./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test7-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version f8e1c903 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5adfdf7-4a02-496e-b0e7-edc55056926f/bin/uautomizer-IVEQpCNsaX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5adfdf7-4a02-496e-b0e7-edc55056926f/bin/uautomizer-IVEQpCNsaX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5adfdf7-4a02-496e-b0e7-edc55056926f/bin/uautomizer-IVEQpCNsaX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5adfdf7-4a02-496e-b0e7-edc55056926f/bin/uautomizer-IVEQpCNsaX/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test7-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5adfdf7-4a02-496e-b0e7-edc55056926f/bin/uautomizer-IVEQpCNsaX/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5adfdf7-4a02-496e-b0e7-edc55056926f/bin/uautomizer-IVEQpCNsaX --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 bcce9a9edb6d3d97e1dc81d42ff33dae1a3a6c5a4c6632dbb9f71fe2bbff6634 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-f8e1c90 [2021-11-09 10:39:56,152 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-09 10:39:56,154 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-09 10:39:56,203 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-09 10:39:56,204 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-09 10:39:56,208 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-09 10:39:56,210 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-09 10:39:56,214 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-09 10:39:56,217 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-09 10:39:56,222 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-09 10:39:56,224 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-09 10:39:56,225 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-09 10:39:56,226 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-09 10:39:56,229 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-09 10:39:56,231 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-09 10:39:56,235 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-09 10:39:56,237 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-09 10:39:56,238 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-09 10:39:56,240 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-09 10:39:56,248 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-09 10:39:56,249 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-09 10:39:56,251 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-09 10:39:56,254 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-09 10:39:56,255 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-09 10:39:56,264 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-09 10:39:56,265 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-09 10:39:56,265 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-09 10:39:56,267 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-09 10:39:56,268 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-09 10:39:56,270 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-09 10:39:56,271 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-09 10:39:56,272 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-09 10:39:56,274 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-09 10:39:56,275 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-09 10:39:56,277 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-09 10:39:56,277 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-09 10:39:56,278 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-09 10:39:56,278 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-09 10:39:56,278 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-09 10:39:56,279 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-09 10:39:56,280 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-09 10:39:56,281 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5adfdf7-4a02-496e-b0e7-edc55056926f/bin/uautomizer-IVEQpCNsaX/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-11-09 10:39:56,325 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-09 10:39:56,326 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-09 10:39:56,326 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-09 10:39:56,327 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-09 10:39:56,335 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-09 10:39:56,335 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-09 10:39:56,336 INFO L138 SettingsManager]: * Use SBE=true [2021-11-09 10:39:56,336 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-09 10:39:56,336 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-09 10:39:56,336 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-09 10:39:56,337 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-09 10:39:56,338 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-09 10:39:56,338 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-09 10:39:56,338 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-09 10:39:56,339 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-09 10:39:56,339 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-09 10:39:56,339 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-09 10:39:56,339 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-09 10:39:56,340 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-09 10:39:56,340 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-09 10:39:56,340 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-09 10:39:56,340 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-09 10:39:56,341 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-09 10:39:56,341 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 10:39:56,341 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-09 10:39:56,341 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-09 10:39:56,342 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-09 10:39:56,342 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-09 10:39:56,342 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-09 10:39:56,342 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_a5adfdf7-4a02-496e-b0e7-edc55056926f/bin/uautomizer-IVEQpCNsaX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5adfdf7-4a02-496e-b0e7-edc55056926f/bin/uautomizer-IVEQpCNsaX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bcce9a9edb6d3d97e1dc81d42ff33dae1a3a6c5a4c6632dbb9f71fe2bbff6634 [2021-11-09 10:39:56,655 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-09 10:39:56,685 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-09 10:39:56,688 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-09 10:39:56,690 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-09 10:39:56,691 INFO L275 PluginConnector]: CDTParser initialized [2021-11-09 10:39:56,692 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5adfdf7-4a02-496e-b0e7-edc55056926f/bin/uautomizer-IVEQpCNsaX/../../sv-benchmarks/c/ldv-memsafety/memleaks_test7-2.i [2021-11-09 10:39:56,771 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5adfdf7-4a02-496e-b0e7-edc55056926f/bin/uautomizer-IVEQpCNsaX/data/a50a0e172/bad8a4f17fe7446e9e7644b6681e9b29/FLAG4de366b09 [2021-11-09 10:39:57,394 INFO L306 CDTParser]: Found 1 translation units. [2021-11-09 10:39:57,395 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5adfdf7-4a02-496e-b0e7-edc55056926f/sv-benchmarks/c/ldv-memsafety/memleaks_test7-2.i [2021-11-09 10:39:57,420 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5adfdf7-4a02-496e-b0e7-edc55056926f/bin/uautomizer-IVEQpCNsaX/data/a50a0e172/bad8a4f17fe7446e9e7644b6681e9b29/FLAG4de366b09 [2021-11-09 10:39:57,680 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5adfdf7-4a02-496e-b0e7-edc55056926f/bin/uautomizer-IVEQpCNsaX/data/a50a0e172/bad8a4f17fe7446e9e7644b6681e9b29 [2021-11-09 10:39:57,683 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-09 10:39:57,684 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-11-09 10:39:57,686 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-09 10:39:57,686 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-09 10:39:57,700 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-09 10:39:57,701 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:39:57" (1/1) ... [2021-11-09 10:39:57,701 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40a5a82b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:39:57, skipping insertion in model container [2021-11-09 10:39:57,702 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:39:57" (1/1) ... [2021-11-09 10:39:57,711 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-09 10:39:57,785 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-09 10:39:58,275 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 10:39:58,298 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) [2021-11-09 10:39:58,299 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5aeea53d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:39:58, skipping insertion in model container [2021-11-09 10:39:58,299 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-09 10:39:58,300 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-11-09 10:39:58,303 INFO L168 Benchmark]: Toolchain (without parser) took 617.01 ms. Allocated memory is still 100.7 MB. Free memory was 62.0 MB in the beginning and 72.1 MB in the end (delta: -10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-09 10:39:58,305 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 100.7 MB. Free memory was 79.8 MB in the beginning and 79.8 MB in the end (delta: 60.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 10:39:58,306 INFO L168 Benchmark]: CACSL2BoogieTranslator took 613.81 ms. Allocated memory is still 100.7 MB. Free memory was 61.8 MB in the beginning and 72.4 MB in the end (delta: -10.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-09 10:39:58,308 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 100.7 MB. Free memory was 79.8 MB in the beginning and 79.8 MB in the end (delta: 60.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 613.81 ms. Allocated memory is still 100.7 MB. Free memory was 61.8 MB in the beginning and 72.4 MB in the end (delta: -10.6 MB). Peak memory consumption was 10.5 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... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5adfdf7-4a02-496e-b0e7-edc55056926f/bin/uautomizer-IVEQpCNsaX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5adfdf7-4a02-496e-b0e7-edc55056926f/bin/uautomizer-IVEQpCNsaX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5adfdf7-4a02-496e-b0e7-edc55056926f/bin/uautomizer-IVEQpCNsaX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5adfdf7-4a02-496e-b0e7-edc55056926f/bin/uautomizer-IVEQpCNsaX/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test7-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5adfdf7-4a02-496e-b0e7-edc55056926f/bin/uautomizer-IVEQpCNsaX/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5adfdf7-4a02-496e-b0e7-edc55056926f/bin/uautomizer-IVEQpCNsaX --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 bcce9a9edb6d3d97e1dc81d42ff33dae1a3a6c5a4c6632dbb9f71fe2bbff6634 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-f8e1c90 [2021-11-09 10:40:00,653 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-09 10:40:00,656 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-09 10:40:00,705 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-09 10:40:00,706 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-09 10:40:00,712 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-09 10:40:00,714 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-09 10:40:00,722 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-09 10:40:00,725 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-09 10:40:00,732 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-09 10:40:00,734 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-09 10:40:00,736 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-09 10:40:00,737 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-09 10:40:00,739 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-09 10:40:00,742 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-09 10:40:00,747 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-09 10:40:00,749 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-09 10:40:00,752 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-09 10:40:00,756 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-09 10:40:00,761 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-09 10:40:00,765 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-09 10:40:00,767 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-09 10:40:00,771 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-09 10:40:00,772 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-09 10:40:00,778 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-09 10:40:00,779 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-09 10:40:00,779 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-09 10:40:00,782 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-09 10:40:00,782 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-09 10:40:00,783 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-09 10:40:00,784 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-09 10:40:00,785 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-09 10:40:00,787 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-09 10:40:00,788 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-09 10:40:00,790 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-09 10:40:00,790 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-09 10:40:00,807 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-09 10:40:00,807 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-09 10:40:00,807 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-09 10:40:00,808 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-09 10:40:00,809 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-09 10:40:00,810 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5adfdf7-4a02-496e-b0e7-edc55056926f/bin/uautomizer-IVEQpCNsaX/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-11-09 10:40:00,859 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-09 10:40:00,859 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-09 10:40:00,860 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-09 10:40:00,861 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-09 10:40:00,863 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-09 10:40:00,863 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-09 10:40:00,863 INFO L138 SettingsManager]: * Use SBE=true [2021-11-09 10:40:00,863 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-09 10:40:00,864 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-09 10:40:00,864 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-09 10:40:00,865 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-09 10:40:00,865 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-09 10:40:00,866 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-09 10:40:00,866 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-09 10:40:00,866 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-09 10:40:00,866 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-09 10:40:00,866 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-09 10:40:00,867 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-09 10:40:00,867 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-09 10:40:00,867 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-09 10:40:00,867 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-09 10:40:00,868 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-09 10:40:00,868 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-09 10:40:00,868 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-09 10:40:00,868 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-09 10:40:00,869 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 10:40:00,869 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-09 10:40:00,869 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-09 10:40:00,869 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-09 10:40:00,870 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-09 10:40:00,870 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-09 10:40:00,870 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-09 10:40:00,871 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_a5adfdf7-4a02-496e-b0e7-edc55056926f/bin/uautomizer-IVEQpCNsaX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5adfdf7-4a02-496e-b0e7-edc55056926f/bin/uautomizer-IVEQpCNsaX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bcce9a9edb6d3d97e1dc81d42ff33dae1a3a6c5a4c6632dbb9f71fe2bbff6634 [2021-11-09 10:40:01,250 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-09 10:40:01,274 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-09 10:40:01,276 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-09 10:40:01,278 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-09 10:40:01,278 INFO L275 PluginConnector]: CDTParser initialized [2021-11-09 10:40:01,279 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5adfdf7-4a02-496e-b0e7-edc55056926f/bin/uautomizer-IVEQpCNsaX/../../sv-benchmarks/c/ldv-memsafety/memleaks_test7-2.i [2021-11-09 10:40:01,352 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5adfdf7-4a02-496e-b0e7-edc55056926f/bin/uautomizer-IVEQpCNsaX/data/adf0e0531/a5f9b96954124782a6d2d9401dedcc33/FLAG41fad217d [2021-11-09 10:40:02,029 INFO L306 CDTParser]: Found 1 translation units. [2021-11-09 10:40:02,030 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5adfdf7-4a02-496e-b0e7-edc55056926f/sv-benchmarks/c/ldv-memsafety/memleaks_test7-2.i [2021-11-09 10:40:02,051 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5adfdf7-4a02-496e-b0e7-edc55056926f/bin/uautomizer-IVEQpCNsaX/data/adf0e0531/a5f9b96954124782a6d2d9401dedcc33/FLAG41fad217d [2021-11-09 10:40:02,253 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5adfdf7-4a02-496e-b0e7-edc55056926f/bin/uautomizer-IVEQpCNsaX/data/adf0e0531/a5f9b96954124782a6d2d9401dedcc33 [2021-11-09 10:40:02,255 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-09 10:40:02,257 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-11-09 10:40:02,258 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-09 10:40:02,258 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-09 10:40:02,267 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-09 10:40:02,268 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:40:02" (1/1) ... [2021-11-09 10:40:02,269 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fb2a193 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:40:02, skipping insertion in model container [2021-11-09 10:40:02,269 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:40:02" (1/1) ... [2021-11-09 10:40:02,277 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-09 10:40:02,318 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-09 10:40:02,744 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 10:40:02,761 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-09 10:40:02,772 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-09 10:40:02,815 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 10:40:02,823 INFO L203 MainTranslator]: Completed pre-run [2021-11-09 10:40:02,871 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 10:40:02,920 INFO L208 MainTranslator]: Completed translation [2021-11-09 10:40:02,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:40:02 WrapperNode [2021-11-09 10:40:02,921 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-09 10:40:02,922 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-09 10:40:02,922 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-09 10:40:02,922 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-09 10:40:02,934 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:40:02" (1/1) ... [2021-11-09 10:40:02,935 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:40:02" (1/1) ... [2021-11-09 10:40:02,959 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:40:02" (1/1) ... [2021-11-09 10:40:02,960 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:40:02" (1/1) ... [2021-11-09 10:40:02,992 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:40:02" (1/1) ... [2021-11-09 10:40:02,999 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:40:02" (1/1) ... [2021-11-09 10:40:03,006 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:40:02" (1/1) ... [2021-11-09 