./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test16.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_83d5fd96-0437-4338-be91-483a59874669/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d5fd96-0437-4338-be91-483a59874669/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_83d5fd96-0437-4338-be91-483a59874669/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d5fd96-0437-4338-be91-483a59874669/bin/uautomizer-GMMbpWq8iD/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test16.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d5fd96-0437-4338-be91-483a59874669/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_83d5fd96-0437-4338-be91-483a59874669/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 c11af8296bfd5ac190948fd112a042e269f74b0ed21dcbb0764a4b3dab5067a3 ................................................................................................................................... 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_83d5fd96-0437-4338-be91-483a59874669/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d5fd96-0437-4338-be91-483a59874669/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_83d5fd96-0437-4338-be91-483a59874669/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d5fd96-0437-4338-be91-483a59874669/bin/uautomizer-GMMbpWq8iD/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test16.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d5fd96-0437-4338-be91-483a59874669/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_83d5fd96-0437-4338-be91-483a59874669/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 c11af8296bfd5ac190948fd112a042e269f74b0ed21dcbb0764a4b3dab5067a3 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:26:40,003 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:26:40,006 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:26:40,056 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:26:40,057 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:26:40,061 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:26:40,062 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:26:40,066 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:26:40,068 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:26:40,073 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:26:40,074 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:26:40,076 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:26:40,076 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:26:40,078 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:26:40,080 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:26:40,085 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:26:40,087 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:26:40,088 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:26:40,090 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:26:40,097 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:26:40,098 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:26:40,100 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:26:40,102 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:26:40,103 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:26:40,112 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:26:40,112 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:26:40,113 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:26:40,114 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:26:40,115 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:26:40,116 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:26:40,116 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:26:40,117 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:26:40,119 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:26:40,120 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:26:40,121 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:26:40,121 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:26:40,122 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:26:40,122 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:26:40,122 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:26:40,123 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:26:40,124 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:26:40,125 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d5fd96-0437-4338-be91-483a59874669/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-10-28 23:26:40,167 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:26:40,167 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:26:40,168 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:26:40,168 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:26:40,175 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:26:40,175 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:26:40,176 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:26:40,176 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:26:40,176 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:26:40,176 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:26:40,177 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:26:40,177 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:26:40,178 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:26:40,178 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 23:26:40,178 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 23:26:40,178 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 23:26:40,178 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:26:40,179 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 23:26:40,179 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:26:40,179 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:26:40,179 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:26:40,179 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:26:40,180 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:26:40,180 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:26:40,180 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:26:40,180 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:26:40,180 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:26:40,181 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 23:26:40,181 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:26:40,182 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_83d5fd96-0437-4338-be91-483a59874669/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d5fd96-0437-4338-be91-483a59874669/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c11af8296bfd5ac190948fd112a042e269f74b0ed21dcbb0764a4b3dab5067a3 [2021-10-28 23:26:40,409 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:26:40,433 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:26:40,436 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:26:40,437 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:26:40,438 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:26:40,439 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d5fd96-0437-4338-be91-483a59874669/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/ldv-memsafety/memleaks_test16.i [2021-10-28 23:26:40,535 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d5fd96-0437-4338-be91-483a59874669/bin/uautomizer-GMMbpWq8iD/data/94973d4f6/162e5cd2d4a643829a8644ba785a49d5/FLAG478f313ab [2021-10-28 23:26:41,075 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:26:41,076 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d5fd96-0437-4338-be91-483a59874669/sv-benchmarks/c/ldv-memsafety/memleaks_test16.i [2021-10-28 23:26:41,089 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d5fd96-0437-4338-be91-483a59874669/bin/uautomizer-GMMbpWq8iD/data/94973d4f6/162e5cd2d4a643829a8644ba785a49d5/FLAG478f313ab [2021-10-28 23:26:41,363 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d5fd96-0437-4338-be91-483a59874669/bin/uautomizer-GMMbpWq8iD/data/94973d4f6/162e5cd2d4a643829a8644ba785a49d5 [2021-10-28 23:26:41,365 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:26:41,366 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 23:26:41,374 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:26:41,374 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:26:41,378 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:26:41,379 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:26:41" (1/1) ... [2021-10-28 23:26:41,380 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20e79497 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:26:41, skipping insertion in model container [2021-10-28 23:26:41,380 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:26:41" (1/1) ... [2021-10-28 23:26:41,394 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:26:41,435 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:26:41,774 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:26:41,790 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 23:26:41,791 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2300aeb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:26:41, skipping insertion in model container [2021-10-28 23:26:41,791 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:26:41,791 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-10-28 23:26:41,793 INFO L168 Benchmark]: Toolchain (without parser) took 425.66 ms. Allocated memory is still 125.8 MB. Free memory was 92.8 MB in the beginning and 97.8 MB in the end (delta: -5.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:26:41,794 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 83.9 MB. Free memory was 38.8 MB in the beginning and 38.8 MB in the end (delta: 40.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:26:41,795 INFO L168 Benchmark]: CACSL2BoogieTranslator took 416.99 ms. Allocated memory is still 125.8 MB. Free memory was 92.5 MB in the beginning and 98.3 MB in the end (delta: -5.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:26:41,796 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 83.9 MB. Free memory was 38.8 MB in the beginning and 38.8 MB in the end (delta: 40.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 416.99 ms. Allocated memory is still 125.8 MB. Free memory was 92.5 MB in the beginning and 98.3 MB in the end (delta: -5.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:26:43,900 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:26:43,902 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:26:43,933 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:26:43,934 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:26:43,935 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:26:43,937 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:26:43,939 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:26:43,941 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:26:43,943 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:26:43,944 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:26:43,945 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:26:43,946 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:26:43,947 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:26:43,948 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:26:43,950 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:26:43,951 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:26:43,952 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:26:43,954 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:26:43,956 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:26:43,958 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:26:43,959 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:26:43,961 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:26:43,962 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:26:43,966 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:26:43,966 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:26:43,966 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:26:43,967 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:26:43,968 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:26:43,969 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:26:43,970 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:26:43,970 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:26:43,971 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:26:43,972 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:26:43,974 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:26:43,974 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:26:43,975 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:26:43,975 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:26:43,976 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:26:43,977 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:26:43,977 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:26:43,978 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d5fd96-0437-4338-be91-483a59874669/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-28 23:26:44,003 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:26:44,004 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:26:44,004 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:26:44,004 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:26:44,005 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:26:44,005 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:26:44,006 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:26:44,006 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:26:44,006 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:26:44,006 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:26:44,006 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:26:44,006 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:26:44,007 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:26:44,007 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 23:26:44,007 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 23:26:44,007 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 23:26:44,007 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:26:44,008 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 23:26:44,008 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-28 23:26:44,008 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-28 23:26:44,008 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:26:44,008 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:26:44,009 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:26:44,009 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:26:44,009 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:26:44,009 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:26:44,009 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:26:44,009 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:26:44,010 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-28 23:26:44,010 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-28 23:26:44,010 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:26:44,010 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-28 23:26:44,010 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_83d5fd96-0437-4338-be91-483a59874669/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d5fd96-0437-4338-be91-483a59874669/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c11af8296bfd5ac190948fd112a042e269f74b0ed21dcbb0764a4b3dab5067a3 [2021-10-28 23:26:44,372 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:26:44,397 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:26:44,401 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:26:44,403 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:26:44,404 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:26:44,406 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d5fd96-0437-4338-be91-483a59874669/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/ldv-memsafety/memleaks_test16.i [2021-10-28 23:26:44,478 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d5fd96-0437-4338-be91-483a59874669/bin/uautomizer-GMMbpWq8iD/data/14c3924aa/b33bb567ebd344afafc8545db5baa967/FLAG99a3f8f96 [2021-10-28 23:26:45,138 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:26:45,151 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d5fd96-0437-4338-be91-483a59874669/sv-benchmarks/c/ldv-memsafety/memleaks_test16.i [2021-10-28 23:26:45,170 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d5fd96-0437-4338-be91-483a59874669/bin/uautomizer-GMMbpWq8iD/data/14c3924aa/b33bb567ebd344afafc8545db5baa967/FLAG99a3f8f96 [2021-10-28 23:26:45,396 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d5fd96-0437-4338-be91-483a59874669/bin/uautomizer-GMMbpWq8iD/data/14c3924aa/b33bb567ebd344afafc8545db5baa967 [2021-10-28 23:26:45,404 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:26:45,406 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 23:26:45,408 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:26:45,408 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:26:45,411 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:26:45,412 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:26:45" (1/1) ... [2021-10-28 23:26:45,414 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@208267d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:26:45, skipping insertion in model container [2021-10-28 23:26:45,414 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:26:45" (1/1) ... [2021-10-28 23:26:45,421 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:26:45,484 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:26:45,909 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:26:45,930 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-28 23:26:45,940 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:26:46,009 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:26:46,022 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:26:46,098 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:26:46,151 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:26:46,151 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:26:46 WrapperNode [2021-10-28 23:26:46,151 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:26:46,152 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:26:46,153 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:26:46,153 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:26:46,163 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:26:46" (1/1) ... [2021-10-28 23:26:46,164 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:26:46" (1/1) ... [2021-10-28 23:26:46,187 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:26:46" (1/1) ... [2021-10-28 23:26:46,187 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:26:46" (1/1) ... [2021-10-28 23:26:46,232 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:26:46" (1/1) ... [2021-10-28 23:26:46,238 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:26:46" (1/1) ... [2021-10-28 23:26:46,244 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:26:46" (1/1) ... [2021-10-28 23:26:46,256 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:26:46,270 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:26:46,274 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:26:46,274 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:26:46,275 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:26:46" (1/1) ... [2021-10-28 23:26:46,282 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:26:46,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d5fd96-0437-4338-be91-483a59874669/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:46,304 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d5fd96-0437-4338-be91-483a59874669/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:46,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d5fd96-0437-4338-be91-483a59874669/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:26:46,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-28 23:26:46,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:26:46,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-10-28 23:26:46,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-10-28 23:26:46,351 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-10-28 23:26:46,351 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-10-28 23:26:46,351 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-10-28 23:26:46,351 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-10-28 23:26:46,351 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-10-28 23:26:46,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-10-28 23:26:46,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-10-28 23:26:46,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-10-28 23:26:46,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-10-28 23:26:46,352 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-10-28 23:26:46,352 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-10-28 23:26:46,352 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-10-28 23:26:46,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-10-28 23:26:46,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-10-28 23:26:46,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-10-28 23:26:46,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-10-28 23:26:46,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-10-28 23:26:46,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-10-28 23:26:46,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-10-28 23:26:46,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-10-28 23:26:46,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-10-28 23:26:46,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-10-28 23:26:46,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-10-28 23:26:46,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-10-28 23:26:46,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-10-28 23:26:46,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-10-28 23:26:46,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-10-28 23:26:46,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-10-28 23:26:46,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-10-28 23:26:46,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-10-28 23:26:46,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-10-28 23:26:46,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-10-28 23:26:46,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-10-28 23:26:46,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-10-28 23:26:46,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-10-28 23:26:46,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-10-28 23:26:46,374 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-10-28 23:26:46,375 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-10-28 23:26:46,375 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_16 [2021-10-28 23:26:46,375 INFO L138 BoogieDeclarations]: Found implementation of procedure free_16 [2021-10-28 23:26:46,375 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-10-28 23:26:46,375 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-28 23:26:46,375 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-10-28 23:26:46,376 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-10-28 23:26:46,376 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-10-28 23:26:46,376 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-10-28 23:26:46,376 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-10-28 23:26:46,376 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-10-28 23:26:46,376 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-10-28 23:26:46,376 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-10-28 23:26:46,377 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-10-28 23:26:46,377 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-10-28 23:26:46,377 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-10-28 23:26:46,377 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-10-28 23:26:46,377 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-10-28 23:26:46,377 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-10-28 23:26:46,377 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-10-28 23:26:46,378 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-10-28 23:26:46,378 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-10-28 23:26:46,378 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-10-28 23:26:46,378 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-10-28 23:26:46,378 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-10-28 23:26:46,378 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-10-28 23:26:46,378 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-10-28 23:26:46,379 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-10-28 23:26:46,379 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-10-28 23:26:46,379 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-10-28 23:26:46,379 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-10-28 23:26:46,379 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-10-28 23:26:46,379 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-10-28 23:26:46,379 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-10-28 23:26:46,380 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-10-28 23:26:46,380 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-10-28 23:26:46,380 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-10-28 23:26:46,380 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-10-28 23:26:46,380 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-10-28 23:26:46,380 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-10-28 23:26:46,380 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-10-28 23:26:46,381 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-10-28 23:26:46,381 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-10-28 23:26:46,381 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-10-28 23:26:46,381 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-10-28 23:26:46,381 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-10-28 23:26:46,381 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-10-28 23:26:46,382 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-10-28 23:26:46,382 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-10-28 23:26:46,382 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-10-28 23:26:46,382 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-10-28 23:26:46,382 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-10-28 23:26:46,382 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-10-28 23:26:46,382 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-10-28 23:26:46,383 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-10-28 23:26:46,383 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-10-28 23:26:46,383 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-10-28 23:26:46,383 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-10-28 23:26:46,383 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-10-28 23:26:46,383 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-10-28 23:26:46,383 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-10-28 23:26:46,384 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-10-28 23:26:46,384 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-10-28 23:26:46,384 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-10-28 23:26:46,384 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-10-28 23:26:46,384 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-10-28 23:26:46,384 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-10-28 23:26:46,384 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-10-28 23:26:46,384 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-10-28 23:26:46,385 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-10-28 23:26:46,385 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-10-28 23:26:46,385 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-28 23:26:46,385 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-10-28 23:26:46,385 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-10-28 23:26:46,385 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-10-28 23:26:46,385 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-10-28 23:26:46,386 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-10-28 23:26:46,386 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-10-28 23:26:46,386 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-10-28 23:26:46,386 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-10-28 23:26:46,386 