./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test20-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7f7e5f-0055-4454-9679-5cf3200e612e/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7f7e5f-0055-4454-9679-5cf3200e612e/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_fa7f7e5f-0055-4454-9679-5cf3200e612e/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7f7e5f-0055-4454-9679-5cf3200e612e/bin/uautomizer-GMMbpWq8iD/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test20-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7f7e5f-0055-4454-9679-5cf3200e612e/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_fa7f7e5f-0055-4454-9679-5cf3200e612e/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 c03aa9fd4feebd47970076773e3fcb11c7b82646fa9d57d8ea4dde0614545dfa ................................................................................................................................... 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_fa7f7e5f-0055-4454-9679-5cf3200e612e/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7f7e5f-0055-4454-9679-5cf3200e612e/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_fa7f7e5f-0055-4454-9679-5cf3200e612e/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7f7e5f-0055-4454-9679-5cf3200e612e/bin/uautomizer-GMMbpWq8iD/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test20-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7f7e5f-0055-4454-9679-5cf3200e612e/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_fa7f7e5f-0055-4454-9679-5cf3200e612e/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 c03aa9fd4feebd47970076773e3fcb11c7b82646fa9d57d8ea4dde0614545dfa ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:31:14,961 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:31:14,963 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:31:15,010 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:31:15,010 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:31:15,015 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:31:15,017 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:31:15,021 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:31:15,024 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:31:15,029 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:31:15,031 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:31:15,032 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:31:15,033 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:31:15,036 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:31:15,038 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:31:15,043 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:31:15,044 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:31:15,046 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:31:15,048 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:31:15,055 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:31:15,057 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:31:15,059 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:31:15,062 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:31:15,063 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:31:15,072 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:31:15,073 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:31:15,073 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:31:15,075 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:31:15,076 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:31:15,077 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:31:15,078 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:31:15,079 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:31:15,081 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:31:15,082 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:31:15,084 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:31:15,084 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:31:15,085 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:31:15,085 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:31:15,085 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:31:15,086 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:31:15,087 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:31:15,088 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7f7e5f-0055-4454-9679-5cf3200e612e/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-10-28 23:31:15,133 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:31:15,133 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:31:15,134 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:31:15,134 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:31:15,142 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:31:15,142 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:31:15,142 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:31:15,143 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:31:15,143 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:31:15,143 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:31:15,144 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:31:15,144 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:31:15,144 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:31:15,145 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 23:31:15,145 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 23:31:15,145 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 23:31:15,145 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:31:15,145 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 23:31:15,145 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:31:15,146 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:31:15,146 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:31:15,146 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:31:15,146 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:31:15,146 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:31:15,147 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:31:15,147 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:31:15,147 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:31:15,147 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 23:31:15,147 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:31:15,149 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_fa7f7e5f-0055-4454-9679-5cf3200e612e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7f7e5f-0055-4454-9679-5cf3200e612e/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c03aa9fd4feebd47970076773e3fcb11c7b82646fa9d57d8ea4dde0614545dfa [2021-10-28 23:31:15,413 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:31:15,435 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:31:15,437 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:31:15,439 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:31:15,439 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:31:15,440 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7f7e5f-0055-4454-9679-5cf3200e612e/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/ldv-memsafety/memleaks_test20-2.i [2021-10-28 23:31:15,516 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7f7e5f-0055-4454-9679-5cf3200e612e/bin/uautomizer-GMMbpWq8iD/data/83083f4c8/d98209383dbc4b5f85dce8bf573fe51e/FLAGac353156c [2021-10-28 23:31:16,125 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:31:16,126 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7f7e5f-0055-4454-9679-5cf3200e612e/sv-benchmarks/c/ldv-memsafety/memleaks_test20-2.i [2021-10-28 23:31:16,143 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7f7e5f-0055-4454-9679-5cf3200e612e/bin/uautomizer-GMMbpWq8iD/data/83083f4c8/d98209383dbc4b5f85dce8bf573fe51e/FLAGac353156c [2021-10-28 23:31:16,371 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7f7e5f-0055-4454-9679-5cf3200e612e/bin/uautomizer-GMMbpWq8iD/data/83083f4c8/d98209383dbc4b5f85dce8bf573fe51e [2021-10-28 23:31:16,374 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:31:16,376 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 23:31:16,381 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:31:16,381 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:31:16,384 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:31:16,385 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:31:16" (1/1) ... [2021-10-28 23:31:16,386 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b26487e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:31:16, skipping insertion in model container [2021-10-28 23:31:16,386 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:31:16" (1/1) ... [2021-10-28 23:31:16,394 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:31:16,465 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:31:16,853 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:31:16,884 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 23:31:16,884 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@505591b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:31:16, skipping insertion in model container [2021-10-28 23:31:16,885 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:31:16,886 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-10-28 23:31:16,888 INFO L168 Benchmark]: Toolchain (without parser) took 510.35 ms. Allocated memory is still 123.7 MB. Free memory was 88.9 MB in the beginning and 93.8 MB in the end (delta: -5.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-28 23:31:16,889 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 88.1 MB. Free memory is still 44.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:31:16,891 INFO L168 Benchmark]: CACSL2BoogieTranslator took 504.97 ms. Allocated memory is still 123.7 MB. Free memory was 88.6 MB in the beginning and 93.8 MB in the end (delta: -5.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-28 23:31:16,893 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 88.1 MB. Free memory is still 44.