10:40:03,018 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-09 10:40:03,019 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-09 10:40:03,020 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-09 10:40:03,026 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-09 10:40:03,027 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:40:02" (1/1) ... [2021-11-09 10:40:03,034 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 10:40:03,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5adfdf7-4a02-496e-b0e7-edc55056926f/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:40:03,086 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5adfdf7-4a02-496e-b0e7-edc55056926f/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-09 10:40:03,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5adfdf7-4a02-496e-b0e7-edc55056926f/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-09 10:40:03,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-11-09 10:40:03,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-09 10:40:03,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-09 10:40:03,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-11-09 10:40:03,156 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-11-09 10:40:03,158 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-11-09 10:40:03,159 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-11-09 10:40:03,159 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-11-09 10:40:03,159 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-11-09 10:40:03,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-11-09 10:40:03,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-11-09 10:40:03,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-09 10:40:03,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-09 10:40:03,160 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-11-09 10:40:03,160 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-11-09 10:40:03,160 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-11-09 10:40:03,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-11-09 10:40:03,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-11-09 10:40:03,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-11-09 10:40:03,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-11-09 10:40:03,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-11-09 10:40:03,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-11-09 10:40:03,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-11-09 10:40:03,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-11-09 10:40:03,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-11-09 10:40:03,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-09 10:40:03,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-11-09 10:40:03,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-11-09 10:40:03,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-11-09 10:40:03,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-11-09 10:40:03,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-11-09 10:40:03,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-11-09 10:40:03,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-11-09 10:40:03,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-11-09 10:40:03,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-11-09 10:40:03,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-11-09 10:40:03,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-11-09 10:40:03,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-11-09 10:40:03,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-11-09 10:40:03,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-11-09 10:40:03,165 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-11-09 10:40:03,166 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-11-09 10:40:03,166 INFO L138 BoogieDeclarations]: Found implementation of procedure f6 [2021-11-09 10:40:03,166 INFO L138 BoogieDeclarations]: Found implementation of procedure g6 [2021-11-09 10:40:03,167 INFO L138 BoogieDeclarations]: Found implementation of procedure probe1_6 [2021-11-09 10:40:03,167 INFO L138 BoogieDeclarations]: Found implementation of procedure disconnect_6 [2021-11-09 10:40:03,167 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-11-09 10:40:03,168 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-11-09 10:40:03,168 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-09 10:40:03,168 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-09 10:40:03,169 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-09 10:40:03,169 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-11-09 10:40:03,169 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-11-09 10:40:03,169 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-11-09 10:40:03,169 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-11-09 10:40:03,169 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-11-09 10:40:03,170 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-11-09 10:40:03,170 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-11-09 10:40:03,170 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-11-09 10:40:03,171 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-11-09 10:40:03,171 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-11-09 10:40:03,172 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-11-09 10:40:03,173 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-11-09 10:40:03,173 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-11-09 10:40:03,174 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-11-09 10:40:03,174 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-11-09 10:40:03,174 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-11-09 10:40:03,174 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-11-09 10:40:03,175 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-11-09 10:40:03,175 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-11-09 10:40:03,175 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-11-09 10:40:03,175 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-11-09 10:40:03,175 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-11-09 10:40:03,176 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-11-09 10:40:03,176 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-11-09 10:40:03,176 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-11-09 10:40:03,176 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-11-09 10:40:03,176 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-11-09 10:40:03,176 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-11-09 10:40:03,177 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-11-09 10:40:03,177 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-11-09 10:40:03,177 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-11-09 10:40:03,177 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-11-09 10:40:03,178 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-11-09 10:40:03,178 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-11-09 10:40:03,178 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-11-09 10:40:03,179 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-11-09 10:40:03,179 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-11-09 10:40:03,179 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-11-09 10:40:03,179 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-11-09 10:40:03,179 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-11-09 10:40:03,179 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-11-09 10:40:03,180 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-11-09 10:40:03,180 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-11-09 10:40:03,180 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-11-09 10:40:03,180 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-11-09 10:40:03,180 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-11-09 10:40:03,180 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-11-09 10:40:03,181 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-11-09 10:40:03,181 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-11-09 10:40:03,181 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-11-09 10:40:03,182 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-11-09 10:40:03,182 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-11-09 10:40:03,182 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-11-09 10:40:03,182 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-11-09 10:40:03,182 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-11-09 10:40:03,182 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-11-09 10:40:03,183 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-11-09 10:40:03,183 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-11-09 10:40:03,183 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-11-09 10:40:03,183 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-11-09 10:40:03,183 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-11-09 10:40:03,184 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-11-09 10:40:03,184 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-11-09 10:40:03,184 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-11-09 10:40:03,184 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-11-09 10:40:03,184 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-11-09 10:40:03,185 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-11-09 10:40:03,185 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-11-09 10:40:03,185 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-11-09 10:40:03,186 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-11-09 10:40:03,186 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-11-09 10:40:03,187 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-11-09 10:40:03,187 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-11-09 10:40:03,190 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-11-09 10:40:03,190 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-11-09 10:40:03,191 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-11-09 10:40:03,191 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-11-09 10:40:03,192 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-11-09 10:40:03,193 