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-10-28 23:26:46,386 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-10-28 23:26:46,386 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-10-28 23:26:46,386 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-10-28 23:26:46,387 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-10-28 23:26:46,387 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-10-28 23:26:46,387 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-10-28 23:26:46,387 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-10-28 23:26:46,387 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-10-28 23:26:46,387 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-10-28 23:26:46,387 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-10-28 23:26:46,387 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-10-28 23:26:46,388 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-10-28 23:26:46,388 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-10-28 23:26:46,388 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-10-28 23:26:46,388 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-10-28 23:26:46,388 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-10-28 23:26:46,388 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-10-28 23:26:46,388 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-10-28 23:26:46,389 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-10-28 23:26:46,389 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-10-28 23:26:46,389 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-10-28 23:26:46,389 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-10-28 23:26:46,389 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-10-28 23:26:46,389 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-10-28 23:26:46,389 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-10-28 23:26:46,389 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-10-28 23:26:46,390 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-10-28 23:26:46,390 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-10-28 23:26:46,390 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-10-28 23:26:46,390 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-10-28 23:26:46,390 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-10-28 23:26:46,390 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-10-28 23:26:46,390 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-10-28 23:26:46,390 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-10-28 23:26:46,391 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-10-28 23:26:46,391 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-28 23:26:46,391 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-10-28 23:26:46,391 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-10-28 23:26:46,391 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-10-28 23:26:46,391 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-10-28 23:26:46,391 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-10-28 23:26:46,391 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-28 23:26:46,392 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-10-28 23:26:46,392 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-10-28 23:26:46,392 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-10-28 23:26:46,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-28 23:26:46,392 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-10-28 23:26:46,392 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-10-28 23:26:46,392 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-10-28 23:26:46,393 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-28 23:26:46,393 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-10-28 23:26:46,393 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-10-28 23:26:46,393 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-10-28 23:26:46,393 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-10-28 23:26:46,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-10-28 23:26:46,393 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-10-28 23:26:46,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 23:26:46,394 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-10-28 23:26:46,394 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-10-28 23:26:46,394 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-10-28 23:26:46,394 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-10-28 23:26:46,394 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-10-28 23:26:46,394 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-28 23:26:46,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-28 23:26:46,394 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-10-28 23:26:46,395 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-10-28 23:26:46,395 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-10-28 23:26:46,395 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-10-28 23:26:46,395 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-10-28 23:26:46,395 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-10-28 23:26:46,395 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-10-28 23:26:46,395 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-10-28 23:26:46,395 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-10-28 23:26:46,396 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-10-28 23:26:46,396 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-10-28 23:26:46,396 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-10-28 23:26:46,396 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-10-28 23:26:46,396 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-10-28 23:26:46,396 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-10-28 23:26:46,396 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-10-28 23:26:46,396 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-10-28 23:26:46,397 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_16 [2021-10-28 23:26:46,397 INFO L130 BoogieDeclarations]: Found specification of procedure free_16 [2021-10-28 23:26:46,397 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-10-28 23:26:46,397 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-28 23:26:46,397 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-28 23:26:46,397 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:26:46,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-28 23:26:46,397 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:26:46,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-10-28 23:26:46,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-10-28 23:26:46,398 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-10-28 23:26:46,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-10-28 23:26:46,398 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-10-28 23:26:46,906 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 23:26:47,227 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 23:26:47,490 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:26:47,490 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-10-28 23:26:47,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:26:47 BoogieIcfgContainer [2021-10-28 23:26:47,493 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:26:47,495 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:26:47,495 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:26:47,498 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:26:47,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:26:45" (1/3) ... [2021-10-28 23:26:47,498 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d5d26cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:26:47, skipping insertion in model container [2021-10-28 23:26:47,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:26:46" (2/3) ... [2021-10-28 23:26:47,499 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d5d26cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:26:47, skipping insertion in model container [2021-10-28 23:26:47,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:26:47" (3/3) ... [2021-10-28 23:26:47,500 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test16.i [2021-10-28 23:26:47,509 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:26:47,510 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 74 error locations. [2021-10-28 23:26:47,567 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:26:47,574 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 23:26:47,574 INFO L340 AbstractCegarLoop]: Starting to check reachability of 74 error locations. [2021-10-28 23:26:47,595 INFO L276 IsEmpty]: Start isEmpty. Operand has 107 states, 60 states have (on average 1.4833333333333334) internal successors, (89), 81 states have internal predecessors, (89), 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 23:26:47,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-28 23:26:47,612 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:26:47,612 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:26:47,612 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting free_16Err0ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-28 23:26:47,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:26:47,617 INFO L85 PathProgramCache]: Analyzing trace with hash 997159282, now seen corresponding path program 1 times [2021-10-28 23:26:47,633 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:26:47,633 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1462150812] [2021-10-28 23:26:47,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:26:47,634 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:26:47,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d5fd96-0437-4338-be91-483a59874669/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:26:47,640 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d5fd96-0437-4338-be91-483a59874669/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:26:47,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d5fd96-0437-4338-be91-483a59874669/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-28 23:26:47,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:26:47,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 23:26:47,838 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:26:48,013 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 23:26:48,015 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:26:48,158 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 23:26:48,159 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:26:48,160 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1462150812] [2021-10-28 23:26:48,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1462150812] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:26:48,161 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:26:48,161 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 8 [2021-10-28 23:26:48,162 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246066061] [2021-10-28 23:26:48,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 23:26:48,167 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:26:48,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 23:26:48,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-10-28 23:26:48,182 INFO L87 Difference]: Start difference. First operand has 107 states, 60 states have (on average 1.4833333333333334) internal successors, (89), 81 states have internal predecessors, (89), 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 8 states, 8 states have (on average 1.5) internal successors, (12), 7 states have internal predecessors, (12), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 23:26:48,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:26:48,303 INFO L93 Difference]: Finished difference Result 49 states and 51 transitions. [2021-10-28 23:26:48,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 23:26:48,304 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.5) internal successors, (12), 7 states have internal predecessors, (12), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2021-10-28 23:26:48,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:26:48,314 INFO L225 Difference]: With dead ends: 49 [2021-10-28 23:26:48,314 INFO L226 Difference]: Without dead ends: 46 [2021-10-28 23:26:48,316 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-10-28 23:26:48,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-10-28 23:26:48,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 42. [2021-10-28 23:26:48,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 24 states have (on average 1.25) internal successors, (30), 28 states have internal predecessors, (30), 7 states have call successors, (7), 7 states have call predecessors, (7), 7 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2021-10-28 23:26:48,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 44 transitions. [2021-10-28 23:26:48,344 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 44 transitions. Word has length 17 [2021-10-28 23:26:48,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:26:48,345 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 44 transitions. [2021-10-28 23:26:48,345 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.5) internal successors, (12), 7 states have internal predecessors, (12), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 23:26:48,345 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 44 transitions. [2021-10-28 23:26:48,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-28 23:26:48,346 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:26:48,346 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] [2021-10-28 23:26:48,357 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d5fd96-0437-4338-be91-483a59874669/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-10-28 23:26:48,559 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d5fd96-0437-4338-be91-483a59874669/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:26:48,560 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-28 23:26:48,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:26:48,560 INFO L85 PathProgramCache]: Analyzing trace with hash 965683329, now seen corresponding path program 1 times [2021-10-28 23:26:48,561 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:26:48,561 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [407604884] [2021-10-28 23:26:48,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:26:48,561 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:26:48,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d5fd96-0437-4338-be91-483a59874669/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:26:48,564 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d5fd96-0437-4338-be91-483a59874669/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:26:48,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d5fd96-0437-4338-be91-483a59874669/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-28 23:26:48,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:26:48,724 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 23:26:48,726 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:26:48,798 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 23:26:48,798 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:26:48,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:26:48,940 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:26:48,941 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [407604884] [2021-10-28 23:26:48,941 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [407604884] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:26:48,941 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:26:48,941 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-28 23:26:48,941 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470099060] [2021-10-28 23:26:48,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:26:48,943 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:26:48,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:26:48,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:26:48,944 INFO L87 Difference]: Start difference. First operand 42 states and 44 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, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-28 23:26:48,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:26:48,983 INFO L93 Difference]: Finished difference Result 54 states and 57 transitions. [2021-10-28 23:26:48,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:26:48,984 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, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 21 [2021-10-28 23:26:48,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:26:48,986 INFO L225 Difference]: With dead ends: 54 [2021-10-28 23:26:48,986 INFO L226 Difference]: Without dead ends: 43 [2021-10-28 23:26:48,986 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 40 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 23:26:48,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-10-28 23:26:48,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2021-10-28 23:26:48,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 29 states have internal predecessors, (29), 7 states have call successors, (7), 6 states have call predecessors, (7), 8 states have return successors, (9), 7 states have call predecessors, (9), 6 states have call successors, (9) [2021-10-28 23:26:48,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 45 transitions. [2021-10-28 23:26:48,997 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 45 transitions. Word has length 21 [2021-10-28 23:26:48,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:26:48,998 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 45 transitions. [2021-10-28 23:26:48,998 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, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-28 23:26:48,998 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 45 transitions. [2021-10-28 23:26:48,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-28 23:26:48,999 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:26:48,999 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 23:26:49,016 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d5fd96-0437-4338-be91-483a59874669/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:49,211 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d5fd96-0437-4338-be91-483a59874669/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:26:49,212 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting free_16Err0ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-28 23:26:49,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:26:49,212 INFO L85 PathProgramCache]: Analyzing trace with hash -1103285257, now seen corresponding path program 1 times [2021-10-28 23:26:49,213 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:26:49,213 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1290211654] [2021-10-28 23:26:49,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:26:49,213 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:26:49,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d5fd96-0437-4338-be91-483a59874669/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:26:49,214 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d5fd96-0437-4338-be91-483a59874669/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:26:49,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d5fd96-0437-4338-be91-483a59874669/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-28 23:26:49,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:26:49,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-28 23:26:49,387 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:26:49,506 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 23:26:49,506 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:26:49,621 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 23:26:49,622 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:26:49,622 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1290211654] [2021-10-28 23:26:49,622 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1290211654] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:26:49,622 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:26:49,622 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2021-10-28 23:26:49,622 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620958267] [2021-10-28 23:26:49,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 23:26:49,623 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:26:49,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 23:26:49,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-10-28 23:26:49,624 INFO L87 Difference]: Start difference. First operand 43 states and 45 transitions. Second operand has 9 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 23:26:49,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:26:49,667 INFO L93 Difference]: Finished difference Result 42 states and 44 transitions. [2021-10-28 23:26:49,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 23:26:49,668 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 23 [2021-10-28 23:26:49,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:26:49,669 INFO L225 Difference]: With dead ends: 42 [2021-10-28 23:26:49,669 INFO L226 Difference]: Without dead ends: 42 [2021-10-28 23:26:49,670 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-10-28 23:26:49,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-10-28 23:26:49,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2021-10-28 23:26:49,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 28 states have internal predecessors, (28), 7 states have call successors, (7), 6 states have call predecessors, (7), 8 states have return successors, (9), 7 states have call predecessors, (9), 6 states have call successors, (9) [2021-10-28 23:26:49,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 44 transitions. [2021-10-28 23:26:49,677 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 44 transitions. Word has length 23 [2021-10-28 23:26:49,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:26:49,677 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 44 transitions. [2021-10-28 23:26:49,677 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 23:26:49,678 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 44 transitions. [2021-10-28 23:26:49,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-28 23:26:49,679 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:26:49,679 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:26:49,694 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d5fd96-0437-4338-be91-483a59874669/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:49,890 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d5fd96-0437-4338-be91-483a59874669/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:26:49,890 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting free_16Err1ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-28 23:26:49,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:26:49,891 INFO L85 PathProgramCache]: Analyzing trace with hash 157895800, now seen corresponding path program 1 times [2021-10-28 23:26:49,891 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:26:49,891 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [767147534] [2021-10-28 23:26:49,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:26:49,891 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:26:49,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d5fd96-0437-4338-be91-483a59874669/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:26:49,896 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d5fd96-0437-4338-be91-483a59874669/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:26:49,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d5fd96-0437-4338-be91-483a59874669/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-28 23:26:50,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:26:50,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-28 23:26:50,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:26:50,385 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 23:26:50,385 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:26:50,736 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 23:26:50,736 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:26:50,736 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [767147534] [2021-10-28 23:26:50,736 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [767147534] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:26:50,737 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:26:50,737 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 8] imperfect sequences [] total 16 [2021-10-28 23:26:50,737 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916274195] [2021-10-28 23:26:50,738 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-28 23:26:50,738 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:26:50,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-28 23:26:50,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2021-10-28 23:26:50,739 INFO L87 Difference]: Start difference. First operand 42 states and 44 transitions. Second operand has 17 states, 14 states have (on average 2.142857142857143) internal successors, (30), 11 states have internal predecessors, (30), 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 23:26:51,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:26:51,090 INFO L93 Difference]: Finished difference Result 53 states and 54 transitions. [2021-10-28 23:26:51,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-28 23:26:51,091 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 14 states have (on average 2.142857142857143) internal successors, (30), 11 states have internal predecessors, (30), 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 24 [2021-10-28 23:26:51,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:26:51,092 INFO L225 Difference]: With dead ends: 53 [2021-10-28 23:26:51,092 INFO L226 Difference]: Without dead ends: 51 [2021-10-28 23:26:51,093 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2021-10-28 23:26:51,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-10-28 23:26:51,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 46. [2021-10-28 23:26:51,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 29 states have (on average 1.1379310344827587) internal successors, (33), 31 states have internal predecessors, (33), 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 23:26:51,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 48 transitions. [2021-10-28 23:26:51,099 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 48 transitions. Word has length 24 [2021-10-28 23:26:51,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:26:51,100 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 48 transitions. [2021-10-28 23:26:51,100 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 14 states have (on average 2.142857142857143) internal successors, (30), 11 states have internal predecessors, (30), 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 23:26:51,100 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 48 transitions. [2021-10-28 23:26:51,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-28 23:26:51,101 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:26:51,101 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:26:51,109 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d5fd96-0437-4338-be91-483a59874669/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:51,306 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d5fd96-0437-4338-be91-483a59874669/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:26:51,306 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting free_16Err2ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-28 23:26:51,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:26:51,307 INFO L85 PathProgramCache]: Analyzing trace with hash 599802905, now seen corresponding path program 1 times [2021-10-28 23:26:51,307 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:26:51,307 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1575605219] [2021-10-28 23:26:51,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:26:51,308 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:26:51,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d5fd96-0437-4338-be91-483a59874669/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:26:51,309 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d5fd96-0437-4338-be91-483a59874669/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:26:51,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d5fd96-0437-4338-be91-483a59874669/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-28 23:26:51,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:26:51,519 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-28 23:26:51,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:26:51,579 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 23:26:51,684 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 23:26:51,684 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:26:51,868 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 23:26:51,868 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:26:51,869 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1575605219] [2021-10-28 23:26:51,869 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1575605219] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:26:51,869 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:26:51,869 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2021-10-28 23:26:51,869 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379827552] [2021-10-28 23:26:51,870 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 23:26:51,870 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:26:51,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 23:26:51,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-10-28 23:26:51,871 INFO L87 Difference]: Start difference. First operand 46 states and 48 transitions. Second operand has 9 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 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 23:26:52,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:26:52,003 INFO L93 Difference]: Finished difference Result 50 states and 51 transitions. [2021-10-28 23:26:52,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 23:26:52,005 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 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 25 [2021-10-28 23:26:52,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:26:52,006 INFO L225 Difference]: With dead ends: 50 [2021-10-28 23:26:52,006 INFO L226 Difference]: Without dead ends: 50 [2021-10-28 23:26:52,006 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 35 SyntacticMatches, 7 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-10-28 23:26:52,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-10-28 23:26:52,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 46. [2021-10-28 23:26:52,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 29 states have (on average 1.103448275862069) internal successors, (32), 31 states have internal predecessors, (32), 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 23:26:52,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 47 transitions. [2021-10-28 23:26:52,011 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 47 transitions. Word has length 25 [2021-10-28 23:26:52,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:26:52,011 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 47 transitions. [2021-10-28 23:26:52,012 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 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 23:26:52,012 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 47 transitions. [2021-10-28 23:26:52,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-28 23:26:52,013 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:26:52,013 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:26:52,026 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d5fd96-0437-4338-be91-483a59874669/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:52,213 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d5fd96-0437-4338-be91-483a59874669/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:26:52,213 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting free_16Err2ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-28 23:26:52,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:26:52,214 INFO L85 PathProgramCache]: Analyzing trace with hash 306399898, now seen corresponding path program 1 times [2021-10-28 23:26:52,214 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:26:52,214 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [327730457] [2021-10-28 23:26:52,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:26:52,214 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:26:52,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d5fd96-0437-4338-be91-483a59874669/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:26:52,215 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d5fd96-0437-4338-be91-483a59874669/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:26:52,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d5fd96-0437-4338-be91-483a59874669/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-28 23:26:52,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:26:52,427 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-28 23:26:52,428 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:26:52,537 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 23:26:52,538 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:26:52,662 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 23:26:52,662 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:26:52,662 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [327730457] [2021-10-28 23:26:52,663 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [327730457] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:26:52,663 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:26:52,663 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2021-10-28 23:26:52,663 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761652936] [2021-10-28 23:26:52,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 23:26:52,663 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:26:52,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 23:26:52,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-10-28 23:26:52,664 INFO L87 Difference]: Start difference. First operand 46 states and 47 transitions. Second operand has 9 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 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 23:26:52,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:26:52,729 INFO L93 Difference]: Finished difference Result 47 states and 48 transitions. [2021-10-28 23:26:52,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 23:26:52,730 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 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 25 [2021-10-28 23:26:52,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:26:52,731 INFO L225 Difference]: With dead ends: 47 [2021-10-28 23:26:52,731 INFO L226 Difference]: Without dead ends: 47 [2021-10-28 23:26:52,732 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-10-28 23:26:52,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-10-28 23:26:52,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 45. [2021-10-28 23:26:52,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 29 states have (on average 1.0689655172413792) internal successors, (31), 30 states have internal predecessors, (31), 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 23:26:52,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 46 transitions. [2021-10-28 23:26:52,736 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 46 transitions. Word has length 25 [2021-10-28 23:26:52,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:26:52,737 INFO L470 AbstractCegarLoop]: Abstraction has 45 states and 46 transitions. [2021-10-28 23:26:52,737 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 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 23:26:52,737 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 46 transitions. [2021-10-28 23:26:52,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-28 23:26:52,738 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:26:52,738 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:26:52,755 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d5fd96-0437-4338-be91-483a59874669/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:52,938 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d5fd96-0437-4338-be91-483a59874669/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:26:52,939 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-28 23:26:52,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:26:52,939 INFO L85 PathProgramCache]: Analyzing trace with hash 1123950726, now seen corresponding path program 1 times [2021-10-28 23:26:52,940 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:26:52,940 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [977323286] [2021-10-28 23:26:52,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:26:52,940 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:26:52,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d5fd96-0437-4338-be91-483a59874669/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:26:52,941 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d5fd96-0437-4338-be91-483a59874669/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:26:52,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d5fd96-0437-4338-be91-483a59874669/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-28 23:26:53,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:26:53,137 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 23:26:53,138 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:26:53,241 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 23:26:53,241 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:26:53,475 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 23:26:53,475 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:26:53,475 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [977323286] [2021-10-28 23:26:53,476 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [977323286] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:26:53,476 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:26:53,476 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 9 [2021-10-28 23:26:53,476 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152225761] [2021-10-28 23:26:53,477 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 23:26:53,477 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:26:53,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 23:26:53,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-10-28 23:26:53,478 INFO L87 Difference]: Start difference. First operand 45 states and 46 transitions. Second operand has 9 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 9 states have internal predecessors, (20), 3 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2021-10-28 23:26:53,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:26:53,536 INFO L93 Difference]: Finished difference Result 47 states and 47 transitions. [2021-10-28 23:26:53,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 23:26:53,536 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 9 states have internal predecessors, (20), 3 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) Word has length 27 [2021-10-28 23:26:53,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:26:53,537 INFO L225 Difference]: With dead ends: 47 [2021-10-28 23:26:53,537 INFO L226 Difference]: Without dead ends: 45 [2021-10-28 23:26:53,538 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-10-28 23:26:53,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-10-28 23:26:53,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 31. [2021-10-28 23:26:53,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 19 states have (on average 1.0526315789473684) internal successors, (20), 19 states have internal predecessors, (20), 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 23:26:53,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 31 transitions. [2021-10-28 23:26:53,541 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 31 transitions. Word has length 27 [2021-10-28 23:26:53,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:26:53,542 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 31 transitions. [2021-10-28 23:26:53,542 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 9 states have internal predecessors, (20), 3 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2021-10-28 23:26:53,542 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2021-10-28 23:26:53,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-28 23:26:53,543 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:26:53,543 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:26:53,570 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d5fd96-0437-4338-be91-483a59874669/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-10-28 23:26:53,754 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d5fd96-0437-4338-be91-483a59874669/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:26:53,755 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-28 23:26:53,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:26:53,755 INFO L85 PathProgramCache]: Analyzing trace with hash 2141245867, now seen corresponding path program 1 times [2021-10-28 23:26:53,755 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:26:53,755 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [966962651] [2021-10-28 23:26:53,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:26:53,756 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:26:53,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d5fd96-0437-4338-be91-483a59874669/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:26:53,756 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d5fd96-0437-4338-be91-483a59874669/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:26:53,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d5fd96-0437-4338-be91-483a59874669/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-28 23:26:53,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:26:54,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-28 23:26:54,002 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:26:54,019 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-10-28 23:26:54,019 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 23:26:58,583 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 23:26:58,583 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:27:02,853 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_11| (Array (_ BitVec 32) (_ BitVec 1)))) (or (= |v_old(#valid)_BEFORE_CALL_11| |c_#valid|) (exists ((v_entry_point_~p~1.base_20 (_ BitVec 32))) (and (not (= |v_old(#valid)_BEFORE_CALL_11| (store |c_old(#valid)| v_entry_point_~p~1.base_20 (_ bv0 1)))) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_old(#valid)| v_entry_point_~p~1.base_20)))))))))))))))) is different from false [2021-10-28 23:27:02,966 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_11| (Array (_ BitVec 32) (_ BitVec 1)))) (or (= |v_old(#valid)_BEFORE_CALL_11| (store |c_#valid| c_entry_point_~p~1.base (_ bv0 1))) (exists ((v_entry_point_~p~1.base_20 (_ BitVec 32))) (and (not (= |v_old(#valid)_BEFORE_CALL_11| (store |c_old(#valid)| v_entry_point_~p~1.base_20 (_ bv0 1)))) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_old(#valid)| v_entry_point_~p~1.base_20)))))))))))))))) is different from false [2021-10-28 23:27:03,049 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:27:03,049 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [966962651] [2021-10-28 23:27:03,049 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(= (store |v_old(#valid)_BEFORE_CALL_12| v_entry_point_~p~1.base_20 (_ bv0 1)) v_prenex_1)=(= (select v_prenex_1 v_antiDerIndex_entry0_1) (select (store |v_old(#valid)_BEFORE_CALL_12| v_entry_point_~p~1.base_20 (_ bv0 1)) v_antiDerIndex_entry0_1))} [2021-10-28 23:27:03,050 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [718942985] [2021-10-28 23:27:03,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:27:03,050 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-28 23:27:03,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d5fd96-0437-4338-be91-483a59874669/bin/uautomizer-GMMbpWq8iD/cvc4 [2021-10-28 23:27:03,055 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d5fd96-0437-4338-be91-483a59874669/bin/uautomizer-GMMbpWq8iD/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-28 23:27:03,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d5fd96-0437-4338-be91-483a59874669/bin/uautomizer-GMMbpWq8iD/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2021-10-28 23:27:03,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:27:03,482 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 23 conjunts are in the unsatisfiable core [2021-10-28 23:27:03,484 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:27:03,508 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-10-28 23:27:03,509 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 24 treesize of output 27 [2021-10-28 23:27:03,871 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 23:27:03,871 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:27:08,112 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_17| (Array (_ BitVec 32) (_ BitVec 1)))) (or (= |v_old(#valid)_BEFORE_CALL_17| |c_#valid|) (exists ((v_entry_point_~p~1.base_20 (_ BitVec 32))) (and (not (= |v_old(#valid)_BEFORE_CALL_17| (store |c_old(#valid)| v_entry_point_~p~1.base_20 (_ bv0 1)))) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_old(#valid)| v_entry_point_~p~1.base_20)))))))))))))))) is different from false [2021-10-28 23:27:08,211 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_17| (Array (_ BitVec 32) (_ BitVec 1)))) (or (= |v_old(#valid)_BEFORE_CALL_17| (store |c_#valid| c_entry_point_~p~1.base (_ bv0 1))) (exists ((v_entry_point_~p~1.base_20 (_ BitVec 32))) (and (not (= |v_old(#valid)_BEFORE_CALL_17| (store |c_old(#valid)| v_entry_point_~p~1.base_20 (_ bv0 1)))) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_old(#valid)| v_entry_point_~p~1.base_20)))))))))))))))) is different from false [2021-10-28 23:27:08,352 INFO L354 Elim1Store]: treesize reduction 16, result has 78.1 percent of original size [2021-10-28 23:27:08,352 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 77 treesize of output 124 [2021-10-28 23:27:08,876 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-28 23:27:08,876 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 38 [2021-10-28 23:27:11,011 INFO L354 Elim1Store]: treesize reduction 16, result has 78.1 percent of original size [2021-10-28 23:27:11,012 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 84 treesize of output 131 [2021-10-28 23:27:11,828 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-28 23:27:11,829 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 44 [2021-10-28 23:27:12,056 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 10 treesize of output 8 [2021-10-28 23:27:12,664 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-28 23:27:12,665 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 67 treesize of output 107 [2021-10-28 23:27:15,495 WARN L860 $PredicateComparison]: unable to prove that (or (forall ((v_antiDerIndex_entry0_7 (_ BitVec 32)) (v_arrayElimCell_14 (_ BitVec 1))) (let ((.cse0 (bvneg v_arrayElimCell_14))) (or (= (_ bv0 1) (bvadd (select (store |c_#valid| |c_alloc_16_#res.base| (_ bv0 1)) v_antiDerIndex_entry0_7) .cse0)) (not (= (_ bv0 1) .cse0))))) (exists ((|v_entry_point_#t~ret40.base_53| (_ BitVec 32))) (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_old(#valid)| |v_entry_point_#t~ret40.base_53|))))))) is different from true [2021-10-28 23:27:17,544 WARN L860 $PredicateComparison]: unable to prove that (or (forall ((v_antiDerIndex_entry0_7 (_ BitVec 32)) (v_arrayElimCell_14 (_ BitVec 1))) (let ((.cse0 (bvneg v_arrayElimCell_14))) (or (= (_ bv0 1) (bvadd (select (store |c_#valid| |c_alloc_16_#t~ret38.base| (_ bv0 1)) v_antiDerIndex_entry0_7) .cse0)) (not (= (_ bv0 1) .cse0))))) (exists ((|v_entry_point_#t~ret40.base_53| (_ BitVec 32))) (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_old(#valid)| |v_entry_point_#t~ret40.base_53|))))))) is different from true [2021-10-28 23:27:19,644 WARN L860 $PredicateComparison]: unable to prove that (or (forall ((v_antiDerIndex_entry0_7 (_ BitVec 32)) (v_arrayElimCell_14 (_ BitVec 1)) (|v_alloc_16_#t~ret38.base_72| (_ BitVec 32))) (let ((.cse0 (bvneg v_arrayElimCell_14))) (or (not (= (_ bv0 1) (bvneg (bvneg (select |c_#valid| |v_alloc_16_#t~ret38.base_72|))))) (= (_ bv0 1) (bvadd (select (store |c_#valid| |v_alloc_16_#t~ret38.base_72| (_ bv0 1)) v_antiDerIndex_entry0_7) .cse0)) (not (= (_ bv0 1) .cse0))))) (exists ((|v_entry_point_#t~ret40.base_53| (_ BitVec 32))) (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_old(#valid)| |v_entry_point_#t~ret40.base_53|))))))) is different from true [2021-10-28 23:27:21,707 WARN L860 $PredicateComparison]: unable to prove that (or (exists ((v_antiDerIndex_entry0_7 (_ BitVec 32)) (v_arrayElimCell_14 (_ BitVec 1)) (|v_alloc_16_#t~ret38.base_72| (_ BitVec 32))) (let ((.cse0 (bvneg v_arrayElimCell_14))) (and (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_old(#valid)| |v_alloc_16_#t~ret38.base_72|))))) (not (= (_ bv0 1) (bvadd (bvneg (select (store |c_old(#valid)| |v_alloc_16_#t~ret38.base_72| (_ bv0 1)) v_antiDerIndex_entry0_7)) (bvneg .cse0)))) (= (_ bv0 1) .cse0)))) (forall ((|v_old(#valid)_BEFORE_CALL_20| (Array (_ BitVec 32) (_ BitVec 1)))) (exists ((|v_entry_point_#t~ret40.base_53| (_ BitVec 32))) (= (_ bv0 1) (bvneg (bvneg (bvneg (select |v_old(#valid)_BEFORE_CALL_20| |v_entry_point_#t~ret40.base_53|))))))) (forall ((v_antiDerIndex_entry0_7 (_ BitVec 32)) (v_arrayElimCell_14 (_ BitVec 1))) (let ((.cse1 (bvneg v_arrayElimCell_14))) (or (= (_ bv0 1) (bvadd (bvneg .cse1) (bvneg (select (store |c_#valid| |c_ldv_malloc_#res.base| (_ bv0 1)) v_antiDerIndex_entry0_7)))) (not (= (_ bv0 1) .cse1)))))) is different from true [2021-10-28 23:27:23,842 WARN L860 $PredicateComparison]: unable to prove that (or (forall ((|v_ldv_malloc_#res.base_58| (_ BitVec 32)) (v_antiDerIndex_entry0_7 (_ BitVec 32)) (v_arrayElimCell_14 (_ BitVec 1))) (let ((.cse0 (bvneg v_arrayElimCell_14))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (select (store |c_#valid| |v_ldv_malloc_#res.base_58| (_ bv0 1)) v_antiDerIndex_entry0_7))))) (bvneg (bvneg (bvneg (bvneg .cse0)))))) (not (= (_ bv0 1) .cse0)) (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_ldv_malloc_#res.base_58|))))))) (exists ((v_antiDerIndex_entry0_7 (_ BitVec 32)) (v_arrayElimCell_14 (_ BitVec 1)) (|v_alloc_16_#t~ret38.base_72| (_ BitVec 32))) (let ((.cse1 (bvneg v_arrayElimCell_14))) (and (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_old(#valid)| |v_alloc_16_#t~ret38.base_72|))))) (not (= (_ bv0 1) (bvadd (bvneg (select (store |c_old(#valid)| |v_alloc_16_#t~ret38.base_72| (_ bv0 1)) v_antiDerIndex_entry0_7)) (bvneg .cse1)))) (= (_ bv0 1) .cse1)))) (forall ((|v_old(#valid)_BEFORE_CALL_20| (Array (_ BitVec 32) (_ BitVec 1)))) (exists ((|v_entry_point_#t~ret40.base_53| (_ BitVec 32))) (= (_ bv0 1) (bvneg (bvneg (bvneg (select |v_old(#valid)_BEFORE_CALL_20| |v_entry_point_#t~ret40.base_53|)))))))) is different from true [2021-10-28 23:27:24,091 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 23:27:24,091 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [718942985] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:27:24,091 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:27:24,092 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13, 12] imperfect sequences [] total 23 [2021-10-28 23:27:24,092 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442999761] [2021-10-28 23:27:24,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-10-28 23:27:24,093 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:27:24,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-10-28 23:27:24,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=207, Unknown=27, NotChecked=342, Total=650 [2021-10-28 23:27:24,094 INFO L87 Difference]: Start difference. First operand 31 states and 31 transitions. Second operand has 24 states, 19 states have (on average 2.0) internal successors, (38), 17 states have internal predecessors, (38), 9 states have call successors, (11), 7 states have call predecessors, (11), 9 states have return successors, (10), 10 states have call predecessors, (10), 8 states have call successors, (10) [2021-10-28 23:27:40,497 WARN L838 $PredicateComparison]: unable to prove that (and (= |c_old(#valid)| |c_#valid|) (or (forall ((|v_ldv_malloc_#res.base_58| (_ BitVec 32)) (v_antiDerIndex_entry0_7 (_ BitVec 32)) (v_arrayElimCell_14 (_ BitVec 1))) (let ((.cse0 (bvneg v_arrayElimCell_14))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (select (store |c_#valid| |v_ldv_malloc_#res.base_58| (_ bv0 1)) v_antiDerIndex_entry0_7))))) (bvneg (bvneg (bvneg (bvneg .cse0)))))) (not (= (_ bv0 1) .cse0)) (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_ldv_malloc_#res.base_58|))))))) (exists ((v_antiDerIndex_entry0_7 (_ BitVec 32)) (v_arrayElimCell_14 (_ BitVec 1)) (|v_alloc_16_#t~ret38.base_72| (_ BitVec 32))) (let ((.cse1 (bvneg v_arrayElimCell_14))) (and (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_old(#valid)| |v_alloc_16_#t~ret38.base_72|))))) (not (= (_ bv0 1) (bvadd (bvneg (select (store |c_old(#valid)| |v_alloc_16_#t~ret38.base_72| (_ bv0 1)) v_antiDerIndex_entry0_7)) (bvneg .cse1)))) (= (_ bv0 1) .cse1)))) (forall ((|v_old(#valid)_BEFORE_CALL_20| (Array (_ BitVec 32) (_ BitVec 1)))) (exists ((|v_entry_point_#t~ret40.base_53| (_ BitVec 32))) (= (_ bv0 1) (bvneg (bvneg (bvneg (select |v_old(#valid)_BEFORE_CALL_20| |v_entry_point_#t~ret40.base_53|)))))))) (exists ((|~#ldv_global_msg_list~0.base| (_ BitVec 32))) (and (or (= (_ bv0 1) (select |c_#valid| (_ bv0 32))) (= (_ bv0 32) |~#ldv_global_msg_list~0.base|)) (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (select |c_#valid| |~#ldv_global_msg_list~0.base|))))))) is different from false [2021-10-28 23:28:05,670 WARN L207 SmtUtils]: Spent 16.05 s on a formula simplification. DAG size of input: 51 DAG size of output: 42 [2021-10-28 23:28:37,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:28:37,874 INFO L93 Difference]: Finished difference Result 41 states and 41 transitions. [2021-10-28 23:28:37,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-28 23:28:37,875 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 19 states have (on average 2.0) internal successors, (38), 17 states have internal predecessors, (38), 9 states have call successors, (11), 7 states have call predecessors, (11), 9 states have return successors, (10), 10 states have call predecessors, (10), 8 states have call successors, (10) Word has length 30 [2021-10-28 23:28:37,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:28:37,876 INFO L225 Difference]: With dead ends: 41 [2021-10-28 23:28:37,876 INFO L226 Difference]: Without dead ends: 31 [2021-10-28 23:28:37,877 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 67 SyntacticMatches, 9 SemanticMatches, 28 ConstructedPredicates, 10 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 54.7s TimeCoverageRelationStatistics Valid=98, Invalid=282, Unknown=40, NotChecked=450, Total=870 [2021-10-28 23:28:37,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-10-28 23:28:37,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2021-10-28 23:28:37,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 19 states have (on average 1.0) internal successors, (19), 19 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 23:28:37,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 30 transitions. [2021-10-28 23:28:37,880 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 30 transitions. Word has length 30 [2021-10-28 23:28:37,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:28:37,880 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 30 transitions. [2021-10-28 23:28:37,881 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 19 states have (on average 2.0) internal successors, (38), 17 states have internal predecessors, (38), 9 states have call successors, (11), 7 states have call predecessors, (11), 9 states have return successors, (10), 10 states have call predecessors, (10), 8 states have call successors, (10) [2021-10-28 23:28:37,881 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 30 transitions. [2021-10-28 23:28:37,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-28 23:28:37,882 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:28:37,882 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:28:37,888 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d5fd96-0437-4338-be91-483a59874669/bin/uautomizer-GMMbpWq8iD/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2021-10-28 23:28:38,093 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d5fd96-0437-4338-be91-483a59874669/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-28 23:28:38,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d5fd96-0437-4338-be91-483a59874669/bin/uautomizer-GMMbpWq8iD/cvc4 --incremental --print-success --lang smt,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d5fd96-0437-4338-be91-483a59874669/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:28:38,286 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-28 23:28:38,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:28:38,286 INFO L85 PathProgramCache]: Analyzing trace with hash 1144173514, now seen corresponding path program 1 times [2021-10-28 23:28:38,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:28:38,287 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [475066152] [2021-10-28 23:28:38,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:28:38,287 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:28:38,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d5fd96-0437-4338-be91-483a59874669/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:28:38,288 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d5fd96-0437-4338-be91-483a59874669/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:28:38,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d5fd96-0437-4338-be91-483a59874669/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-28 23:28:38,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:28:38,576 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-28 23:28:38,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:28:38,602 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-10-28 23:28:38,602 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 14 treesize of output 15 [2021-10-28 23:28:38,908 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 23:28:38,908 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:28:39,147 INFO L354 Elim1Store]: treesize reduction 10, result has 73.0 percent of original size [2021-10-28 23:28:39,148 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 32 treesize of output 46 [2021-10-28 23:28:40,414 INFO L354 Elim1Store]: treesize reduction 11, result has 60.7 percent of original size [2021-10-28 23:28:40,414 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 43 [2021-10-28 23:28:41,071 INFO L354 Elim1Store]: treesize reduction 11, result has 60.7 percent of original size [2021-10-28 23:28:41,072 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 81 treesize of output 86 [2021-10-28 23:28:42,087 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 23:28:42,087 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:28:42,087 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [475066152] [2021-10-28 23:28:42,087 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [475066152] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:28:42,087 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:28:42,087 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 14] imperfect sequences [] total 23 [2021-10-28 23:28:42,088 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214803610] [2021-10-28 23:28:42,088 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-10-28 23:28:42,088 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:28:42,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-10-28 23:28:42,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=466, Unknown=0, NotChecked=0, Total=552 [2021-10-28 23:28:42,089 INFO L87 Difference]: Start difference. First operand 31 states and 30 transitions. Second operand has 24 states, 20 states have (on average 1.85) internal successors, (37), 16 states have internal predecessors, (37), 9 states have call successors, (11), 6 states have call predecessors, (11), 9 states have return successors, (10), 9 states have call predecessors, (10), 7 states have call successors, (10) [2021-10-28 23:28:42,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:28:42,493 INFO L93 Difference]: Finished difference Result 30 states and 29 transitions. [2021-10-28 23:28:42,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 23:28:42,494 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 20 states have (on average 1.85) internal successors, (37), 16 states have internal predecessors, (37), 9 states have call successors, (11), 6 states have call predecessors, (11), 9 states have return successors, (10), 9 states have call predecessors, (10), 7 states have call successors, (10) Word has length 30 [2021-10-28 23:28:42,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:28:42,494 INFO L225 Difference]: With dead ends: 30 [2021-10-28 23:28:42,494 INFO L226 Difference]: Without dead ends: 0 [2021-10-28 23:28:42,495 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 34 SyntacticMatches, 3 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=173, Invalid=757, Unknown=0, NotChecked=0, Total=930 [2021-10-28 23:28:42,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-28 23:28:42,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-28 23:28:42,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:28:42,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-28 23:28:42,496 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 30 [2021-10-28 23:28:42,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:28:42,496 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:28:42,496 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 20 states have (on average 1.85) internal successors, (37), 16 states have internal predecessors, (37), 9 states have call successors, (11), 6 states have call predecessors, (11), 9 states have return successors, (10), 9 states have call predecessors, (10), 7 states have call successors, (10) [2021-10-28 23:28:42,497 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-28 23:28:42,497 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-28 23:28:42,498 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_msg_allocErr0REQUIRES_VIOLATION [2021-10-28 23:28:42,499 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_msg_allocErr1REQUIRES_VIOLATION [2021-10-28 23:28:42,499 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_kref_initErr0REQUIRES_VIOLATION [2021-10-28 23:28:42,499 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_kref_initErr1REQUIRES_VIOLATION [2021-10-28 23:28:42,499 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION [2021-10-28 23:28:42,499 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION [2021-10-28 23:28:42,499 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION [2021-10-28 23:28:42,499 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION [2021-10-28 23:28:42,500 INFO L764 garLoopResultBuilder]: Registering result SAFE for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION [2021-10-28 23:28:42,500 INFO L764 garLoopResultBuilder]: Registering result SAFE for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION [2021-10-28 23:28:42,500 INFO L764 garLoopResultBuilder]: Registering result SAFE for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION [2021-10-28 23:28:42,500 INFO L764 garLoopResultBuilder]: Registering result SAFE for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION [2021-10-28 23:28:42,500 INFO L764 garLoopResultBuilder]: Registering result SAFE for location __ldv_list_addErr0REQUIRES_VIOLATION [2021-10-28 23:28:42,500 INFO L764 garLoopResultBuilder]: Registering result SAFE for location __ldv_list_addErr1REQUIRES_VIOLATION [2021-10-28 23:28:42,501 INFO L764 garLoopResultBuilder]: Registering result SAFE for location __ldv_list_addErr2REQUIRES_VIOLATION [2021-10-28 23:28:42,501 INFO L764 garLoopResultBuilder]: Registering result SAFE for location __ldv_list_addErr3REQUIRES_VIOLATION [2021-10-28 23:28:42,501 INFO L764 garLoopResultBuilder]: Registering result SAFE for location __ldv_list_addErr4REQUIRES_VIOLATION [2021-10-28 23:28:42,501 INFO L764 garLoopResultBuilder]: Registering result SAFE for location __ldv_list_addErr5REQUIRES_VIOLATION [2021-10-28 23:28:42,501 INFO L764 garLoopResultBuilder]: Registering result SAFE for location __ldv_list_addErr6REQUIRES_VIOLATION [2021-10-28 23:28:42,501 INFO L764 garLoopResultBuilder]: Registering result SAFE for location __ldv_list_addErr7REQUIRES_VIOLATION [2021-10-28 23:28:42,502 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION [2021-10-28 23:28:42,502 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION [2021-10-28 23:28:42,502 INFO L764 garLoopResultBuilder]: Registering result SAFE for location __ldv_list_delErr0REQUIRES_VIOLATION [2021-10-28 23:28:42,502 INFO L764 garLoopResultBuilder]: Registering result SAFE for location __ldv_list_delErr1REQUIRES_VIOLATION [2021-10-28 23:28:42,502 INFO L764 garLoopResultBuilder]: Registering result SAFE for location __ldv_list_delErr2REQUIRES_VIOLATION [2021-10-28 23:28:42,502 INFO L764 garLoopResultBuilder]: Registering result SAFE for location __ldv_list_delErr3REQUIRES_VIOLATION [2021-10-28 23:28:42,502 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION [2021-10-28 23:28:42,502 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION [2021-10-28 23:28:42,503 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION [2021-10-28 23:28:42,503 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION [2021-10-28 23:28:42,503 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_list_addErr0REQUIRES_VIOLATION [2021-10-28 23:28:42,503 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_list_addErr1REQUIRES_VIOLATION [2021-10-28 23:28:42,503 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_destroy_msgsErr0REQUIRES_VIOLATION [2021-10-28 23:28:42,503 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_destroy_msgsErr1REQUIRES_VIOLATION [2021-10-28 23:28:42,503 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_destroy_msgsErr2REQUIRES_VIOLATION [2021-10-28 23:28:42,503 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_destroy_msgsErr3REQUIRES_VIOLATION [2021-10-28 23:28:42,503 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_destroy_msgsErr4REQUIRES_VIOLATION [2021-10-28 23:28:42,503 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_destroy_msgsErr5REQUIRES_VIOLATION [2021-10-28 23:28:42,503 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION [2021-10-28 23:28:42,504 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION [2021-10-28 23:28:42,504 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_msg_freeErr0REQUIRES_VIOLATION [2021-10-28 23:28:42,504 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_msg_freeErr1REQUIRES_VIOLATION [2021-10-28 23:28:42,504 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:28:42,504 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:28:42,504 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:28:42,505 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:28:42,505 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:28:42,505 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:28:42,505 INFO L764 garLoopResultBuilder]: Registering result SAFE for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-10-28 23:28:42,505 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_msg_fillErr0REQUIRES_VIOLATION [2021-10-28 23:28:42,505 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_msg_fillErr1REQUIRES_VIOLATION [2021-10-28 23:28:42,505 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_msg_fillErr2REQUIRES_VIOLATION [2021-10-28 23:28:42,505 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_msg_fillErr3REQUIRES_VIOLATION [2021-10-28 23:28:42,505 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_msg_fillErr4REQUIRES_VIOLATION [2021-10-28 23:28:42,505 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_msg_fillErr5REQUIRES_VIOLATION [2021-10-28 23:28:42,505 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION [2021-10-28 23:28:42,506 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION [2021-10-28 23:28:42,506 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:28:42,506 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:28:42,506 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:28:42,506 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:28:42,506 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:28:42,506 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:28:42,506 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_kobject_createErr0REQUIRES_VIOLATION [2021-10-28 23:28:42,506 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_kobject_createErr1REQUIRES_VIOLATION [2021-10-28 23:28:42,506 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_list_delErr0REQUIRES_VIOLATION [2021-10-28 23:28:42,506 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_list_delErr1REQUIRES_VIOLATION [2021-10-28 23:28:42,506 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_list_delErr2REQUIRES_VIOLATION [2021-10-28 23:28:42,507 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_list_delErr3REQUIRES_VIOLATION [2021-10-28 23:28:42,507 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_list_add_tailErr0REQUIRES_VIOLATION [2021-10-28 23:28:42,507 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_list_add_tailErr1REQUIRES_VIOLATION [2021-10-28 23:28:42,507 INFO L764 garLoopResultBuilder]: Registering result SAFE for location free_16Err0ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:28:42,507 INFO L764 garLoopResultBuilder]: Registering result SAFE for location free_16Err1ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:28:42,507 INFO L764 garLoopResultBuilder]: Registering result SAFE for location free_16Err2ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:28:42,517 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d5fd96-0437-4338-be91-483a59874669/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-28 23:28:42,707 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d5fd96-0437-4338-be91-483a59874669/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:28:42,712 