./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test14_1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test14_1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a70da9b875e65dfce1d24d9896f28c8f06f4c5903acb198968ef49c3c899dd06 ................................................................................................................................... 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_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test14_1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a70da9b875e65dfce1d24d9896f28c8f06f4c5903acb198968ef49c3c899dd06 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 18:16:23,126 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 18:16:23,129 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 18:16:23,172 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 18:16:23,173 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 18:16:23,179 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 18:16:23,181 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 18:16:23,186 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 18:16:23,189 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 18:16:23,197 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 18:16:23,198 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 18:16:23,200 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 18:16:23,201 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 18:16:23,204 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 18:16:23,207 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 18:16:23,212 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 18:16:23,215 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 18:16:23,217 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 18:16:23,221 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 18:16:23,225 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 18:16:23,230 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 18:16:23,231 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 18:16:23,235 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 18:16:23,236 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 18:16:23,242 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 18:16:23,243 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 18:16:23,243 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 18:16:23,245 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 18:16:23,246 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 18:16:23,248 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 18:16:23,249 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 18:16:23,250 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 18:16:23,252 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 18:16:23,253 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 18:16:23,255 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 18:16:23,255 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 18:16:23,256 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 18:16:23,256 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 18:16:23,256 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 18:16:23,257 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 18:16:23,258 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 18:16:23,259 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-10-21 18:16:23,295 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 18:16:23,295 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 18:16:23,296 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 18:16:23,296 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 18:16:23,297 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 18:16:23,297 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 18:16:23,298 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 18:16:23,298 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 18:16:23,298 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 18:16:23,299 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 18:16:23,299 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 18:16:23,299 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 18:16:23,299 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 18:16:23,299 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-21 18:16:23,300 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-21 18:16:23,300 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-21 18:16:23,300 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 18:16:23,300 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-21 18:16:23,301 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 18:16:23,301 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 18:16:23,301 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 18:16:23,301 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 18:16:23,302 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 18:16:23,302 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 18:16:23,302 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 18:16:23,302 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 18:16:23,303 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 18:16:23,303 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-21 18:16:23,303 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 18:16:23,303 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_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a70da9b875e65dfce1d24d9896f28c8f06f4c5903acb198968ef49c3c899dd06 [2021-10-21 18:16:23,546 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 18:16:23,581 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 18:16:23,584 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 18:16:23,586 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 18:16:23,587 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 18:16:23,588 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/ldv-memsafety/memleaks_test14_1.i [2021-10-21 18:16:23,676 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be/data/e9be36de5/fbeca916ff4f4ae6a71c308987d8772e/FLAG9359144bc [2021-10-21 18:16:24,259 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 18:16:24,263 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/sv-benchmarks/c/ldv-memsafety/memleaks_test14_1.i [2021-10-21 18:16:24,289 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be/data/e9be36de5/fbeca916ff4f4ae6a71c308987d8772e/FLAG9359144bc [2021-10-21 18:16:24,495 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be/data/e9be36de5/fbeca916ff4f4ae6a71c308987d8772e [2021-10-21 18:16:24,500 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 18:16:24,502 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-21 18:16:24,506 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 18:16:24,506 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 18:16:24,512 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 18:16:24,513 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 06:16:24" (1/1) ... [2021-10-21 18:16:24,514 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@657b4ff5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:16:24, skipping insertion in model container [2021-10-21 18:16:24,514 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 06:16:24" (1/1) ... [2021-10-21 18:16:24,521 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 18:16:24,563 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 18:16:24,931 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 18:16:24,946 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-10-21 18:16:24,947 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2603375 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:16:24, skipping insertion in model container [2021-10-21 18:16:24,947 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 18:16:24,947 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-10-21 18:16:24,949 INFO L168 Benchmark]: Toolchain (without parser) took 446.17 ms. Allocated memory is still 96.5 MB. Free memory was 59.9 MB in the beginning and 67.7 MB in the end (delta: -7.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 18:16:24,950 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 96.5 MB. Free memory was 70.2 MB in the beginning and 70.1 MB in the end (delta: 29.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 18:16:24,951 INFO L168 Benchmark]: CACSL2BoogieTranslator took 441.05 ms. Allocated memory is still 96.5 MB. Free memory was 59.7 MB in the beginning and 67.7 MB in the end (delta: -8.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 18:16:24,952 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 96.5 MB. Free memory was 70.2 MB in the beginning and 70.1 MB in the end (delta: 29.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 441.05 ms. Allocated memory is still 96.5 MB. Free memory was 59.7 MB in the beginning and 67.7 MB in the end (delta: -8.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 18:16:27,161 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 18:16:27,164 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 18:16:27,219 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 18:16:27,220 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 18:16:27,224 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 18:16:27,226 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 18:16:27,232 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 18:16:27,235 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 18:16:27,241 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 18:16:27,242 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 18:16:27,244 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 18:16:27,244 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 18:16:27,247 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 18:16:27,249 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 18:16:27,254 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 18:16:27,256 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 18:16:27,257 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 18:16:27,260 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 18:16:27,271 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 18:16:27,273 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 18:16:27,275 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 18:16:27,277 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 18:16:27,280 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 18:16:27,289 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 18:16:27,289 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 18:16:27,289 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 18:16:27,292 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 18:16:27,292 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 18:16:27,293 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 18:16:27,294 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 18:16:27,294 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 18:16:27,296 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 18:16:27,297 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 18:16:27,299 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 18:16:27,299 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 18:16:27,300 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 18:16:27,300 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 18:16:27,300 