./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67a68b0-8c58-489f-9afa-753cbb16830c/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67a68b0-8c58-489f-9afa-753cbb16830c/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_e67a68b0-8c58-489f-9afa-753cbb16830c/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67a68b0-8c58-489f-9afa-753cbb16830c/bin/uautomizer-GMMbpWq8iD/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67a68b0-8c58-489f-9afa-753cbb16830c/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_e67a68b0-8c58-489f-9afa-753cbb16830c/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 12544117846b274bd1cb12a6694f8fda1d77f0b1327b2e9a353cfe44563b100a ................................................................................................................................... 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_e67a68b0-8c58-489f-9afa-753cbb16830c/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67a68b0-8c58-489f-9afa-753cbb16830c/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_e67a68b0-8c58-489f-9afa-753cbb16830c/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67a68b0-8c58-489f-9afa-753cbb16830c/bin/uautomizer-GMMbpWq8iD/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67a68b0-8c58-489f-9afa-753cbb16830c/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_e67a68b0-8c58-489f-9afa-753cbb16830c/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 12544117846b274bd1cb12a6694f8fda1d77f0b1327b2e9a353cfe44563b100a ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:04:45,070 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:04:45,073 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:04:45,113 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:04:45,114 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:04:45,116 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:04:45,118 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:04:45,122 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:04:45,125 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:04:45,126 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:04:45,128 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:04:45,130 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:04:45,131 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:04:45,133 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:04:45,135 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:04:45,138 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:04:45,139 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:04:45,141 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:04:45,145 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:04:45,148 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:04:45,151 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:04:45,161 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:04:45,163 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:04:45,164 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:04:45,169 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:04:45,170 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:04:45,170 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:04:45,172 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:04:45,173 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:04:45,175 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:04:45,175 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:04:45,177 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:04:45,178 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:04:45,180 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:04:45,181 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:04:45,182 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:04:45,183 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:04:45,183 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:04:45,184 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:04:45,185 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:04:45,186 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:04:45,188 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67a68b0-8c58-489f-9afa-753cbb16830c/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-10-28 23:04:45,220 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:04:45,221 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:04:45,221 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:04:45,221 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:04:45,227 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:04:45,227 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:04:45,228 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:04:45,228 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:04:45,229 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:04:45,229 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:04:45,230 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:04:45,231 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:04:45,231 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:04:45,231 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 23:04:45,232 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 23:04:45,232 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 23:04:45,232 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:04:45,233 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 23:04:45,233 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:04:45,233 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:04:45,234 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:04:45,234 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:04:45,234 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:04:45,234 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:04:45,235 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:04:45,235 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:04:45,235 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:04:45,236 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 23:04:45,236 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:04:45,237 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_e67a68b0-8c58-489f-9afa-753cbb16830c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67a68b0-8c58-489f-9afa-753cbb16830c/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 12544117846b274bd1cb12a6694f8fda1d77f0b1327b2e9a353cfe44563b100a [2021-10-28 23:04:45,726 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:04:45,762 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:04:45,766 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:04:45,768 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:04:45,770 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:04:45,771 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67a68b0-8c58-489f-9afa-753cbb16830c/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_1.i [2021-10-28 23:04:45,879 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67a68b0-8c58-489f-9afa-753cbb16830c/bin/uautomizer-GMMbpWq8iD/data/22a3409ee/17ca79e556c647a08ceacd5ccc31483c/FLAG85cbfc639 [2021-10-28 23:04:46,740 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:04:46,740 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67a68b0-8c58-489f-9afa-753cbb16830c/sv-benchmarks/c/ldv-memsafety/memleaks_test18_1.i [2021-10-28 23:04:46,760 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67a68b0-8c58-489f-9afa-753cbb16830c/bin/uautomizer-GMMbpWq8iD/data/22a3409ee/17ca79e556c647a08ceacd5ccc31483c/FLAG85cbfc639 [2021-10-28 23:04:46,930 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67a68b0-8c58-489f-9afa-753cbb16830c/bin/uautomizer-GMMbpWq8iD/data/22a3409ee/17ca79e556c647a08ceacd5ccc31483c [2021-10-28 23:04:46,933 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:04:46,935 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 23:04:46,938 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:04:46,938 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:04:46,945 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:04:46,946 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:04:46" (1/1) ... [2021-10-28 23:04:46,948 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@336e140e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:04:46, skipping insertion in model container [2021-10-28 23:04:46,949 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:04:46" (1/1) ... [2021-10-28 23:04:46,959 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:04:47,053 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:04:47,713 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:04:47,748 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 23:04:47,749 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@75dae75b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:04:47, skipping insertion in model container [2021-10-28 23:04:47,749 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:04:47,751 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-10-28 23:04:47,754 INFO L168 Benchmark]: Toolchain (without parser) took 816.83 ms. Allocated memory is still 109.1 MB. Free memory was 67.2 MB in the beginning and 78.3 MB in the end (delta: -11.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:04:47,757 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 109.1 MB. Free memory was 85.7 MB in the beginning and 85.6 MB in the end (delta: 53.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:04:47,758 INFO L168 Benchmark]: CACSL2BoogieTranslator took 812.90 ms. Allocated memory is still 109.1 MB. Free memory was 67.0 MB in the beginning and 78.3 MB in the end (delta: -11.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:04:47,762 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 109.1 MB. Free memory was 85.7 MB in the beginning and 85.6 MB in the end (delta: 53.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 812.90 ms. Allocated memory is still 109.1 MB. Free memory was 67.0 MB in the beginning and 78.3 MB in the end (delta: -11.