./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test8.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8109d001-8d08-40d3-8f47-366879cdb645/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8109d001-8d08-40d3-8f47-366879cdb645/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8109d001-8d08-40d3-8f47-366879cdb645/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8109d001-8d08-40d3-8f47-366879cdb645/bin/uautomizer-GMMbpWq8iD/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test8.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8109d001-8d08-40d3-8f47-366879cdb645/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8109d001-8d08-40d3-8f47-366879cdb645/bin/uautomizer-GMMbpWq8iD --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 14e73bee1ff131a549474bab511d8101c0585ce83d137ab03c9c7f9d80a198cf ................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8109d001-8d08-40d3-8f47-366879cdb645/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8109d001-8d08-40d3-8f47-366879cdb645/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8109d001-8d08-40d3-8f47-366879cdb645/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8109d001-8d08-40d3-8f47-366879cdb645/bin/uautomizer-GMMbpWq8iD/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test8.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8109d001-8d08-40d3-8f47-366879cdb645/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8109d001-8d08-40d3-8f47-366879cdb645/bin/uautomizer-GMMbpWq8iD --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 14e73bee1ff131a549474bab511d8101c0585ce83d137ab03c9c7f9d80a198cf ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:39:56,006 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:39:56,009 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:39:56,067 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:39:56,068 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:39:56,074 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:39:56,077 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:39:56,081 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:39:56,085 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:39:56,092 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:39:56,093 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:39:56,095 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:39:56,096 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:39:56,099 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:39:56,102 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:39:56,107 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:39:56,109 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:39:56,111 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:39:56,114 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:39:56,123 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:39:56,125 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:39:56,127 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:39:56,131 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:39:56,132 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:39:56,143 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:39:56,144 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:39:56,144 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:39:56,147 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:39:56,148 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:39:56,149 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:39:56,150 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:39:56,152 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:39:56,154 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:39:56,155 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:39:56,157 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:39:56,157 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:39:56,158 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:39:56,159 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:39:56,159 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:39:56,160 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:39:56,161 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:39:56,162 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8109d001-8d08-40d3-8f47-366879cdb645/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-10-28 23:39:56,216 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:39:56,216 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:39:56,217 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:39:56,217 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:39:56,227 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:39:56,227 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:39:56,227 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:39:56,228 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:39:56,228 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:39:56,228 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:39:56,229 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:39:56,230 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:39:56,230 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:39:56,230 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 23:39:56,230 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 23:39:56,231 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 23:39:56,231 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:39:56,231 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 23:39:56,231 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:39:56,232 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:39:56,232 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:39:56,232 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:39:56,232 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:39:56,233 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:39:56,233 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:39:56,233 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:39:56,233 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:39:56,234 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 23:39:56,234 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:39:56,236 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_8109d001-8d08-40d3-8f47-366879cdb645/bin/uautomizer-GMMbpWq8iD/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8109d001-8d08-40d3-8f47-366879cdb645/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14e73bee1ff131a549474bab511d8101c0585ce83d137ab03c9c7f9d80a198cf [2021-10-28 23:39:56,529 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:39:56,554 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:39:56,558 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:39:56,559 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:39:56,560 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:39:56,561 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8109d001-8d08-40d3-8f47-366879cdb645/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/ldv-memsafety/memleaks_test8.i [2021-10-28 23:39:56,638 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8109d001-8d08-40d3-8f47-366879cdb645/bin/uautomizer-GMMbpWq8iD/data/83113c64a/2ca001375f6a489d9c1bfc0cc2d1b8be/FLAG52a74c37a [2021-10-28 23:39:57,195 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:39:57,196 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8109d001-8d08-40d3-8f47-366879cdb645/sv-benchmarks/c/ldv-memsafety/memleaks_test8.i [2021-10-28 23:39:57,216 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8109d001-8d08-40d3-8f47-366879cdb645/bin/uautomizer-GMMbpWq8iD/data/83113c64a/2ca001375f6a489d9c1bfc0cc2d1b8be/FLAG52a74c37a [2021-10-28 23:39:57,643 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8109d001-8d08-40d3-8f47-366879cdb645/bin/uautomizer-GMMbpWq8iD/data/83113c64a/2ca001375f6a489d9c1bfc0cc2d1b8be [2021-10-28 23:39:57,647 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:39:57,648 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 23:39:57,653 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:39:57,667 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:39:57,672 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:39:57,673 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:39:57" (1/1) ... [2021-10-28 23:39:57,673 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@360f06f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:39:57, skipping insertion in model container [2021-10-28 23:39:57,674 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:39:57" (1/1) ... [2021-10-28 23:39:57,682 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:39:57,755 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:39:58,312 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:39:58,341 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-10-28 23:39:58,342 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@10118355 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:39:58, skipping insertion in model container [2021-10-28 23:39:58,342 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:39:58,344 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-10-28 23:39:58,348 INFO L168 Benchmark]: Toolchain (without parser) took 696.52 ms. Allocated memory was 109.1 MB in the beginning and 136.3 MB in the end (delta: 27.3 MB). Free memory was 75.7 MB in the beginning and 106.2 MB in the end (delta: -30.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-28 23:39:58,350 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 109.1 MB. Free memory is still 62.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:39:58,352 INFO L168 Benchmark]: CACSL2BoogieTranslator took 691.01 ms. Allocated memory was 109.1 MB in the beginning and 136.3 MB in the end (delta: 27.3 MB). Free memory was 75.3 MB in the beginning and 106.2 MB in the end (delta: -30.