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 504.97 ms. Allocated memory is still 123.7 MB. Free memory was 88.6 MB in the beginning and 93.8 MB in the end (delta: -5.2 MB). Peak memory consumption was 6.3 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 23:31:19,160 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:31:19,162 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:31:19,196 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:31:19,196 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:31:19,198 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:31:19,200 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:31:19,202 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:31:19,205 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:31:19,206 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:31:19,207 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:31:19,209 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:31:19,210 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:31:19,211 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:31:19,213 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:31:19,217 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:31:19,221 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:31:19,224 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:31:19,226 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:31:19,231 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:31:19,236 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:31:19,238 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:31:19,239 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:31:19,242 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:31:19,247 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:31:19,249 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:31:19,249 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:31:19,254 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:31:19,258 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:31:19,259 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:31:19,260 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:31:19,262 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:31:19,264 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:31:19,265 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:31:19,267 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:31:19,267 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:31:19,268 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:31:19,269 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:31:19,269 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:31:19,271 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:31:19,272 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:31:19,278 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7f7e5f-0055-4454-9679-5cf3200e612e/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-28 23:31:19,326 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:31:19,326 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:31:19,327 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:31:19,327 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:31:19,330 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:31:19,330 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:31:19,330 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:31:19,331 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:31:19,331 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:31:19,331 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:31:19,332 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:31:19,333 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:31:19,333 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:31:19,333 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 23:31:19,334 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 23:31:19,334 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 23:31:19,334 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:31:19,334 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 23:31:19,335 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-28 23:31:19,335 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-28 23:31:19,335 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:31:19,335 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:31:19,336 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:31:19,336 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:31:19,336 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:31:19,336 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:31:19,337 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:31:19,337 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:31:19,337 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-28 23:31:19,337 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-28 23:31:19,338 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:31:19,338 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-28 23:31:19,338 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_fa7f7e5f-0055-4454-9679-5cf3200e612e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7f7e5f-0055-4454-9679-5cf3200e612e/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c03aa9fd4feebd47970076773e3fcb11c7b82646fa9d57d8ea4dde0614545dfa [2021-10-28 23:31:19,730 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:31:19,768 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:31:19,772 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:31:19,774 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:31:19,774 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:31:19,775 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7f7e5f-0055-4454-9679-5cf3200e612e/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/ldv-memsafety/memleaks_test20-2.i [2021-10-28 23:31:19,872 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7f7e5f-0055-4454-9679-5cf3200e612e/bin/uautomizer-GMMbpWq8iD/data/9aed6cfde/c94cb039033d40ba8f903efbd6ece9a9/FLAG3c3d102fa [2021-10-28 23:31:20,557 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:31:20,559 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7f7e5f-0055-4454-9679-5cf3200e612e/sv-benchmarks/c/ldv-memsafety/memleaks_test20-2.i [2021-10-28 23:31:20,585 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7f7e5f-0055-4454-9679-5cf3200e612e/bin/uautomizer-GMMbpWq8iD/data/9aed6cfde/c94cb039033d40ba8f903efbd6ece9a9/FLAG3c3d102fa [2021-10-28 23:31:20,781 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7f7e5f-0055-4454-9679-5cf3200e612e/bin/uautomizer-GMMbpWq8iD/data/9aed6cfde/c94cb039033d40ba8f903efbd6ece9a9 [2021-10-28 23:31:20,785 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:31:20,788 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 23:31:20,791 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:31:20,791 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:31:20,796 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:31:20,797 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:31:20" (1/1) ... [2021-10-28 23:31:20,799 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1273e5b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:31:20, skipping insertion in model container [2021-10-28 23:31:20,799 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:31:20" (1/1) ... [2021-10-28 23:31:20,808 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:31:20,892 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:31:21,396 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:31:21,413 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-28 23:31:21,422 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:31:21,467 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:31:21,478 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:31:21,532 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:31:21,577 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:31:21,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:31:21 WrapperNode [2021-10-28 23:31:21,578 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:31:21,579 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:31:21,579 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:31:21,580 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:31:21,596 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:31:21" (1/1) ... [2021-10-28 23:31:21,596 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:31:21" (1/1) ... [2021-10-28 23:31:21,624 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:31:21" (1/1) ... [2021-10-28 23:31:21,624 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:31:21" (1/1) ... [2021-10-28 23:31:21,666 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:31:21" (1/1) ... [2021-10-28 23:31:21,674 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:31:21" (1/1) ... [2021-10-28 23:31:21,681 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:31:21" (1/1) ... [2021-10-28 23:31:21,696 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:31:21,697 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:31:21,697 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:31:21,697 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:31:21,698 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:31:21" (1/1) ... [2021-10-28 23:31:21,711 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:31:21,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7f7e5f-0055-4454-9679-5cf3200e612e/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:31:21,737 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7f7e5f-0055-4454-9679-5cf3200e612e/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:31:21,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7f7e5f-0055-4454-9679-5cf3200e612e/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:31:21,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-28 23:31:21,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:31:21,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-10-28 23:31:21,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-10-28 23:31:21,780 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-10-28 23:31:21,783 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-10-28 23:31:21,783 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-10-28 23:31:21,783 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-10-28 23:31:21,784 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-10-28 23:31:21,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-10-28 23:31:21,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-10-28 23:31:21,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-10-28 23:31:21,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-10-28 23:31:21,786 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-10-28 23:31:21,787 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-10-28 23:31:21,791 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-10-28 23:31:21,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-10-28 23:31:21,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-10-28 23:31:21,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-10-28 23:31:21,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-10-28 23:31:21,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-10-28 23:31:21,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-10-28 23:31:21,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-10-28 23:31:21,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-10-28 23:31:21,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-10-28 23:31:21,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-10-28 23:31:21,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-10-28 23:31:21,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-10-28 23:31:21,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-10-28 23:31:21,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-10-28 23:31:21,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-10-28 23:31:21,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-10-28 23:31:21,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-10-28 23:31:21,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-10-28 23:31:21,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-10-28 23:31:21,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-10-28 23:31:21,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-10-28 23:31:21,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-10-28 23:31:21,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-10-28 23:31:21,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-10-28 23:31:21,797 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-10-28 23:31:21,797 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-10-28 23:31:21,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_device [2021-10-28 23:31:21,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_device [2021-10-28 23:31:21,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_deregister_device [2021-10-28 23:31:21,798 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_20 [2021-10-28 23:31:21,798 INFO L138 BoogieDeclarations]: Found implementation of procedure free_20 [2021-10-28 23:31:21,799 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-10-28 