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:04:50,862 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:04:50,867 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:04:50,940 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:04:50,941 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:04:50,947 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:04:50,950 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:04:50,960 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:04:50,964 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:04:50,975 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:04:50,976 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:04:50,979 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:04:50,981 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:04:50,985 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:04:50,988 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:04:50,996 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:04:50,998 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:04:51,000 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:04:51,003 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:04:51,013 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:04:51,017 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:04:51,019 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:04:51,022 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:04:51,026 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:04:51,033 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:04:51,034 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:04:51,034 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:04:51,037 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:04:51,038 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:04:51,040 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:04:51,040 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:04:51,042 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:04:51,045 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:04:51,046 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:04:51,048 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:04:51,049 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:04:51,050 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:04:51,050 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:04:51,051 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:04:51,054 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:04:51,055 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:04:51,062 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67a68b0-8c58-489f-9afa-753cbb16830c/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-28 23:04:51,121 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:04:51,122 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:04:51,123 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:04:51,123 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:04:51,126 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:04:51,126 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:04:51,126 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:04:51,127 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:04:51,127 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:04:51,127 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:04:51,129 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:04:51,129 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:04:51,130 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:04:51,130 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 23:04:51,130 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 23:04:51,131 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 23:04:51,131 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:04:51,131 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 23:04:51,131 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-28 23:04:51,132 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-28 23:04:51,132 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:04:51,132 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:04:51,133 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:04:51,133 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:04:51,133 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:04:51,134 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:04:51,134 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:04:51,134 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:04:51,135 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-28 23:04:51,135 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-28 23:04:51,135 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:04:51,135 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-28 23:04:51,136 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_e67a68b0-8c58-489f-9afa-753cbb16830c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67a68b0-8c58-489f-9afa-753cbb16830c/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 12544117846b274bd1cb12a6694f8fda1d77f0b1327b2e9a353cfe44563b100a [2021-10-28 23:04:51,660 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:04:51,694 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:04:51,699 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:04:51,701 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:04:51,702 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:04:51,703 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67a68b0-8c58-489f-9afa-753cbb16830c/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_1.i [2021-10-28 23:04:51,792 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67a68b0-8c58-489f-9afa-753cbb16830c/bin/uautomizer-GMMbpWq8iD/data/7c517f536/da298aa6cec9426a8e6d7ec368bc6ca3/FLAGf302de541 [2021-10-28 23:04:52,654 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:04:52,656 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67a68b0-8c58-489f-9afa-753cbb16830c/sv-benchmarks/c/ldv-memsafety/memleaks_test18_1.i [2021-10-28 23:04:52,684 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67a68b0-8c58-489f-9afa-753cbb16830c/bin/uautomizer-GMMbpWq8iD/data/7c517f536/da298aa6cec9426a8e6d7ec368bc6ca3/FLAGf302de541 [2021-10-28 23:04:52,809 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67a68b0-8c58-489f-9afa-753cbb16830c/bin/uautomizer-GMMbpWq8iD/data/7c517f536/da298aa6cec9426a8e6d7ec368bc6ca3 [2021-10-28 23:04:52,812 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:04:52,815 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 23:04:52,818 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:04:52,818 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:04:52,823 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:04:52,824 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:04:52" (1/1) ... [2021-10-28 23:04:52,826 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62f46b3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:04:52, skipping insertion in model container [2021-10-28 23:04:52,826 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:04:52" (1/1) ... [2021-10-28 23:04:52,836 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:04:52,921 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:04:53,546 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:04:53,567 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-28 23:04:53,578 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:04:53,633 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:04:53,643 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:04:53,722 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:04:53,782 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:04:53,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:04:53 WrapperNode [2021-10-28 23:04:53,783 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:04:53,785 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:04:53,785 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:04:53,785 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:04:53,800 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:04:53" (1/1) ... [2021-10-28 23:04:53,801 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:04:53" (1/1) ... [2021-10-28 23:04:53,860 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:04:53" (1/1) ... [2021-10-28 23:04:53,861 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:04:53" (1/1) ... [2021-10-28 23:04:53,924 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:04:53" (1/1) ... [2021-10-28 23:04:53,931 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:04:53" (1/1) ... [2021-10-28 23:04:53,940 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:04:53" (1/1) ... [2021-10-28 23:04:53,980 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:04:53,981 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:04:53,981 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:04:53,982 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:04:53,983 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:04:53" (1/1) ... [2021-10-28 23:04:53,992 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:04:54,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67a68b0-8c58-489f-9afa-753cbb16830c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:04:54,034 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67a68b0-8c58-489f-9afa-753cbb16830c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:04:54,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67a68b0-8c58-489f-9afa-753cbb16830c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:04:54,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-28 23:04:54,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:04:54,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-10-28 23:04:54,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-10-28 23:04:54,103 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-10-28 23:04:54,106 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-10-28 23:04:54,107 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-10-28 23:04:54,107 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-10-28 23:04:54,107 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-10-28 23:04:54,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-10-28 23:04:54,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-10-28 23:04:54,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-10-28 23:04:54,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-10-28 23:04:54,109 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-10-28 23:04:54,109 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-10-28 23:04:54,109 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-10-28 23:04:54,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-10-28 23:04:54,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-10-28 23:04:54,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-10-28 23:04:54,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-10-28 23:04:54,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-10-28 23:04:54,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-10-28 23:04:54,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-10-28 23:04:54,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-10-28 23:04:54,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-10-28 23:04:54,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-10-28 23:04:54,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-10-28 23:04:54,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-10-28 23:04:54,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-10-28 23:04:54,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-10-28 23:04:54,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-10-28 23:04:54,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-10-28 23:04:54,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-10-28 23:04:54,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-10-28 23:04:54,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-10-28 23:04:54,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-10-28 23:04:54,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-10-28 