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-28 23:39:58,354 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 109.1 MB. Free memory is still 62.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 691.01 ms. Allocated memory was 109.1 MB in the beginning and 136.3 MB in the end (delta: 27.3 MB). Free memory was 75.3 MB in the beginning and 106.2 MB in the end (delta: -30.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:40:00,817 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:40:00,820 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:40:00,905 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:40:00,906 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:40:00,912 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:40:00,914 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:40:00,921 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:40:00,925 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:40:00,932 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:40:00,935 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:40:00,937 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:40:00,937 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:40:00,940 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:40:00,943 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:40:00,949 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:40:00,950 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:40:00,951 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:40:00,953 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:40:00,960 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:40:00,962 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:40:00,964 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:40:00,967 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:40:00,969 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:40:00,976 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:40:00,976 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:40:00,977 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:40:00,979 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:40:00,980 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:40:00,981 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:40:00,981 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:40:00,982 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:40:00,984 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:40:00,985 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:40:00,987 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:40:00,987 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:40:00,988 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:40:00,989 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:40:00,989 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:40:00,991 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:40:00,992 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:40:00,993 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8109d001-8d08-40d3-8f47-366879cdb645/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-28 23:40:01,042 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:40:01,042 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:40:01,043 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:40:01,043 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:40:01,045 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:40:01,045 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:40:01,046 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:40:01,046 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:40:01,046 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:40:01,046 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:40:01,048 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:40:01,048 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:40:01,048 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:40:01,048 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 23:40:01,048 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 23:40:01,049 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 23:40:01,049 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:40:01,049 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 23:40:01,049 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-28 23:40:01,049 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-28 23:40:01,050 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:40:01,050 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:40:01,050 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:40:01,050 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:40:01,050 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:40:01,051 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:40:01,051 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:40:01,051 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:40:01,051 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-28 23:40:01,052 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-28 23:40:01,052 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:40:01,052 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-28 23:40:01,052 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_8109d001-8d08-40d3-8f47-366879cdb645/bin/uautomizer-GMMbpWq8iD/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8109d001-8d08-40d3-8f47-366879cdb645/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14e73bee1ff131a549474bab511d8101c0585ce83d137ab03c9c7f9d80a198cf [2021-10-28 23:40:01,464 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:40:01,497 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:40:01,500 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:40:01,503 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:40:01,503 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:40:01,507 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8109d001-8d08-40d3-8f47-366879cdb645/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/ldv-memsafety/memleaks_test8.i [2021-10-28 23:40:01,583 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8109d001-8d08-40d3-8f47-366879cdb645/bin/uautomizer-GMMbpWq8iD/data/50a6f6c74/f209959406a741d383cfd62a10e65b4e/FLAG2745cabba [2021-10-28 23:40:02,366 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:40:02,367 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8109d001-8d08-40d3-8f47-366879cdb645/sv-benchmarks/c/ldv-memsafety/memleaks_test8.i [2021-10-28 23:40:02,384 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8109d001-8d08-40d3-8f47-366879cdb645/bin/uautomizer-GMMbpWq8iD/data/50a6f6c74/f209959406a741d383cfd62a10e65b4e/FLAG2745cabba [2021-10-28 23:40:02,576 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8109d001-8d08-40d3-8f47-366879cdb645/bin/uautomizer-GMMbpWq8iD/data/50a6f6c74/f209959406a741d383cfd62a10e65b4e [2021-10-28 23:40:02,579 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:40:02,581 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 23:40:02,584 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:40:02,584 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:40:02,589 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:40:02,590 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:40:02" (1/1) ... [2021-10-28 23:40:02,593 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50271ab8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:40:02, skipping insertion in model container [2021-10-28 23:40:02,593 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:40:02" (1/1) ... [2021-10-28 23:40:02,602 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:40:02,682 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:40:03,104 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:40:03,122 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-28 23:40:03,130 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:40:03,176 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:40:03,184 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:40:03,236 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:40:03,293 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:40:03,294 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:40:03 WrapperNode [2021-10-28 23:40:03,294 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:40:03,295 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:40:03,295 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:40:03,295 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:40:03,307 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:40:03" (1/1) ... [2021-10-28 23:40:03,307 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:40:03" (1/1) ... [2021-10-28 23:40:03,330 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:40:03" (1/1) ... [2021-10-28 23:40:03,330 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:40:03" (1/1) ... [2021-10-28 23:40:03,364 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:40:03" (1/1) ... [2021-10-28 23:40:03,370 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:40:03" (1/1) ... [2021-10-28 23:40:03,377 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:40:03" (1/1) ... [2021-10-28 23:40:03,397 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:40:03,398 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:40:03,398 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:40:03,398 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:40:03,399 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:40:03" (1/1) ... [2021-10-28 23:40:03,408 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:40:03,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8109d001-8d08-40d3-8f47-366879cdb645/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:40:03,437 