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 18:16:27,302 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 18:16:27,303 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 18:16:27,304 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-21 18:16:27,349 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 18:16:27,349 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 18:16:27,350 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 18:16:27,350 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 18:16:27,352 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 18:16:27,352 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 18:16:27,352 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 18:16:27,352 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 18:16:27,353 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 18:16:27,353 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 18:16:27,354 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 18:16:27,354 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 18:16:27,354 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 18:16:27,354 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-21 18:16:27,355 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-21 18:16:27,355 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-21 18:16:27,355 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 18:16:27,355 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-21 18:16:27,356 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-21 18:16:27,356 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-21 18:16:27,356 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 18:16:27,356 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 18:16:27,356 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 18:16:27,357 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 18:16:27,357 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 18:16:27,357 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 18:16:27,357 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 18:16:27,358 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 18:16:27,358 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-21 18:16:27,358 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-21 18:16:27,358 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 18:16:27,358 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-21 18:16:27,359 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_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a70da9b875e65dfce1d24d9896f28c8f06f4c5903acb198968ef49c3c899dd06 [2021-10-21 18:16:27,777 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 18:16:27,804 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 18:16:27,807 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 18:16:27,808 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 18:16:27,809 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 18:16:27,811 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/ldv-memsafety/memleaks_test14_1.i [2021-10-21 18:16:27,903 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be/data/8f3da42ac/929fa9e894f143e5871b3e218c697f60/FLAGdadeef71b [2021-10-21 18:16:28,600 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 18:16:28,600 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/sv-benchmarks/c/ldv-memsafety/memleaks_test14_1.i [2021-10-21 18:16:28,621 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be/data/8f3da42ac/929fa9e894f143e5871b3e218c697f60/FLAGdadeef71b [2021-10-21 18:16:28,834 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be/data/8f3da42ac/929fa9e894f143e5871b3e218c697f60 [2021-10-21 18:16:28,836 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 18:16:28,837 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-21 18:16:28,839 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 18:16:28,839 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 18:16:28,843 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 18:16:28,843 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 06:16:28" (1/1) ... [2021-10-21 18:16:28,845 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72641861 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:16:28, skipping insertion in model container [2021-10-21 18:16:28,845 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 06:16:28" (1/1) ... [2021-10-21 18:16:28,852 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 18:16:28,906 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 18:16:29,312 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 18:16:29,329 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-21 18:16:29,342 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 18:16:29,434 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 18:16:29,442 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 18:16:29,497 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 18:16:29,542 INFO L208 MainTranslator]: Completed translation [2021-10-21 18:16:29,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:16:29 WrapperNode [2021-10-21 18:16:29,543 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 18:16:29,544 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 18:16:29,544 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 18:16:29,544 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 18:16:29,556 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:16:29" (1/1) ... [2021-10-21 18:16:29,557 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:16:29" (1/1) ... [2021-10-21 18:16:29,583 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:16:29" (1/1) ... [2021-10-21 18:16:29,583 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:16:29" (1/1) ... [2021-10-21 18:16:29,628 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:16:29" (1/1) ... [2021-10-21 18:16:29,635 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:16:29" (1/1) ... [2021-10-21 18:16:29,642 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:16:29" (1/1) ... [2021-10-21 18:16:29,654 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 18:16:29,655 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 18:16:29,655 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 18:16:29,655 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 18:16:29,656 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:16:29" (1/1) ... [2021-10-21 18:16:29,674 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 18:16:29,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 18:16:29,699 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-21 18:16:29,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-21 18:16:29,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-21 18:16:29,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 18:16:29,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-10-21 18:16:29,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-10-21 18:16:29,749 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-10-21 18:16:29,751 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-10-21 18:16:29,751 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-10-21 18:16:29,751 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-10-21 18:16:29,752 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-10-21 18:16:29,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-10-21 18:16:29,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-10-21 18:16:29,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-10-21 18:16:29,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-10-21 18:16:29,764 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-10-21 18:16:29,765 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-10-21 18:16:29,765 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-10-21 18:16:29,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-10-21 18:16:29,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-10-21 18:16:29,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-10-21 18:16:29,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-10-21 18:16:29,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-10-21 18:16:29,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-10-21 18:16:29,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-10-21 18:16:29,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-10-21 18:16:29,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-10-21 18:16:29,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-10-21 18:16:29,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-10-21 18:16:29,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-10-21 18:16:29,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-10-21 18:16:29,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-10-21 18:16:29,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-10-21 18:16:29,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-10-21 18:16:29,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-10-21 18:16:29,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-10-21 18:16:29,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-10-21 18:16:29,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-10-21 18:16:29,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-10-21 18:16:29,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-10-21 18:16:29,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-10-21 18:16:29,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-10-21 18:16:29,768 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-10-21 18:16:29,768 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-10-21 18:16:29,769 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_14 [2021-10-21 18:16:29,769 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-10-21 18:16:29,769 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-21 18:16:29,769 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-10-21 18:16:29,770 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-10-21 18:16:29,770 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-10-21 18:16:29,771 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-10-21 18:16:29,771 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-10-21 18:16:29,771 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-10-21 18:16:29,771 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-10-21 18:16:29,771 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-10-21 18:16:29,771 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-10-21 18:16:29,772 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-10-21 18:16:29,772 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-10-21 18:16:29,772 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-10-21 18:16:29,772 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-10-21 18:16:29,772 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-10-21 18:16:29,773 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-10-21 18:16:29,773 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-10-21 18:16:29,773 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-10-21 18:16:29,774 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-10-21 18:16:29,774 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-10-21 18:16:29,775 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-10-21 18:16:29,775 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-10-21 18:16:29,775 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-10-21 18:16:29,775 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-10-21 18:16:29,775 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-10-21 18:16:29,775 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-10-21 18:16:29,775 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-10-21 18:16:29,776 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-10-21 18:16:29,776 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-10-21 18:16:29,776 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-10-21 18:16:29,776 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-10-21 18:16:29,776 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-10-21 18:16:29,776 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-10-21 18:16:29,777 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-10-21 18:16:29,777 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-10-21 18:16:29,777 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-10-21 18:16:29,777 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-10-21 18:16:29,777 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-10-21 18:16:29,778 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-10-21 18:16:29,778 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-10-21 18:16:29,778 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-10-21 18:16:29,778 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-10-21 18:16:29,778 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-10-21 18:16:29,778 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-10-21 18:16:29,778 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-10-21 18:16:29,778 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-10-21 18:16:29,778 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-10-21 18:16:29,779 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-10-21 18:16:29,779 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-10-21 18:16:29,779 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-10-21 18:16:29,779 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-10-21 18:16:29,779 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-10-21 18:16:29,779 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-10-21 18:16:29,780 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-10-21 18:16:29,780 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-10-21 18:16:29,780 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-10-21 18:16:29,781 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-10-21 18:16:29,781 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-10-21 18:16:29,781 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-10-21 18:16:29,781 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-10-21 18:16:29,781 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-10-21 18:16:29,781 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-10-21 18:16:29,781 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-10-21 18:16:29,781 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-10-21 18:16:29,781 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-10-21 18:16:29,782 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-10-21 18:16:29,782 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-10-21 18:16:29,782 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-21 18:16:29,782 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-10-21 18:16:29,782 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-10-21 18:16:29,782 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-10-21 18:16:29,782 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-10-21 18:16:29,782 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-10-21 18:16:29,782 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-10-21 18:16:29,783 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-10-21 18:16:29,783 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-10-21 18:16:29,783 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-10-21 18:16:29,783 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-10-21 18:16:29,784 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-10-21 18:16:29,785 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-10-21 18:16:29,787 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-10-21 18:16:29,787 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-10-21 18:16:29,787 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-10-21 18:16:29,788 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-10-21 18:16:29,789 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-10-21 18:16:29,789 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-10-21 18:16:29,789 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-10-21 18:16:29,789 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-10-21 18:16:29,790 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-10-21 18:16:29,795 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-10-21 18:16:29,796 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-10-21 18:16:29,796 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-10-21 18:16:29,796 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-10-21 18:16:29,796 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-10-21 18:16:29,796 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-10-21 18:16:29,796 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-10-21 18:16:29,796 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-10-21 18:16:29,796 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-10-21 18:16:29,796 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-10-21 18:16:29,797 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-10-21 18:16:29,797 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-10-21 18:16:29,797 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-10-21 18:16:29,797 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-10-21 18:16:29,797 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-10-21 18:16:29,797 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-10-21 18:16:29,797 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-10-21 18:16:29,797 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-10-21 18:16:29,797 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-10-21 18:16:29,798 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-10-21 18:16:29,798 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-10-21 18:16:29,798 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-10-21 18:16:29,798 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-10-21 18:16:29,798 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-21 18:16:29,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-10-21 18:16:29,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-10-21 18:16:29,798 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-10-21 18:16:29,798 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-10-21 18:16:29,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-10-21 18:16:29,799 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-21 18:16:29,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-10-21 18:16:29,799 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-10-21 18:16:29,799 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-10-21 18:16:29,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-21 18:16:29,799 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-10-21 18:16:29,799 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-10-21 18:16:29,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-10-21 18:16:29,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-21 18:16:29,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-10-21 18:16:29,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-10-21 18:16:29,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-10-21 18:16:29,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-10-21 18:16:29,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-10-21 18:16:29,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-10-21 18:16:29,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-21 18:16:29,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-10-21 18:16:29,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-10-21 18:16:29,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-10-21 18:16:29,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-10-21 18:16:29,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-10-21 18:16:29,801 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-21 18:16:29,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-21 18:16:29,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-10-21 18:16:29,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-10-21 18:16:29,801 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-10-21 18:16:29,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-10-21 18:16:29,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-10-21 18:16:29,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-10-21 18:16:29,802 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-10-21 18:16:29,802 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-10-21 18:16:29,802 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-10-21 18:16:29,802 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-10-21 18:16:29,802 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-10-21 18:16:29,802 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-10-21 18:16:29,802 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-10-21 18:16:29,802 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-10-21 18:16:29,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-10-21 18:16:29,803 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-10-21 18:16:29,803 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-10-21 18:16:29,803 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_14 [2021-10-21 18:16:29,803 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-10-21 18:16:29,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 18:16:29,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-21 18:16:29,803 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-21 18:16:29,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-21 18:16:29,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 18:16:29,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-10-21 18:16:29,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-10-21 18:16:29,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-10-21 18:16:29,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-10-21 18:16:29,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-10-21 18:16:30,350 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-21 18:16:30,804 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-21 18:16:31,078 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 18:16:31,079 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-10-21 18:16:31,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 06:16:31 BoogieIcfgContainer [2021-10-21 18:16:31,081 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 18:16:31,083 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-21 18:16:31,083 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-21 18:16:31,087 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-21 18:16:31,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 06:16:28" (1/3) ... [2021-10-21 18:16:31,088 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ba4fdca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 06:16:31, skipping insertion in model container [2021-10-21 18:16:31,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 06:16:29" (2/3) ... [2021-10-21 18:16:31,088 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ba4fdca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 06:16:31, skipping insertion in model container [2021-10-21 18:16:31,089 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 06:16:31" (3/3) ... [2021-10-21 18:16:31,090 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test14_1.i [2021-10-21 18:16:31,095 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-21 18:16:31,096 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 71 error locations. [2021-10-21 18:16:31,141 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-21 18:16:31,147 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-21 18:16:31,147 INFO L340 AbstractCegarLoop]: Starting to check reachability of 71 error locations. [2021-10-21 18:16:31,164 INFO L276 IsEmpty]: Start isEmpty. Operand has 126 states, 68 states have (on average 1.5147058823529411) internal successors, (103), 97 states have internal predecessors, (103), 14 states have call successors, (14), 13 states have call predecessors, (14), 13 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2021-10-21 18:16:31,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-21 18:16:31,172 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 18:16:31,172 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 18:16:31,173 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_list_addErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-21 18:16:31,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 18:16:31,178 INFO L82 PathProgramCache]: Analyzing trace with hash 897974978, now seen corresponding path program 1 times [2021-10-21 18:16:31,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 18:16:31,198 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1165249777] [2021-10-21 18:16:31,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 18:16:31,199 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 18:16:31,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 18:16:31,208 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 18:16:31,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-21 18:16:31,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 18:16:31,444 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-21 18:16:31,449 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 18:16:31,570 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-21 18:16:31,741 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-10-21 18:16:31,742 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 19 treesize of output 24 [2021-10-21 18:16:31,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 18:16:31,861 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 18:16:32,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 18:16:32,227 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 18:16:32,228 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1165249777] [2021-10-21 18:16:32,228 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1165249777] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 18:16:32,229 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 18:16:32,229 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 7] imperfect sequences [] total 9 [2021-10-21 18:16:32,231 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849800178] [2021-10-21 18:16:32,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-21 18:16:32,236 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 18:16:32,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-21 18:16:32,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-10-21 18:16:32,252 INFO L87 Difference]: Start difference. First operand has 126 states, 68 states have (on average 1.5147058823529411) internal successors, (103), 97 states have internal predecessors, (103), 14 states have call successors, (14), 13 states have call predecessors, (14), 13 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 10 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 3 states have call successors, (7), 5 states have call predecessors, (7), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-21 18:16:32,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 18:16:32,969 INFO L93 Difference]: Finished difference Result 57 states and 60 transitions. [2021-10-21 18:16:32,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-21 18:16:32,971 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 3 states have call successors, (7), 5 states have call predecessors, (7), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 19 [2021-10-21 18:16:32,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 18:16:32,980 INFO L225 Difference]: With dead ends: 57 [2021-10-21 18:16:32,980 INFO L226 Difference]: Without dead ends: 54 [2021-10-21 18:16:32,982 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 21 SyntacticMatches, 8 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 422.4ms TimeCoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2021-10-21 18:16:32,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-10-21 18:16:33,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 46. [2021-10-21 18:16:33,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 33 states have internal predecessors, (34), 7 states have call successors, (7), 7 states have call predecessors, (7), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-10-21 18:16:33,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 47 transitions. [2021-10-21 18:16:33,019 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 47 transitions. Word has length 19 [2021-10-21 18:16:33,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 18:16:33,020 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 47 transitions. [2021-10-21 18:16:33,020 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 3 states have call successors, (7), 5 states have call predecessors, (7), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-21 18:16:33,021 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 47 transitions. [2021-10-21 18:16:33,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-21 18:16:33,021 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 18:16:33,022 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 18:16:33,037 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-21 18:16:33,232 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 18:16:33,233 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_list_addErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-21 18:16:33,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 18:16:33,234 INFO L82 PathProgramCache]: Analyzing trace with hash 897974979, now seen corresponding path program 1 times [2021-10-21 18:16:33,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 18:16:33,234 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1358166854] [2021-10-21 18:16:33,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 18:16:33,234 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 18:16:33,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 18:16:33,240 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 18:16:33,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-21 18:16:33,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 18:16:33,459 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-21 18:16:33,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 18:16:33,497 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-21 18:16:33,507 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-21 18:16:35,805 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-10-21 18:16:35,806 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 31 treesize of output 33 [2021-10-21 18:16:35,818 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-21 18:16:35,818 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 25 treesize of output 25 [2021-10-21 18:16:35,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 18:16:35,985 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 18:16:46,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 18:16:46,892 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 18:16:46,893 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1358166854] [2021-10-21 18:16:46,893 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1358166854] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 18:16:46,893 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 18:16:46,893 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 17 [2021-10-21 18:16:46,893 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921763516] [2021-10-21 18:16:46,895 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-10-21 18:16:46,895 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 18:16:46,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-21 18:16:46,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=259, Unknown=4, NotChecked=0, Total=306 [2021-10-21 18:16:46,897 INFO L87 Difference]: Start difference. First operand 46 states and 47 transitions. Second operand has 18 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 14 states have internal predecessors, (20), 7 states have call successors, (9), 7 states have call predecessors, (9), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-10-21 18:18:38,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 18:18:38,238 INFO L93 Difference]: Finished difference Result 59 states and 61 transitions. [2021-10-21 18:18:38,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-21 18:18:38,240 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 14 states have internal predecessors, (20), 7 states have call successors, (9), 7 states have call predecessors, (9), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 19 [2021-10-21 18:18:38,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 18:18:38,242 INFO L225 Difference]: With dead ends: 59 [2021-10-21 18:18:38,242 INFO L226 Difference]: Without dead ends: 59 [2021-10-21 18:18:38,243 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 32729.1ms TimeCoverageRelationStatistics Valid=125, Invalid=617, Unknown=14, NotChecked=0, Total=756 [2021-10-21 18:18:38,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2021-10-21 18:18:38,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 45. [2021-10-21 18:18:38,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 23 states have (on average 1.434782608695652) internal successors, (33), 32 states have internal predecessors, (33), 7 states have call successors, (7), 7 states have call predecessors, (7), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-10-21 18:18:38,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 46 transitions. [2021-10-21 18:18:38,250 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 46 transitions. Word has length 19 [2021-10-21 18:18:38,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 18:18:38,251 INFO L470 AbstractCegarLoop]: Abstraction has 45 states and 46 transitions. [2021-10-21 18:18:38,251 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 14 states have internal predecessors, (20), 7 states have call successors, (9), 7 states have call predecessors, (9), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-10-21 18:18:38,251 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 46 transitions. [2021-10-21 18:18:38,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-21 18:18:38,252 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 18:18:38,252 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 18:18:38,263 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-10-21 18:18:38,452 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 18:18:38,453 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __ldv_list_addErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-21 18:18:38,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 18:18:38,453 INFO L82 PathProgramCache]: Analyzing trace with hash -1778354730, now seen corresponding path program 1 times [2021-10-21 18:18:38,454 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 18:18:38,454 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [127346854] [2021-10-21 18:18:38,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 18:18:38,454 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 18:18:38,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 18:18:38,455 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 18:18:38,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-21 18:18:38,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 18:18:38,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-21 18:18:38,660 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 18:18:38,932 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 22 treesize of output 14 [2021-10-21 18:18:39,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 18:18:39,063 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 18:18:39,173 INFO L354 Elim1Store]: treesize reduction 5, result has 58.3 percent of original size [2021-10-21 18:18:39,173 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 21 treesize of output 20 [2021-10-21 18:18:39,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 18:18:39,264 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 18:18:39,264 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [127346854] [2021-10-21 18:18:39,265 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [127346854] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 18:18:39,265 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 18:18:39,265 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 9] imperfect sequences [] total 10 [2021-10-21 18:18:39,265 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734434712] [2021-10-21 18:18:39,266 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-21 18:18:39,266 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 18:18:39,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-21 18:18:39,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-10-21 18:18:39,267 INFO L87 Difference]: Start difference. First operand 45 states and 46 transitions. Second operand has 11 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 4 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-21 18:18:41,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 18:18:41,927 INFO L93 Difference]: Finished difference Result 51 states and 51 transitions. [2021-10-21 18:18:41,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-21 18:18:41,929 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 4 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 22 [2021-10-21 18:18:41,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 18:18:41,930 INFO L225 Difference]: With dead ends: 51 [2021-10-21 18:18:41,930 INFO L226 Difference]: Without dead ends: 51 [2021-10-21 18:18:41,931 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 31 SyntacticMatches, 3 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 477.7ms TimeCoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2021-10-21 18:18:41,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-10-21 18:18:41,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 44. [2021-10-21 18:18:41,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 23 states have (on average 1.391304347826087) internal successors, (32), 31 states have internal predecessors, (32), 7 states have call successors, (7), 7 states have call predecessors, (7), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-10-21 18:18:41,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 45 transitions. [2021-10-21 18:18:41,939 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 45 transitions. Word has length 22 [2021-10-21 18:18:41,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 18:18:41,939 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 45 transitions. [2021-10-21 18:18:41,939 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 4 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-21 18:18:41,939 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 45 transitions. [2021-10-21 18:18:41,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-21 18:18:41,940 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 18:18:41,941 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 18:18:41,949 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-21 18:18:42,145 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 18:18:42,146 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __ldv_list_addErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-21 18:18:42,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 18:18:42,146 INFO L82 PathProgramCache]: Analyzing trace with hash -1778354729, now seen corresponding path program 1 times [2021-10-21 18:18:42,147 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 18:18:42,147 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [915492787] [2021-10-21 18:18:42,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 18:18:42,147 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 18:18:42,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 18:18:42,148 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 18:18:42,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-21 18:18:42,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 18:18:42,387 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 38 conjunts are in the unsatisfiable core [2021-10-21 18:18:42,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 18:18:42,421 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-21 18:18:42,453 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-21 18:18:42,685 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 32 treesize of output 30 [2021-10-21 18:18:42,695 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 20 treesize of output 18 [2021-10-21 18:18:45,004 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-10-21 18:18:45,004 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 34 treesize of output 36 [2021-10-21 18:18:45,026 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-21 18:18:45,027 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 28 treesize of output 28 [2021-10-21 18:18:45,410 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 34 treesize of output 26 [2021-10-21 18:18:45,417 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 23 treesize of output 15 [2021-10-21 18:18:45,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 18:18:45,590 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 18:18:54,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 18:18:54,176 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 18:18:54,176 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [915492787] [2021-10-21 18:18:54,176 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [915492787] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 18:18:54,176 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 18:18:54,176 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 23 [2021-10-21 18:18:54,176 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412716269] [2021-10-21 18:18:54,177 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-10-21 18:18:54,177 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 18:18:54,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-10-21 18:18:54,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=492, Unknown=2, NotChecked=0, Total=552 [2021-10-21 18:18:54,178 INFO L87 Difference]: Start difference. First operand 44 states and 45 transitions. Second operand has 24 states, 17 states have (on average 1.411764705882353) internal successors, (24), 18 states have internal predecessors, (24), 9 states have call successors, (11), 9 states have call predecessors, (11), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-10-21 18:19:35,273 WARN L207 SmtUtils]: Spent 10.42 s on a formula simplification that was a NOOP. DAG size: 74 [2021-10-21 18:20:26,891 WARN L207 SmtUtils]: Spent 23.44 s on a formula simplification. DAG size of input: 106 DAG size of output: 97 [2021-10-21 18:22:04,414 WARN L207 SmtUtils]: Spent 6.13 s on a formula simplification that was a NOOP. DAG size: 67 [2021-10-21 18:22:59,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 18:22:59,726 INFO L93 Difference]: Finished difference Result 55 states and 58 transitions. [2021-10-21 18:22:59,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-21 18:22:59,728 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 17 states have (on average 1.411764705882353) internal successors, (24), 18 states have internal predecessors, (24), 9 states have call successors, (11), 9 states have call predecessors, (11), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 22 [2021-10-21 18:22:59,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 18:22:59,729 INFO L225 Difference]: With dead ends: 55 [2021-10-21 18:22:59,729 INFO L226 Difference]: Without dead ends: 55 [2021-10-21 18:22:59,730 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 103359.5ms TimeCoverageRelationStatistics Valid=176, Invalid=1216, Unknown=14, NotChecked=0, Total=1406 [2021-10-21 18:22:59,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2021-10-21 18:22:59,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 43. [2021-10-21 18:22:59,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 30 states have internal predecessors, (31), 7 states have call successors, (7), 7 states have call predecessors, (7), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-10-21 18:22:59,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 44 transitions. [2021-10-21 18:22:59,736 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 44 transitions. Word has length 22 [2021-10-21 18:22:59,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 18:22:59,736 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 44 transitions. [2021-10-21 18:22:59,737 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 17 states have (on average 1.411764705882353) internal successors, (24), 18 states have internal predecessors, (24), 9 states have call successors, (11), 9 states have call predecessors, (11), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-10-21 18:22:59,737 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 44 transitions. [2021-10-21 18:22:59,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-21 18:22:59,738 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 18:22:59,738 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 18:22:59,749 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-21 18:22:59,938 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 18:22:59,939 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __ldv_list_addErr2REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-21 18:22:59,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 18:22:59,939 INFO L82 PathProgramCache]: Analyzing trace with hash 705578287, now seen corresponding path program 1 times [2021-10-21 18:22:59,939 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 18:22:59,939 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1645176191] [2021-10-21 18:22:59,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 18:22:59,940 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 18:22:59,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 18:22:59,941 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 18:22:59,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-21 18:23:00,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 18:23:00,178 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-21 18:23:00,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 18:23:00,212 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-21 18:23:00,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 18:23:00,431 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 18:23:00,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 18:23:00,656 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 18:23:00,656 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1645176191] [2021-10-21 18:23:00,657 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1645176191] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 18:23:00,657 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 18:23:00,657 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2021-10-21 18:23:00,657 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259828284] [2021-10-21 18:23:00,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-21 18:23:00,657 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 18:23:00,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-21 18:23:00,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-10-21 18:23:00,658 INFO L87 Difference]: Start difference. First operand 43 states and 44 transitions. Second operand has 9 states, 8 states have (on average 1.75) internal successors, (14), 6 states have internal predecessors, (14), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-21 18:23:01,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 18:23:01,221 INFO L93 Difference]: Finished difference Result 66 states and 68 transitions. [2021-10-21 18:23:01,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-21 18:23:01,222 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.75) internal successors, (14), 6 states have internal predecessors, (14), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 23 [2021-10-21 18:23:01,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 18:23:01,223 INFO L225 Difference]: With dead ends: 66 [2021-10-21 18:23:01,223 INFO L226 Difference]: Without dead ends: 66 [2021-10-21 18:23:01,224 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 32 SyntacticMatches, 6 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 305.2ms TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-10-21 18:23:01,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2021-10-21 18:23:01,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 60. [2021-10-21 18:23:01,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 36 states have (on average 1.3333333333333333) internal successors, (48), 43 states have internal predecessors, (48), 9 states have call successors, (9), 9 states have call predecessors, (9), 9 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2021-10-21 18:23:01,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 66 transitions. [2021-10-21 18:23:01,233 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 66 transitions. Word has length 23 [2021-10-21 18:23:01,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 18:23:01,234 INFO L470 AbstractCegarLoop]: Abstraction has 60 states and 66 transitions. [2021-10-21 18:23:01,234 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.75) internal successors, (14), 6 states have internal predecessors, (14), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-21 18:23:01,234 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 66 transitions. [2021-10-21 18:23:01,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-21 18:23:01,235 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 18:23:01,235 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 18:23:01,248 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-21 18:23:01,445 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 18:23:01,445 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __ldv_list_addErr3REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-21 18:23:01,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 18:23:01,446 INFO L82 PathProgramCache]: Analyzing trace with hash 705578288, now seen corresponding path program 1 times [2021-10-21 18:23:01,446 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 18:23:01,446 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [440382273] [2021-10-21 18:23:01,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 18:23:01,446 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 18:23:01,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 18:23:01,447 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 18:23:01,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-21 18:23:01,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 18:23:01,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-21 18:23:01,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 18:23:01,727 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-21 18:23:02,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 18:23:02,101 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 18:23:03,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 18:23:03,273 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 18:23:03,273 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [440382273] [2021-10-21 18:23:03,273 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [440382273] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 18:23:03,273 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 18:23:03,273 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 17 [2021-10-21 18:23:03,273 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86942554] [2021-10-21 18:23:03,274 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-10-21 18:23:03,274 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 18:23:03,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-21 18:23:03,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2021-10-21 18:23:03,275 INFO L87 Difference]: Start difference. First operand 60 states and 66 transitions. Second operand has 18 states, 17 states have (on average 1.411764705882353) internal successors, (24), 12 states have internal predecessors, (24), 5 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-21 18:23:04,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 18:23:04,619 INFO L93 Difference]: Finished difference Result 64 states and 66 transitions. [2021-10-21 18:23:04,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-21 18:23:04,621 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 1.411764705882353) internal successors, (24), 12 states have internal predecessors, (24), 5 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 23 [2021-10-21 18:23:04,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 18:23:04,622 INFO L225 Difference]: With dead ends: 64 [2021-10-21 18:23:04,622 INFO L226 Difference]: Without dead ends: 64 [2021-10-21 18:23:04,622 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1209.3ms TimeCoverageRelationStatistics Valid=59, Invalid=361, Unknown=0, NotChecked=0, Total=420 [2021-10-21 18:23:04,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-10-21 18:23:04,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 60. [2021-10-21 18:23:04,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 36 states have (on average 1.2777777777777777) internal successors, (46), 43 states have internal predecessors, (46), 9 states have call successors, (9), 9 states have call predecessors, (9), 9 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2021-10-21 18:23:04,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 64 transitions. [2021-10-21 18:23:04,629 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 64 transitions. Word has length 23 [2021-10-21 18:23:04,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 18:23:04,630 INFO L470 AbstractCegarLoop]: Abstraction has 60 states and 64 transitions. [2021-10-21 18:23:04,630 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 1.411764705882353) internal successors, (24), 12 states have internal predecessors, (24), 5 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-21 18:23:04,630 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 64 transitions. [2021-10-21 18:23:04,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-21 18:23:04,631 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 18:23:04,631 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 18:23:04,640 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-21 18:23:04,833 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 18:23:04,834 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __ldv_list_addErr2REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-21 18:23:04,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 18:23:04,834 INFO L82 PathProgramCache]: Analyzing trace with hash 834661006, now seen corresponding path program 1 times [2021-10-21 18:23:04,834 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 18:23:04,835 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1011662253] [2021-10-21 18:23:04,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 18:23:04,835 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 18:23:04,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 18:23:04,837 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 18:23:04,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-21 18:23:05,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 18:23:05,074 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-21 18:23:05,075 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 18:23:05,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 18:23:05,210 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 18:23:05,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 18:23:05,362 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 18:23:05,362 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1011662253] [2021-10-21 18:23:05,362 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1011662253] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 18:23:05,362 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 18:23:05,362 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-21 18:23:05,362 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519859856] [2021-10-21 18:23:05,363 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-21 18:23:05,363 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 18:23:05,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 18:23:05,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 18:23:05,363 INFO L87 Difference]: Start difference. First operand 60 states and 64 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-21 18:23:05,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 18:23:05,386 INFO L93 Difference]: Finished difference Result 45 states and 46 transitions. [2021-10-21 18:23:05,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 18:23:05,390 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 23 [2021-10-21 18:23:05,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 18:23:05,391 INFO L225 Difference]: With dead ends: 45 [2021-10-21 18:23:05,391 INFO L226 Difference]: Without dead ends: 45 [2021-10-21 18:23:05,392 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 46.9ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 18:23:05,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-10-21 18:23:05,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 43. [2021-10-21 18:23:05,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 26 states have (on average 1.1538461538461537) internal successors, (30), 29 states have internal predecessors, (30), 7 states have call successors, (7), 7 states have call predecessors, (7), 7 states have return successors, (7), 7 states have call predecessors, (7), 6 states have call successors, (7) [2021-10-21 18:23:05,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 44 transitions. [2021-10-21 18:23:05,396 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 44 transitions. Word has length 23 [2021-10-21 18:23:05,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 18:23:05,397 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 44 transitions. [2021-10-21 18:23:05,397 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-21 18:23:05,397 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 44 transitions. [2021-10-21 18:23:05,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-21 18:23:05,398 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 18:23:05,398 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 18:23:05,406 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-21 18:23:05,601 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 18:23:05,603 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-21 18:23:05,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 18:23:05,603 INFO L82 PathProgramCache]: Analyzing trace with hash -1497151, now seen corresponding path program 1 times [2021-10-21 18:23:05,603 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 18:23:05,604 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1663526923] [2021-10-21 18:23:05,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 18:23:05,604 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 18:23:05,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 18:23:05,605 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 18:23:05,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-21 18:23:05,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 18:23:05,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 18:23:05,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 18:23:05,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 18:23:05,980 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 18:23:06,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 18:23:06,182 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 18:23:06,182 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1663526923] [2021-10-21 18:23:06,182 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1663526923] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 18:23:06,182 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 18:23:06,182 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-21 18:23:06,183 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548034448] [2021-10-21 18:23:06,183 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-21 18:23:06,183 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 18:23:06,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 18:23:06,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 18:23:06,184 INFO L87 Difference]: Start difference. First operand 43 states and 44 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 1 states have call successors, (4) [2021-10-21 18:23:06,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 18:23:06,205 INFO L93 Difference]: Finished difference Result 45 states and 45 transitions. [2021-10-21 18:23:06,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 18:23:06,205 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 1 states have call successors, (4) Word has length 22 [2021-10-21 18:23:06,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 18:23:06,206 INFO L225 Difference]: With dead ends: 45 [2021-10-21 18:23:06,206 INFO L226 Difference]: Without dead ends: 45 [2021-10-21 18:23:06,207 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 37.7ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 18:23:06,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-10-21 18:23:06,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 43. [2021-10-21 18:23:06,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 26 states have (on average 1.1153846153846154) internal successors, (29), 29 states have internal predecessors, (29), 7 states have call successors, (7), 7 states have call predecessors, (7), 7 states have return successors, (7), 7 states have call predecessors, (7), 6 states have call successors, (7) [2021-10-21 18:23:06,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 43 transitions. [2021-10-21 18:23:06,211 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 43 transitions. Word has length 22 [2021-10-21 18:23:06,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 18:23:06,212 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 43 transitions. [2021-10-21 18:23:06,212 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 1 states have call successors, (4) [2021-10-21 18:23:06,212 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 43 transitions. [2021-10-21 18:23:06,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-21 18:23:06,213 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 18:23:06,213 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 18:23:06,226 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-10-21 18:23:06,421 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 18:23:06,422 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 67 more)] === [2021-10-21 18:23:06,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 18:23:06,422 INFO L82 PathProgramCache]: Analyzing trace with hash -1798448510, now seen corresponding path program 1 times [2021-10-21 18:23:06,422 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 18:23:06,422 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1234406159] [2021-10-21 18:23:06,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 18:23:06,423 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 18:23:06,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 18:23:06,424 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 18:23:06,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-21 18:23:06,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 18:23:06,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-21 18:23:06,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 18:23:06,693 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-10-21 18:23:06,694 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2021-10-21 18:23:11,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 18:23:11,197 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 18:23:23,045 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 18:23:23,045 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1234406159] [2021-10-21 18:23:23,046 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(= (store |v_old(#valid)_BEFORE_CALL_5| |v_entry_point_~#list_14~0.base_20| (_ bv0 1)) v_prenex_3)=(= (select (store |v_old(#valid)_BEFORE_CALL_5| |v_entry_point_~#list_14~0.base_20| (_ bv0 1)) v_antiDerIndex_entry0_1) (select v_prenex_3 v_antiDerIndex_entry0_1))} [2021-10-21 18:23:23,046 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [113428236] [2021-10-21 18:23:23,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 18:23:23,046 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-21 18:23:23,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be/cvc4 [2021-10-21 18:23:23,048 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-21 18:23:23,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2021-10-21 18:23:23,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 18:23:23,452 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-21 18:23:23,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 18:23:23,505 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-10-21 18:23:23,506 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 28 [2021-10-21 18:23:23,705 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 9 treesize of output 3 [2021-10-21 18:23:27,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 18:23:27,940 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 18:23:28,118 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 24 treesize of output 18 [2021-10-21 18:23:38,974 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(= (store |v_old(#valid)_BEFORE_CALL_10| |v_entry_point_~#list_14~0.base_20| (_ bv0 1)) v_prenex_7)=(= (select (store |v_old(#valid)_BEFORE_CALL_10| |v_entry_point_~#list_14~0.base_20| (_ bv0 1)) v_antiDerIndex_entry0_2) (select v_prenex_7 v_antiDerIndex_entry0_2))} [2021-10-21 18:23:38,974 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [155121721] [2021-10-21 18:23:38,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 18:23:38,975 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 18:23:38,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 18:23:38,976 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 18:23:38,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-10-21 18:23:39,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 18:23:39,288 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-21 18:23:39,289 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 18:23:43,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 18:23:43,526 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 18:23:47,798 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_14| (Array (_ BitVec 32) (_ BitVec 1)))) (or (= |v_old(#valid)_BEFORE_CALL_14| |c_#valid|) (exists ((|v_entry_point_~#list_14~0.base_20| (_ BitVec 32))) (and (not (= |v_old(#valid)_BEFORE_CALL_14| (store |c_old(#valid)| |v_entry_point_~#list_14~0.base_20| (_ bv0 1)))) (= (_ bv0 1) (select |c_old(#valid)| |v_entry_point_~#list_14~0.base_20|)))))) is different from false [2021-10-21 18:23:52,205 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(= (store |v_old(#valid)_BEFORE_CALL_15| |v_entry_point_~#list_14~0.base_20| (_ bv0 1)) v_prenex_9)=(= (select v_prenex_9 v_antiDerIndex_entry0_3) (select (store |v_old(#valid)_BEFORE_CALL_15| |v_entry_point_~#list_14~0.base_20| (_ bv0 1)) v_antiDerIndex_entry0_3))} [2021-10-21 18:23:52,205 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-10-21 18:23:52,205 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-10-21 18:23:52,205 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-10-21 18:23:52,205 INFO L626 BasicCegarLoop]: Counterexample might be feasible [2021-10-21 18:23:52,211 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-10-21 18:23:52,213 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION [2021-10-21 18:23:52,213 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION [2021-10-21 18:23:52,213 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION [2021-10-21 18:23:52,213 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION [2021-10-21 18:23:52,214 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION [2021-10-21 18:23:52,214 