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-11-09 10:40:03,193 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-11-09 10:40:03,193 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-11-09 10:40:03,195 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-11-09 10:40:03,200 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-11-09 10:40:03,200 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-11-09 10:40:03,201 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-11-09 10:40:03,201 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-11-09 10:40:03,201 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-11-09 10:40:03,201 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-11-09 10:40:03,201 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-11-09 10:40:03,201 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-11-09 10:40:03,202 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-11-09 10:40:03,202 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-11-09 10:40:03,202 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-11-09 10:40:03,202 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-11-09 10:40:03,202 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-11-09 10:40:03,202 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-11-09 10:40:03,203 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-11-09 10:40:03,203 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-11-09 10:40:03,203 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-11-09 10:40:03,203 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-11-09 10:40:03,203 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-11-09 10:40:03,203 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-11-09 10:40:03,204 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-11-09 10:40:03,204 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-11-09 10:40:03,204 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-11-09 10:40:03,204 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-11-09 10:40:03,204 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-11-09 10:40:03,204 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-09 10:40:03,205 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-11-09 10:40:03,205 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-11-09 10:40:03,205 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-11-09 10:40:03,205 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-11-09 10:40:03,205 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-11-09 10:40:03,205 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-09 10:40:03,205 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-09 10:40:03,206 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-09 10:40:03,206 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-09 10:40:03,206 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-11-09 10:40:03,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-09 10:40:03,206 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-11-09 10:40:03,206 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-11-09 10:40:03,207 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-11-09 10:40:03,207 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-09 10:40:03,207 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-11-09 10:40:03,207 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-11-09 10:40:03,207 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-11-09 10:40:03,207 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-11-09 10:40:03,208 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-09 10:40:03,208 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-11-09 10:40:03,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-09 10:40:03,208 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-11-09 10:40:03,208 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-11-09 10:40:03,208 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-11-09 10:40:03,209 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-09 10:40:03,209 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-11-09 10:40:03,209 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-09 10:40:03,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-09 10:40:03,209 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-11-09 10:40:03,209 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-11-09 10:40:03,210 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-09 10:40:03,210 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-11-09 10:40:03,210 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-11-09 10:40:03,210 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-11-09 10:40:03,210 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-11-09 10:40:03,210 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-11-09 10:40:03,210 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-11-09 10:40:03,211 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-11-09 10:40:03,211 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-11-09 10:40:03,211 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-11-09 10:40:03,211 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-11-09 10:40:03,211 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-11-09 10:40:03,212 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-09 10:40:03,212 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-11-09 10:40:03,212 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-11-09 10:40:03,212 INFO L130 BoogieDeclarations]: Found specification of procedure f6 [2021-11-09 10:40:03,212 INFO L130 BoogieDeclarations]: Found specification of procedure g6 [2021-11-09 10:40:03,212 INFO L130 BoogieDeclarations]: Found specification of procedure probe1_6 [2021-11-09 10:40:03,212 INFO L130 BoogieDeclarations]: Found specification of procedure disconnect_6 [2021-11-09 10:40:03,213 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-11-09 10:40:03,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-09 10:40:03,213 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-11-09 10:40:03,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-11-09 10:40:03,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-09 10:40:03,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-09 10:40:03,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-11-09 10:40:03,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-09 10:40:03,214 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-09 10:40:03,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-09 10:40:03,214 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-09 10:40:03,864 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-09 10:40:04,262 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-09 10:40:04,673 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-09 10:40:04,676 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-09 10:40:04,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:40:04 BoogieIcfgContainer [2021-11-09 10:40:04,688 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-09 10:40:04,690 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-09 10:40:04,702 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-09 10:40:04,705 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-09 10:40:04,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 10:40:02" (1/3) ... [2021-11-09 10:40:04,706 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5df62ddb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 10:40:04, skipping insertion in model container [2021-11-09 10:40:04,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:40:02" (2/3) ... [2021-11-09 10:40:04,707 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5df62ddb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 10:40:04, skipping insertion in model container [2021-11-09 10:40:04,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:40:04" (3/3) ... [2021-11-09 10:40:04,709 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test7-2.i [2021-11-09 10:40:04,714 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-09 10:40:04,715 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 81 error locations. [2021-11-09 10:40:04,773 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-09 10:40:04,779 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 [2021-11-09 10:40:04,779 INFO L340 AbstractCegarLoop]: Starting to check reachability of 81 error locations. [2021-11-09 10:40:04,796 INFO L276 IsEmpty]: Start isEmpty. Operand has 133 states, 75 states have (on average 1.5066666666666666) internal successors, (113), 104 states have internal predecessors, (113), 15 states have call successors, (15), 14 states have call predecessors, (15), 14 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2021-11-09 10:40:04,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-09 10:40:04,818 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:40:04,819 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:40:04,819 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting disconnect_6Err0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-11-09 10:40:04,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:40:04,825 INFO L85 PathProgramCache]: Analyzing trace with hash -667181762, now seen corresponding path program 1 times [2021-11-09 10:40:04,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-09 10:40:04,842 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2106852537] [2021-11-09 10:40:04,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:40:04,844 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-09 10:40:04,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5adfdf7-4a02-496e-b0e7-edc55056926f/bin/uautomizer-IVEQpCNsaX/mathsat [2021-11-09 10:40:04,856 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5adfdf7-4a02-496e-b0e7-edc55056926f/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-09 10:40:04,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5adfdf7-4a02-496e-b0e7-edc55056926f/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-09 10:40:05,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:40:05,055 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-09 10:40:05,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 