-10-28 23:08:01,867 INFO L276 IsEmpty]: Start isEmpty. Operand has 124 states, 71 states have (on average 1.4647887323943662) internal successors, (104), 95 states have internal predecessors, (104), 15 states have call successors, (15), 14 states have call predecessors, (15), 14 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2021-10-28 23:08:01,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-28 23:08:01,878 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:08:01,879 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:08:01,880 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting probe1_6Err2ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 72 more)] === [2021-10-28 23:08:01,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:08:01,888 INFO L85 PathProgramCache]: Analyzing trace with hash 436226143, now seen corresponding path program 1 times [2021-10-28 23:08:01,903 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:08:01,909 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [788523085] [2021-10-28 23:08:01,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:08:01,912 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:08:01,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e513ad4-b35b-4494-9ed5-035f59c8145c/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:08:01,925 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e513ad4-b35b-4494-9ed5-035f59c8145c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:08:01,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e513ad4-b35b-4494-9ed5-035f59c8145c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-28 23:08:02,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:08:02,188 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:08:02,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:08:02,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:08:02,415 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:08:02,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:08:02,575 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:08:02,580 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [788523085] [2021-10-28 23:08:02,582 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [788523085] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:08:02,582 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:08:02,583 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-28 23:08:02,585 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653373846] [2021-10-28 23:08:02,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:08:02,592 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:08:02,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:08:02,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:08:02,618 INFO L87 Difference]: Start difference. First operand has 124 states, 71 states have (on average 1.4647887323943662) internal successors, (104), 95 states have internal predecessors, (104), 15 states have call successors, (15), 14 states have call predecessors, (15), 14 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-28 23:08:02,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:08:02,688 INFO L93 Difference]: Finished difference Result 53 states and 57 transitions. [2021-10-28 23:08:02,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:08:02,690 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 23 [2021-10-28 23:08:02,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:08:02,705 INFO L225 Difference]: With dead ends: 53 [2021-10-28 23:08:02,705 INFO L226 Difference]: Without dead ends: 50 [2021-10-28 23:08:02,707 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:08:02,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-10-28 23:08:02,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2021-10-28 23:08:02,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 30 states have (on average 1.3) internal successors, (39), 35 states have internal predecessors, (39), 8 states have call successors, (8), 8 states have call predecessors, (8), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-10-28 23:08:02,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 54 transitions. [2021-10-28 23:08:02,760 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 54 transitions. Word has length 23 [2021-10-28 23:08:02,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:08:02,761 INFO L470 AbstractCegarLoop]: Abstraction has 50 states and 54 transitions. [2021-10-28 23:08:02,762 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-28 23:08:02,762 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 54 transitions. [2021-10-28 23:08:02,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-28 23:08:02,765 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:08:02,765 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:08:02,790 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e513ad4-b35b-4494-9ed5-035f59c8145c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-10-28 23:08:02,990 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e513ad4-b35b-4494-9ed5-035f59c8145c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:08:02,990 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting probe1_6Err3ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 72 more)] === [2021-10-28 23:08:02,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:08:02,991 INFO L85 PathProgramCache]: Analyzing trace with hash 638108999, now seen corresponding path program 1 times [2021-10-28 23:08:02,992 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:08:02,992 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1121173193] [2021-10-28 23:08:02,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:08:02,992 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:08:02,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e513ad4-b35b-4494-9ed5-035f59c8145c/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:08:02,994 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e513ad4-b35b-4494-9ed5-035f59c8145c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:08:03,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e513ad4-b35b-4494-9ed5-035f59c8145c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-28 23:08:03,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:08:03,223 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 23:08:03,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:08:03,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:08:03,702 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:08:03,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:08:03,903 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:08:03,903 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1121173193] [2021-10-28 23:08:03,903 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1121173193] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:08:03,903 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:08:03,904 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 4] imperfect sequences [] total 9 [2021-10-28 23:08:03,904 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092705313] [2021-10-28 23:08:03,905 