23:04:54,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-10-28 23:04:54,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-10-28 23:04:54,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-10-28 23:04:54,117 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-10-28 23:04:54,117 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-10-28 23:04:54,118 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-10-28 23:04:54,119 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-28 23:04:54,119 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-10-28 23:04:54,119 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-10-28 23:04:54,121 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-10-28 23:04:54,121 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-10-28 23:04:54,121 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-10-28 23:04:54,122 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-10-28 23:04:54,122 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-10-28 23:04:54,122 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-10-28 23:04:54,123 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-10-28 23:04:54,123 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-10-28 23:04:54,123 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-10-28 23:04:54,124 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-10-28 23:04:54,124 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-10-28 23:04:54,124 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-10-28 23:04:54,125 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-10-28 23:04:54,125 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-10-28 23:04:54,126 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-10-28 23:04:54,126 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-10-28 23:04:54,127 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-10-28 23:04:54,128 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-10-28 23:04:54,129 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-10-28 23:04:54,129 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-10-28 23:04:54,129 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-10-28 23:04:54,130 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-10-28 23:04:54,130 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-10-28 23:04:54,130 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-10-28 23:04:54,131 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-10-28 23:04:54,131 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-10-28 23:04:54,131 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-10-28 23:04:54,131 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-10-28 23:04:54,132 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-10-28 23:04:54,132 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-10-28 23:04:54,132 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-10-28 23:04:54,133 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-10-28 23:04:54,134 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-10-28 23:04:54,134 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-10-28 23:04:54,134 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-10-28 23:04:54,135 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-10-28 23:04:54,135 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-10-28 23:04:54,135 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-10-28 23:04:54,135 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-10-28 23:04:54,136 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-10-28 23:04:54,136 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-10-28 23:04:54,136 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-10-28 23:04:54,136 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-10-28 23:04:54,137 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-10-28 23:04:54,137 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-10-28 23:04:54,137 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-10-28 23:04:54,137 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-10-28 23:04:54,138 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-10-28 23:04:54,138 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-10-28 23:04:54,138 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-10-28 23:04:54,139 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-10-28 23:04:54,139 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-10-28 23:04:54,139 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-10-28 23:04:54,140 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-10-28 23:04:54,140 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-10-28 23:04:54,140 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-10-28 23:04:54,141 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-10-28 23:04:54,141 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-10-28 23:04:54,141 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-10-28 23:04:54,142 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-10-28 23:04:54,142 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-10-28 23:04:54,142 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-10-28 23:04:54,142 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-10-28 23:04:54,143 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-10-28 23:04:54,143 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-28 23:04:54,143 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-10-28 23:04:54,143 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-10-28 23:04:54,144 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-10-28 23:04:54,144 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-10-28 23:04:54,145 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-10-28 23:04:54,145 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-10-28 23:04:54,145 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-10-28 23:04:54,146 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-10-28 23:04:54,146 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-10-28 23:04:54,146 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-10-28 23:04:54,147 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-10-28 23:04:54,148 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-10-28 23:04:54,149 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-10-28 23:04:54,152 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-10-28 23:04:54,152 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-10-28 23:04:54,153 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-10-28 23:04:54,153 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-10-28 23:04:54,155 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-10-28 23:04:54,156 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-10-28 23:04:54,157 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-10-28 23:04:54,157 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-10-28 23:04:54,158 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-10-28 23:04:54,164 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-10-28 23:04:54,164 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-10-28 23:04:54,165 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-10-28 23:04:54,165 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-10-28 23:04:54,165 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-10-28 23:04:54,166 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-10-28 23:04:54,166 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-10-28 23:04:54,166 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-10-28 23:04:54,166 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-10-28 23:04:54,167 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-10-28 23:04:54,167 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-10-28 23:04:54,167 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-10-28 23:04:54,167 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-10-28 23:04:54,168 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-10-28 23:04:54,168 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-10-28 23:04:54,168 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-10-28 23:04:54,169 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-10-28 23:04:54,169 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-10-28 23:04:54,187 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-10-28 23:04:54,187 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-10-28 23:04:54,187 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-10-28 23:04:54,187 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-10-28 23:04:54,188 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-28 23:04:54,188 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-10-28 23:04:54,188 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-10-28 23:04:54,188 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-10-28 23:04:54,189 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-10-28 23:04:54,189 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-10-28 23:04:54,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-28 23:04:54,189 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-10-28 23:04:54,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-10-28 23:04:54,190 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-10-28 23:04:54,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-28 23:04:54,190 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-10-28 23:04:54,191 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-10-28 23:04:54,191 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-10-28 23:04:54,191 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-28 23:04:54,191 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-10-28 23:04:54,192 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-10-28 23:04:54,192 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-10-28 23:04:54,192 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-10-28 23:04:54,192 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-10-28 23:04:54,193 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-10-28 23:04:54,193 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 23:04:54,194 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-10-28 23:04:54,194 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-10-28 23:04:54,194 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-10-28 23:04:54,194 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-10-28 23:04:54,195 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-10-28 23:04:54,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-28 23:04:54,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-28 23:04:54,195 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-10-28 23:04:54,196 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-10-28 23:04:54,196 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-10-28 23:04:54,196 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-10-28 23:04:54,196 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-10-28 23:04:54,197 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-10-28 23:04:54,197 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-10-28 