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8109d001-8d08-40d3-8f47-366879cdb645/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:40:03,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8109d001-8d08-40d3-8f47-366879cdb645/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:40:03,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-28 23:40:03,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:40:03,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-10-28 23:40:03,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-10-28 23:40:03,491 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-10-28 23:40:03,496 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-10-28 23:40:03,497 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-10-28 23:40:03,497 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-10-28 23:40:03,497 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-10-28 23:40:03,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-10-28 23:40:03,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-10-28 23:40:03,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-10-28 23:40:03,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-10-28 23:40:03,498 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-10-28 23:40:03,498 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-10-28 23:40:03,499 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-10-28 23:40:03,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-10-28 23:40:03,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-10-28 23:40:03,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-10-28 23:40:03,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-10-28 23:40:03,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-10-28 23:40:03,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-10-28 23:40:03,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-10-28 23:40:03,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-10-28 23:40:03,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-10-28 23:40:03,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-10-28 23:40:03,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-10-28 23:40:03,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-10-28 23:40:03,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-10-28 23:40:03,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-10-28 23:40:03,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-10-28 23:40:03,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-10-28 23:40:03,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-10-28 23:40:03,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-10-28 23:40:03,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-10-28 23:40:03,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-10-28 23:40:03,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-10-28 23:40:03,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-10-28 23:40:03,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-10-28 23:40:03,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-10-28 23:40:03,520 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-10-28 23:40:03,520 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-10-28 23:40:03,520 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_8 [2021-10-28 23:40:03,520 INFO L138 BoogieDeclarations]: Found implementation of procedure free_8 [2021-10-28 23:40:03,521 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-10-28 23:40:03,521 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-28 23:40:03,521 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-10-28 23:40:03,522 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-10-28 23:40:03,522 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-10-28 23:40:03,522 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-10-28 23:40:03,523 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-10-28 23:40:03,523 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-10-28 23:40:03,523 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-10-28 23:40:03,523 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-10-28 23:40:03,523 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-10-28 23:40:03,524 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-10-28 23:40:03,524 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-10-28 23:40:03,524 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-10-28 23:40:03,525 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-10-28 23:40:03,525 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-10-28 23:40:03,526 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-10-28 23:40:03,526 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-10-28 23:40:03,527 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-10-28 23:40:03,527 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-10-28 23:40:03,528 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-10-28 23:40:03,528 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-10-28 23:40:03,528 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-10-28 23:40:03,529 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-10-28 23:40:03,529 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-10-28 23:40:03,529 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-10-28 23:40:03,529 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-10-28 23:40:03,529 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-10-28 23:40:03,530 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-10-28 23:40:03,530 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-10-28 23:40:03,530 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-10-28 23:40:03,530 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-10-28 23:40:03,530 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-10-28 23:40:03,531 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-10-28 23:40:03,531 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-10-28 23:40:03,532 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-10-28 23:40:03,532 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-10-28 23:40:03,532 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-10-28 23:40:03,532 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-10-28 23:40:03,532 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-10-28 23:40:03,533 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-10-28 23:40:03,533 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-10-28 23:40:03,533 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-10-28 23:40:03,533 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-10-28 23:40:03,533 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-10-28 23:40:03,533 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-10-28 23:40:03,534 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-10-28 23:40:03,534 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-10-28 23:40:03,534 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-10-28 23:40:03,534 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-10-28 23:40:03,534 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-10-28 23:40:03,535 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-10-28 23:40:03,535 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-10-28 23:40:03,535 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-10-28 23:40:03,535 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-10-28 23:40:03,535 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-10-28 23:40:03,536 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-10-28 23:40:03,536 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-10-28 23:40:03,536 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-10-28 23:40:03,536 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-10-28 23:40:03,537 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-10-28 23:40:03,537 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-10-28 23:40:03,538 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-10-28 23:40:03,538 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-10-28 23:40:03,538 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-10-28 23:40:03,538 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-10-28 23:40:03,538 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-10-28 23:40:03,538 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-10-28 23:40:03,539 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-28 23:40:03,539 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-10-28 23:40:03,539 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-10-28 23:40:03,539 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-10-28 23:40:03,539 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-10-28 23:40:03,540 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-10-28 23:40:03,540 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-10-28 23:40:03,540 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-10-28 23:40:03,541 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-10-28 23:40:03,541 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-10-28 23:40:03,542 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-10-28 23:40:03,542 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-10-28 23:40:03,545 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-10-28 23:40:03,545 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-10-28 23:40:03,546 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-10-28 23:40:03,546 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-10-28 23:40:03,547 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-10-28 23:40:03,548 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-10-28 23:40:03,549 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-10-28 23:40:03,549 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-10-28 23:40:03,550 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-10-28 23:40:03,556 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-10-28 23:40:03,556 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-10-28 