./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt --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 25c50494ad64d3207b5cd57d9b83fbf1aea0c348 ................................................................................................................................... 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_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt --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 25c50494ad64d3207b5cd57d9b83fbf1aea0c348 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 00:22:06,949 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:22:06,952 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:22:07,007 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:22:07,008 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:22:07,012 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:22:07,014 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:22:07,018 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:22:07,021 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:22:07,026 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:22:07,027 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:22:07,029 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:22:07,030 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:22:07,033 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:22:07,035 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:22:07,043 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:22:07,045 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:22:07,046 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:22:07,049 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:22:07,057 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:22:07,059 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:22:07,061 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:22:07,064 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:22:07,065 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:22:07,075 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:22:07,075 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:22:07,076 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:22:07,078 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:22:07,079 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:22:07,081 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:22:07,081 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:22:07,083 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:22:07,085 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:22:07,086 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:22:07,088 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:22:07,088 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:22:07,089 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:22:07,090 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:22:07,090 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:22:07,091 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:22:07,092 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:22:07,093 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-10-13 00:22:07,138 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:22:07,138 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:22:07,139 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:22:07,139 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:22:07,147 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:22:07,148 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:22:07,148 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:22:07,148 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:22:07,148 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:22:07,149 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 00:22:07,150 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:22:07,150 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:22:07,150 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:22:07,150 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-13 00:22:07,151 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-13 00:22:07,151 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-13 00:22:07,151 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 00:22:07,151 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 00:22:07,152 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:22:07,152 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:22:07,152 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:22:07,152 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:22:07,153 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 00:22:07,153 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:22:07,153 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:22:07,153 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 00:22:07,153 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:22:07,154 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 00:22:07,154 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:22:07,156 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_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 25c50494ad64d3207b5cd57d9b83fbf1aea0c348 [2021-10-13 00:22:07,476 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:22:07,503 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:22:07,506 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:22:07,507 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:22:07,508 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:22:07,509 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_2.i [2021-10-13 00:22:07,591 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/data/c4752fab2/7f4560896c174273808f24546339af49/FLAG33633004a [2021-10-13 00:22:08,202 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:22:08,203 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/sv-benchmarks/c/ldv-memsafety/memleaks_test18_2.i [2021-10-13 00:22:08,220 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/data/c4752fab2/7f4560896c174273808f24546339af49/FLAG33633004a [2021-10-13 00:22:08,480 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/data/c4752fab2/7f4560896c174273808f24546339af49 [2021-10-13 00:22:08,483 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:22:08,485 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-13 00:22:08,486 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:22:08,487 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:22:08,494 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:22:08,495 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:22:08" (1/1) ... [2021-10-13 00:22:08,496 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b4d6d00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:22:08, skipping insertion in model container [2021-10-13 00:22:08,497 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:22:08" (1/1) ... [2021-10-13 00:22:08,504 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:22:08,551 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:22:09,052 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:22:09,075 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) [2021-10-13 00:22:09,076 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@10244e0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:22:09, skipping insertion in model container [2021-10-13 00:22:09,077 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:22:09,078 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-10-13 00:22:09,081 INFO L168 Benchmark]: Toolchain (without parser) took 594.26 ms. Allocated memory is still 117.4 MB. Free memory was 74.0 MB in the beginning and 86.7 MB in the end (delta: -12.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 00:22:09,082 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 117.4 MB. Free memory is still 92.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:22:09,084 INFO L168 Benchmark]: CACSL2BoogieTranslator took 591.35 ms. Allocated memory is still 117.4 MB. Free memory was 73.8 MB in the beginning and 86.7 MB in the end (delta: -12.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 00:22:09,087 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 117.4 MB. Free memory is still 92.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 591.35 ms. Allocated memory is still 117.4 MB. Free memory was 73.8 MB in the beginning and 86.7 MB in the end (delta: -12.9 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-4e77c04 [2021-10-13 00:22:11,397 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:22:11,399 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:22:11,458 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:22:11,459 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:22:11,464 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:22:11,466 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:22:11,477 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:22:11,479 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:22:11,480 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:22:11,481 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:22:11,483 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:22:11,483 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:22:11,485 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:22:11,489 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:22:11,492 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:22:11,499 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:22:11,507 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:22:11,509 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:22:11,514 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:22:11,516 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:22:11,521 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:22:11,524 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:22:11,526 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:22:11,533 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:22:11,533 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:22:11,534 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:22:11,535 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:22:11,536 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:22:11,538 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:22:11,538 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:22:11,539 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:22:11,541 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:22:11,542 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:22:11,544 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:22:11,544 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:22:11,545 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:22:11,545 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:22:11,546 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:22:11,548 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:22:11,549 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:22:11,550 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-13 00:22:11,604 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:22:11,604 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:22:11,605 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:22:11,605 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:22:11,607 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:22:11,608 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:22:11,608 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:22:11,609 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:22:11,609 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:22:11,610 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 00:22:11,611 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:22:11,611 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:22:11,611 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:22:11,611 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-13 00:22:11,612 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-13 00:22:11,612 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-13 00:22:11,612 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 00:22:11,612 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 00:22:11,613 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-13 00:22:11,613 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-13 00:22:11,613 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:22:11,613 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:22:11,614 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:22:11,614 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:22:11,614 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 00:22:11,614 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:22:11,615 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:22:11,615 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 00:22:11,615 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-13 00:22:11,615 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-13 00:22:11,616 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:22:11,616 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 00:22:11,616 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_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 25c50494ad64d3207b5cd57d9b83fbf1aea0c348 [2021-10-13 00:22:11,982 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:22:12,009 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:22:12,012 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:22:12,013 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:22:12,014 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:22:12,015 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_2.i [2021-10-13 00:22:12,101 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/data/da66dc67c/8589880b75ff4b44b3eb3c2eb26a5384/FLAGc36d7c943 [2021-10-13 00:22:12,850 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:22:12,850 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/sv-benchmarks/c/ldv-memsafety/memleaks_test18_2.i [2021-10-13 00:22:12,867 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/data/da66dc67c/8589880b75ff4b44b3eb3c2eb26a5384/FLAGc36d7c943 [2021-10-13 00:22:12,882 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/data/da66dc67c/8589880b75ff4b44b3eb3c2eb26a5384 [2021-10-13 00:22:12,885 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:22:12,886 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-13 00:22:12,888 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:22:12,888 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:22:12,895 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:22:12,896 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:22:12" (1/1) ... [2021-10-13 00:22:12,897 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25f11728 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:22:12, skipping insertion in model container [2021-10-13 00:22:12,897 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:22:12" (1/1) ... [2021-10-13 00:22:12,905 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:22:12,968 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:22:13,486 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:22:13,510 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-13 00:22:13,523 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:22:13,608 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:22:13,615 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:22:13,659 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:22:13,704 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:22:13,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:22:13 WrapperNode [2021-10-13 00:22:13,705 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:22:13,706 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:22:13,706 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:22:13,706 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:22:13,718 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:22:13" (1/1) ... [2021-10-13 00:22:13,718 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:22:13" (1/1) ... [2021-10-13 00:22:13,742 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:22:13" (1/1) ... [2021-10-13 00:22:13,742 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:22:13" (1/1) ... [2021-10-13 00:22:13,805 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:22:13" (1/1) ... [2021-10-13 00:22:13,811 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:22:13" (1/1) ... [2021-10-13 00:22:13,818 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:22:13" (1/1) ... [2021-10-13 00:22:13,834 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:22:13,846 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:22:13,846 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:22:13,847 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:22:13,848 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:22:13" (1/1) ... [2021-10-13 00:22:13,856 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:22:13,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:22:13,879 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 00:22:13,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 00:22:13,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-13 00:22:13,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:22:13,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-10-13 00:22:13,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-10-13 00:22:13,918 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-10-13 00:22:13,918 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-10-13 00:22:13,919 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-10-13 00:22:13,919 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-10-13 00:22:13,919 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-10-13 00:22:13,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-10-13 00:22:13,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-10-13 00:22:13,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-10-13 00:22:13,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-10-13 00:22:13,920 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-10-13 00:22:13,920 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-10-13 00:22:13,920 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-10-13 00:22:13,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-10-13 00:22:13,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-10-13 00:22:13,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-10-13 00:22:13,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-10-13 00:22:13,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-10-13 00:22:13,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-10-13 00:22:13,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-10-13 00:22:13,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-10-13 00:22:13,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-10-13 00:22:13,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-10-13 00:22:13,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-10-13 00:22:13,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-10-13 00:22:13,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-10-13 00:22:13,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-10-13 00:22:13,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-10-13 00:22:13,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-10-13 00:22:13,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-10-13 00:22:13,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-10-13 00:22:13,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-10-13 00:22:13,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-10-13 00:22:13,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-10-13 00:22:13,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-10-13 00:22:13,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-10-13 00:22:13,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-10-13 00:22:13,925 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-10-13 00:22:13,925 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-10-13 00:22:13,926 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-10-13 00:22:13,926 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-13 00:22:13,926 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-10-13 00:22:13,926 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-10-13 00:22:13,926 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-10-13 00:22:13,927 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-10-13 00:22:13,927 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-10-13 00:22:13,927 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-10-13 00:22:13,927 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-10-13 00:22:13,927 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-10-13 00:22:13,928 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-10-13 00:22:13,928 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-10-13 00:22:13,928 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-10-13 00:22:13,928 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-10-13 00:22:13,928 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-10-13 00:22:13,929 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-10-13 00:22:13,929 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-10-13 00:22:13,929 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-10-13 00:22:13,929 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-10-13 00:22:13,929 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-10-13 00:22:13,929 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-10-13 00:22:13,930 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-10-13 00:22:13,930 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-10-13 00:22:13,930 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-10-13 00:22:13,930 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-10-13 00:22:13,930 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-10-13 00:22:13,931 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-10-13 00:22:13,931 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-10-13 00:22:13,931 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-10-13 00:22:13,931 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-10-13 00:22:13,931 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-10-13 00:22:13,932 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-10-13 00:22:13,932 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-10-13 00:22:13,932 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-10-13 00:22:13,932 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-10-13 00:22:13,932 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-10-13 00:22:13,932 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-10-13 00:22:13,933 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-10-13 00:22:13,933 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-10-13 00:22:13,933 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-10-13 00:22:13,933 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-10-13 00:22:13,933 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-10-13 00:22:13,934 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-10-13 00:22:13,934 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-10-13 00:22:13,934 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-10-13 00:22:13,934 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-10-13 00:22:13,934 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-10-13 00:22:13,934 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-10-13 00:22:13,935 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-10-13 00:22:13,935 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-10-13 00:22:13,935 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-10-13 00:22:13,935 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-10-13 00:22:13,935 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-10-13 00:22:13,936 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-10-13 00:22:13,936 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-10-13 00:22:13,936 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-10-13 00:22:13,936 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-10-13 00:22:13,936 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-10-13 00:22:13,936 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-10-13 00:22:13,937 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-10-13 00:22:13,937 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-10-13 00:22:13,937 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-10-13 00:22:13,937 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-10-13 00:22:13,937 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-10-13 00:22:13,937 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-10-13 00:22:13,938 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-10-13 00:22:13,938 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-10-13 00:22:13,938 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-10-13 00:22:13,938 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-13 00:22:13,938 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-10-13 00:22:13,939 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-10-13 00:22:13,939 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-10-13 00:22:13,939 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-10-13 00:22:13,939 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-10-13 00:22:13,939 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-10-13 00:22:13,939 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-10-13 00:22:13,940 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-10-13 00:22:13,940 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-10-13 00:22:13,940 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-10-13 00:22:13,941 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-10-13 00:22:13,942 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-10-13 00:22:13,942 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-10-13 00:22:13,946 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-10-13 00:22:13,946 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-10-13 00:22:13,947 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-10-13 00:22:13,947 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-10-13 00:22:13,949 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-10-13 00:22:13,950 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-10-13 00:22:13,950 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-10-13 00:22:13,950 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-10-13 00:22:13,950 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-10-13 00:22:13,956 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-10-13 00:22:13,956 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-10-13 00:22:13,957 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-10-13 00:22:13,957 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-10-13 00:22:13,957 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-10-13 00:22:13,957 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-10-13 00:22:13,957 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-10-13 00:22:13,958 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-10-13 00:22:13,958 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-10-13 00:22:13,958 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-10-13 00:22:13,958 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-10-13 00:22:13,958 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-10-13 00:22:13,959 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-10-13 00:22:13,959 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-10-13 00:22:13,959 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-10-13 00:22:13,959 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-10-13 00:22:13,959 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-10-13 00:22:13,959 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-10-13 00:22:13,960 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-10-13 00:22:13,960 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-10-13 00:22:13,960 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-10-13 00:22:13,960 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-10-13 00:22:13,960 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-13 00:22:13,960 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-10-13 00:22:13,961 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-10-13 00:22:13,961 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-10-13 00:22:13,961 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-10-13 00:22:13,961 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-10-13 00:22:13,961 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-13 00:22:13,962 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-10-13 00:22:13,962 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-10-13 00:22:13,962 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-10-13 00:22:13,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-13 00:22:13,962 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-10-13 00:22:13,962 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-10-13 00:22:13,963 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-10-13 00:22:13,963 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-13 00:22:13,963 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-10-13 00:22:13,963 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-10-13 00:22:13,963 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-10-13 00:22:13,963 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-10-13 00:22:13,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-10-13 00:22:13,964 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-10-13 00:22:13,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 00:22:13,964 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-10-13 00:22:13,964 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-10-13 00:22:13,964 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-10-13 00:22:13,965 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-10-13 00:22:13,965 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-10-13 00:22:13,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-13 00:22:13,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-13 00:22:13,965 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-10-13 00:22:13,965 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-10-13 00:22:13,966 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-10-13 00:22:13,966 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-10-13 00:22:13,966 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-10-13 00:22:13,966 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-10-13 00:22:13,966 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-10-13 00:22:13,966 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-10-13 00:22:13,967 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-10-13 00:22:13,967 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-10-13 00:22:13,967 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-10-13 00:22:13,967 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-10-13 00:22:13,967 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-10-13 00:22:13,967 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-10-13 00:22:13,968 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-10-13 00:22:13,970 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-10-13 00:22:13,970 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-10-13 00:22:13,970 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-10-13 00:22:13,970 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-13 00:22:13,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-13 00:22:13,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:22:13,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-13 00:22:13,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:22:13,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-10-13 00:22:13,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-10-13 00:22:13,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-10-13 00:22:13,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-10-13 00:22:13,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-10-13 00:22:14,555 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 00:22:14,935 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 00:22:15,344 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:22:15,344 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2021-10-13 00:22:15,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:22:15 BoogieIcfgContainer [2021-10-13 00:22:15,351 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:22:15,353 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 00:22:15,354 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 00:22:15,357 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 00:22:15,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:22:12" (1/3) ... [2021-10-13 00:22:15,358 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2eaf00f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:22:15, skipping insertion in model container [2021-10-13 00:22:15,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:22:13" (2/3) ... [2021-10-13 00:22:15,360 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2eaf00f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:22:15, skipping insertion in model container [2021-10-13 00:22:15,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:22:15" (3/3) ... [2021-10-13 00:22:15,362 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test18_2.i [2021-10-13 00:22:15,368 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 00:22:15,368 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 81 error locations. [2021-10-13 00:22:15,433 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 00:22:15,444 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, mConcurrency=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 [2021-10-13 00:22:15,444 INFO L340 AbstractCegarLoop]: Starting to check reachability of 81 error locations. [2021-10-13 00:22:15,465 INFO L276 IsEmpty]: Start isEmpty. Operand has 117 states, 66 states have (on average 1.606060606060606) internal successors, (106), 94 states have internal predecessors, (106), 12 states have call successors, (12), 10 states have call predecessors, (12), 10 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2021-10-13 00:22:15,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-13 00:22:15,497 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:22:15,498 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:22:15,498 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-10-13 00:22:15,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:22:15,505 INFO L82 PathProgramCache]: Analyzing trace with hash -114808450, now seen corresponding path program 1 times [2021-10-13 00:22:15,518 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:22:15,518 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1606034818] [2021-10-13 00:22:15,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:22:15,519 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:22:15,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:22:15,523 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:22:15,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-13 00:22:15,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:22:15,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 00:22:15,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:22:15,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:22:15,847 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:22:15,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:22:15,986 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:22:15,986 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1606034818] [2021-10-13 00:22:15,987 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1606034818] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:22:15,988 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:22:15,988 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-13 00:22:15,990 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819846639] [2021-10-13 00:22:15,995 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 00:22:15,996 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:22:16,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 00:22:16,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:22:16,022 INFO L87 Difference]: Start difference. First operand has 117 states, 66 states have (on average 1.606060606060606) internal successors, (106), 94 states have internal predecessors, (106), 12 states have call successors, (12), 10 states have call predecessors, (12), 10 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-13 00:22:16,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:22:16,188 INFO L93 Difference]: Finished difference Result 78 states and 90 transitions. [2021-10-13 00:22:16,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 00:22:16,189 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 17 [2021-10-13 00:22:16,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:22:16,198 INFO L225 Difference]: With dead ends: 78 [2021-10-13 00:22:16,198 INFO L226 Difference]: Without dead ends: 75 [2021-10-13 00:22:16,200 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 19.8ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:22:16,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2021-10-13 00:22:16,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 48. [2021-10-13 00:22:16,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 28 states have (on average 1.5357142857142858) internal successors, (43), 38 states have internal predecessors, (43), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2021-10-13 00:22:16,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 54 transitions. [2021-10-13 00:22:16,260 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 54 transitions. Word has length 17 [2021-10-13 00:22:16,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:22:16,260 INFO L470 AbstractCegarLoop]: Abstraction has 48 states and 54 transitions. [2021-10-13 00:22:16,260 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-13 00:22:16,260 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 54 transitions. [2021-10-13 00:22:16,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-13 00:22:16,262 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:22:16,262 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:22:16,282 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-13 00:22:16,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:22:16,478 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 77 more)] === [2021-10-13 00:22:16,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:22:16,483 INFO L82 PathProgramCache]: Analyzing trace with hash 1628001885, now seen corresponding path program 1 times [2021-10-13 00:22:16,483 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:22:16,484 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [238561428] [2021-10-13 00:22:16,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:22:16,484 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:22:16,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:22:16,485 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:22:16,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-13 00:22:16,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:22:16,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-13 00:22:16,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:22:16,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:22:16,701 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:22:16,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:22:16,805 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:22:16,805 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [238561428] [2021-10-13 00:22:16,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [238561428] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:22:16,805 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:22:16,805 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-13 00:22:16,806 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535960631] [2021-10-13 00:22:16,807 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:22:16,807 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:22:16,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:22:16,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:22:16,808 INFO L87 Difference]: Start difference. First operand 48 states and 54 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-13 00:22:16,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:22:16,947 INFO L93 Difference]: Finished difference Result 76 states and 86 transitions. [2021-10-13 00:22:16,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:22:16,948 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 17 [2021-10-13 00:22:16,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:22:16,949 INFO L225 Difference]: With dead ends: 76 [2021-10-13 00:22:16,949 INFO L226 Difference]: Without dead ends: 73 [2021-10-13 00:22:16,950 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:22:16,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-10-13 00:22:16,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 54. [2021-10-13 00:22:16,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 33 states have (on average 1.5151515151515151) internal successors, (50), 43 states have internal predecessors, (50), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) [2021-10-13 00:22:16,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 64 transitions. [2021-10-13 00:22:16,958 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 64 transitions. Word has length 17 [2021-10-13 00:22:16,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:22:16,959 INFO L470 AbstractCegarLoop]: Abstraction has 54 states and 64 transitions. [2021-10-13 00:22:16,959 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-13 00:22:16,959 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 64 transitions. [2021-10-13 00:22:16,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-13 00:22:16,960 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:22:16,960 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:22:16,989 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-13 00:22:17,181 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:22:17,182 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-10-13 00:22:17,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:22:17,182 INFO L82 PathProgramCache]: Analyzing trace with hash 735393073, now seen corresponding path program 1 times [2021-10-13 00:22:17,183 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:22:17,183 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1695116881] [2021-10-13 00:22:17,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:22:17,183 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:22:17,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:22:17,184 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:22:17,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-13 00:22:17,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:22:17,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 00:22:17,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:22:17,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:22:17,480 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:22:17,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:22:17,570 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:22:17,571 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1695116881] [2021-10-13 00:22:17,571 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1695116881] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:22:17,571 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:22:17,571 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-13 00:22:17,571 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542542899] [2021-10-13 00:22:17,577 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 00:22:17,578 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:22:17,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 00:22:17,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-13 00:22:17,580 INFO L87 Difference]: Start difference. First operand 54 states and 64 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2021-10-13 00:22:17,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:22:17,677 INFO L93 Difference]: Finished difference Result 92 states and 111 transitions. [2021-10-13 00:22:17,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 00:22:17,679 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 18 [2021-10-13 00:22:17,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:22:17,681 INFO L225 Difference]: With dead ends: 92 [2021-10-13 00:22:17,681 INFO L226 Difference]: Without dead ends: 92 [2021-10-13 00:22:17,682 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 29.9ms TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2021-10-13 00:22:17,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2021-10-13 00:22:17,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 63. [2021-10-13 00:22:17,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 40 states have (on average 1.5) internal successors, (60), 51 states have internal predecessors, (60), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2021-10-13 00:22:17,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 80 transitions. [2021-10-13 00:22:17,708 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 80 transitions. Word has length 18 [2021-10-13 00:22:17,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:22:17,709 INFO L470 AbstractCegarLoop]: Abstraction has 63 states and 80 transitions. [2021-10-13 00:22:17,709 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2021-10-13 00:22:17,709 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 80 transitions. [2021-10-13 00:22:17,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-13 00:22:17,710 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:22:17,710 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:22:17,730 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-13 00:22:17,921 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:22:17,922 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting entry_pointErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-10-13 00:22:17,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:22:17,922 INFO L82 PathProgramCache]: Analyzing trace with hash -529470855, now seen corresponding path program 1 times [2021-10-13 00:22:17,923 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:22:17,923 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1419371938] [2021-10-13 00:22:17,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:22:17,923 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:22:17,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:22:17,926 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:22:17,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-13 00:22:18,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:22:18,123 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 00:22:18,125 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:22:18,190 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 [2021-10-13 00:22:18,353 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-10-13 00:22:18,355 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 26 [2021-10-13 00:22:18,400 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:22:18,400 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:22:18,743 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:22:18,743 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:22:18,743 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1419371938] [2021-10-13 00:22:18,743 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1419371938] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 00:22:18,744 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:22:18,744 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 7 [2021-10-13 00:22:18,744 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457913634] [2021-10-13 00:22:18,745 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-13 00:22:18,749 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:22:18,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-13 00:22:18,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-10-13 00:22:18,750 INFO L87 Difference]: Start difference. First operand 63 states and 80 transitions. Second operand has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-13 00:22:19,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:22:19,545 INFO L93 Difference]: Finished difference Result 163 states and 188 transitions. [2021-10-13 00:22:19,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-13 00:22:19,546 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 23 [2021-10-13 00:22:19,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:22:19,549 INFO L225 Difference]: With dead ends: 163 [2021-10-13 00:22:19,549 INFO L226 Difference]: Without dead ends: 163 [2021-10-13 00:22:19,549 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 34 SyntacticMatches, 6 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 247.5ms TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2021-10-13 00:22:19,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2021-10-13 00:22:19,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 79. [2021-10-13 00:22:19,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 55 states have (on average 1.509090909090909) internal successors, (83), 64 states have internal predecessors, (83), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (12), 9 states have call predecessors, (12), 7 states have call successors, (12) [2021-10-13 00:22:19,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 103 transitions. [2021-10-13 00:22:19,564 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 103 transitions. Word has length 23 [2021-10-13 00:22:19,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:22:19,565 INFO L470 AbstractCegarLoop]: Abstraction has 79 states and 103 transitions. [2021-10-13 00:22:19,565 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-13 00:22:19,565 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 103 transitions. [2021-10-13 00:22:19,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-13 00:22:19,567 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:22:19,567 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:22:19,578 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-10-13 00:22:19,778 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:22:19,778 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting entry_pointErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-10-13 00:22:19,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:22:19,778 INFO L82 PathProgramCache]: Analyzing trace with hash -529470854, now seen corresponding path program 1 times [2021-10-13 00:22:19,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:22:19,779 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [272852950] [2021-10-13 00:22:19,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:22:19,779 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:22:19,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:22:19,780 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:22:19,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-13 00:22:19,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:22:19,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-13 00:22:19,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:22:20,041 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 [2021-10-13 00:22:20,049 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 [2021-10-13 00:22:22,464 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-10-13 00:22:22,465 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2021-10-13 00:22:22,496 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-13 00:22:22,496 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 26 [2021-10-13 00:22:22,602 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:22:22,603 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:22:44,211 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 27 [2021-10-13 00:22:44,722 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 25 [2021-10-13 00:22:44,884 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:22:44,884 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:22:44,884 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [272852950] [2021-10-13 00:22:44,884 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [272852950] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 00:22:44,884 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:22:44,884 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2021-10-13 00:22:44,885 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951644310] [2021-10-13 00:22:44,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-10-13 00:22:44,885 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:22:44,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-13 00:22:44,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=256, Unknown=7, NotChecked=0, Total=306 [2021-10-13 00:22:44,886 INFO L87 Difference]: Start difference. First operand 79 states and 103 transitions. Second operand has 18 states, 15 states have (on average 1.8666666666666667) internal successors, (28), 16 states have internal predecessors, (28), 5 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-10-13 00:24:55,071 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (bvmul c_entry_point_~i~0 (_ bv4 32)))) (let ((.cse1 (bvadd (_ bv4 32) .cse0 c_entry_point_~array~0.offset))) (and (bvule (bvadd .cse0 c_entry_point_~array~0.offset) .cse1) (forall ((|v_ldv_malloc_#res.base_34| (_ BitVec 32))) (or (and (let ((.cse2 (bvmul c_entry_point_~i~0 (_ bv4 32)))) (bvule (bvadd .cse2 c_entry_point_~array~0.offset) (bvadd (_ bv4 32) .cse2 c_entry_point_~array~0.offset))) (forall ((v_ldv_malloc_~size_31 (_ BitVec 32))) (bvule (bvadd (_ bv4 32) (bvmul c_entry_point_~i~0 (_ bv4 32)) c_entry_point_~array~0.offset) (select (store |c_#length| |v_ldv_malloc_#res.base_34| v_ldv_malloc_~size_31) c_entry_point_~array~0.base)))) (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_ldv_malloc_#res.base_34|)))))) (= |c_old(#valid)| |c_#valid|) (= |c_#length| |c_old(#length)|) (= c_entry_point_~len~0 (_ bv10 32)) (bvule .cse1 (select |c_#length| c_entry_point_~array~0.base))))) is different from false [2021-10-13 00:26:19,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:26:19,203 INFO L93 Difference]: Finished difference Result 292 states and 353 transitions. [2021-10-13 00:26:19,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-13 00:26:19,204 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 15 states have (on average 1.8666666666666667) internal successors, (28), 16 states have internal predecessors, (28), 5 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 23 [2021-10-13 00:26:19,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:26:19,207 INFO L225 Difference]: With dead ends: 292 [2021-10-13 00:26:19,208 INFO L226 Difference]: Without dead ends: 292 [2021-10-13 00:26:19,208 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 49606.0ms TimeCoverageRelationStatistics Valid=155, Invalid=760, Unknown=19, NotChecked=58, Total=992 [2021-10-13 00:26:19,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2021-10-13 00:26:19,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 102. [2021-10-13 00:26:19,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 76 states have (on average 1.486842105263158) internal successors, (113), 85 states have internal predecessors, (113), 10 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (16), 11 states have call predecessors, (16), 9 states have call successors, (16) [2021-10-13 00:26:19,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 139 transitions. [2021-10-13 00:26:19,227 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 139 transitions. Word has length 23 [2021-10-13 00:26:19,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:26:19,227 INFO L470 AbstractCegarLoop]: Abstraction has 102 states and 139 transitions. [2021-10-13 00:26:19,228 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 15 states have (on average 1.8666666666666667) internal successors, (28), 16 states have internal predecessors, (28), 5 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-10-13 00:26:19,228 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 139 transitions. [2021-10-13 00:26:19,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-13 00:26:19,229 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:26:19,229 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:26:19,241 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-13 00:26:19,430 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:26:19,430 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting entry_pointErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-10-13 00:26:19,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:26:19,431 INFO L82 PathProgramCache]: Analyzing trace with hash -1035029480, now seen corresponding path program 1 times [2021-10-13 00:26:19,431 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:26:19,431 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1426468399] [2021-10-13 00:26:19,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:26:19,431 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:26:19,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:26:19,432 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:26:19,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-13 00:26:19,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:26:19,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 00:26:19,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:26:19,776 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:26:19,776 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:26:19,930 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-13 00:26:19,930 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:26:19,930 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1426468399] [2021-10-13 00:26:19,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1426468399] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-13 00:26:19,931 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 00:26:19,931 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2021-10-13 00:26:19,931 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806160975] [2021-10-13 00:26:19,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 00:26:19,932 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:26:19,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 00:26:19,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:26:19,933 INFO L87 Difference]: Start difference. First operand 102 states and 139 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-13 00:26:20,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:26:20,000 INFO L93 Difference]: Finished difference Result 84 states and 109 transitions. [2021-10-13 00:26:20,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 00:26:20,001 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 23 [2021-10-13 00:26:20,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:26:20,002 INFO L225 Difference]: With dead ends: 84 [2021-10-13 00:26:20,003 INFO L226 Difference]: Without dead ends: 80 [2021-10-13 00:26:20,003 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 50.5ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:26:20,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2021-10-13 00:26:20,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2021-10-13 00:26:20,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 58 states have (on average 1.4827586206896552) internal successors, (86), 67 states have internal predecessors, (86), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) [2021-10-13 00:26:20,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 105 transitions. [2021-10-13 00:26:20,010 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 105 transitions. Word has length 23 [2021-10-13 00:26:20,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:26:20,011 INFO L470 AbstractCegarLoop]: Abstraction has 80 states and 105 transitions. [2021-10-13 00:26:20,011 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-13 00:26:20,011 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 105 transitions. [2021-10-13 00:26:20,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-13 00:26:20,012 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:26:20,012 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:26:20,026 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-13 00:26:20,223 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:26:20,224 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting entry_pointErr3REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-10-13 00:26:20,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:26:20,224 INFO L82 PathProgramCache]: Analyzing trace with hash -2015391035, now seen corresponding path program 1 times [2021-10-13 00:26:20,225 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:26:20,225 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2002147175] [2021-10-13 00:26:20,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:26:20,225 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:26:20,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:26:20,226 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:26:20,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-13 00:26:20,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:26:20,430 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 00:26:20,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:26:20,533 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-13 00:26:20,533 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:26:20,637 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-13 00:26:20,638 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:26:20,638 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2002147175] [2021-10-13 00:26:20,638 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2002147175] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:26:20,638 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:26:20,638 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-13 00:26:20,638 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199984581] [2021-10-13 00:26:20,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 00:26:20,639 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:26:20,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 00:26:20,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:26:20,639 INFO L87 Difference]: Start difference. First operand 80 states and 105 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-13 00:26:20,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:26:20,722 INFO L93 Difference]: Finished difference Result 95 states and 122 transitions. [2021-10-13 00:26:20,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 00:26:20,722 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 25 [2021-10-13 00:26:20,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:26:20,724 INFO L225 Difference]: With dead ends: 95 [2021-10-13 00:26:20,724 INFO L226 Difference]: Without dead ends: 95 [2021-10-13 00:26:20,724 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 44.0ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-13 00:26:20,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2021-10-13 00:26:20,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 84. [2021-10-13 00:26:20,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 62 states have (on average 1.435483870967742) internal successors, (89), 69 states have internal predecessors, (89), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (11), 9 states have call predecessors, (11), 7 states have call successors, (11) [2021-10-13 00:26:20,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 108 transitions. [2021-10-13 00:26:20,733 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 108 transitions. Word has length 25 [2021-10-13 00:26:20,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:26:20,733 INFO L470 AbstractCegarLoop]: Abstraction has 84 states and 108 transitions. [2021-10-13 00:26:20,734 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-13 00:26:20,734 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 108 transitions. [2021-10-13 00:26:20,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-13 00:26:20,735 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:26:20,735 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:26:20,756 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-13 00:26:20,947 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:26:20,947 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting entry_pointErr3REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-10-13 00:26:20,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:26:20,947 INFO L82 PathProgramCache]: Analyzing trace with hash -272580700, now seen corresponding path program 1 times [2021-10-13 00:26:20,947 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:26:20,948 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2146496481] [2021-10-13 00:26:20,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:26:20,948 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:26:20,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:26:20,948 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:26:20,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-13 00:26:21,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:26:21,176 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 00:26:21,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:26:21,278 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-13 00:26:21,278 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:26:21,406 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-13 00:26:21,406 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:26:21,406 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2146496481] [2021-10-13 00:26:21,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2146496481] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:26:21,407 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:26:21,407 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-13 00:26:21,407 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589757337] [2021-10-13 00:26:21,407 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 00:26:21,407 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:26:21,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 00:26:21,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-13 00:26:21,408 INFO L87 Difference]: Start difference. First operand 84 states and 108 transitions. Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-10-13 00:26:21,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:26:21,549 INFO L93 Difference]: Finished difference Result 83 states and 99 transitions. [2021-10-13 00:26:21,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 00:26:21,551 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 25 [2021-10-13 00:26:21,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:26:21,552 INFO L225 Difference]: With dead ends: 83 [2021-10-13 00:26:21,552 INFO L226 Difference]: Without dead ends: 83 [2021-10-13 00:26:21,553 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 62.1ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-13 00:26:21,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2021-10-13 00:26:21,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 76. [2021-10-13 00:26:21,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 54 states have (on average 1.3518518518518519) internal successors, (73), 61 states have internal predecessors, (73), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (11), 9 states have call predecessors, (11), 7 states have call successors, (11) [2021-10-13 00:26:21,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 92 transitions. [2021-10-13 00:26:21,559 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 92 transitions. Word has length 25 [2021-10-13 00:26:21,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:26:21,560 INFO L470 AbstractCegarLoop]: Abstraction has 76 states and 92 transitions. [2021-10-13 00:26:21,560 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-10-13 00:26:21,560 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 92 transitions. [2021-10-13 00:26:21,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-13 00:26:21,561 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:26:21,561 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:26:21,574 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-13 00:26:21,774 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:26:21,777 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting entry_pointErr8ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-10-13 00:26:21,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:26:21,779 INFO L82 PathProgramCache]: Analyzing trace with hash 139931782, now seen corresponding path program 1 times [2021-10-13 00:26:21,779 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:26:21,779 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1457929125] [2021-10-13 00:26:21,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:26:21,779 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:26:21,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:26:21,780 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:26:21,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-13 00:26:21,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:26:21,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-13 00:26:22,000 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:26:22,450 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:26:22,450 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:26:22,749 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-13 00:26:22,750 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:26:22,750 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1457929125] [2021-10-13 00:26:22,750 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1457929125] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 00:26:22,750 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:26:22,750 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4] total 9 [2021-10-13 00:26:22,750 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414337387] [2021-10-13 00:26:22,751 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-13 00:26:22,751 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:26:22,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-13 00:26:22,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-10-13 00:26:22,752 INFO L87 Difference]: Start difference. First operand 76 states and 92 transitions. Second operand has 10 states, 9 states have (on average 3.888888888888889) internal successors, (35), 8 states have internal predecessors, (35), 4 states have call successors, (9), 3 states have call predecessors, (9), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2021-10-13 00:26:23,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:26:23,123 INFO L93 Difference]: Finished difference Result 75 states and 90 transitions. [2021-10-13 00:26:23,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-13 00:26:23,125 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.888888888888889) internal successors, (35), 8 states have internal predecessors, (35), 4 states have call successors, (9), 3 states have call predecessors, (9), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) Word has length 26 [2021-10-13 00:26:23,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:26:23,126 INFO L225 Difference]: With dead ends: 75 [2021-10-13 00:26:23,126 INFO L226 Difference]: Without dead ends: 75 [2021-10-13 00:26:23,126 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 272.0ms TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-10-13 00:26:23,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2021-10-13 00:26:23,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2021-10-13 00:26:23,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 54 states have (on average 1.3148148148148149) internal successors, (71), 60 states have internal predecessors, (71), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (11), 9 states have call predecessors, (11), 7 states have call successors, (11) [2021-10-13 00:26:23,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 90 transitions. [2021-10-13 00:26:23,134 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 90 transitions. Word has length 26 [2021-10-13 00:26:23,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:26:23,134 INFO L470 AbstractCegarLoop]: Abstraction has 75 states and 90 transitions. [2021-10-13 00:26:23,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.888888888888889) internal successors, (35), 8 states have internal predecessors, (35), 4 states have call successors, (9), 3 states have call predecessors, (9), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2021-10-13 00:26:23,135 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 90 transitions. [2021-10-13 00:26:23,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-13 00:26:23,136 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:26:23,137 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:26:23,158 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-13 00:26:23,349 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:26:23,349 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-10-13 00:26:23,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:26:23,350 INFO L82 PathProgramCache]: Analyzing trace with hash -1318116199, now seen corresponding path program 1 times [2021-10-13 00:26:23,350 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:26:23,350 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1968918303] [2021-10-13 00:26:23,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:26:23,351 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:26:23,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:26:23,352 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:26:23,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-13 00:26:23,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:26:23,592 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-13 00:26:23,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:26:23,975 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-13 00:26:23,975 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:26:32,944 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:26:32,944 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1968918303] [2021-10-13 00:26:32,944 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(= (store |v_old(#valid)_BEFORE_CALL_9| v_entry_point_~array~0.base_33 (_ bv0 1)) v_prenex_3)=(= (select (store |v_old(#valid)_BEFORE_CALL_9| v_entry_point_~array~0.base_33 (_ bv0 1)) v_antiDerIndex_entry0_1) (select v_prenex_3 v_antiDerIndex_entry0_1))} [2021-10-13 00:26:32,945 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [674595180] [2021-10-13 00:26:32,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:26:32,945 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 00:26:32,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/cvc4 [2021-10-13 00:26:32,951 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 00:26:32,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2021-10-13 00:26:33,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:26:33,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-13 00:26:33,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:26:33,403 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-10-13 00:26:33,403 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 28 [2021-10-13 00:26:40,084 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-13 00:26:40,085 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:26:55,175 INFO L354 Elim1Store]: treesize reduction 16, result has 78.1 percent of original size [2021-10-13 00:26:55,175 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 68 treesize of output 115 [2021-10-13 00:26:56,440 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 [2021-10-13 00:27:00,770 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 00:27:00,770 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 65 treesize of output 105 [2021-10-13 00:27:01,679 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: No corresponding IProgramVar for v_prenex_5 [2021-10-13 00:27:01,681 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1615965391] [2021-10-13 00:27:01,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:27:01,681 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:27:01,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:27:01,683 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:27:01,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-10-13 00:27:02,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:27:02,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-13 00:27:02,021 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:27:02,261 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-13 00:27:02,261 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:27:14,016 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(= (store |v_old(#valid)_BEFORE_CALL_19| v_entry_point_~array~0.base_33 (_ bv0 1)) v_prenex_14)=(= (select (store |v_old(#valid)_BEFORE_CALL_19| v_entry_point_~array~0.base_33 (_ bv0 1)) v_antiDerIndex_entry0_5) (select v_prenex_14 v_antiDerIndex_entry0_5))} [2021-10-13 00:27:14,016 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:27:14,016 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-10-13 00:27:14,016 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-10-13 00:27:14,016 INFO L626 BasicCegarLoop]: Counterexample might be feasible [2021-10-13 00:27:14,023 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-10-13 00:27:14,024 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION [2021-10-13 00:27:14,024 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION [2021-10-13 00:27:14,024 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION [2021-10-13 00:27:14,025 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION [2021-10-13 00:27:14,025 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION [2021-10-13 00:27:14,025 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION [2021-10-13 00:27:14,025 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION [2021-10-13 00:27:14,025 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION [2021-10-13 00:27:14,025 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION [2021-10-13 00:27:14,025 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION [2021-10-13 00:27:14,025 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION [2021-10-13 00:27:14,025 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION [2021-10-13 00:27:14,026 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION [2021-10-13 00:27:14,026 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION [2021-10-13 00:27:14,026 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION [2021-10-13 00:27:14,026 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION [2021-10-13 00:27:14,026 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION [2021-10-13 00:27:14,027 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION [2021-10-13 00:27:14,027 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION [2021-10-13 00:27:14,027 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION [2021-10-13 00:27:14,027 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION [2021-10-13 00:27:14,027 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION [2021-10-13 00:27:14,027 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION [2021-10-13 00:27:14,028 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION [2021-10-13 00:27:14,028 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION [2021-10-13 00:27:14,028 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION [2021-10-13 00:27:14,028 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION [2021-10-13 00:27:14,028 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION [2021-10-13 00:27:14,029 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION [2021-10-13 00:27:14,029 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION [2021-10-13 00:27:14,029 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION [2021-10-13 00:27:14,029 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION [2021-10-13 00:27:14,029 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION [2021-10-13 00:27:14,029 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION [2021-10-13 00:27:14,030 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION [2021-10-13 00:27:14,030 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION [2021-10-13 00:27:14,030 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION [2021-10-13 00:27:14,030 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION [2021-10-13 00:27:14,030 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION [2021-10-13 00:27:14,030 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION [2021-10-13 00:27:14,031 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION [2021-10-13 00:27:14,031 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION [2021-10-13 00:27:14,031 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:27:14,031 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:27:14,031 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:27:14,032 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:27:14,032 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:27:14,032 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:27:14,032 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION [2021-10-13 00:27:14,032 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION [2021-10-13 00:27:14,033 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION [2021-10-13 00:27:14,033 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION [2021-10-13 00:27:14,033 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION [2021-10-13 00:27:14,033 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION [2021-10-13 00:27:14,033 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION [2021-10-13 00:27:14,033 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION [2021-10-13 00:27:14,034 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:27:14,034 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:27:14,034 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:27:14,034 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:27:14,034 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:27:14,035 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:27:14,035 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION [2021-10-13 00:27:14,035 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION [2021-10-13 00:27:14,035 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION [2021-10-13 00:27:14,035 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION [2021-10-13 00:27:14,035 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION [2021-10-13 00:27:14,036 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION [2021-10-13 00:27:14,036 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION [2021-10-13 00:27:14,036 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION [2021-10-13 00:27:14,036 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr0REQUIRES_VIOLATION [2021-10-13 00:27:14,036 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr1REQUIRES_VIOLATION [2021-10-13 00:27:14,036 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr2REQUIRES_VIOLATION [2021-10-13 00:27:14,037 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr3REQUIRES_VIOLATION [2021-10-13 00:27:14,037 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:27:14,037 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:27:14,037 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:27:14,038 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:27:14,039 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr8ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:27:14,039 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr9ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:27:14,045 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/cvc4 --incremental --print-success --lang smt (12)] Ended with exit code 0 [2021-10-13 00:27:14,250 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-13 00:27:14,464 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-10-13 00:27:14,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/cvc4 --incremental --print-success --lang smt,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:27:14,649 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 00:27:14,652 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-10-13 00:27:14,660 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 12:27:14 BoogieIcfgContainer [2021-10-13 00:27:14,660 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 00:27:14,661 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:27:14,661 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:27:14,661 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:27:14,662 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:22:15" (3/4) ... [2021-10-13 00:27:14,665 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-13 00:27:14,665 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:27:14,666 INFO L168 Benchmark]: Toolchain (without parser) took 301779.70 ms. Allocated memory was 62.9 MB in the beginning and 107.0 MB in the end (delta: 44.0 MB). Free memory was 41.7 MB in the beginning and 50.5 MB in the end (delta: -8.9 MB). Peak memory consumption was 36.8 MB. Max. memory is 16.1 GB. [2021-10-13 00:27:14,667 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 62.9 MB. Free memory is still 45.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:27:14,667 INFO L168 Benchmark]: CACSL2BoogieTranslator took 817.23 ms. Allocated memory is still 62.9 MB. Free memory was 41.4 MB in the beginning and 30.2 MB in the end (delta: 11.3 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-13 00:27:14,668 INFO L168 Benchmark]: Boogie Preprocessor took 139.38 ms. Allocated memory was 62.9 MB in the beginning and 86.0 MB in the end (delta: 23.1 MB). Free memory was 29.9 MB in the beginning and 66.1 MB in the end (delta: -36.1 MB). Peak memory consumption was 7.2 MB. Max. memory is 16.1 GB. [2021-10-13 00:27:14,668 INFO L168 Benchmark]: RCFGBuilder took 1505.30 ms. Allocated memory is still 86.0 MB. Free memory was 66.1 MB in the beginning and 43.0 MB in the end (delta: 23.1 MB). Peak memory consumption was 28.5 MB. Max. memory is 16.1 GB. [2021-10-13 00:27:14,668 INFO L168 Benchmark]: TraceAbstraction took 299307.64 ms. Allocated memory was 86.0 MB in the beginning and 107.0 MB in the end (delta: 21.0 MB). Free memory was 42.6 MB in the beginning and 50.5 MB in the end (delta: -7.9 MB). Peak memory consumption was 13.7 MB. Max. memory is 16.1 GB. [2021-10-13 00:27:14,669 INFO L168 Benchmark]: Witness Printer took 4.62 ms. Allocated memory is still 107.0 MB. Free memory is still 50.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:27:14,671 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 62.9 MB. Free memory is still 45.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 817.23 ms. Allocated memory is still 62.9 MB. Free memory was 41.4 MB in the beginning and 30.2 MB in the end (delta: 11.3 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 139.38 ms. Allocated memory was 62.9 MB in the beginning and 86.0 MB in the end (delta: 23.1 MB). Free memory was 29.9 MB in the beginning and 66.1 MB in the end (delta: -36.1 MB). Peak memory consumption was 7.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1505.30 ms. Allocated memory is still 86.0 MB. Free memory was 66.1 MB in the beginning and 43.0 MB in the end (delta: 23.1 MB). Peak memory consumption was 28.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 299307.64 ms. Allocated memory was 86.0 MB in the beginning and 107.0 MB in the end (delta: 21.0 MB). Free memory was 42.6 MB in the beginning and 50.5 MB in the end (delta: -7.9 MB). Peak memory consumption was 13.7 MB. Max. memory is 16.1 GB. * Witness Printer took 4.62 ms. Allocated memory is still 107.0 MB. Free memory is still 50.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 780]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: unable to decide satisfiability of path constraint, overapproximation of memtrack at line 780. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L781] CALL entry_point() [L761] int len = 10; [L762] CALL, EXPR ldv_malloc(sizeof(struct A18*)*len) [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L762] RET, EXPR ldv_malloc(sizeof(struct A18*)*len) [L762] struct A18 **array = (struct A18 **)ldv_malloc(sizeof(struct A18*)*len); [L763] struct A18 *p; [L764] int i=0; [L765] int j; [L766] COND FALSE !(!array) [L767] COND TRUE i=0) [L777] free(array) [L777] free(array) [L777] free(array) [L781] RET entry_point() - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 770]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 770]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 775]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 775]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 775]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 775]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 775]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 777]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 777]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 777]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 47 procedures, 357 locations, 81 error locations. Started 1 CEGAR loops. OverallTime: 299215.8ms, OverallIterations: 10, TraceHistogramMax: 2, EmptinessCheckTime: 47.8ms, AutomataDifference: 216254.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 15.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 458 SDtfs, 929 SDslu, 1362 SDs, 0 SdLazy, 1166 SolverSat, 145 SolverUnsat, 87 SolverUnknown, 0 SolverNotchecked, 183059.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 410 GetRequests, 331 SyntacticMatches, 7 SemanticMatches, 72 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 50334.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=117occurred in iteration=0, InterpolantAutomatonStates: 71, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 142.1ms AutomataMinimizationTime, 9 MinimizatonAttempts, 367 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 82.2ms SsaConstructionTime, 246.1ms SatisfiabilityAnalysisTime, 27688.4ms InterpolantComputationTime, 197 NumberOfCodeBlocks, 197 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 376 ConstructedInterpolants, 23 QuantifiedInterpolants, 1792 SizeOfPredicates, 12 NumberOfNonLiveVariables, 816 ConjunctsInSsa, 58 ConjunctsInUnsatCore, 18 InterpolantComputations, 11 PerfectInterpolantSequences, 32/48 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-13 00:27:14,783 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7bcd45c-41cd-4066-b9ee-988a119973c9/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...