10:40:05,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:40:05,182 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-09 10:40:05,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:40:05,351 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-09 10:40:05,352 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2106852537] [2021-11-09 10:40:05,353 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2106852537] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-09 10:40:05,354 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:40:05,354 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-09 10:40:05,356 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927272402] [2021-11-09 10:40:05,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-09 10:40:05,362 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-09 10:40:05,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-09 10:40:05,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-09 10:40:05,382 INFO L87 Difference]: Start difference. First operand has 133 states, 75 states have (on average 1.5066666666666666) internal successors, (113), 104 states have internal predecessors, (113), 15 states have call successors, (15), 14 states have call predecessors, (15), 14 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-09 10:40:05,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:40:05,471 INFO L93 Difference]: Finished difference Result 84 states and 93 transitions. [2021-11-09 10:40:05,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-09 10:40:05,474 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, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 23 [2021-11-09 10:40:05,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:40:05,487 INFO L225 Difference]: With dead ends: 84 [2021-11-09 10:40:05,487 INFO L226 Difference]: Without dead ends: 81 [2021-11-09 10:40:05,489 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-09 10:40:05,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2021-11-09 10:40:05,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 64. [2021-11-09 10:40:05,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 37 states have (on average 1.4054054054054055) internal successors, (52), 48 states have internal predecessors, (52), 8 states have call successors, (8), 8 states have call predecessors, (8), 8 states have return successors, (8), 8 states have call predecessors, (8), 7 states have call successors, (8) [2021-11-09 10:40:05,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 68 transitions. [2021-11-09 10:40:05,532 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 68 transitions. Word has length 23 [2021-11-09 10:40:05,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:40:05,532 INFO L470 AbstractCegarLoop]: Abstraction has 64 states and 68 transitions. [2021-11-09 10:40:05,532 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, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-09 10:40:05,533 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 68 transitions. [2021-11-09 10:40:05,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-09 10:40:05,534 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:40:05,534 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:40:05,547 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5adfdf7-4a02-496e-b0e7-edc55056926f/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-09 10:40:05,744 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5adfdf7-4a02-496e-b0e7-edc55056926f/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 [2021-11-09 10:40:05,745 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting probe1_6Err2ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-11-09 10:40:05,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:40:05,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1260306412, now seen corresponding path program 1 times [2021-11-09 10:40:05,746 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-09 10:40:05,746 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [504536658] [2021-11-09 10:40:05,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:40:05,747 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-09 10:40:05,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5adfdf7-4a02-496e-b0e7-edc55056926f/bin/uautomizer-IVEQpCNsaX/mathsat [2021-11-09 10:40:05,748 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5adfdf7-4a02-496e-b0e7-edc55056926f/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-09 10:40:05,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5adfdf7-4a02-496e-b0e7-edc55056926f/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-09 10:40:05,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:40:05,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-09 10:40:05,933 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 10:40:06,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:40:06,043 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-09 10:40:06,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:40:06,134 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-09 10:40:06,134 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [504536658] [2021-11-09 10:40:06,135 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [504536658] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-09 10:40:06,135 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:40:06,135 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-09 10:40:06,135 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508608746] [2021-11-09 10:40:06,142 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-09 10:40:06,142 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-09 10:40:06,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-09 10:40:06,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-09 10:40:06,145 INFO L87 Difference]: Start difference. First operand 64 states and 68 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-09 10:40:06,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:40:06,180 INFO L93 Difference]: Finished difference Result 63 states and 67 transitions. [2021-11-09 10:40:06,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-09 10:40:06,181 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 23 [2021-11-09 10:40:06,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:40:06,187 INFO L225 Difference]: With dead ends: 63 [2021-11-09 10:40:06,187 INFO L226 Difference]: Without dead ends: 63 [2021-11-09 10:40:06,188 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-09 10:40:06,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2021-11-09 10:40:06,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2021-11-09 10:40:06,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 37 states have (on average 1.3783783783783783) internal successors, (51), 47 states have internal predecessors, (51), 8 states have call successors, (8), 8 states have call predecessors, (8), 8 states have return successors, (8), 8 states have call predecessors, (8), 7 states have call successors, (8) [2021-11-09 10:40:06,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 67 transitions. [2021-11-09 10:40:06,209 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 67 transitions. Word has length 23 [2021-11-09 10:40:06,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:40:06,210 INFO L470 AbstractCegarLoop]: Abstraction has 63 states and 67 transitions. [2021-11-09 10:40:06,210 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-09 10:40:06,211 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 67 transitions. [2021-11-09 10:40:06,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-09 10:40:06,213 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:40:06,213 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:40:06,234 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5adfdf7-4a02-496e-b0e7-edc55056926f/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-09 10:40:06,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5adfdf7-4a02-496e-b0e7-edc55056926f/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 [2021-11-09 10:40:06,430 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting disconnect_6Err0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-11-09 10:40:06,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:40:06,430 INFO L85 PathProgramCache]: Analyzing trace with hash -538099043, now seen corresponding path program 1 times [2021-11-09 10:40:06,431 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-09 10:40:06,431 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [393232416] [2021-11-09 10:40:06,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:40:06,431 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-09 10:40:06,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5adfdf7-4a02-496e-b0e7-edc55056926f/bin/uautomizer-IVEQpCNsaX/mathsat [2021-11-09 10:40:06,432 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5adfdf7-4a02-496e-b0e7-edc55056926f/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-09 10:40:06,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5adfdf7-4a02-496e-b0e7-edc55056926f/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-09 10:40:06,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:40:06,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-09 10:40:06,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 10:40:06,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:40:06,716 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-09 10:40:06,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:40:06,851 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-09 10:40:06,851 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [393232416] [2021-11-09 10:40:06,851 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [393232416] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-09 10:40:06,851 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:40:06,851 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-09 10:40:06,852 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215071012] [2021-11-09 10:40:06,852 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-09 10:40:06,852 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-09 10:40:06,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-09 