23:31:21,800 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-28 23:31:21,800 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-10-28 23:31:21,800 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-10-28 23:31:21,801 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-10-28 23:31:21,801 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-10-28 23:31:21,801 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-10-28 23:31:21,801 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-10-28 23:31:21,801 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-10-28 23:31:21,802 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-10-28 23:31:21,802 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-10-28 23:31:21,802 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-10-28 23:31:21,803 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-10-28 23:31:21,803 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-10-28 23:31:21,803 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-10-28 23:31:21,805 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-10-28 23:31:21,805 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-10-28 23:31:21,806 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-10-28 23:31:21,806 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-10-28 23:31:21,806 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-10-28 23:31:21,807 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-10-28 23:31:21,807 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-10-28 23:31:21,807 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-10-28 23:31:21,807 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-10-28 23:31:21,807 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-10-28 23:31:21,807 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-10-28 23:31:21,808 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-10-28 23:31:21,808 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-10-28 23:31:21,808 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-10-28 23:31:21,808 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-10-28 23:31:21,808 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-10-28 23:31:21,809 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-10-28 23:31:21,810 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-10-28 23:31:21,810 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-10-28 23:31:21,810 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-10-28 23:31:21,810 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-10-28 23:31:21,810 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-10-28 23:31:21,811 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-10-28 23:31:21,811 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-10-28 23:31:21,811 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-10-28 23:31:21,811 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-10-28 23:31:21,811 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-10-28 23:31:21,811 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-10-28 23:31:21,812 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-10-28 23:31:21,812 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-10-28 23:31:21,812 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-10-28 23:31:21,812 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-10-28 23:31:21,812 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-10-28 23:31:21,812 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-10-28 23:31:21,812 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-10-28 23:31:21,812 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-10-28 23:31:21,812 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-10-28 23:31:21,813 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-10-28 23:31:21,813 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-10-28 23:31:21,813 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-10-28 23:31:21,813 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-10-28 23:31:21,813 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-10-28 23:31:21,813 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-10-28 23:31:21,813 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-10-28 23:31:21,814 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-10-28 23:31:21,814 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-10-28 23:31:21,814 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-10-28 23:31:21,814 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-10-28 23:31:21,814 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-10-28 23:31:21,814 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-10-28 23:31:21,814 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-10-28 23:31:21,815 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-10-28 23:31:21,815 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-10-28 23:31:21,815 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-28 23:31:21,815 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-10-28 23:31:21,815 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-10-28 23:31:21,815 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-10-28 23:31:21,816 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-10-28 23:31:21,816 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-10-28 23:31:21,816 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-10-28 23:31:21,817 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-10-28 23:31:21,818 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-10-28 23:31:21,820 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-10-28 23:31:21,821 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-10-28 23:31:21,821 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-10-28 23:31:21,822 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-10-28 23:31:21,823 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-10-28 23:31:21,824 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-10-28 23:31:21,824 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-10-28 23:31:21,824 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-10-28 23:31:21,825 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-10-28 23:31:21,829 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-10-28 23:31:21,830 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-10-28 23:31:21,830 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-10-28 23:31:21,830 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-10-28 23:31:21,830 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-10-28 23:31:21,830 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-10-28 23:31:21,830 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-10-28 23:31:21,830 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-10-28 23:31:21,831 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-10-28 23:31:21,831 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-10-28 23:31:21,831 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-10-28 23:31:21,831 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-10-28 23:31:21,831 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-10-28 23:31:21,831 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-10-28 23:31:21,831 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-10-28 23:31:21,832 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-10-28 23:31:21,832 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-10-28 23:31:21,832 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-10-28 23:31:21,832 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-10-28 23:31:21,832 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-10-28 23:31:21,832 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-10-28 23:31:21,832 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-10-28 23:31:21,832 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-10-28 23:31:21,833 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-10-28 23:31:21,833 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-10-28 23:31:21,833 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-10-28 23:31:21,833 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-10-28 23:31:21,833 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-28 23:31:21,833 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-10-28 23:31:21,833 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-10-28 23:31:21,834 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-10-28 23:31:21,834 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-10-28 23:31:21,834 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-10-28 23:31:21,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-28 23:31:21,834 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-10-28 23:31:21,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-10-28 23:31:21,834 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-10-28 23:31:21,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-28 23:31:21,835 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-10-28 23:31:21,835 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-10-28 23:31:21,835 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-10-28 23:31:21,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-28 23:31:21,835 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-10-28 23:31:21,835 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-10-28 23:31:21,835 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-10-28 23:31:21,836 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-10-28 23:31:21,836 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-10-28 23:31:21,836 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-10-28 23:31:21,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 23:31:21,836 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-10-28 23:31:21,836 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-10-28 23:31:21,836 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-10-28 23:31:21,836 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-10-28 23:31:21,837 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-10-28 23:31:21,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-28 23:31:21,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-28 23:31:21,837 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-10-28 23:31:21,837 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-10-28 23:31:21,837 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-10-28 23:31:21,837 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-10-28 23:31:21,838 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-10-28 23:31:21,838 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-10-28 23:31:21,838 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-10-28 23:31:21,838 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-10-28 23:31:21,838 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-10-28 23:31:21,838 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-10-28 23:31:21,840 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-10-28 23:31:21,841 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-10-28 23:31:21,841 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-10-28 23:31:21,841 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-10-28 23:31:21,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-10-28 23:31:21,841 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-10-28 23:31:21,841 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-10-28 23:31:21,841 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_device [2021-10-28 23:31:21,842 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_device [2021-10-28 23:31:21,842 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_deregister_device [2021-10-28 23:31:21,843 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_20 [2021-10-28 23:31:21,843 INFO L130 BoogieDeclarations]: Found specification of procedure free_20 [2021-10-28 23:31:21,843 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-10-28 23:31:21,843 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-28 23:31:21,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-28 23:31:21,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:31:21,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-28 23:31:21,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:31:21,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-10-28 23:31:21,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-10-28 23:31:21,845 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-10-28 23:31:21,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-10-28 23:31:21,845 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-10-28 23:31:22,446 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 23:31:22,843 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 23:31:23,247 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:31:23,247 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-10-28 23:31:23,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:31:23 BoogieIcfgContainer [2021-10-28 23:31:23,250 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:31:23,252 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:31:23,252 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:31:23,261 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:31:23,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:31:20" (1/3) ... [2021-10-28 23:31:23,262 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e62b1fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:31:23, skipping insertion in model container [2021-10-28 23:31:23,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:31:21" (2/3) ... [2021-10-28 23:31:23,264 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e62b1fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:31:23, skipping insertion in model container [2021-10-28 23:31:23,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:31:23" (3/3) ... [2021-10-28 23:31:23,265 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test20-2.i [2021-10-28 23:31:23,271 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:31:23,272 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 74 error locations. [2021-10-28 23:31:23,335 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:31:23,341 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 23:31:23,342 INFO L340 AbstractCegarLoop]: Starting to check reachability of 74 error locations. [2021-10-28 23:31:23,358 INFO L276 IsEmpty]: Start isEmpty. Operand has 113 states, 62 states have (on average 1.467741935483871) internal successors, (91), 84 states have internal predecessors, (91), 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 23:31:23,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-28 23:31:23,368 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:31:23,368 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 23:31:23,369 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting free_20Err0ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-28 23:31:23,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:31:23,375 INFO L85 PathProgramCache]: Analyzing trace with hash -2108151956, now seen corresponding path program 1 times [2021-10-28 23:31:23,387 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:31:23,388 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [269977629] [2021-10-28 23:31:23,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:31:23,389 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:31:23,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7f7e5f-0055-4454-9679-5cf3200e612e/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:31:23,392 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7f7e5f-0055-4454-9679-5cf3200e612e/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:31:23,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7f7e5f-0055-4454-9679-5cf3200e612e/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-28 23:31:23,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:31:23,578 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:31:23,584 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:31:23,742 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 23:31:23,742 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:31:23,859 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 23:31:23,859 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:31:23,860 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [269977629] [2021-10-28 23:31:23,860 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [269977629] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:31:23,861 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:31:23,861 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-28 23:31:23,862 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457795598] [2021-10-28 23:31:23,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:31:23,867 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:31:23,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:31:23,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:31:23,884 INFO L87 Difference]: Start difference. First operand has 113 states, 62 states have (on average 1.467741935483871) internal successors, (91), 84 states have internal predecessors, (91), 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, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2021-10-28 23:31:23,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:31:23,920 INFO L93 Difference]: Finished difference Result 50 states and 53 transitions. [2021-10-28 23:31:23,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:31:23,921 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 24 [2021-10-28 23:31:23,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:31:23,931 INFO L225 Difference]: With dead ends: 50 [2021-10-28 23:31:23,931 INFO L226 Difference]: Without dead ends: 47 [2021-10-28 23:31:23,933 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 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 23:31:23,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-10-28 23:31:23,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 44. [2021-10-28 23:31:23,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 24 states have (on average 1.25) internal successors, (30), 28 states have internal predecessors, (30), 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 23:31:23,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 46 transitions. [2021-10-28 23:31:23,974 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 46 transitions. Word has length 24 [2021-10-28 23:31:23,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:31:23,975 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 46 transitions. [2021-10-28 23:31:23,975 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2021-10-28 23:31:23,975 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 46 transitions. [2021-10-28 23:31:23,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-28 23:31:23,976 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:31:23,976 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 23:31:23,995 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7f7e5f-0055-4454-9679-5cf3200e612e/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-28 23:31:24,188 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7f7e5f-0055-4454-9679-5cf3200e612e/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:31:24,189 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting free_20Err0ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-28 23:31:24,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:31:24,189 INFO L85 PathProgramCache]: Analyzing trace with hash -600600147, now seen corresponding path program 1 times [2021-10-28 23:31:24,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:31:24,190 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1871632501] [2021-10-28 23:31:24,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:31:24,191 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:31:24,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7f7e5f-0055-4454-9679-5cf3200e612e/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:31:24,192 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7f7e5f-0055-4454-9679-5cf3200e612e/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:31:24,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7f7e5f-0055-4454-9679-5cf3200e612e/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-28 23:31:24,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:31:24,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 21 conjunts are in the unsatisfiable core [2021-10-28 23:31:24,400 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:31:24,755 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 23:31:24,756 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:31:25,180 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 23:31:25,180 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:31:25,181 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1871632501] [2021-10-28 23:31:25,181 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1871632501] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:31:25,181 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:31:25,181 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 9 [2021-10-28 23:31:25,181 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183572078] [2021-10-28 23:31:25,183 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 23:31:25,183 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:31:25,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 23:31:25,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-10-28 23:31:25,185 INFO L87 Difference]: Start difference. First operand 44 states and 46 transitions. Second operand has 9 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 4 states have call successors, (10), 4 states have call predecessors, (10), 6 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2021-10-28 23:31:25,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:31:25,582 INFO L93 Difference]: Finished difference Result 60 states and 62 transitions. [2021-10-28 23:31:25,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 23:31:25,583 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 4 states have call successors, (10), 4 states have call predecessors, (10), 6 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 24 [2021-10-28 23:31:25,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:31:25,585 INFO L225 Difference]: With dead ends: 60 [2021-10-28 23:31:25,585 INFO L226 Difference]: Without dead ends: 60 [2021-10-28 23:31:25,586 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2021-10-28 23:31:25,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2021-10-28 23:31:25,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 55. [2021-10-28 23:31:25,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 30 states have (on average 1.2) internal successors, (36), 34 states have internal predecessors, (36), 10 states have call successors, (10), 10 states have call predecessors, (10), 11 states have return successors, (11), 10 states have call predecessors, (11), 9 states have call successors, (11) [2021-10-28 