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION [2021-10-21 18:23:52,214 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION [2021-10-21 18:23:52,214 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION [2021-10-21 18:23:52,214 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION [2021-10-21 18:23:52,214 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION [2021-10-21 18:23:52,215 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION [2021-10-21 18:23:52,215 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION [2021-10-21 18:23:52,215 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION [2021-10-21 18:23:52,215 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION [2021-10-21 18:23:52,215 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION [2021-10-21 18:23:52,215 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION [2021-10-21 18:23:52,215 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION [2021-10-21 18:23:52,216 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION [2021-10-21 18:23:52,216 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION [2021-10-21 18:23:52,216 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION [2021-10-21 18:23:52,216 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION [2021-10-21 18:23:52,216 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION [2021-10-21 18:23:52,217 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION [2021-10-21 18:23:52,217 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION [2021-10-21 18:23:52,217 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION [2021-10-21 18:23:52,217 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION [2021-10-21 18:23:52,217 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION [2021-10-21 18:23:52,218 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION [2021-10-21 18:23:52,218 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION [2021-10-21 18:23:52,218 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION [2021-10-21 18:23:52,218 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION [2021-10-21 18:23:52,218 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION [2021-10-21 18:23:52,218 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION [2021-10-21 18:23:52,219 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION [2021-10-21 18:23:52,219 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION [2021-10-21 18:23:52,228 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION [2021-10-21 18:23:52,228 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION [2021-10-21 18:23:52,229 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION [2021-10-21 18:23:52,229 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION [2021-10-21 18:23:52,229 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION [2021-10-21 18:23:52,229 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION [2021-10-21 18:23:52,229 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION [2021-10-21 18:23:52,230 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 18:23:52,230 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 18:23:52,230 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 18:23:52,230 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 18:23:52,230 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 18:23:52,231 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 18:23:52,231 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION [2021-10-21 18:23:52,231 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION [2021-10-21 18:23:52,231 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION [2021-10-21 18:23:52,231 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION [2021-10-21 18:23:52,232 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION [2021-10-21 18:23:52,232 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION [2021-10-21 18:23:52,232 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION [2021-10-21 18:23:52,232 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION [2021-10-21 18:23:52,232 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 18:23:52,233 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 18:23:52,233 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 18:23:52,233 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 18:23:52,233 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 18:23:52,233 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 18:23:52,234 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION [2021-10-21 18:23:52,234 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION [2021-10-21 18:23:52,234 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION [2021-10-21 18:23:52,234 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION [2021-10-21 18:23:52,234 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION [2021-10-21 18:23:52,235 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION [2021-10-21 18:23:52,235 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION [2021-10-21 18:23:52,235 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION [2021-10-21 18:23:52,246 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-21 18:23:52,448 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2021-10-21 18:23:52,666 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-10-21 18:23:52,846 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be/cvc4 --incremental --print-success --lang smt,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 18:23:52,852 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-21 18:23:52,854 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-10-21 18:23:52,862 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 06:23:52 BoogieIcfgContainer [2021-10-21 18:23:52,862 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-21 18:23:52,863 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 18:23:52,863 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 18:23:52,863 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 18:23:52,864 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 06:16:31" (3/4) ... [2021-10-21 18:23:52,867 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-21 18:23:52,867 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 18:23:52,868 INFO L168 Benchmark]: Toolchain (without parser) took 444030.15 ms. Allocated memory was 77.6 MB in the beginning and 134.2 MB in the end (delta: 56.6 MB). Free memory was 56.4 MB in the beginning and 98.8 MB in the end (delta: -42.3 MB). Peak memory consumption was 13.8 MB. Max. memory is 16.1 GB. [2021-10-21 18:23:52,868 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 77.6 MB. Free memory is still 58.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 18:23:52,868 INFO L168 Benchmark]: CACSL2BoogieTranslator took 704.53 ms. Allocated memory is still 77.6 MB. Free memory was 56.3 MB in the beginning and 42.2 MB in the end (delta: 14.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-21 18:23:52,869 INFO L168 Benchmark]: Boogie Preprocessor took 109.92 ms. Allocated memory is still 77.6 MB. Free memory was 42.2 MB in the beginning and 37.4 MB in the end (delta: 4.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-21 18:23:52,869 INFO L168 Benchmark]: RCFGBuilder took 1426.69 ms. Allocated memory was 77.6 MB in the beginning and 104.9 MB in the end (delta: 27.3 MB). Free memory was 37.2 MB in the beginning and 68.5 MB in the end (delta: -31.3 MB). Peak memory consumption was 11.9 MB. Max. memory is 16.1 GB. [2021-10-21 18:23:52,870 INFO L168 Benchmark]: TraceAbstraction took 441779.02 ms. Allocated memory was 104.9 MB in the beginning and 134.2 MB in the end (delta: 29.4 MB). Free memory was 68.0 MB in the beginning and 98.8 MB in the end (delta: -30.8 MB). Peak memory consumption was 69.8 MB. Max. memory is 16.1 GB. [2021-10-21 18:23:52,870 INFO L168 Benchmark]: Witness Printer took 4.22 ms. Allocated memory is still 134.2 MB. Free memory was 98.8 MB in the beginning and 98.8 MB in the end (delta: 54.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 18:23:52,872 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 77.6 MB. Free memory is still 58.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 704.53 ms. Allocated memory is still 77.6 MB. Free memory was 56.3 MB in the beginning and 42.2 MB in the end (delta: 14.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 109.92 ms. Allocated memory is still 77.6 MB. Free memory was 42.2 MB in the beginning and 37.4 MB in the end (delta: 4.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1426.69 ms. Allocated memory was 77.6 MB in the beginning and 104.9 MB in the end (delta: 27.3 MB). Free memory was 37.2 MB in the beginning and 68.5 MB in the end (delta: -31.3 MB). Peak memory consumption was 11.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 441779.02 ms. Allocated memory was 104.9 MB in the beginning and 134.2 MB in the end (delta: 29.4 MB). Free memory was 68.0 MB in the beginning and 98.8 MB in the end (delta: -30.8 MB). Peak memory consumption was 69.8 MB. Max. memory is 16.1 GB. * Witness Printer took 4.22 ms. Allocated memory is still 134.2 MB. Free memory was 98.8 MB in the beginning and 98.8 MB in the end (delta: 54.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 771]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: unable to decide satisfiability of path constraint, overapproximation of memtrack at line 771. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L772] CALL entry_point() [L768] struct ldv_list_head list_14 = { &(list_14), &(list_14) }; [L769] CALL alloc_14(&list_14) [L762] CALL, EXPR ldv_malloc(sizeof(struct A14)) [L526] COND FALSE !(__VERIFIER_nondet_int()) [L529] return 0; [L762] RET, EXPR ldv_malloc(sizeof(struct A14)) [L762] struct A14 *p = (struct A14 *)ldv_malloc(sizeof(struct A14)); [L763] COND FALSE !(\read(*p)) [L769] RET alloc_14(&list_14) [L768] struct ldv_list_head list_14 = { &(list_14), &(list_14) }; [L772] RET entry_point() - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 48 procedures, 337 locations, 71 error locations. Started 1 CEGAR loops. OverallTime: 441711.3ms, OverallIterations: 9, TraceHistogramMax: 1, EmptinessCheckTime: 19.4ms, AutomataDifference: 362276.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 12.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 265 SDtfs, 387 SDslu, 1247 SDs, 0 SdLazy, 1688 SolverSat, 154 SolverUnsat, 114 SolverUnknown, 0 SolverNotchecked, 240752.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 381 GetRequests, 237 SyntacticMatches, 17 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 327 ImplicationChecksByTransitivity, 138588.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=126occurred in iteration=0, InterpolantAutomatonStates: 90, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 68.3ms AutomataMinimizationTime, 8 MinimizatonAttempts, 55 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 113.9ms SsaConstructionTime, 360.8ms SatisfiabilityAnalysisTime, 29329.2ms InterpolantComputationTime, 173 NumberOfCodeBlocks, 173 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 330 ConstructedInterpolants, 30 QuantifiedInterpolants, 2755 SizeOfPredicates, 56 NumberOfNonLiveVariables, 1033 ConjunctsInSsa, 125 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-21 18:23:53,021 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1183dded-efc4-485a-bc8e-c9a1c8b46d2a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...