23:40:03,556 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-10-28 23:40:03,556 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-10-28 23:40:03,557 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-10-28 23:40:03,557 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-10-28 23:40:03,557 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-10-28 23:40:03,557 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-10-28 23:40:03,557 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-10-28 23:40:03,557 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-10-28 23:40:03,558 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-10-28 23:40:03,558 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-10-28 23:40:03,558 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-10-28 23:40:03,558 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-10-28 23:40:03,558 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-10-28 23:40:03,558 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-10-28 23:40:03,559 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-10-28 23:40:03,559 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-10-28 23:40:03,559 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-10-28 23:40:03,559 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-10-28 23:40:03,559 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-10-28 23:40:03,559 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-10-28 23:40:03,560 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-10-28 23:40:03,560 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-10-28 23:40:03,560 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-28 23:40:03,560 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-10-28 23:40:03,560 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-10-28 23:40:03,561 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-10-28 23:40:03,561 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-10-28 23:40:03,561 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-10-28 23:40:03,561 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-28 23:40:03,561 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-10-28 23:40:03,561 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-10-28 23:40:03,562 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-10-28 23:40:03,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-28 23:40:03,562 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-10-28 23:40:03,562 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-10-28 23:40:03,562 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-10-28 23:40:03,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-28 23:40:03,563 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-10-28 23:40:03,563 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-10-28 23:40:03,563 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-10-28 23:40:03,563 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-10-28 23:40:03,563 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-10-28 23:40:03,564 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-10-28 23:40:03,564 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 23:40:03,564 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-10-28 23:40:03,564 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-10-28 23:40:03,564 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-10-28 23:40:03,564 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-10-28 23:40:03,565 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-10-28 23:40:03,565 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-28 23:40:03,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-28 23:40:03,565 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-10-28 23:40:03,565 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-10-28 23:40:03,566 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-10-28 23:40:03,566 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-10-28 23:40:03,566 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-10-28 23:40:03,566 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-10-28 23:40:03,566 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-10-28 23:40:03,566 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-10-28 23:40:03,567 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-10-28 23:40:03,567 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-10-28 23:40:03,567 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-10-28 23:40:03,567 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-10-28 23:40:03,567 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-10-28 23:40:03,567 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-10-28 23:40:03,568 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-10-28 23:40:03,568 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-10-28 23:40:03,568 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-10-28 23:40:03,568 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_8 [2021-10-28 23:40:03,568 INFO L130 BoogieDeclarations]: Found specification of procedure free_8 [2021-10-28 23:40:03,568 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-10-28 23:40:03,569 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-28 23:40:03,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-28 23:40:03,569 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:40:03,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-28 23:40:03,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:40:03,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-10-28 23:40:03,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-10-28 23:40:03,570 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-10-28 23:40:03,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-10-28 23:40:03,570 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-10-28 23:40:04,346 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 23:40:04,802 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 23:40:05,224 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:40:05,224 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-10-28 23:40:05,227 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:40:05 BoogieIcfgContainer [2021-10-28 23:40:05,228 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:40:05,230 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:40:05,230 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:40:05,233 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:40:05,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:40:02" (1/3) ... [2021-10-28 23:40:05,235 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1db1079 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:40:05, skipping insertion in model container [2021-10-28 23:40:05,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:40:03" (2/3) ... [2021-10-28 23:40:05,235 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1db1079 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:40:05, skipping insertion in model container [2021-10-28 23:40:05,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:40:05" (3/3) ... [2021-10-28 23:40:05,237 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test8.i [2021-10-28 23:40:05,244 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:40:05,244 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 74 error locations. [2021-10-28 23:40:05,296 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:40:05,303 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 23:40:05,304 INFO L340 AbstractCegarLoop]: Starting to check reachability of 74 error locations. [2021-10-28 23:40:05,329 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 56 states have (on average 1.5) internal successors, (84), 77 states have internal predecessors, (84), 13 states have call successors, (13), 12 states have call predecessors, (13), 12 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2021-10-28 23:40:05,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-28 23:40:05,351 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:40:05,351 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:40:05,352 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting free_8Err0ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-28 23:40:05,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:40:05,374 INFO L85 PathProgramCache]: Analyzing trace with hash 12717103, now seen corresponding path program 1 times [2021-10-28 23:40:05,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:40:05,388 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1140991083] [2021-10-28 23:40:05,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:40:05,389 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:40:05,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8109d001-8d08-40d3-8f47-366879cdb645/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:40:05,393 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8109d001-8d08-40d3-8f47-366879cdb645/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:40:05,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8109d001-8d08-40d3-8f47-366879cdb645/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-28 23:40:05,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:40:05,618 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:40:05,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:40:05,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:40:05,793 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:40:05,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:40:05,934 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:40:05,935 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1140991083] [2021-10-28 23:40:05,935 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1140991083] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:40:05,936 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:40:05,937 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-28 23:40:05,941 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855110441] [2021-10-28 23:40:05,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:40:05,946 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:40:05,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:40:05,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:40:05,966 INFO L87 Difference]: Start difference. First operand has 103 states, 56 states have (on average 1.5) internal successors, (84), 77 states have internal predecessors, (84), 13 states have call successors, (13), 12 states have call predecessors, (13), 12 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2021-10-28 23:40:06,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:40:06,038 INFO L93 Difference]: Finished difference Result 32 states and 33 transitions. [2021-10-28 23:40:06,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:40:06,040 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 18 [2021-10-28 23:40:06,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:40:06,048 INFO L225 Difference]: With dead ends: 32 [2021-10-28 23:40:06,048 INFO L226 Difference]: Without dead ends: 29 [2021-10-28 23:40:06,050 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-28 23:40:06,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-10-28 23:40:06,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2021-10-28 23:40:06,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 17 states have internal predecessors, (19), 6 states have call successors, (6), 6 states have call predecessors, (6), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-10-28 23:40:06,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2021-10-28 23:40:06,088 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 18 [2021-10-28 23:40:06,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:40:06,089 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2021-10-28 23:40:06,089 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2021-10-28 23:40:06,090 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2021-10-28 23:40:06,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-28 23:40:06,091 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:40:06,091 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:40:06,112 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8109d001-8d08-40d3-8f47-366879cdb645/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-28 23:40:06,312 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8109d001-8d08-40d3-8f47-366879cdb645/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:40:06,313 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting free_8Err1ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-28 23:40:06,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:40:06,314 INFO L85 PathProgramCache]: Analyzing trace with hash 394230500, now seen corresponding path program 1 times [2021-10-28 23:40:06,314 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:40:06,315 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2112430866] [2021-10-28 23:40:06,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:40:06,315 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:40:06,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8109d001-8d08-40d3-8f47-366879cdb645/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:40:06,317 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8109d001-8d08-40d3-8f47-366879cdb645/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:40:06,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8109d001-8d08-40d3-8f47-366879cdb645/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-28 23:40:06,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:40:06,532 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 23:40:06,534 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:40:06,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:40:06,830 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:40:07,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:40:07,094 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:40:07,094 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2112430866] [2021-10-28 23:40:07,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2112430866] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:40:07,094 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:40:07,095 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 8 [2021-10-28 23:40:07,095 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564961894] [2021-10-28 23:40:07,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 23:40:07,097 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:40:07,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 23:40:07,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-10-28 23:40:07,098 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand has 9 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 4 states have call successors, (11), 4 states have call predecessors, (11), 6 states have return successors, (6), 6 states have call predecessors, (6), 2 states have call successors, (6) [2021-10-28 23:40:07,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:40:07,415 INFO L93 Difference]: Finished difference Result 41 states and 43 transitions. [2021-10-28 23:40:07,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 23:40:07,420 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 4 states have call successors, (11), 4 states have call predecessors, (11), 6 states have return successors, (6), 6 states have call predecessors, (6), 2 states have call successors, (6) Word has length 19 [2021-10-28 23:40:07,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:40:07,422 INFO L225 Difference]: With dead ends: 41 [2021-10-28 23:40:07,422 INFO L226 Difference]: Without dead ends: 41 [2021-10-28 23:40:07,423 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-10-28 23:40:07,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2021-10-28 23:40:07,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2021-10-28 23:40:07,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 23 states have (on average 1.173913043478261) internal successors, (27), 25 states have internal predecessors, (27), 7 states have call successors, (7), 7 states have call predecessors, (7), 8 states have return successors, (8), 7 states have call predecessors, (8), 6 states have call successors, (8) [2021-10-28 23:40:07,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 42 transitions. [2021-10-28 23:40:07,439 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 42 transitions. Word has length 19 [2021-10-28 23:40:07,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:40:07,439 INFO L470 AbstractCegarLoop]: Abstraction has 40 states and 42 transitions. [2021-10-28 23:40:07,440 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 4 states have call successors, (11), 4 states have call predecessors, (11), 6 states have return successors, (6), 6 states have call predecessors, (6), 2 states have call successors, (6) [2021-10-28 23:40:07,440 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 42 transitions. [2021-10-28 23:40:07,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-28 23:40:07,443 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:40:07,443 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] [2021-10-28 23:40:07,461 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8109d001-8d08-40d3-8f47-366879cdb645/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-28 23:40:07,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8109d001-8d08-40d3-8f47-366879cdb645/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:40:07,662 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting free_8Err2ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-28 23:40:07,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:40:07,666 INFO L85 PathProgramCache]: Analyzing trace with hash -663756079, now seen corresponding path program 1 times [2021-10-28 23:40:07,667 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:40:07,667 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2032933967] [2021-10-28 23:40:07,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:40:07,667 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:40:07,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8109d001-8d08-40d3-8f47-366879cdb645/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:40:07,672 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8109d001-8d08-40d3-8f47-366879cdb645/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:40:07,716 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8109d001-8d08-40d3-8f47-366879cdb645/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-28 23:40:07,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:40:07,903 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 23:40:07,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:40:07,969 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-28 23:40:08,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:40:08,047 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:40:08,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:40:08,215 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:40:08,216 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2032933967] [2021-10-28 23:40:08,216 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2032933967] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:40:08,216 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:40:08,216 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-28 23:40:08,216 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969146106] [2021-10-28 23:40:08,218 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:40:08,218 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:40:08,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:40:08,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:40:08,222 INFO L87 Difference]: Start difference. First operand 40 states and 42 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2021-10-28 23:40:08,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:40:08,285 INFO L93 Difference]: Finished difference Result 40 states and 41 transitions. [2021-10-28 23:40:08,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:40:08,286 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 20 [2021-10-28 23:40:08,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:40:08,289 INFO L225 Difference]: With dead ends: 40 [2021-10-28 23:40:08,289 INFO L226 Difference]: Without dead ends: 40 [2021-10-28 23:40:08,289 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 34 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:40:08,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2021-10-28 23:40:08,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2021-10-28 23:40:08,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 23 states have (on average 1.1304347826086956) internal successors, (26), 25 states have internal predecessors, (26), 7 states have call successors, (7), 7 states have call predecessors, (7), 8 states have return successors, (8), 7 states have call predecessors, (8), 6 states have call successors, (8) [2021-10-28 23:40:08,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 41 transitions. [2021-10-28 23:40:08,299 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 41 transitions. Word has length 20 [2021-10-28 23:40:08,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:40:08,299 INFO L470 AbstractCegarLoop]: Abstraction has 40 states and 41 transitions. [2021-10-28 23:40:08,301 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2021-10-28 23:40:08,301 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 41 transitions. [2021-10-28 23:40:08,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-28 23:40:08,303 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:40:08,303 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] [2021-10-28 23:40:08,321 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8109d001-8d08-40d3-8f47-366879cdb645/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-28 23:40:08,516 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8109d001-8d08-40d3-8f47-366879cdb645/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:40:08,518 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting free_8Err2ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-28 23:40:08,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:40:08,518 INFO L85 PathProgramCache]: Analyzing trace with hash 1834259858, now seen corresponding path program 1 times [2021-10-28 23:40:08,519 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:40:08,519 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1377643448] [2021-10-28 23:40:08,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:40:08,519 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:40:08,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8109d001-8d08-40d3-8f47-366879cdb645/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:40:08,521 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8109d001-8d08-40d3-8f47-366879cdb645/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:40:08,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8109d001-8d08-40d3-8f47-366879cdb645/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-28 23:40:08,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:40:08,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 23:40:08,711 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:40:08,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:40:08,828 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:40:09,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:40:09,024 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:40:09,024 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1377643448] [2021-10-28 23:40:09,025 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1377643448] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:40:09,025 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:40:09,025 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-28 23:40:09,025 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53775982] [2021-10-28 23:40:09,026 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:40:09,026 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:40:09,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:40:09,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:40:09,027 INFO L87 Difference]: Start difference. First operand 40 states and 41 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 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) [2021-10-28 23:40:09,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:40:09,082 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2021-10-28 23:40:09,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:40:09,082 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 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 20 [2021-10-28 23:40:09,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:40:09,084 INFO L225 Difference]: With dead ends: 37 [2021-10-28 23:40:09,084 INFO L226 Difference]: Without dead ends: 37 [2021-10-28 23:40:09,084 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-28 23:40:09,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-10-28 23:40:09,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 36. [2021-10-28 23:40:09,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 20 states have (on average 1.05) internal successors, (21), 21 states have internal predecessors, (21), 7 states have call successors, (7), 7 states have call predecessors, (7), 8 states have return successors, (8), 7 states have call predecessors, (8), 6 states have call successors, (8) [2021-10-28 23:40:09,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 36 transitions. [2021-10-28 23:40:09,091 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 36 transitions. Word has length 20 [2021-10-28 23:40:09,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:40:09,091 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 36 transitions. [2021-10-28 23:40:09,092 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 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) [2021-10-28 23:40:09,092 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 36 transitions. [2021-10-28 23:40:09,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-28 23:40:09,093 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:40:09,093 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:40:09,110 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8109d001-8d08-40d3-8f47-366879cdb645/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-28 23:40:09,306 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8109d001-8d08-40d3-8f47-366879cdb645/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:40:09,306 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-28 23:40:09,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:40:09,307 INFO L85 PathProgramCache]: Analyzing trace with hash -1534178647, now seen corresponding path program 1 times [2021-10-28 23:40:09,308 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:40:09,308 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2029770891] [2021-10-28 23:40:09,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:40:09,308 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:40:09,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8109d001-8d08-40d3-8f47-366879cdb645/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:40:09,310 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8109d001-8d08-40d3-8f47-366879cdb645/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:40:09,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8109d001-8d08-40d3-8f47-366879cdb645/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-28 23:40:09,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:40:09,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-28 23:40:09,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:40:09,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:40:09,665 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:40:09,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:40:09,875 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:40:09,875 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2029770891] [2021-10-28 23:40:09,876 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2029770891] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:40:09,876 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:40:09,876 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-28 23:40:09,876 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280284078] [2021-10-28 23:40:09,877 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:40:09,877 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:40:09,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:40:09,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:40:09,878 INFO L87 Difference]: Start difference. First operand 36 states and 36 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-10-28 23:40:09,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:40:09,918 INFO L93 Difference]: Finished difference Result 40 states and 39 transitions. [2021-10-28 23:40:09,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:40:09,918 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 23 [2021-10-28 23:40:09,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:40:09,919 INFO L225 Difference]: With dead ends: 40 [2021-10-28 23:40:09,920 INFO L226 Difference]: Without dead ends: 27 [2021-10-28 23:40:09,920 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:40:09,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-10-28 