23:31:25,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 57 transitions. [2021-10-28 23:31:25,607 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 57 transitions. Word has length 24 [2021-10-28 23:31:25,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:31:25,607 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 57 transitions. [2021-10-28 23:31:25,608 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 4 states have call successors, (10), 4 states have call predecessors, (10), 6 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2021-10-28 23:31:25,608 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 57 transitions. [2021-10-28 23:31:25,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-28 23:31:25,609 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:31:25,609 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:31:25,622 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7f7e5f-0055-4454-9679-5cf3200e612e/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-28 23:31:25,810 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7f7e5f-0055-4454-9679-5cf3200e612e/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:31:25,810 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting free_20Err0ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-28 23:31:25,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:31:25,811 INFO L85 PathProgramCache]: Analyzing trace with hash 976042921, now seen corresponding path program 1 times [2021-10-28 23:31:25,811 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:31:25,811 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [31855620] [2021-10-28 23:31:25,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:31:25,812 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:31:25,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7f7e5f-0055-4454-9679-5cf3200e612e/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:31:25,813 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7f7e5f-0055-4454-9679-5cf3200e612e/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:31:25,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7f7e5f-0055-4454-9679-5cf3200e612e/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-28 23:31:26,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:31:26,065 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-28 23:31:26,067 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:31:26,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:31:26,262 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:31:26,560 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 23:31:26,561 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:31:26,561 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [31855620] [2021-10-28 23:31:26,561 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [31855620] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:31:26,561 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:31:26,561 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 12 [2021-10-28 23:31:26,562 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479225942] [2021-10-28 23:31:26,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-28 23:31:26,562 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:31:26,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-28 23:31:26,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2021-10-28 23:31:26,563 INFO L87 Difference]: Start difference. First operand 55 states and 57 transitions. Second operand has 13 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 11 states have internal predecessors, (19), 3 states have call successors, (9), 2 states have call predecessors, (9), 7 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2021-10-28 23:31:26,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:31:26,743 INFO L93 Difference]: Finished difference Result 55 states and 56 transitions. [2021-10-28 23:31:26,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-28 23:31:26,744 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 11 states have internal predecessors, (19), 3 states have call successors, (9), 2 states have call predecessors, (9), 7 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) Word has length 28 [2021-10-28 23:31:26,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:31:26,745 INFO L225 Difference]: With dead ends: 55 [2021-10-28 23:31:26,746 INFO L226 Difference]: Without dead ends: 55 [2021-10-28 23:31:26,746 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2021-10-28 23:31:26,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2021-10-28 23:31:26,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 54. [2021-10-28 23:31:26,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 30 states have (on average 1.1333333333333333) internal successors, (34), 33 states have internal predecessors, (34), 10 states have call successors, (10), 10 states have call predecessors, (10), 11 states have return successors, (11), 10 states have call predecessors, (11), 9 states have call successors, (11) [2021-10-28 23:31:26,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 55 transitions. [2021-10-28 23:31:26,754 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 55 transitions. Word has length 28 [2021-10-28 23:31:26,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:31:26,755 INFO L470 AbstractCegarLoop]: Abstraction has 54 states and 55 transitions. [2021-10-28 23:31:26,755 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 11 states have internal predecessors, (19), 3 states have call successors, (9), 2 states have call predecessors, (9), 7 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2021-10-28 23:31:26,755 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 55 transitions. [2021-10-28 23:31:26,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-28 23:31:26,756 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:31:26,756 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 23:31:26,776 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7f7e5f-0055-4454-9679-5cf3200e612e/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-28 23:31:26,976 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7f7e5f-0055-4454-9679-5cf3200e612e/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:31:26,977 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting free_20Err1ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-28 23:31:26,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:31:26,977 INFO L85 PathProgramCache]: Analyzing trace with hash 192559894, now seen corresponding path program 1 times [2021-10-28 23:31:26,977 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:31:26,978 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1184009749] [2021-10-28 23:31:26,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:31:26,978 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:31:26,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7f7e5f-0055-4454-9679-5cf3200e612e/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:31:26,979 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7f7e5f-0055-4454-9679-5cf3200e612e/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:31:27,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7f7e5f-0055-4454-9679-5cf3200e612e/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-28 23:31:27,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:31:27,240 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-28 23:31:27,243 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:31:27,826 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 23:31:27,827 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:31:28,402 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 23:31:28,403 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:31:28,403 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1184009749] [2021-10-28 23:31:28,403 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1184009749] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:31:28,403 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:31:28,403 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 10] imperfect sequences [] total 21 [2021-10-28 23:31:28,404 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236367158] [2021-10-28 23:31:28,404 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-10-28 23:31:28,404 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:31:28,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-10-28 23:31:28,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=381, Unknown=0, NotChecked=0, Total=462 [2021-10-28 23:31:28,406 INFO L87 Difference]: Start difference. First operand 54 states and 55 transitions. Second operand has 22 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 17 states have internal predecessors, (32), 6 states have call successors, (15), 5 states have call predecessors, (15), 10 states have return successors, (10), 8 states have call predecessors, (10), 6 states have call successors, (10) [2021-10-28 23:31:29,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:31:29,706 INFO L93 Difference]: Finished difference Result 77 states and 77 transitions. [2021-10-28 23:31:29,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-10-28 23:31:29,707 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 17 states have internal predecessors, (32), 6 states have call successors, (15), 5 states have call predecessors, (15), 10 states have return successors, (10), 8 states have call predecessors, (10), 6 states have call successors, (10) Word has length 29 [2021-10-28 23:31:29,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:31:29,709 INFO L225 Difference]: With dead ends: 77 [2021-10-28 23:31:29,709 INFO L226 Difference]: Without dead ends: 77 [2021-10-28 23:31:29,710 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=250, Invalid=1232, Unknown=0, NotChecked=0, Total=1482 [2021-10-28 23:31:29,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2021-10-28 23:31:29,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 53. [2021-10-28 23:31:29,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 30 states have (on average 1.1) internal successors, (33), 32 states have internal predecessors, (33), 10 states have call successors, (10), 10 states have call predecessors, (10), 11 states have return successors, (11), 10 states have call predecessors, (11), 9 states have call successors, (11) [2021-10-28 23:31:29,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 54 transitions. [2021-10-28 23:31:29,717 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 54 transitions. Word has length 29 [2021-10-28 23:31:29,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:31:29,717 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 54 transitions. [2021-10-28 23:31:29,717 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 17 states have internal predecessors, (32), 6 states have call successors, (15), 5 states have call predecessors, (15), 10 states have return successors, (10), 8 states have call predecessors, (10), 6 states have call successors, (10) [2021-10-28 23:31:29,718 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 54 transitions. [2021-10-28 23:31:29,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-28 23:31:29,719 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:31:29,719 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] [2021-10-28 23:31:29,732 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7f7e5f-0055-4454-9679-5cf3200e612e/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-28 23:31:29,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7f7e5f-0055-4454-9679-5cf3200e612e/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:31:29,919 