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:28:42,714 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:28:42,717 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:28:42 BoogieIcfgContainer [2021-10-28 23:28:42,717 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:28:42,717 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:28:42,718 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:28:42,718 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:28:42,718 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:26:47" (3/4) ... [2021-10-28 23:28:42,721 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-28 23:28:42,728 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_submit_msg [2021-10-28 23:28:42,728 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.setCurrentRoundingMode [2021-10-28 23:28:42,728 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_positive [2021-10-28 23:28:42,728 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint64_identity [2021-10-28 23:28:42,728 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_msg_free [2021-10-28 23:28:42,728 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2021-10-28 23:28:42,728 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ##fun~$Pointer$~TO~VOID [2021-10-28 23:28:42,729 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_nonpositive [2021-10-28 23:28:42,729 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.meminit [2021-10-28 23:28:42,729 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_msg_alloc [2021-10-28 23:28:42,729 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_kobject_init_internal [2021-10-28 23:28:42,729 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_kref_init [2021-10-28 23:28:42,729 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_msg_fill [2021-10-28 23:28:42,729 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_kref_sub [2021-10-28 23:28:42,729 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_atomic_add_return [2021-10-28 23:28:42,730 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_32 [2021-10-28 23:28:42,730 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_kobject_cleanup [2021-10-28 23:28:42,730 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memcpy [2021-10-28 23:28:42,730 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure LDV_INIT_LIST_HEAD [2021-10-28 23:28:42,730 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __ldv_list_add [2021-10-28 23:28:42,730 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2021-10-28 23:28:42,730 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_dev_set_drvdata [2021-10-28 23:28:42,730 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_kobject_create [2021-10-28 23:28:42,731 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_kobject_del [2021-10-28 23:28:42,731 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __ldv_list_del [2021-10-28 23:28:42,731 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_64 [2021-10-28 23:28:42,731 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_list_del [2021-10-28 23:28:42,731 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_kref_get [2021-10-28 23:28:42,731 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_kobject_put [2021-10-28 23:28:42,731 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint32_identity [2021-10-28 23:28:42,731 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_kobject_init [2021-10-28 23:28:42,731 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_atomic_sub_return [2021-10-28 23:28:42,732 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_list_add_tail [2021-10-28 23:28:42,732 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint16_identity [2021-10-28 23:28:42,732 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure free_16 [2021-10-28 23:28:42,732 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure entry_point [2021-10-28 23:28:42,732 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_list_add [2021-10-28 23:28:42,732 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_destroy_msgs [2021-10-28 23:28:42,732 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memset [2021-10-28 23:28:42,732 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure f [2021-10-28 23:28:42,733 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_kobject_release [2021-10-28 23:28:42,733 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure g [2021-10-28 23:28:42,733 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure alloc_16 [2021-10-28 23:28:42,733 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2021-10-28 23:28:42,733 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_zalloc [2021-10-28 23:28:42,733 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_kref_put [2021-10-28 23:28:42,733 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_kobject_get [2021-10-28 23:28:42,734 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_dev_get_drvdata [2021-10-28 23:28:42,752 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 39 nodes and edges [2021-10-28 23:28:42,752 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-10-28 23:28:42,752 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-28 23:28:42,753 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-28 23:28:42,753 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 23:28:42,805 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d5fd96-0437-4338-be91-483a59874669/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 23:28:42,806 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:28:42,806 INFO L168 Benchmark]: Toolchain (without parser) took 117399.75 ms. Allocated memory was 75.5 MB in the beginning and 115.3 MB in the end (delta: 39.8 MB). Free memory was 55.0 MB in the beginning and 66.8 MB in the end (delta: -11.8 MB). Peak memory consumption was 28.0 MB. Max. memory is 16.1 GB. [2021-10-28 23:28:42,807 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 75.5 MB. Free memory is still 56.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:28:42,807 INFO L168 Benchmark]: CACSL2BoogieTranslator took 744.00 ms. Allocated memory is still 75.5 MB. Free memory was 54.8 MB in the beginning and 40.7 MB in the end (delta: 14.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-28 23:28:42,808 INFO L168 Benchmark]: Boogie Preprocessor took 117.12 ms. Allocated memory is still 75.5 MB. Free memory was 40.7 MB in the beginning and 35.9 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:28:42,808 INFO L168 Benchmark]: RCFGBuilder took 1223.03 ms. Allocated memory was 75.5 MB in the beginning and 94.4 MB in the end (delta: 18.9 MB). Free memory was 35.9 MB in the beginning and 58.1 MB in the end (delta: -22.2 MB). Peak memory consumption was 13.9 MB. Max. memory is 16.1 GB. [2021-10-28 23:28:42,809 INFO L168 Benchmark]: TraceAbstraction took 115222.10 ms. Allocated memory was 94.4 MB in the beginning and 115.3 MB in the end (delta: 21.0 MB). Free memory was 57.7 MB in the beginning and 72.1 MB in the end (delta: -14.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:28:42,809 INFO L168 Benchmark]: Witness Printer took 88.24 ms. Allocated memory is still 115.3 MB. Free memory was 72.1 MB in the beginning and 66.8 MB in the end (delta: 5.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-28 23:28:42,811 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 75.5 MB. Free memory is still 56.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 744.00 ms. Allocated memory is still 75.5 MB. Free memory was 54.8 MB in the beginning and 40.7 MB in the end (delta: 14.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 117.12 ms. Allocated memory is still 75.5 MB. Free memory was 40.7 MB in the beginning and 35.9 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1223.03 ms. Allocated memory was 75.5 MB in the beginning and 94.4 MB in the end (delta: 18.9 MB). Free memory was 35.9 MB in the beginning and 58.1 MB in the end (delta: -22.2 MB). Peak memory consumption was 13.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 115222.10 ms. Allocated memory was 94.4 MB in the beginning and 115.3 MB in the end (delta: 21.0 MB). Free memory was 57.7 MB in the beginning and 72.1 MB in the end (delta: -14.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 16.1 GB. * Witness Printer took 88.24 ms. Allocated memory is still 115.3 MB. Free memory was 72.1 MB in the beginning and 66.8 MB in the end (delta: 5.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.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 - PositiveResult [Line: 578]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 578]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 682]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 682]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 658]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 658]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 660]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 660]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 540]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 540]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 541]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 541]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 547]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 547]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 548]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 548]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 549]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 549]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 550]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 550]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 623]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 623]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 554]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 554]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 555]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 555]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 666]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 666]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 668]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 668]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 559]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 559]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 607]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 607]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 607]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 607]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 607]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 607]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 619]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 619]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 593]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 593]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 593]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 593]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 593]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 594]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 594]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 594]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 777]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 587]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 587]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 587]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 587]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 588]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 588]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 699]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 699]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 700]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 700]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 700]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 702]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 702]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 702]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 744]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 744]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 567]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 567]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 567]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 567]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 563]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 563]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 769]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 769]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 769]: free always succeeds For all program executions holds that free always succeeds at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 49 procedures, 347 locations, 74 error locations. Started 1 CEGAR loops. OverallTime: 115.1s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 75.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 261 SDtfs, 201 SDslu, 1282 SDs, 0 SdLazy, 823 SolverSat, 82 SolverUnsat, 21 SolverUnknown, 0 SolverNotchecked, 43.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 497 GetRequests, 361 SyntacticMatches, 19 SemanticMatches, 117 ConstructedPredicates, 10 IntricatePredicates, 0 DeprecatedPredicates, 361 ImplicationChecksByTransitivity, 56.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=107occurred in iteration=0, InterpolantAutomatonStates: 91, 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, 9 MinimizatonAttempts, 29 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 35.5s InterpolantComputationTime, 252 NumberOfCodeBlocks, 252 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 455 ConstructedInterpolants, 48 QuantifiedInterpolants, 3427 SizeOfPredicates, 26 NumberOfNonLiveVariables, 855 ConjunctsInSsa, 127 ConjunctsInUnsatCore, 19 InterpolantComputations, 19 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 - AllSpecificationsHoldResult: All specifications hold 74 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-28 23:28:42,860 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d5fd96-0437-4338-be91-483a59874669/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...