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 23:08:03,906 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:08:03,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 23:08:03,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-10-28 23:08:03,908 INFO L87 Difference]: Start difference. First operand 50 states and 54 transitions. Second operand has 10 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 8 states have internal predecessors, (30), 4 states have call successors, (11), 3 states have call predecessors, (11), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2021-10-28 23:08:04,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:08:04,274 INFO L93 Difference]: Finished difference Result 85 states and 92 transitions. [2021-10-28 23:08:04,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 23:08:04,275 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 8 states have internal predecessors, (30), 4 states have call successors, (11), 3 states have call predecessors, (11), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) Word has length 24 [2021-10-28 23:08:04,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:08:04,277 INFO L225 Difference]: With dead ends: 85 [2021-10-28 23:08:04,277 INFO L226 Difference]: Without dead ends: 85 [2021-10-28 23:08:04,278 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-10-28 23:08:04,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2021-10-28 23:08:04,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 53. [2021-10-28 23:08:04,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 33 states have (on average 1.2424242424242424) internal successors, (41), 37 states have internal predecessors, (41), 8 states have call successors, (8), 8 states have call predecessors, (8), 8 states have return successors, (8), 8 states have call predecessors, (8), 7 states have call successors, (8) [2021-10-28 23:08:04,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 57 transitions. [2021-10-28 23:08:04,290 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 57 transitions. Word has length 24 [2021-10-28 23:08:04,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:08:04,291 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 57 transitions. [2021-10-28 23:08:04,291 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 8 states have internal predecessors, (30), 4 states have call successors, (11), 3 states have call predecessors, (11), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2021-10-28 23:08:04,292 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 57 transitions. [2021-10-28 23:08:04,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-28 23:08:04,293 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:08:04,293 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:08:04,313 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e513ad4-b35b-4494-9ed5-035f59c8145c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-28 23:08:04,513 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e513ad4-b35b-4494-9ed5-035f59c8145c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:08:04,513 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting probe1_6Err4ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 72 more)] === [2021-10-28 23:08:04,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:08:04,514 INFO L85 PathProgramCache]: Analyzing trace with hash -1693457055, now seen corresponding path program 1 times [2021-10-28 23:08:04,515 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:08:04,515 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [369889189] [2021-10-28 23:08:04,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:08:04,516 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:08:04,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e513ad4-b35b-4494-9ed5-035f59c8145c/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:08:04,517 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e513ad4-b35b-4494-9ed5-035f59c8145c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:08:04,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e513ad4-b35b-4494-9ed5-035f59c8145c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-28 23:08:04,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:08:04,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:08:04,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:08:04,806 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-28 23:08:04,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:08:04,962 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:08:05,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:08:05,134 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:08:05,134 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [369889189] [2021-10-28 23:08:05,134 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [369889189] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:08:05,134 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:08:05,135 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 5 [2021-10-28 23:08:05,135 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355810826] [2021-10-28 23:08:05,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 23:08:05,136 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:08:05,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:08:05,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:08:05,140 INFO L87 Difference]: Start difference. First operand 53 states and 57 transitions. Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-28 23:08:05,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:08:05,356 INFO L93 Difference]: Finished difference Result 77 states and 86 transitions. [2021-10-28 23:08:05,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 23:08:05,357 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 25 [2021-10-28 23:08:05,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:08:05,360 INFO L225 Difference]: With dead ends: 77 [2021-10-28 23:08:05,360 INFO L226 Difference]: Without dead ends: 77 [2021-10-28 23:08:05,361 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 42 SyntacticMatches, 3 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:08:05,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2021-10-28 23:08:05,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 62. [2021-10-28 23:08:05,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 40 states have (on average 1.25) internal successors, (50), 44 states have internal predecessors, (50), 10 states have call successors, (10), 8 states have call predecessors, (10), 8 states have return successors, (10), 10 states have call predecessors, (10), 9 states have call successors, (10) [2021-10-28 23:08:05,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 70 transitions. [2021-10-28 23:08:05,374 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 70 transitions. Word has length 25 [2021-10-28 23:08:05,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:08:05,376 INFO L470 AbstractCegarLoop]: Abstraction has 62 states and 70 transitions. [2021-10-28 23:08:05,377 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-28 