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting free_20Err2ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-28 23:31:29,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:31:29,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1674389835, now seen corresponding path program 1 times [2021-10-28 23:31:29,920 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:31:29,920 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [583988876] [2021-10-28 23:31:29,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:31:29,921 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:31:29,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7f7e5f-0055-4454-9679-5cf3200e612e/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:31:29,922 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7f7e5f-0055-4454-9679-5cf3200e612e/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:31:29,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7f7e5f-0055-4454-9679-5cf3200e612e/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-28 23:31:30,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:31:30,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-28 23:31:30,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:31:30,221 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 23:31:30,473 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 23:31:30,473 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:31:30,821 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 23:31:30,821 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:31:30,821 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [583988876] [2021-10-28 23:31:30,822 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [583988876] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:31:30,822 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:31:30,822 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 13 [2021-10-28 23:31:30,822 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794624172] [2021-10-28 23:31:30,823 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-28 23:31:30,823 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:31:30,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-28 23:31:30,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2021-10-28 23:31:30,824 INFO L87 Difference]: Start difference. First operand 53 states and 54 transitions. Second operand has 14 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 11 states have internal predecessors, (21), 3 states have call successors, (10), 3 states have call predecessors, (10), 7 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2021-10-28 23:31:31,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:31:31,250 INFO L93 Difference]: Finished difference Result 71 states and 73 transitions. [2021-10-28 23:31:31,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-28 23:31:31,251 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 11 states have internal predecessors, (21), 3 states have call successors, (10), 3 states have call predecessors, (10), 7 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) Word has length 30 [2021-10-28 23:31:31,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:31:31,252 INFO L225 Difference]: With dead ends: 71 [2021-10-28 23:31:31,252 INFO L226 Difference]: Without dead ends: 71 [2021-10-28 23:31:31,253 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 42 SyntacticMatches, 6 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=272, Unknown=0, NotChecked=0, Total=342 [2021-10-28 23:31:31,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2021-10-28 23:31:31,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 66. [2021-10-28 23:31:31,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 38 states have (on average 1.0789473684210527) internal successors, (41), 40 states have internal predecessors, (41), 13 states have call successors, (13), 12 states have call predecessors, (13), 13 states have return successors, (15), 13 states have call predecessors, (15), 12 states have call successors, (15) [2021-10-28 23:31:31,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 69 transitions. [2021-10-28 23:31:31,262 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 69 transitions. Word has length 30 [2021-10-28 23:31:31,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:31:31,263 INFO L470 AbstractCegarLoop]: Abstraction has 66 states and 69 transitions. [2021-10-28 23:31:31,263 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 11 states have internal predecessors, (21), 3 states have call successors, (10), 3 states have call predecessors, (10), 7 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2021-10-28 23:31:31,263 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 69 transitions. [2021-10-28 23:31:31,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-28 23:31:31,265 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:31:31,265 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] [2021-10-28 23:31:31,283 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7f7e5f-0055-4454-9679-5cf3200e612e/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-10-28 23:31:31,466 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7f7e5f-0055-4454-9679-5cf3200e612e/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:31:31,466 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting free_20Err2ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-28 23:31:31,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:31:31,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1885740748, now seen corresponding path program 1 times [2021-10-28 23:31:31,467 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:31:31,467 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [810390967] [2021-10-28 23:31:31,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:31:31,467 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:31:31,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7f7e5f-0055-4454-9679-5cf3200e612e/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:31:31,468 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7f7e5f-0055-4454-9679-5cf3200e612e/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:31:31,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7f7e5f-0055-4454-9679-5cf3200e612e/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-28 23:31:31,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:31:31,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 23:31:31,690 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:31:31,821 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 23:31:31,821 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:31:31,982 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 23:31:31,982 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:31:31,983 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [810390967] [2021-10-28 23:31:31,983 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [810390967] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:31:31,983 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:31:31,983 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-28 23:31:31,983 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049307544] [2021-10-28 23:31:31,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:31:31,984 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:31:31,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:31:31,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:31:31,985 INFO L87 Difference]: Start difference. First operand 66 states and 69 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2021-10-28 23:31:31,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:31:31,999 INFO L93 Difference]: Finished difference Result 52 states and 52 transitions. [2021-10-28 23:31:31,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:31:31,999 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 30 [2021-10-28 23:31:32,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:31:32,000 INFO L225 Difference]: With dead ends: 52 [2021-10-28 23:31:32,001 INFO L226 Difference]: Without dead ends: 52 [2021-10-28 23:31:32,001 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 56 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 23:31:32,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-10-28 23:31:32,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2021-10-28 23:31:32,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 30 states have (on average 1.0333333333333334) internal successors, (31), 31 states have internal predecessors, (31), 10 states have call successors, (10), 10 states have call predecessors, (10), 11 states have return successors, (11), 10 states have call predecessors, (11), 9 states have call successors, (11) [2021-10-28 23:31:32,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 52 transitions. [2021-10-28 23:31:32,007 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 52 transitions. Word has length 30 [2021-10-28 23:31:32,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:31:32,007 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 52 transitions. [2021-10-28 23:31:32,008 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2021-10-28 23:31:32,008 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 52 transitions. [2021-10-28 23:31:32,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-28 23:31:32,009 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:31:32,009 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 23:31:32,029 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7f7e5f-0055-4454-9679-5cf3200e612e/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-28 23:31:32,225 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7f7e5f-0055-4454-9679-5cf3200e612e/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:31:32,225 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-28 23:31:32,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:31:32,226 INFO L85 PathProgramCache]: Analyzing trace with hash 844909557, now seen corresponding path program 1 times [2021-10-28 23:31:32,226 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:31:32,226 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [945226612] [2021-10-28 23:31:32,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:31:32,227 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:31:32,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7f7e5f-0055-4454-9679-5cf3200e612e/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:31:32,228 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7f7e5f-0055-4454-9679-5cf3200e612e/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:31:32,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7f7e5f-0055-4454-9679-5cf3200e612e/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-28 23:31:32,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:31:32,499 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-28 23:31:32,501 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:31:32,605 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 23:31:32,605 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:31:32,812 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 23:31:32,812 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:31:32,812 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [945226612] [2021-10-28 23:31:32,812 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [945226612] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:31:32,812 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:31:32,812 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-28 23:31:32,812 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427100411] [2021-10-28 23:31:32,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:31:32,813 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:31:32,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:31:32,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:31:32,814 INFO L87 Difference]: Start difference. First operand 52 states and 52 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-10-28 23:31:32,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:31:32,858 INFO L93 Difference]: Finished difference Result 56 states and 55 transitions. [2021-10-28 23:31:32,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:31:32,859 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 29 [2021-10-28 23:31:32,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:31:32,860 INFO L225 Difference]: With dead ends: 56 [2021-10-28 23:31:32,860 INFO L226 Difference]: Without dead ends: 37 [2021-10-28 23:31:32,860 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:31:32,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-10-28 23:31:32,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2021-10-28 23:31:32,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 21 states have (on average 1.0) internal successors, (21), 21 states have internal predecessors, (21), 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 23:31:32,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 36 transitions. [2021-10-28 23:31:32,863 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 36 transitions. Word has length 29 [2021-10-28 23:31:32,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:31:32,864 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 36 transitions. [2021-10-28 23:31:32,864 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-10-28 23:31:32,864 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 36 transitions. [2021-10-28 23:31:32,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-10-28 23:31:32,865 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:31:32,865 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] [2021-10-28 23:31:32,880 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7f7e5f-0055-4454-9679-5cf3200e612e/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-28 23:31:33,065 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7f7e5f-0055-4454-9679-5cf3200e612e/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:31:33,066 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-28 23:31:33,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:31:33,066 INFO L85 PathProgramCache]: Analyzing trace with hash -548127480, now seen corresponding path program 1 times [2021-10-28 23:31:33,066 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:31:33,066 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [883362214] [2021-10-28 23:31:33,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:31:33,067 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:31:33,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7f7e5f-0055-4454-9679-5cf3200e612e/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:31:33,067 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7f7e5f-0055-4454-9679-5cf3200e612e/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:31:33,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7f7e5f-0055-4454-9679-5cf3200e612e/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-28 23:31:33,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:31:33,318 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 24 conjunts are in the unsatisfiable core [2021-10-28 23:31:33,320 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:31:33,441 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 0 case distinctions, treesize of input 20 treesize of output 17 [2021-10-28 23:31:33,593 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 13 [2021-10-28 23:31:33,828 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 23:31:33,829 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:31:38,167 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_17| (Array (_ BitVec 32) (_ BitVec 1)))) (or (= |v_old(#valid)_BEFORE_CALL_17| |c_#valid|) (exists ((v_~saved_device_20~0.base_121 (_ BitVec 32))) (and (not (= |v_old(#valid)_BEFORE_CALL_17| (store |c_old(#valid)| v_~saved_device_20~0.base_121 (_ bv0 1)))) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_old(#valid)| v_~saved_device_20~0.base_121)))))))))))))))))) is different from false [2021-10-28 23:31:38,368 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_17| (Array (_ BitVec 32) (_ BitVec 1)))) (or (exists ((v_~saved_device_20~0.base_121 (_ BitVec 32))) (and (not (= |v_old(#valid)_BEFORE_CALL_17| (store |c_old(#valid)| v_~saved_device_20~0.base_121 (_ bv0 1)))) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_old(#valid)| v_~saved_device_20~0.base_121)))))))))))))))) (= |v_old(#valid)_BEFORE_CALL_17| (store |c_#valid| c_~saved_device_20~0.base (_ bv0 1))))) is different from false [2021-10-28 23:31:38,510 INFO L354 Elim1Store]: treesize reduction 15, result has 79.5 percent of original size [2021-10-28 23:31:38,511 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 79 treesize of output 127 [2021-10-28 23:31:39,106 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:31:39,106 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [883362214] [2021-10-28 23:31:39,107 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(not (= (store |old(#valid)| ~saved_device_20~0.base (_ bv0 1)) v_prenex_1))=(not (= (select v_prenex_1 v_antiDerIndex_entry0_2) (select (store |old(#valid)| ~saved_device_20~0.base (_ bv0 1)) v_antiDerIndex_entry0_2)))} [2021-10-28 23:31:39,107 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [37454188] [2021-10-28 23:31:39,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:31:39,107 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-28 23:31:39,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7f7e5f-0055-4454-9679-5cf3200e612e/bin/uautomizer-GMMbpWq8iD/cvc4 [2021-10-28 23:31:39,112 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7f7e5f-0055-4454-9679-5cf3200e612e/bin/uautomizer-GMMbpWq8iD/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-28 23:31:39,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7f7e5f-0055-4454-9679-5cf3200e612e/bin/uautomizer-GMMbpWq8iD/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2021-10-28 23:31:39,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:31:39,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 26 conjunts are in the unsatisfiable core [2021-10-28 23:31:39,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:31:39,617 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-10-28 23:31:39,618 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 30 [2021-10-28 23:31:41,825 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 0 case distinctions, treesize of input 20 treesize of output 17 [2021-10-28 23:31:41,902 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2021-10-28 23:31:44,068 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 23:31:44,068 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:32:05,094 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(= (store |v_old(#valid)_BEFORE_CALL_26| v_~saved_device_20~0.base_121 (_ bv0 1)) v_prenex_3)=(= (select v_prenex_3 v_antiDerIndex_entry0_3) (select (store |v_old(#valid)_BEFORE_CALL_26| v_~saved_device_20~0.base_121 (_ bv0 1)) v_antiDerIndex_entry0_3))} [2021-10-28 23:32:05,094 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1993361668] [2021-10-28 23:32:05,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:32:05,095 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:32:05,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7f7e5f-0055-4454-9679-5cf3200e612e/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:32:05,111 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7f7e5f-0055-4454-9679-5cf3200e612e/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:32:05,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7f7e5f-0055-4454-9679-5cf3200e612e/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-10-28 23:32:05,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:32:05,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 23 conjunts are in the unsatisfiable core [2021-10-28 23:32:05,519 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:32:05,595 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 0 case distinctions, treesize of input 22 treesize of output 19 [2021-10-28 23:32:05,675 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 14 [2021-10-28 23:32:05,795 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 23:32:05,795 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:32:22,630 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_33| (Array (_ BitVec 32) (_ BitVec 1)))) (or (= |v_old(#valid)_BEFORE_CALL_33| (store |c_#valid| c_~saved_device_20~0.base (_ bv0 1))) (exists ((v_~saved_device_20~0.base_121 (_ BitVec 32))) (and (not (= |v_old(#valid)_BEFORE_CALL_33| (store |c_old(#valid)| v_~saved_device_20~0.base_121 (_ bv0 1)))) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_old(#valid)| v_~saved_device_20~0.base_121)))))))))))))))))) is different from false [2021-10-28 23:32:22,704 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(= (store |v_old(#valid)_BEFORE_CALL_34| v_~saved_device_20~0.base_121 (_ bv0 1)) v_prenex_5)=(= (select v_prenex_5 v_antiDerIndex_entry0_4) (select (store |v_old(#valid)_BEFORE_CALL_34| v_~saved_device_20~0.base_121 (_ bv0 1)) v_antiDerIndex_entry0_4))} [2021-10-28 23:32:22,705 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:32:22,705 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-10-28 23:32:22,705 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-10-28 23:32:22,705 INFO L627 BasicCegarLoop]: Counterexample might be feasible [2021-10-28 23:32:22,713 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-10-28 23:32:22,715 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION [2021-10-28 23:32:22,715 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION [2021-10-28 23:32:22,715 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION [2021-10-28 23:32:22,715 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION [2021-10-28 23:32:22,716 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION [2021-10-28 23:32:22,716 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION [2021-10-28 23:32:22,716 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION [2021-10-28 23:32:22,716 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION [2021-10-28 23:32:22,716 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION [2021-10-28 23:32:22,717 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION [2021-10-28 23:32:22,717 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION [2021-10-28 23:32:22,717 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION [2021-10-28 23:32:22,717 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION [2021-10-28 23:32:22,717 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION [2021-10-28 23:32:22,718 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION [2021-10-28 23:32:22,718 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION [2021-10-28 23:32:22,718 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION [2021-10-28 23:32:22,718 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION [2021-10-28 23:32:22,718 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION [2021-10-28 