23:40:09,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2021-10-28 23:40:09,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 15 states have (on average 1.0) internal successors, (15), 15 states have internal predecessors, (15), 6 states have call successors, (6), 6 states have call predecessors, (6), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-10-28 23:40:09,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 26 transitions. [2021-10-28 23:40:09,933 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 26 transitions. Word has length 23 [2021-10-28 23:40:09,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:40:09,934 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 26 transitions. [2021-10-28 23:40:09,934 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-10-28 23:40:09,934 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 26 transitions. [2021-10-28 23:40:09,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-28 23:40:09,935 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:40:09,935 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:40:09,963 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8109d001-8d08-40d3-8f47-366879cdb645/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-28 23:40:10,152 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8109d001-8d08-40d3-8f47-366879cdb645/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:40:10,152 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 70 more)] === [2021-10-28 23:40:10,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:40:10,152 INFO L85 PathProgramCache]: Analyzing trace with hash 714098001, now seen corresponding path program 1 times [2021-10-28 23:40:10,153 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:40:10,153 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1241598058] [2021-10-28 23:40:10,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:40:10,153 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:40:10,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8109d001-8d08-40d3-8f47-366879cdb645/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:40:10,154 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8109d001-8d08-40d3-8f47-366879cdb645/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:40:10,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8109d001-8d08-40d3-8f47-366879cdb645/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-28 23:40:10,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:40:10,407 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-28 23:40:10,409 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:40:10,432 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-10-28 23:40:10,432 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2021-10-28 23:40:10,753 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2021-10-28 23:40:14,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:40:14,999 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:40:27,583 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:40:27,583 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1241598058] [2021-10-28 23:40:27,583 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(= (store |v_old(#valid)_BEFORE_CALL_14| v_~a8~0.base_77 (_ bv0 1)) v_prenex_1)=(= (select v_prenex_1 v_antiDerIndex_entry0_1) (select (store |v_old(#valid)_BEFORE_CALL_14| v_~a8~0.base_77 (_ bv0 1)) v_antiDerIndex_entry0_1))} [2021-10-28 23:40:27,584 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [419285865] [2021-10-28 23:40:27,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:40:27,584 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-28 23:40:27,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8109d001-8d08-40d3-8f47-366879cdb645/bin/uautomizer-GMMbpWq8iD/cvc4 [2021-10-28 23:40:27,593 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8109d001-8d08-40d3-8f47-366879cdb645/bin/uautomizer-GMMbpWq8iD/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-28 23:40:27,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8109d001-8d08-40d3-8f47-366879cdb645/bin/uautomizer-GMMbpWq8iD/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2021-10-28 23:40:27,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:40:27,966 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-28 23:40:27,968 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:40:27,995 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-10-28 23:40:27,996 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 28 [2021-10-28 23:40:28,262 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2021-10-28 23:40:30,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:40:30,413 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:40:41,647 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_19| (Array (_ BitVec 32) (_ BitVec 1)))) (or (= (store |c_#valid| c_~a8~0.base (_ bv0 1)) |v_old(#valid)_BEFORE_CALL_19|) (exists ((v_~a8~0.base_77 (_ BitVec 32))) (and (not (= (store |c_old(#valid)| v_~a8~0.base_77 (_ bv0 1)) |v_old(#valid)_BEFORE_CALL_19|)) (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_old(#valid)| v_~a8~0.base_77))))))))) is different from false [2021-10-28 23:40:41,846 INFO L354 Elim1Store]: treesize reduction 16, result has 78.1 percent of original size [2021-10-28 23:40:41,846 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 59 treesize of output 106 [2021-10-28 23:40:43,192 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(not (= (store |old(#valid)| ~a8~0.base (_ bv0 1)) v_prenex_3))=(not (= (select v_prenex_3 v_antiDerIndex_entry0_3) (select (store |old(#valid)| ~a8~0.base (_ bv0 1)) v_antiDerIndex_entry0_3)))} [2021-10-28 23:40:43,193 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1149903271] [2021-10-28 23:40:43,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:40:43,193 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:40:43,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8109d001-8d08-40d3-8f47-366879cdb645/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:40:43,205 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8109d001-8d08-40d3-8f47-366879cdb645/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:40:43,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8109d001-8d08-40d3-8f47-366879cdb645/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-28 23:40:43,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:40:43,479 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-28 23:40:43,482 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:40:43,600 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2021-10-28 23:40:45,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:40:45,706 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:40:58,532 INFO L354 Elim1Store]: treesize reduction 16, result has 78.1 percent of original size [2021-10-28 23:40:58,532 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 61 treesize of output 108 [2021-10-28 23:40:59,002 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(not (= (store |old(#valid)| ~a8~0.base (_ bv0 1)) v_prenex_7))=(not (= (select (store |old(#valid)| ~a8~0.base (_ bv0 1)) v_antiDerIndex_entry0_5) (select v_prenex_7 v_antiDerIndex_entry0_5)))} [2021-10-28 23:40:59,002 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:40:59,002 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-10-28 23:40:59,002 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-10-28 23:40:59,003 INFO L627 BasicCegarLoop]: Counterexample might be feasible [2021-10-28 23:40:59,009 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-10-28 23:40:59,010 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION [2021-10-28 23:40:59,011 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION [2021-10-28 23:40:59,011 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION [2021-10-28 23:40:59,011 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION [2021-10-28 23:40:59,011 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION [2021-10-28 23:40:59,011 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION [2021-10-28 23:40:59,011 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION [2021-10-28 23:40:59,011 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION [2021-10-28 23:40:59,012 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION [2021-10-28 23:40:59,012 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION [2021-10-28 23:40:59,012 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION [2021-10-28 23:40:59,012 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION [2021-10-28 23:40:59,012 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION [2021-10-28 23:40:59,012 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION [2021-10-28 23:40:59,012 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION [2021-10-28 23:40:59,013 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION [2021-10-28 23:40:59,013 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION [2021-10-28 23:40:59,013 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION [2021-10-28 23:40:59,013 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION [2021-10-28 23:40:59,013 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION [2021-10-28 23:40:59,013 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION [2021-10-28 23:40:59,013 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION [2021-10-28 23:40:59,013 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION [2021-10-28 23:40:59,014 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION [2021-10-28 23:40:59,014 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION [2021-10-28 23:40:59,014 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION [2021-10-28 23:40:59,014 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION [2021-10-28 23:40:59,014 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION [2021-10-28 23:40:59,014 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION [2021-10-28 23:40:59,014 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION [2021-10-28 23:40:59,015 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION [2021-10-28 23:40:59,015 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION [2021-10-28 23:40:59,015 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION [2021-10-28 23:40:59,015 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION [2021-10-28 23:40:59,015 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION [2021-10-28 23:40:59,015 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION [2021-10-28 23:40:59,015 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION [2021-10-28 23:40:59,016 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION [2021-10-28 23:40:59,016 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION [2021-10-28 23:40:59,016 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION [2021-10-28 23:40:59,016 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION [2021-10-28 23:40:59,016 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION [2021-10-28 23:40:59,016 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:40:59,017 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:40:59,017 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:40:59,017 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:40:59,017 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:40:59,017 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:40:59,018 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_8Err0ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:40:59,018 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_8Err1ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:40:59,018 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_8Err2ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:40:59,018 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION [2021-10-28 23:40:59,018 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION [2021-10-28 23:40:59,018 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION [2021-10-28 23:40:59,019 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION [2021-10-28 23:40:59,019 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION [2021-10-28 23:40:59,019 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION [2021-10-28 23:40:59,019 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION [2021-10-28 23:40:59,019 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION [2021-10-28 23:40:59,020 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:40:59,020 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:40:59,020 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:40:59,020 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:40:59,020 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:40:59,020 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:40:59,021 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION [2021-10-28 23:40:59,021 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION [2021-10-28 23:40:59,021 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION [2021-10-28 23:40:59,021 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION [2021-10-28 23:40:59,021 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION [2021-10-28 23:40:59,021 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION [2021-10-28 23:40:59,022 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION [2021-10-28 23:40:59,022 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION [2021-10-28 23:40:59,048 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8109d001-8d08-40d3-8f47-366879cdb645/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-28 23:40:59,255 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8109d001-8d08-40d3-8f47-366879cdb645/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-10-28 23:40:59,436 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8109d001-8d08-40d3-8f47-366879cdb645/bin/uautomizer-GMMbpWq8iD/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2021-10-28 23:40:59,636 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8109d001-8d08-40d3-8f47-366879cdb645/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8109d001-8d08-40d3-8f47-366879cdb645/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8109d001-8d08-40d3-8f47-366879cdb645/bin/uautomizer-GMMbpWq8iD/cvc4 --incremental --print-success --lang smt [2021-10-28 23:40:59,639 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-10-28 23:40:59,642 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:40:59,645 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-10-28 23:40:59,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:40:59 BoogieIcfgContainer [2021-10-28 23:40:59,652 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:40:59,653 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:40:59,653 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:40:59,653 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:40:59,653 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:40:05" (3/4) ... [2021-10-28 23:40:59,656 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 23:40:59,656 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:40:59,657 INFO L168 Benchmark]: Toolchain (without parser) took 57076.07 ms. Allocated memory was 90.2 MB in the beginning and 130.0 MB in the end (delta: 39.8 MB). Free memory was 68.5 MB in the beginning and 81.2 MB in the end (delta: -12.7 MB). Peak memory consumption was 26.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:40:59,658 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 52.4 MB. Free memory was 32.7 MB in the beginning and 32.6 MB in the end (delta: 47.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:40:59,658 INFO L168 Benchmark]: CACSL2BoogieTranslator took 709.94 ms. Allocated memory is still 90.2 MB. Free memory was 68.3 MB in the beginning and 56.4 MB in the end (delta: 12.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-28 23:40:59,659 INFO L168 Benchmark]: Boogie Preprocessor took 102.30 ms. Allocated memory is still 90.2 MB. Free memory was 56.4 MB in the beginning and 51.7 MB in the end (delta: 4.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-28 23:40:59,659 INFO L168 Benchmark]: RCFGBuilder took 1829.95 ms. Allocated memory is still 90.2 MB. Free memory was 51.7 MB in the beginning and 59.5 MB in the end (delta: -7.8 MB). Peak memory consumption was 16.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:40:59,660 INFO L168 Benchmark]: TraceAbstraction took 54422.28 ms. Allocated memory was 90.2 MB in the beginning and 130.0 MB in the end (delta: 39.8 MB). Free memory was 59.0 MB in the beginning and 81.2 MB in the end (delta: -22.2 MB). Peak memory consumption was 69.9 MB. Max. memory is 16.1 GB. [2021-10-28 23:40:59,660 INFO L168 Benchmark]: Witness Printer took 4.01 ms. Allocated memory is still 130.0 MB. Free memory is still 81.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:40:59,664 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 52.4 MB. Free memory was 32.7 MB in the beginning and 32.6 MB in the end (delta: 47.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 709.94 ms. Allocated memory is still 90.2 MB. Free memory was 68.3 MB in the beginning and 56.4 MB in the end (delta: 12.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 102.30 ms. Allocated memory is still 90.2 MB. Free memory was 56.4 MB in the beginning and 51.7 MB in the end (delta: 4.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1829.95 ms. Allocated memory is still 90.2 MB. Free memory was 51.7 MB in the beginning and 59.5 MB in the end (delta: -7.8 MB). Peak memory consumption was 16.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 54422.28 ms. Allocated memory was 90.2 MB in the beginning and 130.0 MB in the end (delta: 39.8 MB). Free memory was 59.0 MB in the beginning and 81.2 MB in the end (delta: -22.2 MB). Peak memory consumption was 69.9 MB. Max. memory is 16.1 GB. * Witness Printer took 4.01 ms. Allocated memory is still 130.0 MB. Free memory is still 81.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 769]: 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 769. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L757] int *a8; [L770] CALL entry_point() [L765] CALL alloc_8() [L759] CALL, EXPR ldv_malloc(sizeof(int)) [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L759] RET, EXPR ldv_malloc(sizeof(int)) [L759] a8 = (int *)ldv_malloc(sizeof(int)) [L765] RET alloc_8() [L766] CALL free_8() [L762] COND TRUE \read(*a8) [L762] free(a8) [L762] free(a8) [L762] free(a8) [L766] RET free_8() [L767] a8 = 0 [L770] 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: 762]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 762]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 762]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 49 procedures, 343 locations, 74 error locations. Started 1 CEGAR loops. OverallTime: 54.3s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 141 SDtfs, 89 SDslu, 230 SDs, 0 SdLazy, 158 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 203 GetRequests, 176 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=103occurred in iteration=0, InterpolantAutomatonStates: 26, 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, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 19.0s InterpolantComputationTime, 126 NumberOfCodeBlocks, 126 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 215 ConstructedInterpolants, 8 QuantifiedInterpolants, 883 SizeOfPredicates, 3 NumberOfNonLiveVariables, 562 ConjunctsInSsa, 50 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 [2021-10-28 23:40:59,711 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8109d001-8d08-40d3-8f47-366879cdb645/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...