23:04:54,197 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-10-28 23:04:54,197 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-10-28 23:04:54,198 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-10-28 23:04:54,198 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-10-28 23:04:54,198 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-10-28 23:04:54,198 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-10-28 23:04:54,198 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-10-28 23:04:54,199 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-10-28 23:04:54,199 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-10-28 23:04:54,199 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-10-28 23:04:54,199 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-10-28 23:04:54,200 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-28 23:04:54,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-28 23:04:54,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:04:54,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-28 23:04:54,201 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:04:54,201 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-10-28 23:04:54,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-10-28 23:04:54,201 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-10-28 23:04:54,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-10-28 23:04:54,202 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-10-28 23:04:54,985 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 23:04:55,400 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 23:04:55,895 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:04:55,896 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2021-10-28 23:04:55,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:04:55 BoogieIcfgContainer [2021-10-28 23:04:55,902 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:04:55,905 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:04:55,905 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:04:55,909 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:04:55,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:04:52" (1/3) ... [2021-10-28 23:04:55,910 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@279cb1fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:04:55, skipping insertion in model container [2021-10-28 23:04:55,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:04:53" (2/3) ... [2021-10-28 23:04:55,912 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@279cb1fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:04:55, skipping insertion in model container [2021-10-28 23:04:55,912 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:04:55" (3/3) ... [2021-10-28 23:04:55,914 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test18_1.i [2021-10-28 23:04:55,921 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:04:55,922 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 78 error locations. [2021-10-28 23:04:55,989 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:04:55,997 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 23:04:55,998 INFO L340 AbstractCegarLoop]: Starting to check reachability of 78 error locations. [2021-10-28 23:04:56,030 INFO L276 IsEmpty]: Start isEmpty. Operand has 111 states, 63 states have (on average 1.5873015873015872) internal successors, (100), 88 states have internal predecessors, (100), 12 states have call successors, (12), 10 states have call predecessors, (12), 10 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2021-10-28 23:04:56,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-28 23:04:56,044 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:04:56,045 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:04:56,046 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 74 more)] === [2021-10-28 23:04:56,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:04:56,057 INFO L85 PathProgramCache]: Analyzing trace with hash 1086874314, now seen corresponding path program 1 times [2021-10-28 23:04:56,072 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:04:56,073 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1180416835] [2021-10-28 23:04:56,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:04:56,074 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:04:56,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67a68b0-8c58-489f-9afa-753cbb16830c/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:04:56,082 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67a68b0-8c58-489f-9afa-753cbb16830c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:04:56,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67a68b0-8c58-489f-9afa-753cbb16830c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-28 23:04:56,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:04:56,326 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:04:56,334 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:04:56,510 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 23:04:56,511 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:04:56,693 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 23:04:56,695 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:04:56,696 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1180416835] [2021-10-28 23:04:56,697 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1180416835] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:04:56,697 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:04:56,698 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-28 23:04:56,700 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872188765] [2021-10-28 23:04:56,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:04:56,708 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:04:56,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:04:56,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:04:56,736 INFO L87 Difference]: Start difference. First operand has 111 states, 63 states have (on average 1.5873015873015872) internal successors, (100), 88 states have internal predecessors, (100), 12 states have call successors, (12), 10 states have call predecessors, (12), 10 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 23:04:56,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:04:56,921 INFO L93 Difference]: Finished difference Result 67 states and 78 transitions. [2021-10-28 23:04:56,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:04:56,925 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 17 [2021-10-28 23:04:56,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:04:56,937 INFO L225 Difference]: With dead ends: 67 [2021-10-28 23:04:56,937 INFO L226 Difference]: Without dead ends: 64 [2021-10-28 23:04:56,939 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 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 23:04:56,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-10-28 23:04:56,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 42. [2021-10-28 23:04:56,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 25 states have (on average 1.48) internal successors, (37), 32 states have internal predecessors, (37), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2021-10-28 23:04:57,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 48 transitions. [2021-10-28 23:04:57,002 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 48 transitions. Word has length 17 [2021-10-28 23:04:57,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:04:57,003 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 48 transitions. [2021-10-28 23:04:57,004 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 23:04:57,004 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 48 transitions. [2021-10-28 23:04:57,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-28 23:04:57,007 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:04:57,007 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:04:57,028 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67a68b0-8c58-489f-9afa-753cbb16830c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-28 23:04:57,228 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67a68b0-8c58-489f-9afa-753cbb16830c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:04:57,228 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 74 more)] === [2021-10-28 23:04:57,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:04:57,229 INFO L85 PathProgramCache]: Analyzing trace with hash -1465282647, now seen corresponding path program 1 times [2021-10-28 23:04:57,231 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:04:57,232 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [522086125] [2021-10-28 23:04:57,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:04:57,232 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:04:57,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67a68b0-8c58-489f-9afa-753cbb16830c/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:04:57,234 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67a68b0-8c58-489f-9afa-753cbb16830c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:04:57,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67a68b0-8c58-489f-9afa-753cbb16830c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-28 23:04:57,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:04:57,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 23:04:57,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:04:57,552 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 23:04:57,552 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:04:57,693 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 23:04:57,693 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:04:57,694 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [522086125] [2021-10-28 23:04:57,694 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [522086125] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:04:57,694 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:04:57,695 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-28 23:04:57,695 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119095719] [2021-10-28 23:04:57,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:04:57,697 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:04:57,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:04:57,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:04:57,699 INFO L87 Difference]: Start difference. First operand 42 states and 48 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-28 23:04:57,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:04:57,812 INFO L93 Difference]: Finished difference Result 64 states and 74 transitions. [2021-10-28 23:04:57,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:04:57,813 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 17 [2021-10-28 23:04:57,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:04:57,814 INFO L225 Difference]: With dead ends: 64 [2021-10-28 23:04:57,815 INFO L226 Difference]: Without dead ends: 61 [2021-10-28 23:04:57,815 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 