23:32:22,719 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION [2021-10-28 23:32:22,719 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION [2021-10-28 23:32:22,719 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION [2021-10-28 23:32:22,719 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION [2021-10-28 23:32:22,719 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION [2021-10-28 23:32:22,720 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION [2021-10-28 23:32:22,720 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION [2021-10-28 23:32:22,720 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION [2021-10-28 23:32:22,721 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION [2021-10-28 23:32:22,721 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION [2021-10-28 23:32:22,721 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION [2021-10-28 23:32:22,721 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION [2021-10-28 23:32:22,721 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION [2021-10-28 23:32:22,722 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION [2021-10-28 23:32:22,722 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION [2021-10-28 23:32:22,722 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION [2021-10-28 23:32:22,722 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION [2021-10-28 23:32:22,722 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION [2021-10-28 23:32:22,723 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION [2021-10-28 23:32:22,723 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION [2021-10-28 23:32:22,726 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION [2021-10-28 23:32:22,726 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION [2021-10-28 23:32:22,726 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION [2021-10-28 23:32:22,727 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:32:22,727 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:32:22,727 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:32:22,728 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:32:22,729 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:32:22,729 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:32:22,729 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION [2021-10-28 23:32:22,729 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION [2021-10-28 23:32:22,729 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION [2021-10-28 23:32:22,730 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION [2021-10-28 23:32:22,730 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION [2021-10-28 23:32:22,730 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION [2021-10-28 23:32:22,730 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION [2021-10-28 23:32:22,730 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION [2021-10-28 23:32:22,731 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:32:22,733 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:32:22,734 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:32:22,734 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:32:22,734 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:32:22,734 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:32:22,735 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION [2021-10-28 23:32:22,735 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION [2021-10-28 23:32:22,735 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION [2021-10-28 23:32:22,735 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION [2021-10-28 23:32:22,735 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION [2021-10-28 23:32:22,736 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION [2021-10-28 23:32:22,736 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION [2021-10-28 23:32:22,736 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION [2021-10-28 23:32:22,736 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_20Err0ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:32:22,736 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_20Err1ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:32:22,737 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_20Err2ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:32:22,749 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7f7e5f-0055-4454-9679-5cf3200e612e/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-10-28 23:32:22,952 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7f7e5f-0055-4454-9679-5cf3200e612e/bin/uautomizer-GMMbpWq8iD/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2021-10-28 23:32:23,171 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7f7e5f-0055-4454-9679-5cf3200e612e/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-10-28 23:32:23,349 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7f7e5f-0055-4454-9679-5cf3200e612e/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7f7e5f-0055-4454-9679-5cf3200e612e/bin/uautomizer-GMMbpWq8iD/cvc4 --incremental --print-success --lang smt,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7f7e5f-0055-4454-9679-5cf3200e612e/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:32:23,353 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:32:23,356 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:32:23,361 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-10-28 23:32:23,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:32:23 BoogieIcfgContainer [2021-10-28 23:32:23,371 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:32:23,372 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:32:23,372 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:32:23,372 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:32:23,373 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:31:23" (3/4) ... [2021-10-28 23:32:23,376 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 23:32:23,376 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:32:23,377 INFO L168 Benchmark]: Toolchain (without parser) took 62589.25 ms. Allocated memory was 60.8 MB in the beginning and 123.7 MB in the end (delta: 62.9 MB). Free memory was 36.6 MB in the beginning and 39.2 MB in the end (delta: -2.6 MB). Peak memory consumption was 59.8 MB. Max. memory is 16.1 GB. [2021-10-28 23:32:23,378 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 60.8 MB. Free memory was 41.3 MB in the beginning and 41.2 MB in the end (delta: 42.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:32:23,378 INFO L168 Benchmark]: CACSL2BoogieTranslator took 787.49 ms. Allocated memory is still 60.8 MB. Free memory was 36.4 MB in the beginning and 25.0 MB in the end (delta: 11.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:32:23,379 INFO L168 Benchmark]: Boogie Preprocessor took 117.07 ms. Allocated memory was 60.8 MB in the beginning and 77.6 MB in the end (delta: 16.8 MB). Free memory was 24.9 MB in the beginning and 54.8 MB in the end (delta: -29.9 MB). Peak memory consumption was 5.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:32:23,379 INFO L168 Benchmark]: RCFGBuilder took 1553.11 ms. Allocated memory is still 77.6 MB. Free memory was 54.8 MB in the beginning and 47.9 MB in the end (delta: 7.0 MB). Peak memory consumption was 25.7 MB. Max. memory is 16.1 GB. [2021-10-28 23:32:23,380 INFO L168 Benchmark]: TraceAbstraction took 60119.53 ms. Allocated memory was 77.6 MB in the beginning and 123.7 MB in the end (delta: 46.1 MB). Free memory was 47.5 MB in the beginning and 39.2 MB in the end (delta: 8.2 MB). Peak memory consumption was 54.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:32:23,380 INFO L168 Benchmark]: Witness Printer took 4.34 ms. Allocated memory is still 123.7 MB. Free memory is still 39.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:32:23,382 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 60.8 MB. Free memory was 41.3 MB in the beginning and 41.2 MB in the end (delta: 42.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 787.49 ms. Allocated memory is still 60.8 MB. Free memory was 36.4 MB in the beginning and 25.0 MB in the end (delta: 11.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 117.07 ms. Allocated memory was 60.8 MB in the beginning and 77.6 MB in the end (delta: 16.8 MB). Free memory was 24.9 MB in the beginning and 54.8 MB in the end (delta: -29.9 MB). Peak memory consumption was 5.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1553.11 ms. Allocated memory is still 77.6 MB. Free memory was 54.8 MB in the beginning and 47.9 MB in the end (delta: 7.0 MB). Peak memory consumption was 25.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 60119.53 ms. Allocated memory was 77.6 MB in the beginning and 123.7 MB in the end (delta: 46.1 MB). Free memory was 47.5 MB in the beginning and 39.2 MB in the end (delta: 8.2 MB). Peak memory consumption was 54.5 MB. Max. memory is 16.1 GB. * Witness Printer took 4.34 ms. Allocated memory is still 123.7 MB. Free memory is still 39.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 789]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: unable to decide satisfiability of path constraint, overapproximation of memtrack at line 789. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L761] struct ldv_device *saved_device_20; [L790] CALL entry_point() [L785] CALL alloc_20() [L772] CALL, EXPR ldv_malloc(sizeof(struct A20)) [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L772] RET, EXPR ldv_malloc(sizeof(struct A20)) [L772] struct A20 *p = (struct A20*)ldv_malloc(sizeof(struct A20)); [L773] COND TRUE \read(*p) [L774] CALL ldv_register_device(&p->dev) [L763] saved_device_20 = dev [L774] RET ldv_register_device(&p->dev) [L785] RET alloc_20() [L786] CALL free_20() [L778] CALL, EXPR ldv_get_device() [L766] return saved_device_20; [L778] RET, EXPR ldv_get_device() [L778] struct ldv_device *dev = ldv_get_device(); [L779] COND TRUE \read(*dev) [L780] const typeof( ((struct A20 *)0)->dev ) *__mptr = (dev); [L780] struct A20 *p = ({ const typeof( ((struct A20 *)0)->dev ) *__mptr = (dev); (struct A20 *)( (char *)__mptr - ((size_t) &((struct A20 *)0)->dev) );}); [L781] free(p) [L781] free(p) [L781] free(p) [L786] RET free_20() [L787] saved_device_20 = 0 [L790] RET entry_point() - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 781]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 781]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 781]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 52 procedures, 356 locations, 74 error locations. Started 1 CEGAR loops. OverallTime: 60.0s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 279 SDtfs, 255 SDslu, 1010 SDs, 0 SdLazy, 938 SolverSat, 109 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 416 GetRequests, 321 SyntacticMatches, 6 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 375 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=113occurred in iteration=0, InterpolantAutomatonStates: 73, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 38 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 9.7s InterpolantComputationTime, 230 NumberOfCodeBlocks, 230 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 409 ConstructedInterpolants, 13 QuantifiedInterpolants, 1978 SizeOfPredicates, 28 NumberOfNonLiveVariables, 919 ConjunctsInSsa, 106 ConjunctsInUnsatCore, 15 InterpolantComputations, 15 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-28 23:32:23,424 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7f7e5f-0055-4454-9679-5cf3200e612e/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...