10:40:06,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-09 10:40:06,854 INFO L87 Difference]: Start difference. First operand 63 states and 67 transitions. Second operand has 10 states, 10 states have (on average 2.0) internal successors, (20), 8 states have internal predecessors, (20), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2021-11-09 10:40:06,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:40:06,924 INFO L93 Difference]: Finished difference Result 77 states and 81 transitions. [2021-11-09 10:40:06,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-09 10:40:06,924 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 8 states have internal predecessors, (20), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) Word has length 23 [2021-11-09 10:40:06,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:40:06,926 INFO L225 Difference]: With dead ends: 77 [2021-11-09 10:40:06,926 INFO L226 Difference]: Without dead ends: 77 [2021-11-09 10:40:06,927 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-11-09 10:40:06,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2021-11-09 10:40:06,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 67. [2021-11-09 10:40:06,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 40 states have (on average 1.35) internal successors, (54), 50 states have internal predecessors, (54), 8 states have call successors, (8), 8 states have call predecessors, (8), 9 states have return successors, (9), 9 states have call predecessors, (9), 7 states have call successors, (9) [2021-11-09 10:40:06,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 71 transitions. [2021-11-09 10:40:06,934 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 71 transitions. Word has length 23 [2021-11-09 10:40:06,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:40:06,934 INFO L470 AbstractCegarLoop]: Abstraction has 67 states and 71 transitions. [2021-11-09 10:40:06,934 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 8 states have internal predecessors, (20), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2021-11-09 10:40:06,935 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 71 transitions. [2021-11-09 10:40:06,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-09 10:40:06,935 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:40:06,936 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:40:06,950 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5adfdf7-4a02-496e-b0e7-edc55056926f/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-09 10:40:07,147 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5adfdf7-4a02-496e-b0e7-edc55056926f/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 [2021-11-09 10:40:07,147 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting probe1_6Err3ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-11-09 10:40:07,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:40:07,148 INFO L85 PathProgramCache]: Analyzing trace with hash -414792645, now seen corresponding path program 1 times [2021-11-09 10:40:07,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-09 10:40:07,148 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [591100136] [2021-11-09 10:40:07,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:40:07,149 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-09 10:40:07,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5adfdf7-4a02-496e-b0e7-edc55056926f/bin/uautomizer-IVEQpCNsaX/mathsat [2021-11-09 10:40:07,150 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5adfdf7-4a02-496e-b0e7-edc55056926f/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-09 10:40:07,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5adfdf7-4a02-496e-b0e7-edc55056926f/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-09 10:40:07,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:40:07,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-09 10:40:07,353 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 10:40:07,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:40:07,734 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-09 10:40:07,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:40:07,909 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-09 10:40:07,910 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [591100136] [2021-11-09 10:40:07,910 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [591100136] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-09 10:40:07,910 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:40:07,910 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 4] imperfect sequences [] total 9 [2021-11-09 10:40:07,910 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019538046] [2021-11-09 10:40:07,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-09 10:40:07,911 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-09 10:40:07,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-09 10:40:07,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-11-09 10:40:07,913 INFO L87 Difference]: Start difference. First operand 67 states and 71 transitions. Second operand has 10 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 8 states have internal predecessors, (30), 4 states have call successors, (11), 3 states have call predecessors, (11), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2021-11-09 10:40:08,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:40:08,320 INFO L93 Difference]: Finished difference Result 111 states and 118 transitions. [2021-11-09 10:40:08,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-09 10:40:08,321 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 8 states have internal predecessors, (30), 4 states have call successors, (11), 3 states have call predecessors, (11), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) Word has length 24 [2021-11-09 10:40:08,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:40:08,322 INFO L225 Difference]: With dead ends: 111 [2021-11-09 10:40:08,322 INFO L226 Difference]: Without dead ends: 111 [2021-11-09 10:40:08,322 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-11-09 10:40:08,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2021-11-09 10:40:08,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 66. [2021-11-09 10:40:08,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 40 states have (on average 1.325) internal successors, (53), 49 states have internal predecessors, (53), 8 states have call successors, (8), 8 states have call predecessors, (8), 9 states have return successors, (9), 9 states have call predecessors, (9), 7 states have call successors, (9) [2021-11-09 10:40:08,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 70 transitions. [2021-11-09 10:40:08,328 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 70 transitions. Word has length 24 [2021-11-09 10:40:08,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:40:08,328 INFO L470 AbstractCegarLoop]: Abstraction has 66 states and 70 transitions. [2021-11-09 10:40:08,328 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 8 states have internal predecessors, (30), 4 states have call successors, (11), 3 states have call predecessors, (11), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2021-11-09 10:40:08,328 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 70 transitions. [2021-11-09 10:40:08,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-09 10:40:08,329 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:40:08,329 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:40:08,339 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5adfdf7-4a02-496e-b0e7-edc55056926f/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-09 10:40:08,536 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5adfdf7-4a02-496e-b0e7-edc55056926f/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 [2021-11-09 10:40:08,536 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting probe1_6Err4ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-11-09 10:40:08,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:40:08,537 INFO L85 PathProgramCache]: Analyzing trace with hash 26330358, now seen corresponding path program 1 times [2021-11-09 10:40:08,537 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-09 10:40:08,537 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [776364034] [2021-11-09 10:40:08,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:40:08,538 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-09 10:40:08,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5adfdf7-4a02-496e-b0e7-edc55056926f/bin/uautomizer-IVEQpCNsaX/mathsat [2021-11-09 10:40:08,540 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5adfdf7-4a02-496e-b0e7-edc55056926f/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-09 10:40:08,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5adfdf7-4a02-496e-b0e7-edc55056926f/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-09 10:40:08,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:40:08,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-09 10:40:08,755 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 10:40:08,814 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 [2021-11-09 10:40:08,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:40:08,919 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-09 10:40:09,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:40:09,018 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-09 10:40:09,018 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [776364034] [2021-11-09 10:40:09,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [776364034] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-09 10:40:09,018 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:40:09,019 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 5 [2021-11-09 10:40:09,019 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145796126] [2021-11-09 10:40:09,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-09 10:40:09,019 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-09 10:40:09,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-09 10:40:09,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-09 10:40:09,020 INFO L87 Difference]: Start difference. First operand 66 states and 70 transitions. Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-09 10:40:09,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:40:09,222 INFO L93 Difference]: Finished difference Result 86 states and 94 transitions. [2021-11-09 10:40:09,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-09 10:40:09,223 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 25 [2021-11-09 10:40:09,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:40:09,225 INFO L225 Difference]: With dead ends: 86 [2021-11-09 10:40:09,225 INFO L226 Difference]: Without dead ends: 86 [2021-11-09 10:40:09,225 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 42 SyntacticMatches, 3 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-09 10:40:09,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2021-11-09 10:40:09,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 75. [2021-11-09 10:40:09,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 47 states have (on average 1.3191489361702127) internal successors, (62), 56 states have internal predecessors, (62), 10 states have call successors, (10), 8 states have call predecessors, (10), 9 states have return successors, (11), 11 states have call predecessors, (11), 9 states have call successors, (11) [2021-11-09 10:40:09,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 83 transitions. [2021-11-09 10:40:09,232 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 83 transitions. Word has length 25 [2021-11-09 10:40:09,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:40:09,232 INFO L470 AbstractCegarLoop]: Abstraction has 75 states and 83 transitions. [2021-11-09 10:40:09,233 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-09 10:40:09,233 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 83 transitions. [2021-11-09 10:40:09,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-09 10:40:09,234 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:40:09,234 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:40:09,255 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5adfdf7-4a02-496e-b0e7-edc55056926f/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-09 10:40:09,447 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5adfdf7-4a02-496e-b0e7-edc55056926f/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 [2021-11-09 10:40:09,448 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-11-09 10:40:09,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:40:09,448 INFO L85 PathProgramCache]: Analyzing trace with hash 498121534, now seen corresponding path program 1 times [2021-11-09 10:40:09,448 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-09 10:40:09,448 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [421747945] [2021-11-09 10:40:09,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:40:09,449 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-09 10:40:09,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5adfdf7-4a02-496e-b0e7-edc55056926f/bin/uautomizer-IVEQpCNsaX/mathsat [2021-11-09 10:40:09,449 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5adfdf7-4a02-496e-b0e7-edc55056926f/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-09 10:40:09,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5adfdf7-4a02-496e-b0e7-edc55056926f/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-09 10:40:09,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:40:09,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-09 10:40:09,658 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 10:40:09,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:40:09,827 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-09 10:40:18,469 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-09 10:40:18,469 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [421747945] [2021-11-09 10:40:18,470 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Shadow problem: [|v_old(#valid)_BEFORE_CALL_4|] [2021-11-09 10:40:18,470 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [472958021] [2021-11-09 10:40:18,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:40:18,470 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-09 10:40:18,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5adfdf7-4a02-496e-b0e7-edc55056926f/bin/uautomizer-IVEQpCNsaX/cvc4 [2021-11-09 10:40:18,476 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5adfdf7-4a02-496e-b0e7-edc55056926f/bin/uautomizer-IVEQpCNsaX/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-09 10:40:18,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5adfdf7-4a02-496e-b0e7-edc55056926f/bin/uautomizer-IVEQpCNsaX/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2021-11-09 10:40:18,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:40:18,870 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-09 10:40:18,872 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 10:40:18,907 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-09 10:40:18,908 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 [2021-11-09 10:40:27,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:40:27,411 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-09 10:40:39,338 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Shadow problem: [|v_old(#valid)_BEFORE_CALL_9|] [2021-11-09 10:40:39,338 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1561666964] [2021-11-09 10:40:39,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:40:39,339 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 10:40:39,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5adfdf7-4a02-496e-b0e7-edc55056926f/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:40:39,344 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5adfdf7-4a02-496e-b0e7-edc55056926f/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 10:40:39,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5adfdf7-4a02-496e-b0e7-edc55056926f/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-09 10:40:39,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:40:39,652 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-09 10:40:39,654 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 10:40:39,692 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-09 10:40:39,692 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 [2021-11-09 10:40:39,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:40:39,982 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-09 10:40:50,624 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Shadow problem: [|v_old(#valid)_BEFORE_CALL_14|] [2021-11-09 10:40:50,624 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:40:50,624 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-11-09 10:40:50,624 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-11-09 10:40:50,624 INFO L627 BasicCegarLoop]: Counterexample might be feasible [2021-11-09 10:40:50,630 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-11-09 10:40:50,632 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION [2021-11-09 10:40:50,632 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION [2021-11-09 10:40:50,632 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION [2021-11-09 10:40:50,632 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION [2021-11-09 10:40:50,633 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION [2021-11-09 10:40:50,633 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION [2021-11-09 10:40:50,633 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION [2021-11-09 10:40:50,633 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION [2021-11-09 10:40:50,633 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION [2021-11-09 10:40:50,633 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION [2021-11-09 10:40:50,633 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION [2021-11-09 10:40:50,633 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION [2021-11-09 10:40:50,634 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION [2021-11-09 10:40:50,634 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION [2021-11-09 10:40:50,634 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION [2021-11-09 10:40:50,634 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION [2021-11-09 10:40:50,634 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION [2021-11-09 10:40:50,634 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION [2021-11-09 10:40:50,634 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION [2021-11-09 10:40:50,635 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION [2021-11-09 10:40:50,635 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION [2021-11-09 10:40:50,635 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION [2021-11-09 10:40:50,635 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION [2021-11-09 10:40:50,635 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION [2021-11-09 10:40:50,635 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION [2021-11-09 10:40:50,635 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION [2021-11-09 10:40:50,636 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION [2021-11-09 10:40:50,636 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION [2021-11-09 10:40:50,636 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION [2021-11-09 10:40:50,636 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION [2021-11-09 10:40:50,636 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION [2021-11-09 10:40:50,636 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION [2021-11-09 10:40:50,636 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION [2021-11-09 10:40:50,637 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION [2021-11-09 10:40:50,637 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION [2021-11-09 10:40:50,637 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION [2021-11-09 10:40:50,637 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION [2021-11-09 10:40:50,637 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION [2021-11-09 10:40:50,637 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION [2021-11-09 10:40:50,637 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION [2021-11-09 10:40:50,638 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION [2021-11-09 