23:08:05,377 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 70 transitions. [2021-10-28 23:08:05,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-28 23:08:05,379 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:08:05,379 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:08:05,392 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e513ad4-b35b-4494-9ed5-035f59c8145c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-28 23:08:05,591 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e513ad4-b35b-4494-9ed5-035f59c8145c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:08:05,591 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 72 more)] === [2021-10-28 23:08:05,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:08:05,592 INFO L85 PathProgramCache]: Analyzing trace with hash -2073787341, now seen corresponding path program 1 times [2021-10-28 23:08:05,592 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:08:05,592 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [543968560] [2021-10-28 23:08:05,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:08:05,593 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:08:05,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e513ad4-b35b-4494-9ed5-035f59c8145c/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:08:05,594 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e513ad4-b35b-4494-9ed5-035f59c8145c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:08:05,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e513ad4-b35b-4494-9ed5-035f59c8145c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-28 23:08:05,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:08:05,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-28 23:08:05,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:08:06,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:08:06,051 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:08:10,295 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_4| (Array (_ BitVec 32) (_ BitVec 1)))) (or (exists ((|v_entry_point_~#a7~0.base_13| (_ BitVec 32))) (and (not (= |v_old(#valid)_BEFORE_CALL_4| (store |c_old(#valid)| |v_entry_point_~#a7~0.base_13| (_ bv0 1)))) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_old(#valid)| |v_entry_point_~#a7~0.base_13|))))))))))) (= |v_old(#valid)_BEFORE_CALL_4| |c_#valid|))) is different from false [2021-10-28 23:08:10,468 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_4| (Array (_ BitVec 32) (_ BitVec 1)))) (or (exists ((|v_entry_point_~#a7~0.base_13| (_ BitVec 32))) (and (not (= |v_old(#valid)_BEFORE_CALL_4| (store |c_old(#valid)| |v_entry_point_~#a7~0.base_13| (_ bv0 1)))) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_old(#valid)| |v_entry_point_~#a7~0.base_13|))))))))))) (= |v_old(#valid)_BEFORE_CALL_4| (store |c_#valid| |c_entry_point_~#a7~0.base| (_ bv0 1))))) is different from false [2021-10-28 23:08:11,008 INFO L354 Elim1Store]: treesize reduction 16, result has 78.1 percent of original size [2021-10-28 23:08:11,009 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 70 treesize of output 117 [2021-10-28 23:08:11,716 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-28 23:08:11,717 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 33 [2021-10-28 23:08:11,911 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_4| (Array (_ BitVec 32) (_ BitVec 1))) (|v_entry_point_~#a7~0.base_16| (_ BitVec 32))) (or (exists ((|v_entry_point_~#a7~0.base_13| (_ BitVec 32))) (and (not (= |v_old(#valid)_BEFORE_CALL_4| (store |c_old(#valid)| |v_entry_point_~#a7~0.base_13| (_ bv0 1)))) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_old(#valid)| |v_entry_point_~#a7~0.base_13|))))))))))) (= (store |c_#valid| |v_entry_point_~#a7~0.base_16| (_ bv0 1)) |v_old(#valid)_BEFORE_CALL_4|) (not (= (_ bv0 1) (bvneg (bvneg (select |c_#valid| |v_entry_point_~#a7~0.base_16|))))))) is different from false [2021-10-28 23:08:11,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:08:11,940 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:08:11,941 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [543968560] [2021-10-28 23:08:11,941 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [543968560] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:08:11,945 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:08:11,945 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 6] imperfect sequences [] total 8 [2021-10-28 23:08:11,946 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075433599] [2021-10-28 23:08:11,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 23:08:11,946 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:08:11,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 23:08:11,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=19, Unknown=5, NotChecked=30, Total=72 [2021-10-28 23:08:11,949 INFO L87 Difference]: Start difference. First operand 62 states and 70 transitions. Second operand has 9 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 5 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2021-10-28 23:08:30,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:08:30,327 INFO L93 Difference]: Finished difference Result 79 states and 87 transitions. [2021-10-28 23:08:30,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 23:08:30,328 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 5 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) Word has length 24 [2021-10-28 23:08:30,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:08:30,329 INFO L225 Difference]: With dead ends: 79 [2021-10-28 23:08:30,329 INFO L226 Difference]: Without dead ends: 65 [2021-10-28 23:08:30,330 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 39 SyntacticMatches, 3 SemanticMatches, 8 ConstructedPredicates, 3 IntricatePredicates, 1 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=24, Invalid=23, Unknown=7, NotChecked=36, Total=90 [2021-10-28 23:08:30,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2021-10-28 23:08:30,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 63. [2021-10-28 23:08:30,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 41 states have (on average 1.2195121951219512) internal successors, (50), 44 states have internal predecessors, (50), 10 states have call successors, (10), 8 states have call predecessors, (10), 8 states have return successors, (10), 10 states have call predecessors, (10), 9 states have call successors, (10) [2021-10-28 23:08:30,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 70 transitions. [2021-10-28 23:08:30,338 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 70 transitions. Word has length 24 [2021-10-28 23:08:30,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:08:30,339 INFO L470 AbstractCegarLoop]: Abstraction has 63 states and 70 transitions. [2021-10-28 23:08:30,339 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 5 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2021-10-28 23:08:30,340 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 70 transitions. [2021-10-28 23:08:30,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-28 