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 23:04:57,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2021-10-28 23:04:57,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 50. [2021-10-28 23:04:57,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 32 states have (on average 1.46875) internal successors, (47), 39 states have internal predecessors, (47), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) [2021-10-28 23:04:57,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 61 transitions. [2021-10-28 23:04:57,825 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 61 transitions. Word has length 17 [2021-10-28 23:04:57,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:04:57,826 INFO L470 AbstractCegarLoop]: Abstraction has 50 states and 61 transitions. [2021-10-28 23:04:57,826 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-28 23:04:57,826 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 61 transitions. [2021-10-28 23:04:57,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-28 23:04:57,828 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:04:57,828 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:04:57,849 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67a68b0-8c58-489f-9afa-753cbb16830c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-28 23:04:58,049 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67a68b0-8c58-489f-9afa-753cbb16830c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:04:58,050 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting entry_pointErr2REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 74 more)] === [2021-10-28 23:04:58,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:04:58,051 INFO L85 PathProgramCache]: Analyzing trace with hash -666992135, now seen corresponding path program 1 times [2021-10-28 23:04:58,051 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:04:58,052 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1978058814] [2021-10-28 23:04:58,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:04:58,052 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:04:58,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67a68b0-8c58-489f-9afa-753cbb16830c/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:04:58,055 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67a68b0-8c58-489f-9afa-753cbb16830c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:04:58,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67a68b0-8c58-489f-9afa-753cbb16830c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-28 23:04:58,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:04:58,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-28 23:04:58,259 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:04:58,351 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 23:04:58,351 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:04:58,443 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 23:04:58,443 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:04:58,444 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1978058814] [2021-10-28 23:04:58,444 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1978058814] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:04:58,444 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:04:58,444 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-28 23:04:58,445 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45870637] [2021-10-28 23:04:58,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 23:04:58,446 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:04:58,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:04:58,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:04:58,447 INFO L87 Difference]: Start difference. First operand 50 states and 61 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-10-28 23:04:58,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:04:58,542 INFO L93 Difference]: Finished difference Result 98 states and 119 transitions. [2021-10-28 23:04:58,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:04:58,543 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 18 [2021-10-28 23:04:58,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:04:58,545 INFO L225 Difference]: With dead ends: 98 [2021-10-28 23:04:58,546 INFO L226 Difference]: Without dead ends: 98 [2021-10-28 23:04:58,546 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2021-10-28 23:04:58,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2021-10-28 23:04:58,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 64. [2021-10-28 23:04:58,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 44 states have (on average 1.4772727272727273) internal successors, (65), 51 states have internal predecessors, (65), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (12), 8 states have call predecessors, (12), 7 states have call successors, (12) [2021-10-28 23:04:58,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 85 transitions. [2021-10-28 23:04:58,559 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 85 transitions. Word has length 18 [2021-10-28 23:04:58,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:04:58,559 INFO L470 AbstractCegarLoop]: Abstraction has 64 states and 85 transitions. [2021-10-28 23:04:58,560 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-10-28 23:04:58,560 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 85 transitions. [2021-10-28 23:04:58,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-28 23:04:58,561 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:04:58,562 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:04:58,580 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67a68b0-8c58-489f-9afa-753cbb16830c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-28 23:04:58,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67a68b0-8c58-489f-9afa-753cbb16830c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:04:58,776 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting entry_pointErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 74 more)] === [2021-10-28 23:04:58,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:04:58,777 INFO L85 PathProgramCache]: Analyzing trace with hash 1630788241, now seen corresponding path program 1 times [2021-10-28 23:04:58,777 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:04:58,777 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [892032574] [2021-10-28 23:04:58,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:04:58,778 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:04:58,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67a68b0-8c58-489f-9afa-753cbb16830c/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:04:58,779 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67a68b0-8c58-489f-9afa-753cbb16830c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:04:58,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67a68b0-8c58-489f-9afa-753cbb16830c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-28 23:04:59,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:04:59,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 23:04:59,038 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:04:59,121 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 23:04:59,326 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-10-28 23:04:59,327 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 26 [2021-10-28 23:04:59,389 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:04:59,389 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:04:59,777 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:04:59,778 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:04:59,778 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [892032574] [2021-10-28 23:04:59,779 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [892032574] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-28 23:04:59,779 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:04:59,779 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 7 [2021-10-28 23:04:59,779 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548739954] [2021-10-28 23:04:59,780 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 23:04:59,785 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:04:59,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 23:04:59,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-10-28 23:04:59,787 INFO L87 Difference]: Start difference. First operand 64 states and 85 transitions. Second operand has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-28 23:05:00,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:05:00,663 INFO L93 Difference]: Finished difference Result 134 states and 158 transitions. [2021-10-28 23:05:00,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 23:05:00,666 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 23 [2021-10-28 23:05:00,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:05:00,669 INFO L225 Difference]: With dead ends: 134 [2021-10-28 23:05:00,669 INFO L226 Difference]: Without dead ends: 134 [2021-10-28 23:05:00,669 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 34 SyntacticMatches, 6 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2021-10-28 23:05:00,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2021-10-28 23:05:00,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 76. [2021-10-28 23:05:00,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 55 states have (on average 1.4363636363636363) internal successors, (79), 61 states have internal predecessors, (79), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (12), 9 states have call predecessors, (12), 7 states have call successors, (12) [2021-10-28 23:05:00,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 99 transitions. [2021-10-28 23:05:00,684 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 99 transitions. Word has length 23 [2021-10-28 23:05:00,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:05:00,684 INFO L470 AbstractCegarLoop]: Abstraction has 76 states and 99 transitions. [2021-10-28 23:05:00,685 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-28 23:05:00,685 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 99 transitions. [2021-10-28 23:05:00,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-28 23:05:00,686 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:05:00,686 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:05:00,704 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67a68b0-8c58-489f-9afa-753cbb16830c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-10-28 23:05:00,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67a68b0-8c58-489f-9afa-753cbb16830c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:05:00,899 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting entry_pointErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 74 more)] === [2021-10-28 23:05:00,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:05:00,900 INFO L85 PathProgramCache]: Analyzing trace with hash 1630788242, now seen corresponding path program 1 times [2021-10-28 