10:40:50,638 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION [2021-11-09 10:40:50,638 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE [2021-11-09 10:40:50,638 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE [2021-11-09 10:40:50,638 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE [2021-11-09 10:40:50,639 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE [2021-11-09 10:40:50,639 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE [2021-11-09 10:40:50,639 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE [2021-11-09 10:40:50,639 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION [2021-11-09 10:40:50,639 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION [2021-11-09 10:40:50,639 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION [2021-11-09 10:40:50,640 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION [2021-11-09 10:40:50,640 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION [2021-11-09 10:40:50,640 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION [2021-11-09 10:40:50,640 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION [2021-11-09 10:40:50,640 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION [2021-11-09 10:40:50,641 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE [2021-11-09 10:40:50,641 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE [2021-11-09 10:40:50,641 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE [2021-11-09 10:40:50,641 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE [2021-11-09 10:40:50,641 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE [2021-11-09 10:40:50,642 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE [2021-11-09 10:40:50,642 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION [2021-11-09 10:40:50,642 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION [2021-11-09 10:40:50,642 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION [2021-11-09 10:40:50,642 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION [2021-11-09 10:40:50,643 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION [2021-11-09 10:40:50,643 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION [2021-11-09 10:40:50,643 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION [2021-11-09 10:40:50,643 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION [2021-11-09 10:40:50,643 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location disconnect_6Err0REQUIRES_VIOLATION [2021-11-09 10:40:50,643 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location disconnect_6Err1REQUIRES_VIOLATION [2021-11-09 10:40:50,644 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location disconnect_6Err2ASSERT_VIOLATIONMEMORY_FREE [2021-11-09 10:40:50,644 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location disconnect_6Err3ASSERT_VIOLATIONMEMORY_FREE [2021-11-09 10:40:50,644 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location disconnect_6Err4ASSERT_VIOLATIONMEMORY_FREE [2021-11-09 10:40:50,644 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe1_6Err0REQUIRES_VIOLATION [2021-11-09 10:40:50,644 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe1_6Err1REQUIRES_VIOLATION [2021-11-09 10:40:50,645 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe1_6Err2ASSERT_VIOLATIONMEMORY_FREE [2021-11-09 10:40:50,645 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe1_6Err3ASSERT_VIOLATIONMEMORY_FREE [2021-11-09 10:40:50,645 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe1_6Err4ASSERT_VIOLATIONMEMORY_FREE [2021-11-09 10:40:50,662 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5adfdf7-4a02-496e-b0e7-edc55056926f/bin/uautomizer-IVEQpCNsaX/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2021-11-09 10:40:50,871 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5adfdf7-4a02-496e-b0e7-edc55056926f/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-09 10:40:51,055 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5adfdf7-4a02-496e-b0e7-edc55056926f/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-11-09 10:40:51,252 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5adfdf7-4a02-496e-b0e7-edc55056926f/bin/uautomizer-IVEQpCNsaX/cvc4 --incremental --print-success --lang smt,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5adfdf7-4a02-496e-b0e7-edc55056926f/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5adfdf7-4a02-496e-b0e7-edc55056926f/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 [2021-11-09 10:40:51,255 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-11-09 10:40:51,258 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-09 10:40:51,261 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-11-09 10:40:51,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 10:40:51 BoogieIcfgContainer [2021-11-09 10:40:51,269 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-09 10:40:51,269 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-09 10:40:51,269 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-09 10:40:51,269 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-09 10:40:51,270 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:40:04" (3/4) ... [2021-11-09 10:40:51,273 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-09 10:40:51,273 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-09 10:40:51,274 INFO L168 Benchmark]: Toolchain (without parser) took 49016.93 ms. Allocated memory was 65.0 MB in the beginning and 121.6 MB in the end (delta: 56.6 MB). Free memory was 43.6 MB in the beginning and 29.2 MB in the end (delta: 14.4 MB). Peak memory consumption was 70.4 MB. Max. memory is 16.1 GB. [2021-11-09 10:40:51,274 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 65.0 MB. Free memory is still 45.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 10:40:51,275 INFO L168 Benchmark]: CACSL2BoogieTranslator took 663.13 ms. Allocated memory is still 65.0 MB. Free memory was 43.5 MB in the beginning and 30.2 MB in the end (delta: 13.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-11-09 10:40:51,275 INFO L168 Benchmark]: Boogie Preprocessor took 96.74 ms. Allocated memory is still 65.0 MB. Free memory was 30.2 MB in the beginning and 25.6 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-09 10:40:51,276 INFO L168 Benchmark]: RCFGBuilder took 1668.55 ms. Allocated memory was 65.0 MB in the beginning and 100.7 MB in the end (delta: 35.7 MB). Free memory was 25.3 MB in the beginning and 68.7 MB in the end (delta: -43.4 MB). Peak memory consumption was 20.6 MB. Max. memory is 16.1 GB. [2021-11-09 10:40:51,276 INFO L168 Benchmark]: TraceAbstraction took 46579.16 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 68.1 MB in the beginning and 30.2 MB in the end (delta: 37.9 MB). Peak memory consumption was 58.7 MB. Max. memory is 16.1 GB. [2021-11-09 10:40:51,277 INFO L168 Benchmark]: Witness Printer took 4.06 ms. Allocated memory is still 121.6 MB. Free memory was 30.2 MB in the beginning and 29.2 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 10:40:51,279 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 65.0 MB. Free memory is still 45.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 663.13 ms. Allocated memory is still 65.0 MB. Free memory was 43.5 MB in the beginning and 30.2 MB in the end (delta: 13.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 96.74 ms. Allocated memory is still 65.0 MB. Free memory was 30.2 MB in the beginning and 25.6 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1668.55 ms. Allocated memory was 65.0 MB in the beginning and 100.7 MB in the end (delta: 35.7 MB). Free memory was 25.3 MB in the beginning and 68.7 MB in the end (delta: -43.4 MB). Peak memory consumption was 20.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 46579.16 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 68.1 MB in the beginning and 30.2 MB in the end (delta: 37.9 MB). Peak memory consumption was 58.7 MB. Max. memory is 16.1 GB. * Witness Printer took 4.06 ms. Allocated memory is still 121.6 MB. Free memory was 30.2 MB in the beginning and 29.2 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 790]: 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 790. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L791] CALL entry_point() [L784] struct A a7; [L785] CALL, EXPR probe1_6(&a7) [L764] int ret = - -3; [L765] CALL, EXPR ldv_malloc(sizeof(int)) [L526] COND FALSE !(__VERIFIER_nondet_int()) [L529] return 0; [L765] RET, EXPR ldv_malloc(sizeof(int)) [L765] int *p = (int *)ldv_malloc(sizeof(int)); [L766] COND TRUE p==0 [L767] return ret; [L785] RET, EXPR probe1_6(&a7) [L785] int ret = probe1_6(&a7); [L786] COND FALSE !(ret==0) [L791] RET entry_point() - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 781]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 781]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 781]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 781]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 781]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 774]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 774]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 777]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 777]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 777]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 51 procedures, 373 locations, 81 error locations. Started 1 CEGAR loops. OverallTime: 46.4s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 296 SDtfs, 208 SDslu, 1050 SDs, 0 SdLazy, 390 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 233 GetRequests, 201 SyntacticMatches, 4 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=133occurred in iteration=0, InterpolantAutomatonStates: 36, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 83 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 10.3s InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 249 ConstructedInterpolants, 9 QuantifiedInterpolants, 724 SizeOfPredicates, 1 NumberOfNonLiveVariables, 629 ConjunctsInSsa, 35 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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 [2021-11-09 10:40:51,334 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5adfdf7-4a02-496e-b0e7-edc55056926f/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN