./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety-realloc/array-realloc-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_6bf97402-1686-44ef-9836-5c5ae1b12b07/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_6bf97402-1686-44ef-9836-5c5ae1b12b07/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6bf97402-1686-44ef-9836-5c5ae1b12b07/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6bf97402-1686-44ef-9836-5c5ae1b12b07/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety-realloc/array-realloc-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_6bf97402-1686-44ef-9836-5c5ae1b12b07/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6bf97402-1686-44ef-9836-5c5ae1b12b07/bin/uautomizer --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 ef75293aeb91e37969e4557310245e0c38a479cd .................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_6bf97402-1686-44ef-9836-5c5ae1b12b07/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_6bf97402-1686-44ef-9836-5c5ae1b12b07/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6bf97402-1686-44ef-9836-5c5ae1b12b07/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6bf97402-1686-44ef-9836-5c5ae1b12b07/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety-realloc/array-realloc-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_6bf97402-1686-44ef-9836-5c5ae1b12b07/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6bf97402-1686-44ef-9836-5c5ae1b12b07/bin/uautomizer --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 ef75293aeb91e37969e4557310245e0c38a479cd .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-free) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:08:57,336 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:08:57,339 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:08:57,395 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:08:57,423 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:08:57,425 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:08:57,428 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:08:57,431 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:08:57,434 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:08:57,435 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:08:57,439 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:08:57,442 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:08:57,443 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:08:57,445 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:08:57,447 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:08:57,449 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:08:57,450 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:08:57,452 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:08:57,455 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:08:57,458 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:08:57,461 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:08:57,467 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:08:57,469 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:08:57,472 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:08:57,479 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:08:57,480 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:08:57,481 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:08:57,487 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:08:57,491 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:08:57,493 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:08:57,493 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:08:57,495 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:08:57,498 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:08:57,499 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:08:57,501 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:08:57,501 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:08:57,503 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:08:57,503 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:08:57,503 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:08:57,505 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:08:57,506 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:08:57,510 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6bf97402-1686-44ef-9836-5c5ae1b12b07/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-11-28 03:08:57,567 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:08:57,569 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:08:57,571 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:08:57,572 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:08:57,572 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:08:57,572 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:08:57,573 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:08:57,573 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 03:08:57,573 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:08:57,573 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:08:57,575 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:08:57,575 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-28 03:08:57,575 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-28 03:08:57,576 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-28 03:08:57,576 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:08:57,576 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 03:08:57,577 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:08:57,577 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:08:57,577 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:08:57,578 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:08:57,578 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:08:57,578 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:08:57,578 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:08:57,579 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:08:57,579 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:08:57,579 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:08:57,580 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:08:57,580 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:08:57,580 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-vcloud-master/worker/run_dir_6bf97402-1686-44ef-9836-5c5ae1b12b07/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_6bf97402-1686-44ef-9836-5c5ae1b12b07/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ef75293aeb91e37969e4557310245e0c38a479cd [2020-11-28 03:08:57,897 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:08:57,953 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:08:57,959 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:08:57,961 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:08:57,961 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:08:57,963 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6bf97402-1686-44ef-9836-5c5ae1b12b07/bin/uautomizer/../../sv-benchmarks/c/array-memsafety-realloc/array-realloc-1.i [2020-11-28 03:08:58,067 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6bf97402-1686-44ef-9836-5c5ae1b12b07/bin/uautomizer/data/7fcfac8d7/6f4e6bcdc27d45edba7a314a4032f28e/FLAGdb606d219 [2020-11-28 03:08:58,745 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:08:58,746 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6bf97402-1686-44ef-9836-5c5ae1b12b07/sv-benchmarks/c/array-memsafety-realloc/array-realloc-1.i [2020-11-28 03:08:58,763 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6bf97402-1686-44ef-9836-5c5ae1b12b07/bin/uautomizer/data/7fcfac8d7/6f4e6bcdc27d45edba7a314a4032f28e/FLAGdb606d219 [2020-11-28 03:08:59,028 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6bf97402-1686-44ef-9836-5c5ae1b12b07/bin/uautomizer/data/7fcfac8d7/6f4e6bcdc27d45edba7a314a4032f28e [2020-11-28 03:08:59,031 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:08:59,033 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-28 03:08:59,035 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:08:59,036 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:08:59,040 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:08:59,042 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:08:59" (1/1) ... [2020-11-28 03:08:59,044 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34083e19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:59, skipping insertion in model container [2020-11-28 03:08:59,044 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:08:59" (1/1) ... [2020-11-28 03:08:59,053 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:08:59,098 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:08:59,551 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:08:59,576 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) [2020-11-28 03:08:59,577 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6a92fb90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:59, skipping insertion in model container [2020-11-28 03:08:59,578 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:08:59,578 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2020-11-28 03:08:59,583 INFO L168 Benchmark]: Toolchain (without parser) took 547.13 ms. Allocated memory was 81.8 MB in the beginning and 100.7 MB in the end (delta: 18.9 MB). Free memory was 52.9 MB in the beginning and 78.5 MB in the end (delta: -25.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:08:59,585 INFO L168 Benchmark]: CDTParser took 0.51 ms. Allocated memory is still 81.8 MB. Free memory was 39.6 MB in the beginning and 39.5 MB in the end (delta: 34.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:08:59,588 INFO L168 Benchmark]: CACSL2BoogieTranslator took 542.99 ms. Allocated memory was 81.8 MB in the beginning and 100.7 MB in the end (delta: 18.9 MB). Free memory was 52.5 MB in the beginning and 78.5 MB in the end (delta: -26.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:08:59,592 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51 ms. Allocated memory is still 81.8 MB. Free memory was 39.6 MB in the beginning and 39.5 MB in the end (delta: 34.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 542.99 ms. Allocated memory was 81.8 MB in the beginning and 100.7 MB in the end (delta: 18.9 MB). Free memory was 52.5 MB in the beginning and 78.5 MB in the end (delta: -26.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 515]: 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 0.2.0-a4ecdab [2020-11-28 03:09:02,493 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:09:02,496 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:09:02,537 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:09:02,538 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:09:02,540 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:09:02,542 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:09:02,546 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:09:02,548 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:09:02,550 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:09:02,552 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:09:02,554 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:09:02,554 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:09:02,556 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:09:02,558 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:09:02,560 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:09:02,562 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:09:02,567 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:09:02,570 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:09:02,577 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:09:02,586 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:09:02,589 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:09:02,595 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:09:02,597 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:09:02,603 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:09:02,607 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:09:02,608 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:09:02,609 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:09:02,611 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:09:02,613 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:09:02,614 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:09:02,615 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:09:02,618 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:09:02,619 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:09:02,621 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:09:02,622 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:09:02,624 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:09:02,624 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:09:02,624 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:09:02,627 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:09:02,628 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:09:02,629 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6bf97402-1686-44ef-9836-5c5ae1b12b07/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2020-11-28 03:09:02,698 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:09:02,698 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:09:02,702 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:09:02,703 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:09:02,703 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:09:02,703 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:09:02,704 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:09:02,704 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 03:09:02,704 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:09:02,704 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:09:02,706 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:09:02,706 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-28 03:09:02,707 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-28 03:09:02,707 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-28 03:09:02,707 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:09:02,708 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 03:09:02,708 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-28 03:09:02,708 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-28 03:09:02,708 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:09:02,709 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:09:02,709 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:09:02,709 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:09:02,710 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:09:02,710 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:09:02,710 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:09:02,711 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:09:02,711 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:09:02,711 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-28 03:09:02,712 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-28 03:09:02,712 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:09:02,712 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 03:09:02,712 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-vcloud-master/worker/run_dir_6bf97402-1686-44ef-9836-5c5ae1b12b07/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_6bf97402-1686-44ef-9836-5c5ae1b12b07/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ef75293aeb91e37969e4557310245e0c38a479cd [2020-11-28 03:09:03,220 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:09:03,250 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:09:03,253 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:09:03,255 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:09:03,256 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:09:03,257 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6bf97402-1686-44ef-9836-5c5ae1b12b07/bin/uautomizer/../../sv-benchmarks/c/array-memsafety-realloc/array-realloc-1.i [2020-11-28 03:09:03,335 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6bf97402-1686-44ef-9836-5c5ae1b12b07/bin/uautomizer/data/959514d69/856c0e077d3f4a328d130ca6a4f37d83/FLAG3541fa09b [2020-11-28 03:09:04,098 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:09:04,099 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6bf97402-1686-44ef-9836-5c5ae1b12b07/sv-benchmarks/c/array-memsafety-realloc/array-realloc-1.i [2020-11-28 03:09:04,117 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6bf97402-1686-44ef-9836-5c5ae1b12b07/bin/uautomizer/data/959514d69/856c0e077d3f4a328d130ca6a4f37d83/FLAG3541fa09b [2020-11-28 03:09:04,346 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6bf97402-1686-44ef-9836-5c5ae1b12b07/bin/uautomizer/data/959514d69/856c0e077d3f4a328d130ca6a4f37d83 [2020-11-28 03:09:04,352 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:09:04,354 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-28 03:09:04,356 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:09:04,356 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:09:04,366 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:09:04,368 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:09:04" (1/1) ... [2020-11-28 03:09:04,371 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31f2128d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:04, skipping insertion in model container [2020-11-28 03:09:04,372 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:09:04" (1/1) ... [2020-11-28 03:09:04,387 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:09:04,470 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:09:04,873 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:09:04,922 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-11-28 03:09:04,966 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:09:05,031 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:09:05,039 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:09:05,077 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:09:05,168 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:09:05,171 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:05 WrapperNode [2020-11-28 03:09:05,172 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:09:05,173 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:09:05,173 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:09:05,173 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:09:05,184 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:05" (1/1) ... [2020-11-28 03:09:05,184 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:05" (1/1) ... [2020-11-28 03:09:05,206 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:05" (1/1) ... [2020-11-28 03:09:05,206 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:05" (1/1) ... [2020-11-28 03:09:05,237 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:05" (1/1) ... [2020-11-28 03:09:05,243 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:05" (1/1) ... [2020-11-28 03:09:05,248 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:05" (1/1) ... [2020-11-28 03:09:05,258 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:09:05,266 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:09:05,266 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:09:05,266 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:09:05,268 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:05" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6bf97402-1686-44ef-9836-5c5ae1b12b07/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:09:05,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-28 03:09:05,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:09:05,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2020-11-28 03:09:05,352 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-11-28 03:09:05,353 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-11-28 03:09:05,353 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-11-28 03:09:05,353 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-11-28 03:09:05,353 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-11-28 03:09:05,353 INFO L138 BoogieDeclarations]: Found implementation of procedure expandArray [2020-11-28 03:09:05,354 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-28 03:09:05,355 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc [2020-11-28 03:09:05,355 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-11-28 03:09:05,355 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-11-28 03:09:05,355 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-11-28 03:09:05,355 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-11-28 03:09:05,355 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-11-28 03:09:05,356 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-11-28 03:09:05,356 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-11-28 03:09:05,356 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-11-28 03:09:05,356 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-11-28 03:09:05,356 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-11-28 03:09:05,357 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-11-28 03:09:05,357 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-11-28 03:09:05,357 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-11-28 03:09:05,357 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-11-28 03:09:05,357 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-11-28 03:09:05,358 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-11-28 03:09:05,358 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-11-28 03:09:05,358 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-11-28 03:09:05,358 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-11-28 03:09:05,358 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-11-28 03:09:05,359 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-11-28 03:09:05,359 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-11-28 03:09:05,359 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-11-28 03:09:05,359 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-11-28 03:09:05,359 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-11-28 03:09:05,359 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-11-28 03:09:05,360 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-11-28 03:09:05,360 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-11-28 03:09:05,360 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-11-28 03:09:05,360 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-11-28 03:09:05,360 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-11-28 03:09:05,361 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-11-28 03:09:05,361 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-11-28 03:09:05,361 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-11-28 03:09:05,361 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-11-28 03:09:05,361 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-11-28 03:09:05,362 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-11-28 03:09:05,362 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-11-28 03:09:05,362 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-11-28 03:09:05,362 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-11-28 03:09:05,362 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-11-28 03:09:05,363 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-11-28 03:09:05,363 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-11-28 03:09:05,363 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-11-28 03:09:05,363 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-11-28 03:09:05,363 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-11-28 03:09:05,364 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-11-28 03:09:05,364 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-11-28 03:09:05,364 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-11-28 03:09:05,364 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-11-28 03:09:05,364 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-11-28 03:09:05,365 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-11-28 03:09:05,365 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-11-28 03:09:05,365 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-11-28 03:09:05,365 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-11-28 03:09:05,365 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-28 03:09:05,366 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-11-28 03:09:05,366 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-11-28 03:09:05,366 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-28 03:09:05,366 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-11-28 03:09:05,366 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-11-28 03:09:05,367 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-11-28 03:09:05,367 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-11-28 03:09:05,367 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-28 03:09:05,367 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-11-28 03:09:05,367 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-11-28 03:09:05,368 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-11-28 03:09:05,368 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-11-28 03:09:05,368 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-11-28 03:09:05,368 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-11-28 03:09:05,368 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-11-28 03:09:05,368 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-11-28 03:09:05,380 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-11-28 03:09:05,380 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-11-28 03:09:05,380 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-11-28 03:09:05,381 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-11-28 03:09:05,381 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-11-28 03:09:05,381 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-11-28 03:09:05,381 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-11-28 03:09:05,381 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-11-28 03:09:05,381 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-11-28 03:09:05,381 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-11-28 03:09:05,381 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-11-28 03:09:05,381 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-11-28 03:09:05,381 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-11-28 03:09:05,381 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-11-28 03:09:05,382 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-11-28 03:09:05,382 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-11-28 03:09:05,382 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-11-28 03:09:05,382 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-11-28 03:09:05,382 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-11-28 03:09:05,382 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-11-28 03:09:05,382 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-11-28 03:09:05,382 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-11-28 03:09:05,382 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-11-28 03:09:05,382 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-11-28 03:09:05,383 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-11-28 03:09:05,383 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-11-28 03:09:05,383 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-11-28 03:09:05,384 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-11-28 03:09:05,385 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-11-28 03:09:05,385 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-11-28 03:09:05,385 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-11-28 03:09:05,385 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-11-28 03:09:05,385 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-11-28 03:09:05,385 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-11-28 03:09:05,385 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-11-28 03:09:05,385 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-28 03:09:05,385 INFO L130 BoogieDeclarations]: Found specification of procedure expandArray [2020-11-28 03:09:05,386 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc [2020-11-28 03:09:05,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-28 03:09:05,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 03:09:05,386 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-28 03:09:05,386 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-28 03:09:05,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-28 03:09:05,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:09:05,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2020-11-28 03:09:05,386 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-28 03:09:06,282 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:09:06,282 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-11-28 03:09:06,285 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:09:06 BoogieIcfgContainer [2020-11-28 03:09:06,286 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:09:06,290 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:09:06,291 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:09:06,296 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:09:06,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:09:04" (1/3) ... [2020-11-28 03:09:06,298 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fd0bab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:09:06, skipping insertion in model container [2020-11-28 03:09:06,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:05" (2/3) ... [2020-11-28 03:09:06,306 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fd0bab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:09:06, skipping insertion in model container [2020-11-28 03:09:06,306 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:09:06" (3/3) ... [2020-11-28 03:09:06,308 INFO L111 eAbstractionObserver]: Analyzing ICFG array-realloc-1.i [2020-11-28 03:09:06,321 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:09:06,328 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 9 error locations. [2020-11-28 03:09:06,341 INFO L253 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2020-11-28 03:09:06,377 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:09:06,377 INFO L378 AbstractCegarLoop]: Hoare is false [2020-11-28 03:09:06,377 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:09:06,378 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:09:06,378 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:09:06,378 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:09:06,378 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:09:06,378 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:09:06,398 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2020-11-28 03:09:06,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-28 03:09:06,407 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:09:06,416 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:09:06,416 INFO L429 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr3ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr4ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr3ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr2ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2020-11-28 03:09:06,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:09:06,422 INFO L82 PathProgramCache]: Analyzing trace with hash 1774917903, now seen corresponding path program 1 times [2020-11-28 03:09:06,441 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:09:06,442 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1184706272] [2020-11-28 03:09:06,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6bf97402-1686-44ef-9836-5c5ae1b12b07/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-28 03:09:06,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:06,674 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:09:06,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:09:06,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:09:06,720 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 03:09:06,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:09:06,738 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1184706272] [2020-11-28 03:09:06,739 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:09:06,739 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-28 03:09:06,741 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152278908] [2020-11-28 03:09:06,748 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:09:06,748 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-28 03:09:06,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:09:06,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:09:06,771 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 3 states. [2020-11-28 03:09:06,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:09:06,916 INFO L93 Difference]: Finished difference Result 55 states and 62 transitions. [2020-11-28 03:09:06,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:09:06,919 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-11-28 03:09:06,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:09:06,934 INFO L225 Difference]: With dead ends: 55 [2020-11-28 03:09:06,935 INFO L226 Difference]: Without dead ends: 51 [2020-11-28 03:09:06,937 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:09:06,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-11-28 03:09:07,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 39. [2020-11-28 03:09:07,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-11-28 03:09:07,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 42 transitions. [2020-11-28 03:09:07,005 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 42 transitions. Word has length 8 [2020-11-28 03:09:07,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:09:07,006 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 42 transitions. [2020-11-28 03:09:07,006 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:09:07,006 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 42 transitions. [2020-11-28 03:09:07,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-28 03:09:07,007 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:09:07,007 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:09:07,231 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-28 03:09:07,231 INFO L429 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr3ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr4ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr3ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr2ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2020-11-28 03:09:07,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:09:07,235 INFO L82 PathProgramCache]: Analyzing trace with hash -812119182, now seen corresponding path program 1 times [2020-11-28 03:09:07,235 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:09:07,236 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2079732053] [2020-11-28 03:09:07,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6bf97402-1686-44ef-9836-5c5ae1b12b07/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-28 03:09:07,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:07,394 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-28 03:09:07,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:09:07,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:09:07,413 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 03:09:07,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:09:07,422 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2079732053] [2020-11-28 03:09:07,422 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:09:07,422 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-11-28 03:09:07,422 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964843642] [2020-11-28 03:09:07,424 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:09:07,424 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-28 03:09:07,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:09:07,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:09:07,425 INFO L87 Difference]: Start difference. First operand 39 states and 42 transitions. Second operand 3 states. [2020-11-28 03:09:07,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:09:07,444 INFO L93 Difference]: Finished difference Result 39 states and 41 transitions. [2020-11-28 03:09:07,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:09:07,445 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-11-28 03:09:07,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:09:07,446 INFO L225 Difference]: With dead ends: 39 [2020-11-28 03:09:07,447 INFO L226 Difference]: Without dead ends: 39 [2020-11-28 03:09:07,447 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:09:07,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-11-28 03:09:07,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-11-28 03:09:07,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-11-28 03:09:07,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 41 transitions. [2020-11-28 03:09:07,454 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 41 transitions. Word has length 9 [2020-11-28 03:09:07,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:09:07,454 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 41 transitions. [2020-11-28 03:09:07,454 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:09:07,454 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 41 transitions. [2020-11-28 03:09:07,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-28 03:09:07,455 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:09:07,455 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:09:07,669 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-28 03:09:07,670 INFO L429 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr3ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr4ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr3ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr2ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2020-11-28 03:09:07,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:09:07,671 INFO L82 PathProgramCache]: Analyzing trace with hash -386852574, now seen corresponding path program 1 times [2020-11-28 03:09:07,675 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:09:07,676 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [109308098] [2020-11-28 03:09:07,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6bf97402-1686-44ef-9836-5c5ae1b12b07/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-28 03:09:07,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:07,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-28 03:09:07,873 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:09:07,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:09:07,895 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 03:09:07,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:09:07,908 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [109308098] [2020-11-28 03:09:07,909 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:09:07,909 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-11-28 03:09:07,909 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44396867] [2020-11-28 03:09:07,910 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:09:07,910 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-28 03:09:07,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:09:07,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:09:07,911 INFO L87 Difference]: Start difference. First operand 39 states and 41 transitions. Second operand 3 states. [2020-11-28 03:09:07,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:09:07,980 INFO L93 Difference]: Finished difference Result 46 states and 50 transitions. [2020-11-28 03:09:07,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:09:07,982 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-11-28 03:09:07,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:09:07,983 INFO L225 Difference]: With dead ends: 46 [2020-11-28 03:09:07,984 INFO L226 Difference]: Without dead ends: 46 [2020-11-28 03:09:07,984 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:09:07,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-11-28 03:09:07,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 41. [2020-11-28 03:09:07,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-11-28 03:09:08,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 44 transitions. [2020-11-28 03:09:08,015 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 44 transitions. Word has length 13 [2020-11-28 03:09:08,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:09:08,015 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 44 transitions. [2020-11-28 03:09:08,015 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:09:08,016 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 44 transitions. [2020-11-28 03:09:08,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-28 03:09:08,016 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:09:08,017 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:09:08,232 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-28 03:09:08,232 INFO L429 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr3ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr4ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr3ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr2ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2020-11-28 03:09:08,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:09:08,233 INFO L82 PathProgramCache]: Analyzing trace with hash -171591004, now seen corresponding path program 1 times [2020-11-28 03:09:08,233 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:09:08,234 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [360643858] [2020-11-28 03:09:08,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6bf97402-1686-44ef-9836-5c5ae1b12b07/bin/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-11-28 03:09:08,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:08,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-28 03:09:08,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:09:08,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:09:08,536 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 03:09:08,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:09:08,592 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [360643858] [2020-11-28 03:09:08,592 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:09:08,593 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2020-11-28 03:09:08,593 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107497333] [2020-11-28 03:09:08,593 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 03:09:08,594 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-28 03:09:08,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 03:09:08,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:09:08,595 INFO L87 Difference]: Start difference. First operand 41 states and 44 transitions. Second operand 6 states. [2020-11-28 03:09:08,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:09:08,758 INFO L93 Difference]: Finished difference Result 52 states and 56 transitions. [2020-11-28 03:09:08,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 03:09:08,762 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-11-28 03:09:08,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:09:08,764 INFO L225 Difference]: With dead ends: 52 [2020-11-28 03:09:08,764 INFO L226 Difference]: Without dead ends: 52 [2020-11-28 03:09:08,764 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-11-28 03:09:08,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-11-28 03:09:08,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 44. [2020-11-28 03:09:08,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-11-28 03:09:08,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 48 transitions. [2020-11-28 03:09:08,774 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 48 transitions. Word has length 17 [2020-11-28 03:09:08,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:09:08,775 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 48 transitions. [2020-11-28 03:09:08,778 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 03:09:08,779 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions. [2020-11-28 03:09:08,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-28 03:09:08,781 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:09:08,781 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:09:08,999 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-28 03:09:09,003 INFO L429 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr3ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr4ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr3ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr2ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2020-11-28 03:09:09,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:09:09,004 INFO L82 PathProgramCache]: Analyzing trace with hash -170667483, now seen corresponding path program 1 times [2020-11-28 03:09:09,004 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:09:09,005 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2072781203] [2020-11-28 03:09:09,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6bf97402-1686-44ef-9836-5c5ae1b12b07/bin/uautomizer/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-11-28 03:09:09,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:09,203 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-28 03:09:09,205 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:09:09,272 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 03:09:09,272 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 25 [2020-11-28 03:09:09,273 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-28 03:09:09,304 INFO L625 ElimStorePlain]: treesize reduction 10, result has 60.0 percent of original size [2020-11-28 03:09:09,308 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-28 03:09:09,309 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:9, output treesize:5 [2020-11-28 03:09:09,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:09:09,333 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 03:09:09,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:09:09,405 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2072781203] [2020-11-28 03:09:09,406 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:09:09,406 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2020-11-28 03:09:09,406 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360007740] [2020-11-28 03:09:09,406 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:09:09,406 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-28 03:09:09,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:09:09,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:09:09,407 INFO L87 Difference]: Start difference. First operand 44 states and 48 transitions. Second operand 5 states. [2020-11-28 03:09:09,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:09:09,569 INFO L93 Difference]: Finished difference Result 45 states and 49 transitions. [2020-11-28 03:09:09,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 03:09:09,572 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-11-28 03:09:09,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:09:09,573 INFO L225 Difference]: With dead ends: 45 [2020-11-28 03:09:09,573 INFO L226 Difference]: Without dead ends: 45 [2020-11-28 03:09:09,574 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:09:09,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-11-28 03:09:09,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 42. [2020-11-28 03:09:09,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-11-28 03:09:09,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2020-11-28 03:09:09,580 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 17 [2020-11-28 03:09:09,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:09:09,581 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2020-11-28 03:09:09,581 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:09:09,581 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2020-11-28 03:09:09,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-28 03:09:09,582 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:09:09,582 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:09:09,782 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-11-28 03:09:09,783 INFO L429 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr3ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr4ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr3ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr2ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2020-11-28 03:09:09,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:09:09,783 INFO L82 PathProgramCache]: Analyzing trace with hash -170667482, now seen corresponding path program 1 times [2020-11-28 03:09:09,784 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:09:09,784 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [719932225] [2020-11-28 03:09:09,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6bf97402-1686-44ef-9836-5c5ae1b12b07/bin/uautomizer/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-11-28 03:09:09,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:09,996 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-28 03:09:09,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:09:10,032 INFO L384 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 [2020-11-28 03:09:10,032 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-28 03:09:10,045 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 03:09:10,045 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-28 03:09:10,045 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:14 [2020-11-28 03:09:10,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:09:10,133 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 03:09:10,305 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 13 [2020-11-28 03:09:10,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:09:10,822 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [719932225] [2020-11-28 03:09:10,822 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:09:10,822 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2020-11-28 03:09:10,823 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632675779] [2020-11-28 03:09:10,823 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-28 03:09:10,823 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-28 03:09:10,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-28 03:09:10,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2020-11-28 03:09:10,824 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand 12 states. [2020-11-28 03:09:11,572 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 23 [2020-11-28 03:09:12,204 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 21 [2020-11-28 03:09:12,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:09:12,753 INFO L93 Difference]: Finished difference Result 121 states and 129 transitions. [2020-11-28 03:09:12,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-11-28 03:09:12,754 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 17 [2020-11-28 03:09:12,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:09:12,756 INFO L225 Difference]: With dead ends: 121 [2020-11-28 03:09:12,756 INFO L226 Difference]: Without dead ends: 119 [2020-11-28 03:09:12,757 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2020-11-28 03:09:12,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-11-28 03:09:12,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 63. [2020-11-28 03:09:12,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-11-28 03:09:12,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 71 transitions. [2020-11-28 03:09:12,779 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 71 transitions. Word has length 17 [2020-11-28 03:09:12,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:09:12,780 INFO L481 AbstractCegarLoop]: Abstraction has 63 states and 71 transitions. [2020-11-28 03:09:12,780 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-28 03:09:12,780 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 71 transitions. [2020-11-28 03:09:12,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-28 03:09:12,781 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:09:12,781 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:09:12,983 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-11-28 03:09:12,984 INFO L429 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr3ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr4ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr3ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr2ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2020-11-28 03:09:12,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:09:12,984 INFO L82 PathProgramCache]: Analyzing trace with hash 2028589773, now seen corresponding path program 1 times [2020-11-28 03:09:12,985 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:09:12,985 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1790916817] [2020-11-28 03:09:12,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6bf97402-1686-44ef-9836-5c5ae1b12b07/bin/uautomizer/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2020-11-28 03:09:13,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:13,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-28 03:09:13,161 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:09:13,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:09:13,169 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 03:09:13,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:09:13,197 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1790916817] [2020-11-28 03:09:13,197 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:09:13,197 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-28 03:09:13,197 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992540464] [2020-11-28 03:09:13,198 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:09:13,198 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-28 03:09:13,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:09:13,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:09:13,198 INFO L87 Difference]: Start difference. First operand 63 states and 71 transitions. Second operand 3 states. [2020-11-28 03:09:13,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:09:13,206 INFO L93 Difference]: Finished difference Result 62 states and 70 transitions. [2020-11-28 03:09:13,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:09:13,211 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-11-28 03:09:13,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:09:13,212 INFO L225 Difference]: With dead ends: 62 [2020-11-28 03:09:13,212 INFO L226 Difference]: Without dead ends: 62 [2020-11-28 03:09:13,213 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:09:13,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-11-28 03:09:13,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2020-11-28 03:09:13,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-11-28 03:09:13,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 70 transitions. [2020-11-28 03:09:13,241 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 70 transitions. Word has length 17 [2020-11-28 03:09:13,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:09:13,241 INFO L481 AbstractCegarLoop]: Abstraction has 62 states and 70 transitions. [2020-11-28 03:09:13,241 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:09:13,241 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 70 transitions. [2020-11-28 03:09:13,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-28 03:09:13,242 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:09:13,242 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:09:13,456 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-11-28 03:09:13,459 INFO L429 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr3ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr4ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr3ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr2ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2020-11-28 03:09:13,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:09:13,460 INFO L82 PathProgramCache]: Analyzing trace with hash -1538226398, now seen corresponding path program 1 times [2020-11-28 03:09:13,460 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:09:13,460 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1361935590] [2020-11-28 03:09:13,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6bf97402-1686-44ef-9836-5c5ae1b12b07/bin/uautomizer/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2020-11-28 03:09:13,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:13,649 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-28 03:09:13,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:09:13,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:09:13,786 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 03:09:13,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:09:13,830 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1361935590] [2020-11-28 03:09:13,831 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:09:13,831 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 2] imperfect sequences [] total 5 [2020-11-28 03:09:13,831 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344637967] [2020-11-28 03:09:13,832 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 03:09:13,832 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-28 03:09:13,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 03:09:13,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:09:13,833 INFO L87 Difference]: Start difference. First operand 62 states and 70 transitions. Second operand 6 states. [2020-11-28 03:09:13,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:09:13,934 INFO L93 Difference]: Finished difference Result 61 states and 69 transitions. [2020-11-28 03:09:13,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 03:09:13,935 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-11-28 03:09:13,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:09:13,936 INFO L225 Difference]: With dead ends: 61 [2020-11-28 03:09:13,936 INFO L226 Difference]: Without dead ends: 61 [2020-11-28 03:09:13,936 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:09:13,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-11-28 03:09:13,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2020-11-28 03:09:13,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-11-28 03:09:13,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 69 transitions. [2020-11-28 03:09:13,943 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 69 transitions. Word has length 18 [2020-11-28 03:09:13,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:09:13,943 INFO L481 AbstractCegarLoop]: Abstraction has 61 states and 69 transitions. [2020-11-28 03:09:13,943 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 03:09:13,943 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 69 transitions. [2020-11-28 03:09:13,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-28 03:09:13,944 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:09:13,944 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:09:14,144 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2020-11-28 03:09:14,145 INFO L429 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr3ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr4ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr3ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr2ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2020-11-28 03:09:14,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:09:14,145 INFO L82 PathProgramCache]: Analyzing trace with hash -440378001, now seen corresponding path program 1 times [2020-11-28 03:09:14,146 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:09:14,146 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1993831384] [2020-11-28 03:09:14,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6bf97402-1686-44ef-9836-5c5ae1b12b07/bin/uautomizer/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2020-11-28 03:09:14,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:14,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-28 03:09:14,308 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:09:14,314 INFO L384 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 [2020-11-28 03:09:14,315 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-28 03:09:14,317 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 03:09:14,317 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-28 03:09:14,318 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-11-28 03:09:14,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:09:14,342 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 03:09:14,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:09:14,475 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1993831384] [2020-11-28 03:09:14,476 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:09:14,476 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-28 03:09:14,476 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581167506] [2020-11-28 03:09:14,476 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:09:14,477 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-28 03:09:14,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:09:14,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:09:14,478 INFO L87 Difference]: Start difference. First operand 61 states and 69 transitions. Second operand 5 states. [2020-11-28 03:09:14,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:09:14,657 INFO L93 Difference]: Finished difference Result 74 states and 82 transitions. [2020-11-28 03:09:14,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 03:09:14,658 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2020-11-28 03:09:14,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:09:14,659 INFO L225 Difference]: With dead ends: 74 [2020-11-28 03:09:14,659 INFO L226 Difference]: Without dead ends: 74 [2020-11-28 03:09:14,659 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 32 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:09:14,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-11-28 03:09:14,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 68. [2020-11-28 03:09:14,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-11-28 03:09:14,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 76 transitions. [2020-11-28 03:09:14,668 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 76 transitions. Word has length 19 [2020-11-28 03:09:14,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:09:14,668 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 76 transitions. [2020-11-28 03:09:14,668 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:09:14,669 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 76 transitions. [2020-11-28 03:09:14,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-28 03:09:14,670 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:09:14,670 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:09:14,887 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2020-11-28 03:09:14,887 INFO L429 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr3ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr4ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr3ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr2ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2020-11-28 03:09:14,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:09:14,887 INFO L82 PathProgramCache]: Analyzing trace with hash -766816059, now seen corresponding path program 1 times [2020-11-28 03:09:14,888 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:09:14,888 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [786582110] [2020-11-28 03:09:14,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6bf97402-1686-44ef-9836-5c5ae1b12b07/bin/uautomizer/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2020-11-28 03:09:15,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:15,040 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-28 03:09:15,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:09:15,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:09:15,152 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 03:09:15,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:09:15,270 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [786582110] [2020-11-28 03:09:15,270 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:09:15,270 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2020-11-28 03:09:15,270 