23:05:00,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:05:00,900 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [311574792] [2021-10-28 23:05:00,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:05:00,900 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:05:00,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67a68b0-8c58-489f-9afa-753cbb16830c/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:05:00,901 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67a68b0-8c58-489f-9afa-753cbb16830c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:05:00,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67a68b0-8c58-489f-9afa-753cbb16830c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-28 23:05:01,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:05:01,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-28 23:05:01,145 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:05:01,208 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 23:05:01,218 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 23:05:03,697 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-10-28 23:05:03,698 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2021-10-28 23:05:03,713 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-28 23:05:03,714 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 26 [2021-10-28 23:05:03,840 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:05:03,840 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:05:23,080 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 29 treesize of output 27 [2021-10-28 23:05:23,799 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 27 treesize of output 25 [2021-10-28 23:05:24,029 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:05:24,030 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:05:24,030 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [311574792] [2021-10-28 23:05:24,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [311574792] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-28 23:05:24,031 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:05:24,031 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2021-10-28 23:05:24,031 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636738747] [2021-10-28 23:05:24,032 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-10-28 23:05:24,032 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:05:24,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-28 23:05:24,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=257, Unknown=6, NotChecked=0, Total=306 [2021-10-28 23:05:24,034 INFO L87 Difference]: Start difference. First operand 76 states and 99 transitions. Second operand has 18 states, 15 states have (on average 1.8666666666666667) internal successors, (28), 16 states have internal predecessors, (28), 5 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-10-28 23:09:16,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:09:16,460 INFO L93 Difference]: Finished difference Result 245 states and 297 transitions. [2021-10-28 23:09:16,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-10-28 23:09:16,461 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 15 states have (on average 1.8666666666666667) internal successors, (28), 16 states have internal predecessors, (28), 5 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 23 [2021-10-28 23:09:16,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:09:16,464 INFO L225 Difference]: With dead ends: 245 [2021-10-28 23:09:16,464 INFO L226 Difference]: Without dead ends: 245 [2021-10-28 23:09:16,465 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 76.5s TimeCoverageRelationStatistics Valid=201, Invalid=964, Unknown=25, NotChecked=0, Total=1190 [2021-10-28 23:09:16,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2021-10-28 23:09:16,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 88. [2021-10-28 23:09:16,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 65 states have (on average 1.3846153846153846) internal successors, (90), 71 states have internal predecessors, (90), 10 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (16), 11 states have call predecessors, (16), 9 states have call successors, (16) [2021-10-28 23:09:16,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 116 transitions. [2021-10-28 23:09:16,486 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 116 transitions. Word has length 23 [2021-10-28 23:09:16,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:09:16,486 INFO L470 AbstractCegarLoop]: Abstraction has 88 states and 116 transitions. [2021-10-28 23:09:16,487 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 15 states have (on average 1.8666666666666667) internal successors, (28), 16 states have internal predecessors, (28), 5 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-10-28 23:09:16,487 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 116 transitions. [2021-10-28 23:09:16,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-28 23:09:16,488 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:09:16,489 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:09:16,519 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67a68b0-8c58-489f-9afa-753cbb16830c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-28 23:09:16,715 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67a68b0-8c58-489f-9afa-753cbb16830c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:09:16,716 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting entry_pointErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 74 more)] === [2021-10-28 23:09:16,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:09:16,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1125229616, now seen corresponding path program 1 times [2021-10-28 23:09:16,716 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:09:16,716 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1541704002] [2021-10-28 23:09:16,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:09:16,717 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:09:16,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67a68b0-8c58-489f-9afa-753cbb16830c/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:09:16,718 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67a68b0-8c58-489f-9afa-753cbb16830c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:09:16,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67a68b0-8c58-489f-9afa-753cbb16830c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-28 23:09:16,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:09:16,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 23:09:16,945 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:09:17,197 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:09:17,197 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:09:17,388 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 23:09:17,388 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:09:17,389 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1541704002] [2021-10-28 23:09:17,389 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1541704002] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-28 23:09:17,389 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:09:17,389 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2021-10-28 23:09:17,389 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551011073] [2021-10-28 23:09:17,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:09:17,390 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:09:17,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:09:17,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:09:17,391 INFO L87 Difference]: Start difference. First operand 88 states and 116 transitions. 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, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-28 23:09:17,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:09:17,468 INFO L93 Difference]: Finished difference Result 64 states and 79 transitions. [2021-10-28 23:09:17,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:09:17,469 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, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 23 [2021-10-28 23:09:17,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:09:17,470 INFO L225 Difference]: With dead ends: 64 [2021-10-28 23:09:17,470 INFO L226 Difference]: Without dead ends: 60 [2021-10-28 23:09:17,471 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:09:17,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2021-10-28 23:09:17,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2021-10-28 23:09:17,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 41 states have (on average 1.3658536585365855) internal successors, (56), 47 states have internal predecessors, (56), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) [2021-10-28 23:09:17,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 75 transitions. [2021-10-28 23:09:17,478 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 75 transitions. Word has length 23 [2021-10-28 23:09:17,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:09:17,479 INFO L470 AbstractCegarLoop]: Abstraction has 60 states and 75 transitions. [2021-10-28 23:09:17,479 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, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-28 23:09:17,479 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 75 transitions. [2021-10-28 23:09:17,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-28 23:09:17,480 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:09:17,480 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:09:17,503 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67a68b0-8c58-489f-9afa-753cbb16830c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-28 23:09:17,681 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67a68b0-8c58-489f-9afa-753cbb16830c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:09:17,681 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting entry_pointErr3REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 74 more)] === [2021-10-28 23:09:17,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:09:17,682 INFO L85 PathProgramCache]: Analyzing trace with hash -475603747, now seen corresponding path program 1 times [2021-10-28 23:09:17,682 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:09:17,682 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2001087155] [2021-10-28 23:09:17,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:09:17,682 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:09:17,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67a68b0-8c58-489f-9afa-753cbb16830c/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:09:17,685 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67a68b0-8c58-489f-9afa-753cbb16830c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:09:17,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67a68b0-8c58-489f-9afa-753cbb16830c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-28 23:09:17,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:09:17,938 