23:08:30,341 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:08:30,341 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:08:30,350 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e513ad4-b35b-4494-9ed5-035f59c8145c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-28 23:08:30,541 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e513ad4-b35b-4494-9ed5-035f59c8145c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:08:30,542 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting probe1_6Err4ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 72 more)] === [2021-10-28 23:08:30,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:08:30,542 INFO L85 PathProgramCache]: Analyzing trace with hash 2095951616, now seen corresponding path program 1 times [2021-10-28 23:08:30,542 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:08:30,543 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2095411669] [2021-10-28 23:08:30,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:08:30,543 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:08:30,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e513ad4-b35b-4494-9ed5-035f59c8145c/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:08:30,544 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e513ad4-b35b-4494-9ed5-035f59c8145c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:08:30,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e513ad4-b35b-4494-9ed5-035f59c8145c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-28 23:08:30,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:08:30,830 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 23:08:30,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:08:30,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:08:30,974 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:08:31,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:08:31,133 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:08:31,133 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2095411669] [2021-10-28 23:08:31,133 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2095411669] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:08:31,133 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:08:31,134 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-28 23:08:31,134 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220337635] [2021-10-28 23:08:31,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:08:31,134 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:08:31,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:08:31,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:08:31,135 INFO L87 Difference]: Start difference. First operand 63 states and 70 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-28 23:08:31,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:08:31,167 INFO L93 Difference]: Finished difference Result 52 states and 53 transitions. [2021-10-28 23:08:31,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:08:31,169 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 25 [2021-10-28 23:08:31,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:08:31,170 INFO L225 Difference]: With dead ends: 52 [2021-10-28 23:08:31,170 INFO L226 Difference]: Without dead ends: 48 [2021-10-28 23:08:31,171 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:08:31,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2021-10-28 23:08:31,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2021-10-28 23:08:31,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 30 states have (on average 1.1333333333333333) internal successors, (34), 32 states have internal predecessors, (34), 8 states have call successors, (8), 8 states have call predecessors, (8), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-10-28 23:08:31,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 49 transitions. [2021-10-28 23:08:31,176 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 49 transitions. Word has length 25 [2021-10-28 23:08:31,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:08:31,176 INFO L470 AbstractCegarLoop]: Abstraction has 48 states and 49 transitions. [2021-10-28 23:08:31,177 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-28 23:08:31,177 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 49 transitions. [2021-10-28 23:08:31,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-28 23:08:31,178 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:08:31,178 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:08:31,197 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e513ad4-b35b-4494-9ed5-035f59c8145c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-28 23:08:31,391 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e513ad4-b35b-4494-9ed5-035f59c8145c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:08:31,391 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting probe1_6Err0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 72 more)] === [2021-10-28 23:08:31,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:08:31,391 INFO L85 PathProgramCache]: Analyzing trace with hash -1373990059, now seen corresponding path program 1 times [2021-10-28 23:08:31,392 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:08:31,392 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [142866310] [2021-10-28 23:08:31,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:08:31,392 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:08:31,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e513ad4-b35b-4494-9ed5-035f59c8145c/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:08:31,393 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e513ad4-b35b-4494-9ed5-035f59c8145c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:08:31,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e513ad4-b35b-4494-9ed5-035f59c8145c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-28 23:08:31,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:08:31,674 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-28 23:08:31,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:08:31,699 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-28 23:08:31,857 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-10-28 23:08:31,858 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 20 [2021-10-28 23:08:32,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:08:32,069 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:08:32,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:08:32,385 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:08:32,385 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [142866310] [2021-10-28 23:08:32,385 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [142866310] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:08:32,385 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:08:32,385 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 5] imperfect sequences [] total 8 [2021-10-28 23:08:32,386 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464925154] [2021-10-28 23:08:32,386 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 