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654484284] [2020-11-28 03:09:15,271 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-28 03:09:15,271 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-28 03:09:15,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-28 03:09:15,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-11-28 03:09:15,272 INFO L87 Difference]: Start difference. First operand 68 states and 76 transitions. Second operand 10 states. [2020-11-28 03:09:15,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:09:15,420 INFO L93 Difference]: Finished difference Result 60 states and 67 transitions. [2020-11-28 03:09:15,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-28 03:09:15,421 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 20 [2020-11-28 03:09:15,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:09:15,422 INFO L225 Difference]: With dead ends: 60 [2020-11-28 03:09:15,422 INFO L226 Difference]: Without dead ends: 60 [2020-11-28 03:09:15,423 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-28 03:09:15,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-11-28 03:09:15,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2020-11-28 03:09:15,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-11-28 03:09:15,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 67 transitions. [2020-11-28 03:09:15,429 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 67 transitions. Word has length 20 [2020-11-28 03:09:15,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:09:15,429 INFO L481 AbstractCegarLoop]: Abstraction has 60 states and 67 transitions. [2020-11-28 03:09:15,429 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-28 03:09:15,429 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 67 transitions. [2020-11-28 03:09:15,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-28 03:09:15,430 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:09:15,430 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:09:15,640 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2020-11-28 03:09:15,640 INFO L429 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr3ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr4ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr3ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr2ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2020-11-28 03:09:15,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:09:15,641 INFO L82 PathProgramCache]: Analyzing trace with hash 1360467952, now seen corresponding path program 1 times [2020-11-28 03:09:15,641 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:09:15,642 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [217267235] [2020-11-28 03:09:15,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6bf97402-1686-44ef-9836-5c5ae1b12b07/bin/uautomizer/mathsat Starting monitored process 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2020-11-28 03:09:15,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:15,881 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-28 03:09:15,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:09:16,056 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:09:16,056 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 03:09:16,183 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:09:16,184 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [217267235] [2020-11-28 03:09:16,184 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:09:16,184 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 4] imperfect sequences [] total 9 [2020-11-28 03:09:16,184 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507789712] [2020-11-28 03:09:16,185 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-28 03:09:16,185 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-28 03:09:16,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-28 03:09:16,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-11-28 03:09:16,186 INFO L87 Difference]: Start difference. First operand 60 states and 67 transitions. Second operand 10 states. [2020-11-28 03:09:16,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:09:16,570 INFO L93 Difference]: Finished difference Result 59 states and 66 transitions. [2020-11-28 03:09:16,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-28 03:09:16,571 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 22 [2020-11-28 03:09:16,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:09:16,572 INFO L225 Difference]: With dead ends: 59 [2020-11-28 03:09:16,572 INFO L226 Difference]: Without dead ends: 59 [2020-11-28 03:09:16,573 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-11-28 03:09:16,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-11-28 03:09:16,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2020-11-28 03:09:16,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-11-28 03:09:16,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 66 transitions. [2020-11-28 03:09:16,578 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 66 transitions. Word has length 22 [2020-11-28 03:09:16,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:09:16,578 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 66 transitions. [2020-11-28 03:09:16,578 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-28 03:09:16,579 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 66 transitions. [2020-11-28 03:09:16,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-28 03:09:16,580 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:09:16,580 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:09:16,792 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 mathsat -unsat_core_generation=3 [2020-11-28 03:09:16,792 INFO L429 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr3ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr4ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr3ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr2ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2020-11-28 03:09:16,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:09:16,793 INFO L82 PathProgramCache]: Analyzing trace with hash -1753462742, now seen corresponding path program 1 times [2020-11-28 03:09:16,793 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:09:16,794 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1110057917] [2020-11-28 03:09:16,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6bf97402-1686-44ef-9836-5c5ae1b12b07/bin/uautomizer/mathsat Starting monitored process 13 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with mathsat -unsat_core_generation=3 [2020-11-28 03:09:16,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:16,983 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-28 03:09:16,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:09:17,015 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:09:17,015 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 03:09:17,102 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:09:17,102 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1110057917] [2020-11-28 03:09:17,102 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:09:17,102 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2020-11-28 03:09:17,102 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750421307] [2020-11-28 03:09:17,103 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:09:17,103 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-28 03:09:17,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:09:17,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:09:17,104 INFO L87 Difference]: Start difference. First operand 59 states and 66 transitions. Second operand 5 states. [2020-11-28 03:09:17,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:09:17,186 INFO L93 Difference]: Finished difference Result 59 states and 64 transitions. [2020-11-28 03:09:17,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 03:09:17,187 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-11-28 03:09:17,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:09:17,188 INFO L225 Difference]: With dead ends: 59 [2020-11-28 03:09:17,188 INFO L226 Difference]: Without dead ends: 59 [2020-11-28 03:09:17,188 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:09:17,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-11-28 03:09:17,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2020-11-28 03:09:17,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-11-28 03:09:17,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 64 transitions. [2020-11-28 03:09:17,193 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 64 transitions. Word has length 27 [2020-11-28 03:09:17,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:09:17,194 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 64 transitions. [2020-11-28 03:09:17,194 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:09:17,194 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 64 transitions. [2020-11-28 03:09:17,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-11-28 03:09:17,195 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:09:17,195 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:09:17,408 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 mathsat -unsat_core_generation=3 [2020-11-28 03:09:17,408 INFO L429 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr3ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr4ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr3ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr2ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2020-11-28 03:09:17,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:09:17,409 INFO L82 PathProgramCache]: Analyzing trace with hash 64890135, now seen corresponding path program 1 times [2020-11-28 03:09:17,409 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:09:17,409 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [396476386] [2020-11-28 03:09:17,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6bf97402-1686-44ef-9836-5c5ae1b12b07/bin/uautomizer/mathsat Starting monitored process 14 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with mathsat -unsat_core_generation=3 [2020-11-28 03:09:17,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:17,612 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-28 03:09:17,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:09:17,683 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-28 03:09:17,683 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 03:09:17,761 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-28 03:09:17,761 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [396476386] [2020-11-28 03:09:17,762 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-28 03:09:17,762 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2020-11-28 03:09:17,762 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323947942] [2020-11-28 