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:09:17,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:09:18,084 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 23:09:18,084 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:09:18,204 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 23:09:18,205 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:09:18,205 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2001087155] [2021-10-28 23:09:18,205 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2001087155] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:09:18,205 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:09:18,205 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-28 23:09:18,206 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070179709] [2021-10-28 23:09:18,206 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:09:18,206 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:09:18,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:09:18,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:09:18,208 INFO L87 Difference]: Start difference. First operand 60 states and 75 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 23:09:18,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:09:18,303 INFO L93 Difference]: Finished difference Result 89 states and 109 transitions. [2021-10-28 23:09:18,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 23:09:18,304 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 25 [2021-10-28 23:09:18,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:09:18,305 INFO L225 Difference]: With dead ends: 89 [2021-10-28 23:09:18,306 INFO L226 Difference]: Without dead ends: 89 [2021-10-28 23:09:18,306 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:09:18,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2021-10-28 23:09:18,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 64. [2021-10-28 23:09:18,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 45 states have (on average 1.3111111111111111) internal successors, (59), 49 states have internal predecessors, (59), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (11), 9 states have call predecessors, (11), 7 states have call successors, (11) [2021-10-28 23:09:18,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 78 transitions. [2021-10-28 23:09:18,315 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 78 transitions. Word has length 25 [2021-10-28 23:09:18,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:09:18,316 INFO L470 AbstractCegarLoop]: Abstraction has 64 states and 78 transitions. [2021-10-28 23:09:18,316 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 23:09:18,316 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 78 transitions. [2021-10-28 23:09:18,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-28 23:09:18,317 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:09:18,318 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:09:18,331 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67a68b0-8c58-489f-9afa-753cbb16830c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-28 23:09:18,530 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67a68b0-8c58-489f-9afa-753cbb16830c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:09:18,532 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting entry_pointErr3REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 74 more)] === [2021-10-28 23:09:18,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:09:18,533 INFO L85 PathProgramCache]: Analyzing trace with hash 1267206588, now seen corresponding path program 1 times [2021-10-28 23:09:18,534 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:09:18,534 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1497360694] [2021-10-28 23:09:18,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:09:18,534 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:09:18,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67a68b0-8c58-489f-9afa-753cbb16830c/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:09:18,535 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67a68b0-8c58-489f-9afa-753cbb16830c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:09:18,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67a68b0-8c58-489f-9afa-753cbb16830c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-28 23:09:18,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:09:18,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-28 23:09:18,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:09:18,932 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-28 23:09:18,932 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:09:19,107 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-28 23:09:19,108 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:09:19,108 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1497360694] [2021-10-28 23:09:19,108 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1497360694] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:09:19,108 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:09:19,108 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-28 23:09:19,108 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747655433] [2021-10-28 23:09:19,109 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 23:09:19,109 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:09:19,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:09:19,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:09:19,110 INFO L87 Difference]: Start difference. First operand 64 states and 78 transitions. Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-10-28 23:09:19,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:09:19,239 INFO L93 Difference]: Finished difference Result 68 states and 82 transitions. [2021-10-28 23:09:19,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:09:19,241 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 25 [2021-10-28 23:09:19,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:09:19,242 INFO L225 Difference]: With dead ends: 68 [2021-10-28 23:09:19,243 INFO L226 Difference]: Without dead ends: 68 [2021-10-28 23:09:19,243 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-28 23:09:19,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2021-10-28 23:09:19,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 66. [2021-10-28 23:09:19,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 47 states have (on average 1.297872340425532) internal successors, (61), 51 states have internal predecessors, (61), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (11), 9 states have call predecessors, (11), 7 states have call successors, (11) [2021-10-28 23:09:19,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 80 transitions. [2021-10-28 23:09:19,251 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 80 transitions. Word has length 25 [2021-10-28 23:09:19,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:09:19,251 INFO L470 AbstractCegarLoop]: Abstraction has 66 states and 80 transitions. [2021-10-28 23:09:19,252 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-10-28 23:09:19,252 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 80 transitions. [2021-10-28 23:09:19,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-28 23:09:19,253 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:09:19,253 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 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 23:09:19,266 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67a68b0-8c58-489f-9afa-753cbb16830c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-28 23:09:19,466 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67a68b0-8c58-489f-9afa-753cbb16830c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:09:19,466 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 74 more)] === [2021-10-28 23:09:19,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:09:19,467 INFO L85 PathProgramCache]: Analyzing trace with hash -1985214815, now seen corresponding path program 1 times [2021-10-28 23:09:19,467 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:09:19,467 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [262375964] [2021-10-28 23:09:19,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:09:19,467 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:09:19,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67a68b0-8c58-489f-9afa-753cbb16830c/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:09:19,468 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67a68b0-8c58-489f-9afa-753cbb16830c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:09:19,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67a68b0-8c58-489f-9afa-753cbb16830c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-28 23:09:19,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:09:19,718 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:09:19,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:09:19,780 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-10-28 23:09:19,780 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 23:09:19,781 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-10-28 23:09:19,784 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION [2021-10-28 23:09:19,784 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION [2021-10-28 23:09:19,784 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION [2021-10-28 23:09:19,785 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION [2021-10-28 23:09:19,785 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION [2021-10-28 23:09:19,785 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION [2021-10-28 23:09:19,785 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION [2021-10-28 23:09:19,785 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION [2021-10-28 23:09:19,786 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION [2021-10-28 23:09:19,786 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION [2021-10-28 23:09:19,786 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION [2021-10-28 23:09:19,786 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION [2021-10-28 23:09:19,786 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION [2021-10-28 23:09:19,787 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION [2021-10-28 23:09:19,787 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION [2021-10-28 23:09:19,787 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION [2021-10-28 23:09:19,787 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION [2021-10-28 23:09:19,787 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION [2021-10-28 23:09:19,788 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION [2021-10-28 23:09:19,788 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION [2021-10-28 23:09:19,788 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION [2021-10-28 23:09:19,788 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION [2021-10-28 23:09:19,788 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION [2021-10-28 23:09:19,789 