23:08:32,386 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:08:32,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 23:08:32,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-10-28 23:08:32,387 INFO L87 Difference]: Start difference. First operand 48 states and 49 transitions. Second operand has 9 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 3 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-10-28 23:08:32,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:08:32,881 INFO L93 Difference]: Finished difference Result 56 states and 57 transitions. [2021-10-28 23:08:32,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 23:08:32,882 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 3 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 29 [2021-10-28 23:08:32,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:08:32,883 INFO L225 Difference]: With dead ends: 56 [2021-10-28 23:08:32,883 INFO L226 Difference]: Without dead ends: 56 [2021-10-28 23:08:32,884 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 45 SyntacticMatches, 6 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2021-10-28 23:08:32,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2021-10-28 23:08:32,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 47. [2021-10-28 23:08:32,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 30 states have (on average 1.1) internal successors, (33), 31 states have internal predecessors, (33), 8 states have call successors, (8), 8 states have call predecessors, (8), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-10-28 23:08:32,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 48 transitions. [2021-10-28 23:08:32,890 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 48 transitions. Word has length 29 [2021-10-28 23:08:32,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:08:32,891 INFO L470 AbstractCegarLoop]: Abstraction has 47 states and 48 transitions. [2021-10-28 23:08:32,891 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 3 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-10-28 23:08:32,891 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 48 transitions. [2021-10-28 23:08:32,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-28 23:08:32,893 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:08:32,893 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:08:32,912 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e513ad4-b35b-4494-9ed5-035f59c8145c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-28 23:08:33,093 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e513ad4-b35b-4494-9ed5-035f59c8145c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:08:33,094 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting probe1_6Err1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 72 more)] === [2021-10-28 23:08:33,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:08:33,094 INFO L85 PathProgramCache]: Analyzing trace with hash -1373990058, now seen corresponding path program 1 times [2021-10-28 23:08:33,095 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:08:33,095 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1811886007] [2021-10-28 23:08:33,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:08:33,095 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:08:33,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e513ad4-b35b-4494-9ed5-035f59c8145c/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:08:33,097 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e513ad4-b35b-4494-9ed5-035f59c8145c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:08:33,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e513ad4-b35b-4494-9ed5-035f59c8145c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-28 23:08:33,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:08:33,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-28 23:08:33,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:08:33,353 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-28 23:08:37,615 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-10-28 23:08:37,615 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2021-10-28 23:08:37,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:08:37,869 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:08:39,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:08:39,905 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:08:39,905 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1811886007] [2021-10-28 23:08:39,905 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1811886007] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:08:39,905 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:08:39,906 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 7] imperfect sequences [] total 14 [2021-10-28 23:08:39,906 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819598140] [2021-10-28 23:08:39,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-28 23:08:39,906 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:08:39,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-28 23:08:39,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=167, Unknown=2, NotChecked=0, Total=210 [2021-10-28 23:08:39,907 INFO L87 Difference]: Start difference. First operand 47 states and 48 transitions. Second operand has 15 states, 11 states have (on average 3.090909090909091) internal successors, (34), 12 states have internal predecessors, (34), 6 states have call successors, (11), 6 states have call predecessors, (11), 4 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2021-10-28 23:08:51,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:08:51,133 INFO L93 Difference]: Finished difference Result 46 states and 47 transitions. [2021-10-28 23:08:51,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-28 23:08:51,135 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 11 states have (on average 3.090909090909091) internal successors, (34), 12 states have internal predecessors, (34), 6 states have call successors, (11), 6 states have call predecessors, (11), 4 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) Word has length 29 [2021-10-28 23:08:51,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:08:51,136 INFO L225 Difference]: With dead ends: 46 [2021-10-28 23:08:51,136 INFO L226 Difference]: Without dead ends: 46 [2021-10-28 23:08:51,137 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 40 SyntacticMatches, 5 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=105, Invalid=399, Unknown=2, NotChecked=0, Total=506 [2021-10-28 23:08:51,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-10-28 23:08:51,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2021-10-28 23:08:51,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 30 states have (on average 1.0666666666666667) internal successors, (32), 30 states have internal predecessors, (32), 8 states have call successors, (8), 8 states have call predecessors, (8), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-10-28 23:08:51,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 47 transitions. [2021-10-28 23:08:51,142 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 47 transitions. Word has length 29 [2021-10-28 23:08:51,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:08:51,143 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 47 transitions. [2021-10-28 23:08:51,143 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 11 states have (on average 3.090909090909091) internal successors, (34), 12 states have internal predecessors, (34), 6 states have call successors, (11), 6 states have call predecessors, (11), 4 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2021-10-28 23:08:51,143 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 47 transitions. [2021-10-28 23:08:51,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-10-28 23:08:51,145 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:08:51,145 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:08:51,155 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e513ad4-b35b-4494-9ed5-035f59c8145c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-28 23:08:51,346 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e513ad4-b35b-4494-9ed5-035f59c8145c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:08:51,346 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 72 more)] === [2021-10-28 23:08:51,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:08:51,347 INFO L85 PathProgramCache]: Analyzing trace with hash 502378319, now seen corresponding path program 1 times [2021-10-28 23:08:51,347 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:08:51,347 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1063070068] [2021-10-28 23:08:51,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:08:51,348 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:08:51,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e513ad4-b35b-4494-9ed5-035f59c8145c/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:08:51,349 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e513ad4-b35b-4494-9ed5-035f59c8145c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:08:51,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e513ad4-b35b-4494-9ed5-035f59c8145c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-28 23:08:51,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:08:51,643 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 23:08:51,645 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:08:51,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:08:51,771 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:08:52,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:08:52,007 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:08:52,007 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1063070068] [2021-10-28 23:08:52,007 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1063070068] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:08:52,007 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:08:52,007 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-10-28 23:08:52,008 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201582850] [2021-10-28 23:08:52,008 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 23:08:52,008 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:08:52,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 23:08:52,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-10-28 23:08:52,009 INFO L87 Difference]: Start difference. First operand 46 states and 47 transitions. Second operand has 10 states, 10 states have (on average 3.3) internal successors, (33), 8 states have internal predecessors, (33), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) [2021-10-28 23:08:52,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:08:52,058 INFO L93 Difference]: Finished difference Result 50 states and 50 transitions. [2021-10-28 23:08:52,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 23:08:52,059 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.3) internal successors, (33), 8 states have internal predecessors, (33), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) Word has length 37 [2021-10-28 23:08:52,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:08:52,060 INFO L225 Difference]: With dead ends: 50 [2021-10-28 23:08:52,060 INFO L226 Difference]: Without dead ends: 43 [2021-10-28 23:08:52,060 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-10-28 23:08:52,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-10-28 23:08:52,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2021-10-28 23:08:52,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 27 states have (on average 1.0) internal successors, (27), 27 states have internal predecessors, (27), 8 states have call successors, (8), 8 states have call predecessors, (8), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-10-28 23:08:52,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 42 transitions. [2021-10-28 23:08:52,066 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 42 transitions. Word has length 37 [2021-10-28 23:08:52,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:08:52,066 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 42 transitions. [2021-10-28 23:08:52,066 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.3) internal successors, (33), 8 states have internal predecessors, (33), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) [2021-10-28 23:08:52,067 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 42 transitions. [2021-10-28 23:08:52,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-10-28 23:08:52,068 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:08:52,069 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:08:52,086 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e513ad4-b35b-4494-9ed5-035f59c8145c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-28 23:08:52,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e513ad4-b35b-4494-9ed5-035f59c8145c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:08:52,286 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 72 more)] === [2021-10-28 23:08:52,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:08:52,286 INFO L85 PathProgramCache]: Analyzing trace with hash 1897000381, now seen corresponding path program 1 times [2021-10-28 23:08:52,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:08:52,287 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1332760563] [2021-10-28 23:08:52,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:08:52,287 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:08:52,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e513ad4-b35b-4494-9ed5-035f59c8145c/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:08:52,288 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e513ad4-b35b-4494-9ed5-035f59c8145c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:08:52,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e513ad4-b35b-4494-9ed5-035f59c8145c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-28 23:08:52,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:08:52,574 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:08:52,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:08:52,704 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-10-28 23:08:52,704 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 23:08:52,705 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-10-28 23:08:52,708 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION [2021-10-28 23:08:52,708 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION [2021-10-28 23:08:52,708 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION [2021-10-28 23:08:52,708 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION [2021-10-28 23:08:52,709 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION [2021-10-28 23:08:52,709 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION [2021-10-28 23:08:52,709 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION [2021-10-28 23:08:52,709 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION [2021-10-28 23:08:52,710 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION [2021-10-28 23:08:52,710 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION [2021-10-28 23:08:52,710 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION [2021-10-28 23:08:52,710 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION [2021-10-28 23:08:52,710 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION [2021-10-28 23:08:52,711 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION [2021-10-28 23:08:52,711 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION [2021-10-28 23:08:52,711 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION [2021-10-28 23:08:52,711 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION [2021-10-28 23:08:52,711 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION [2021-10-28 23:08:52,712 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION [2021-10-28 23:08:52,712 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION [2021-10-28 23:08:52,712 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION [2021-10-28 23:08:52,712 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION [2021-10-28 23:08:52,713 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION [2021-10-28 23:08:52,713 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION [2021-10-28 23:08:52,713 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION [2021-10-28 23:08:52,713 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION [2021-10-28 23:08:52,713 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION [2021-10-28 23:08:52,714 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION [2021-10-28 23:08:52,714 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION [2021-10-28 23:08:52,714 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION [2021-10-28 23:08:52,714 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION [2021-10-28 23:08:52,714 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION [2021-10-28 23:08:52,715 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION [2021-10-28 23:08:52,715 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION [2021-10-28 23:08:52,715 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION [2021-10-28 23:08:52,715 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION [2021-10-28 23:08:52,715 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION [2021-10-28 23:08:52,716 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION [2021-10-28 23:08:52,716 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION [2021-10-28 23:08:52,716 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION [2021-10-28 23:08:52,716 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION [2021-10-28 23:08:52,716 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION [2021-10-28 23:08:52,717 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:08:52,717 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:08:52,717 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:08:52,717 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:08:52,718 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:08:52,718 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:08:52,718 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION [2021-10-28 23:08:52,718 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION [2021-10-28 23:08:52,718 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION [2021-10-28 23:08:52,719 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION [2021-10-28 23:08:52,719 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION [2021-10-28 23:08:52,719 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION [2021-10-28 23:08:52,719 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION [2021-10-28 23:08:52,719 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION [2021-10-28 23:08:52,720 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:08:52,720 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:08:52,720 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:08:52,720 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:08:52,720 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:08:52,721 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:08:52,721 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION [2021-10-28 23:08:52,721 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION [2021-10-28 23:08:52,721 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION [2021-10-28 23:08:52,721 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION [2021-10-28 23:08:52,722 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION [2021-10-28 23:08:52,722 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION [2021-10-28 23:08:52,722 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION [2021-10-28 23:08:52,722 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION [2021-10-28 23:08:52,722 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe1_6Err0REQUIRES_VIOLATION [2021-10-28 23:08:52,723 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe1_6Err1REQUIRES_VIOLATION [2021-10-28 23:08:52,723 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe1_6Err2ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:08:52,723 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe1_6Err3ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:08:52,723 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe1_6Err4ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:08:52,744 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e513ad4-b35b-4494-9ed5-035f59c8145c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2021-10-28 23:08:52,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e513ad4-b35b-4494-9ed5-035f59c8145c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:08:52,944 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:08:52,947 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:08:52,961 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-10-28 23:08:52,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:08:52 BoogieIcfgContainer [2021-10-28 23:08:52,995 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:08:52,996 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:08:52,996 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:08:52,996 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:08:52,999 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:08:01" (3/4) ... [2021-10-28 23:08:53,003 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 23:08:53,003 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:08:53,004 INFO L168 Benchmark]: Toolchain (without parser) took 54271.03 ms. Allocated memory was 52.4 MB in the beginning and 107.0 MB in the end (delta: 54.5 MB). Free memory was 27.1 MB in the beginning and 70.0 MB in the end (delta: -42.9 MB). Peak memory consumption was 10.7 MB. Max. memory is 16.1 GB. [2021-10-28 23:08:53,005 INFO L168 Benchmark]: CDTParser took 0.44 ms. Allocated memory is still 52.4 MB. Free memory is still 33.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:08:53,006 INFO L168 Benchmark]: CACSL2BoogieTranslator took 909.30 ms. Allocated memory was 52.4 MB in the beginning and 67.1 MB in the end (delta: 14.7 MB). Free memory was 26.9 MB in the beginning and 43.8 MB in the end (delta: -16.9 MB). Peak memory consumption was 9.7 MB. Max. memory is 16.1 GB. [2021-10-28 23:08:53,006 INFO L168 Benchmark]: Boogie Preprocessor took 115.98 ms. Allocated memory is still 67.1 MB. Free memory was 43.8 MB in the beginning and 39.0 MB in the end (delta: 4.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-28 23:08:53,007 INFO L168 Benchmark]: RCFGBuilder took 1998.04 ms. Allocated memory was 67.1 MB in the beginning and 88.1 MB in the end (delta: 21.0 MB). Free memory was 39.0 MB in the beginning and 58.2 MB in the end (delta: -19.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-28 23:08:53,007 INFO L168 Benchmark]: TraceAbstraction took 51232.01 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 57.8 MB in the beginning and 70.9 MB in the end (delta: -13.2 MB). Peak memory consumption was 49.0 MB. Max. memory is 16.1 GB. [2021-10-28 23:08:53,008 INFO L168 Benchmark]: Witness Printer took 7.34 ms. Allocated memory is still 107.0 MB. Free memory was 70.9 MB in the beginning and 70.0 MB in the end (delta: 898.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:08:53,010 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44 ms. Allocated memory is still 52.4 MB. Free memory is still 33.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 909.30 ms. Allocated memory was 52.4 MB in the beginning and 67.1 MB in the end (delta: 14.7 MB). Free memory was 26.9 MB in the beginning and 43.8 MB in the end (delta: -16.9 MB). Peak memory consumption was 9.7 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 115.98 ms. Allocated memory is still 67.1 MB. Free memory was 43.8 MB in the beginning and 39.0 MB in the end (delta: 4.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1998.04 ms. Allocated memory was 67.1 MB in the beginning and 88.1 MB in the end (delta: 21.0 MB). Free memory was 39.0 MB in the beginning and 58.2 MB in the end (delta: -19.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 51232.01 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 57.8 MB in the beginning and 70.9 MB in the end (delta: -13.2 MB). Peak memory consumption was 49.0 MB. Max. memory is 16.1 GB. * Witness Printer took 7.34 ms. Allocated memory is still 107.0 MB. Free memory was 70.9 MB in the beginning and 70.0 MB in the end (delta: 898.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 789]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 789. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; VAL [\old(ldv_global_msg_list)=null, \old(ldv_global_msg_list)=null, ldv_global_msg_list={-2147483648:0}] [L790] CALL entry_point() VAL [ldv_global_msg_list={-2147483648:0}] [L783] struct A a7; VAL [a7={3:0}, ldv_global_msg_list={-2147483648:0}] [L784] CALL, EXPR probe1_6(&a7) VAL [a={3:0}, ldv_global_msg_list={-2147483648:0}] [L764] int ret = - -3; VAL [a={3:0}, a={3:0}, ldv_global_msg_list={-2147483648:0}, ret=3] [L765] CALL, EXPR ldv_malloc(sizeof(int)) VAL [\old(size)=4, ldv_global_msg_list={-2147483648:0}] [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L765] RET, EXPR ldv_malloc(sizeof(int)) VAL [a={3:0}, a={3:0}, ldv_global_msg_list={-2147483648:0}, ldv_malloc(sizeof(int))={1:0}, ret=3] [L765] int *p = (int *)ldv_malloc(sizeof(int)); [L766] COND FALSE !(p==0) VAL [a={3:0}, a={3:0}, ldv_global_msg_list={-2147483648:0}, p={1:0}, ret=3] [L768] CALL, EXPR f6() VAL [ldv_global_msg_list={-2147483648:0}] [L758] return __VERIFIER_nondet_int(); [L768] RET, EXPR f6() VAL [a={3:0}, a={3:0}, f6()=0, ldv_global_msg_list={-2147483648:0}, p={1:0}, ret=3] [L768] ret = f6() [L769] COND FALSE !(ret<0) VAL [a={3:0}, a={3:0}, ldv_global_msg_list={-2147483648:0}, p={1:0}, ret=0] [L771] CALL, EXPR g6() VAL [ldv_global_msg_list={-2147483648:0}] [L761] return __VERIFIER_nondet_int(); [L771] RET, EXPR g6() VAL [a={3:0}, a={3:0}, g6()=0, ldv_global_msg_list={-2147483648:0}, p={1:0}, ret=0] [L771] ret = g6() [L772] COND FALSE !(ret<0) VAL [a={3:0}, a={3:0}, ldv_global_msg_list={-2147483648:0}, p={1:0}, ret=0] [L774] a->p = p VAL [a={3:0}, a={3:0}, ldv_global_msg_list={-2147483648:0}, p={1:0}, ret=0] [L775] return 0; VAL [\result=0, a={3:0}, a={3:0}, ldv_global_msg_list={-2147483648:0}, p={1:0}, ret=0] [L784] RET, EXPR probe1_6(&a7) VAL [a7={3:0}, ldv_global_msg_list={-2147483648:0}, probe1_6(&a7)=0] [L784] int ret = probe1_6(&a7); [L785] COND TRUE ret==0 VAL [a7={3:0}, ldv_global_msg_list={-2147483648:0}, ret=0] [L786] FCALL disconnect_2_6(&a7) VAL [a7={3:0}, ldv_global_msg_list={-2147483648:0}, ret=0] [L790] RET entry_point() VAL [ldv_global_msg_list={-2147483648:0}] - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 774]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 774]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 777]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 777]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 777]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 51 procedures, 364 locations, 76 error locations. Started 1 CEGAR loops. OverallTime: 51.1s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 30.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 388 SDtfs, 375 SDslu, 1091 SDs, 0 SdLazy, 686 SolverSat, 109 SolverUnsat, 10 SolverUnknown, 0 SolverNotchecked, 24.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 444 GetRequests, 357 SyntacticMatches, 18 SemanticMatches, 69 ConstructedPredicates, 3 IntricatePredicates, 1 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 16.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=124occurred in iteration=0, InterpolantAutomatonStates: 66, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 58 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 15.5s InterpolantComputationTime, 258 NumberOfCodeBlocks, 258 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 416 ConstructedInterpolants, 44 QuantifiedInterpolants, 1932 SizeOfPredicates, 13 NumberOfNonLiveVariables, 868 ConjunctsInSsa, 61 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-28 23:08:53,057 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e513ad4-b35b-4494-9ed5-035f59c8145c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...