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION [2021-10-28 23:09:19,789 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION [2021-10-28 23:09:19,789 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION [2021-10-28 23:09:19,789 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION [2021-10-28 23:09:19,789 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION [2021-10-28 23:09:19,790 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION [2021-10-28 23:09:19,790 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION [2021-10-28 23:09:19,790 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION [2021-10-28 23:09:19,790 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION [2021-10-28 23:09:19,791 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION [2021-10-28 23:09:19,791 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION [2021-10-28 23:09:19,791 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION [2021-10-28 23:09:19,791 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION [2021-10-28 23:09:19,791 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION [2021-10-28 23:09:19,792 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION [2021-10-28 23:09:19,792 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION [2021-10-28 23:09:19,792 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION [2021-10-28 23:09:19,792 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION [2021-10-28 23:09:19,792 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION [2021-10-28 23:09:19,793 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:09:19,793 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:09:19,793 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:09:19,793 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:09:19,794 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:09:19,794 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:09:19,794 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION [2021-10-28 23:09:19,794 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION [2021-10-28 23:09:19,795 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION [2021-10-28 23:09:19,795 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION [2021-10-28 23:09:19,795 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION [2021-10-28 23:09:19,795 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION [2021-10-28 23:09:19,795 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION [2021-10-28 23:09:19,796 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION [2021-10-28 23:09:19,796 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:09:19,796 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:09:19,796 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:09:19,797 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:09:19,797 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:09:19,797 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:09:19,797 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION [2021-10-28 23:09:19,797 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION [2021-10-28 23:09:19,798 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION [2021-10-28 23:09:19,798 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION [2021-10-28 23:09:19,798 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION [2021-10-28 23:09:19,798 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION [2021-10-28 23:09:19,799 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION [2021-10-28 23:09:19,799 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION [2021-10-28 23:09:19,799 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr0REQUIRES_VIOLATION [2021-10-28 23:09:19,799 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr1REQUIRES_VIOLATION [2021-10-28 23:09:19,799 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr2REQUIRES_VIOLATION [2021-10-28 23:09:19,800 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr3REQUIRES_VIOLATION [2021-10-28 23:09:19,800 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:09:19,800 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:09:19,800 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:09:19,819 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67a68b0-8c58-489f-9afa-753cbb16830c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-28 23:09:20,011 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67a68b0-8c58-489f-9afa-753cbb16830c/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:09:20,014 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:09:20,018 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:09:20,029 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-10-28 23:09:20,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:09:20 BoogieIcfgContainer [2021-10-28 23:09:20,047 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:09:20,047 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:09:20,048 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:09:20,048 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:09:20,048 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:04:55" (3/4) ... [2021-10-28 23:09:20,053 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 23:09:20,053 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:09:20,054 INFO L168 Benchmark]: Toolchain (without parser) took 267239.37 ms. Allocated memory was 92.3 MB in the beginning and 157.3 MB in the end (delta: 65.0 MB). Free memory was 55.7 MB in the beginning and 49.8 MB in the end (delta: 5.9 MB). Peak memory consumption was 72.7 MB. Max. memory is 16.1 GB. [2021-10-28 23:09:20,055 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 92.3 MB. Free memory was 73.8 MB in the beginning and 73.7 MB in the end (delta: 82.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:09:20,055 INFO L168 Benchmark]: CACSL2BoogieTranslator took 966.19 ms. Allocated memory is still 92.3 MB. Free memory was 55.5 MB in the beginning and 57.1 MB in the end (delta: -1.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 16.1 GB. [2021-10-28 23:09:20,056 INFO L168 Benchmark]: Boogie Preprocessor took 195.60 ms. Allocated memory is still 92.3 MB. Free memory was 57.1 MB in the beginning and 52.4 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:09:20,056 INFO L168 Benchmark]: RCFGBuilder took 1920.63 ms. Allocated memory was 92.3 MB in the beginning and 123.7 MB in the end (delta: 31.5 MB). Free memory was 52.2 MB in the beginning and 97.4 MB in the end (delta: -45.2 MB). Peak memory consumption was 20.9 MB. Max. memory is 16.1 GB. [2021-10-28 23:09:20,057 INFO L168 Benchmark]: TraceAbstraction took 264142.07 ms. Allocated memory was 123.7 MB in the beginning and 157.3 MB in the end (delta: 33.6 MB). Free memory was 97.4 MB in the beginning and 49.8 MB in the end (delta: 47.6 MB). Peak memory consumption was 80.7 MB. Max. memory is 16.1 GB. [2021-10-28 23:09:20,057 INFO L168 Benchmark]: Witness Printer took 5.81 ms. Allocated memory is still 157.3 MB. Free memory is still 49.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:09:20,060 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 92.3 MB. Free memory was 73.8 MB in the beginning and 73.7 MB in the end (delta: 82.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 966.19 ms. Allocated memory is still 92.3 MB. Free memory was 55.5 MB in the beginning and 57.1 MB in the end (delta: -1.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 195.60 ms. Allocated memory is still 92.3 MB. Free memory was 57.1 MB in the beginning and 52.4 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1920.63 ms. Allocated memory was 92.3 MB in the beginning and 123.7 MB in the end (delta: 31.5 MB). Free memory was 52.2 MB in the beginning and 97.4 MB in the end (delta: -45.2 MB). Peak memory consumption was 20.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 264142.07 ms. Allocated memory was 123.7 MB in the beginning and 157.3 MB in the end (delta: 33.6 MB). Free memory was 97.4 MB in the beginning and 49.8 MB in the end (delta: 47.6 MB). Peak memory consumption was 80.7 MB. Max. memory is 16.1 GB. * Witness Printer took 5.81 ms. Allocated memory is still 157.3 MB. Free memory is still 49.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 778]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 778. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; VAL [\old(ldv_global_msg_list)=null, \old(ldv_global_msg_list)=null, ldv_global_msg_list={-2147483648:0}] [L779] CALL entry_point() VAL [ldv_global_msg_list={-2147483648:0}] [L761] int len = 10; VAL [ldv_global_msg_list={-2147483648:0}, len=10] [L762] CALL, EXPR ldv_malloc(sizeof(struct A18*)*len) VAL [\old(size)=40, ldv_global_msg_list={-2147483648:0}] [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L762] RET, EXPR ldv_malloc(sizeof(struct A18*)*len) VAL [ldv_global_msg_list={-2147483648:0}, ldv_malloc(sizeof(struct A18*)*len)={1:0}, len=10] [L762] struct A18 **array = (struct A18 **)ldv_malloc(sizeof(struct A18*)*len); [L763] struct A18 *p; [L764] int i=0; [L765] int j; VAL [array={1:0}, i=0, ldv_global_msg_list={-2147483648:0}, len=10] [L766] COND FALSE !(!array) VAL [array={1:0}, i=0, ldv_global_msg_list={-2147483648:0}, len=10] [L767] COND TRUE i=0) VAL [array={1:0}, i=0, j=4294967295, ldv_global_msg_list={-2147483648:0}, len=10, p={0:0}] [L779] RET entry_point() VAL [ldv_global_msg_list={-2147483648:0}] - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 770]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 770]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 774]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 774]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 774]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 774]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 774]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 47 procedures, 351 locations, 78 error locations. Started 1 CEGAR loops. OverallTime: 264.0s, OverallIterations: 9, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 234.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 380 SDtfs, 670 SDslu, 1115 SDs, 0 SdLazy, 842 SolverSat, 129 SolverUnsat, 80 SolverUnknown, 0 SolverNotchecked, 170.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 361 GetRequests, 289 SyntacticMatches, 6 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 77.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=111occurred in iteration=0, InterpolantAutomatonStates: 64, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 309 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 25.4s InterpolantComputationTime, 198 NumberOfCodeBlocks, 198 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 326 ConstructedInterpolants, 19 QuantifiedInterpolants, 1576 SizeOfPredicates, 12 NumberOfNonLiveVariables, 719 ConjunctsInSsa, 52 ConjunctsInUnsatCore, 16 InterpolantComputations, 11 PerfectInterpolantSequences, 28/40 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 23:09:20,169 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67a68b0-8c58-489f-9afa-753cbb16830c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...