03:09:17,762 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-28 03:09:17,762 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-28 03:09:17,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-28 03:09:17,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-28 03:09:17,763 INFO L87 Difference]: Start difference. First operand 59 states and 64 transitions. Second operand 7 states. [2020-11-28 03:09:17,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:09:17,954 INFO L93 Difference]: Finished difference Result 65 states and 67 transitions. [2020-11-28 03:09:17,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-28 03:09:17,956 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 29 [2020-11-28 03:09:17,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:09:17,957 INFO L225 Difference]: With dead ends: 65 [2020-11-28 03:09:17,957 INFO L226 Difference]: Without dead ends: 59 [2020-11-28 03:09:17,957 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-11-28 03:09:17,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-11-28 03:09:17,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2020-11-28 03:09:17,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-11-28 03:09:17,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 61 transitions. [2020-11-28 03:09:17,962 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 61 transitions. Word has length 29 [2020-11-28 03:09:17,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:09:17,962 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 61 transitions. [2020-11-28 03:09:17,962 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-28 03:09:17,963 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 61 transitions. [2020-11-28 03:09:17,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-11-28 03:09:17,974 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:09:17,974 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:09:18,189 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 mathsat -unsat_core_generation=3 [2020-11-28 03:09:18,189 INFO L429 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr3ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr4ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr3ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr2ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2020-11-28 03:09:18,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:09:18,189 INFO L82 PathProgramCache]: Analyzing trace with hash -1742564328, now seen corresponding path program 1 times [2020-11-28 03:09:18,190 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:09:18,190 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1705261906] [2020-11-28 03:09:18,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6bf97402-1686-44ef-9836-5c5ae1b12b07/bin/uautomizer/mathsat Starting monitored process 15 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with mathsat -unsat_core_generation=3 [2020-11-28 03:09:18,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:18,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-28 03:09:18,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:09:18,381 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-28 03:09:18,382 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 03:09:18,416 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-28 03:09:18,416 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1705261906] [2020-11-28 03:09:18,417 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:09:18,417 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2020-11-28 03:09:18,417 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228922358] [2020-11-28 03:09:18,418 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:09:18,418 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-28 03:09:18,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:09:18,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:09:18,419 INFO L87 Difference]: Start difference. First operand 59 states and 61 transitions. Second operand 5 states. [2020-11-28 03:09:18,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:09:18,505 INFO L93 Difference]: Finished difference Result 58 states and 60 transitions. [2020-11-28 03:09:18,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 03:09:18,506 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2020-11-28 03:09:18,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:09:18,508 INFO L225 Difference]: With dead ends: 58 [2020-11-28 03:09:18,508 INFO L226 Difference]: Without dead ends: 58 [2020-11-28 03:09:18,508 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:09:18,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-11-28 03:09:18,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 56. [2020-11-28 03:09:18,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-11-28 03:09:18,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 58 transitions. [2020-11-28 03:09:18,512 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 58 transitions. Word has length 29 [2020-11-28 03:09:18,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:09:18,513 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 58 transitions. [2020-11-28 03:09:18,513 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:09:18,513 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 58 transitions. [2020-11-28 03:09:18,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-28 03:09:18,514 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:09:18,514 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:09:18,724 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 mathsat -unsat_core_generation=3 [2020-11-28 03:09:18,724 INFO L429 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr3ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr4ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr3ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr2ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2020-11-28 03:09:18,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:09:18,725 INFO L82 PathProgramCache]: Analyzing trace with hash 188620705, now seen corresponding path program 1 times [2020-11-28 03:09:18,725 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:09:18,725 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1878750712] [2020-11-28 03:09:18,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6bf97402-1686-44ef-9836-5c5ae1b12b07/bin/uautomizer/mathsat Starting monitored process 16 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with mathsat -unsat_core_generation=3 [2020-11-28 03:09:18,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:09:18,898 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:09:18,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:09:18,970 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:09:19,041 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-11-28 03:09:19,043 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 03:09:19,255 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 mathsat -unsat_core_generation=3 [2020-11-28 03:09:19,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:09:19 BoogieIcfgContainer [2020-11-28 03:09:19,317 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:09:19,318 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:09:19,318 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:09:19,318 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:09:19,321 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:09:06" (3/4) ... [2020-11-28 03:09:19,324 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 03:09:19,437 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_6bf97402-1686-44ef-9836-5c5ae1b12b07/bin/uautomizer/witness.graphml [2020-11-28 03:09:19,442 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:09:19,444 INFO L168 Benchmark]: Toolchain (without parser) took 15089.64 ms. Allocated memory was 65.0 MB in the beginning and 117.4 MB in the end (delta: 52.4 MB). Free memory was 47.3 MB in the beginning and 34.3 MB in the end (delta: 13.1 MB). Peak memory consumption was 65.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:09:19,445 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 65.0 MB. Free memory is still 47.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:09:19,446 INFO L168 Benchmark]: CACSL2BoogieTranslator took 816.80 ms. Allocated memory is still 65.0 MB. Free memory was 47.1 MB in the beginning and 35.0 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 03:09:19,449 INFO L168 Benchmark]: Boogie Preprocessor took 86.30 ms. Allocated memory is still 65.0 MB. Free memory was 35.0 MB in the beginning and 32.1 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:09:19,449 INFO L168 Benchmark]: RCFGBuilder took 1020.07 ms. Allocated memory was 65.0 MB in the beginning and 79.7 MB in the end (delta: 14.7 MB). Free memory was 32.1 MB in the beginning and 46.4 MB in the end (delta: -14.3 MB). Peak memory consumption was 10.7 MB. Max. memory is 16.1 GB. [2020-11-28 03:09:19,450 INFO L168 Benchmark]: TraceAbstraction took 13027.09 ms. Allocated memory was 79.7 MB in the beginning and 117.4 MB in the end (delta: 37.7 MB). Free memory was 46.0 MB in the beginning and 37.4 MB in the end (delta: 8.6 MB). Peak memory consumption was 46.6 MB. Max. memory is 16.1 GB. [2020-11-28 03:09:19,451 INFO L168 Benchmark]: Witness Printer took 124.55 ms. Allocated memory is still 117.4 MB. Free memory was 37.4 MB in the beginning and 34.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:09:19,453 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 65.0 MB. Free memory is still 47.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 816.80 ms. Allocated memory is still 65.0 MB. Free memory was 47.1 MB in the beginning and 35.0 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 86.30 ms. Allocated memory is still 65.0 MB. Free memory was 35.0 MB in the beginning and 32.1 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1020.07 ms. Allocated memory was 65.0 MB in the beginning and 79.7 MB in the end (delta: 14.7 MB). Free memory was 32.1 MB in the beginning and 46.4 MB in the end (delta: -14.3 MB). Peak memory consumption was 10.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 13027.09 ms. Allocated memory was 79.7 MB in the beginning and 117.4 MB in the end (delta: 37.7 MB). Free memory was 46.0 MB in the beginning and 37.4 MB in the end (delta: 8.6 MB). Peak memory consumption was 46.6 MB. Max. memory is 16.1 GB. * Witness Printer took 124.55 ms. Allocated memory is still 117.4 MB. Free memory was 37.4 MB in the beginning and 34.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 538]: free of unallocated memory possible free of unallocated memory possible We found a FailurePath: [L512] int num; [L513] int ind, newsize, i = 1; VAL [\old(i)=5, \old(ind)=6, \old(newsize)=7, \old(num)=9, i=1, ind=0, newsize=0, num=0] [L528] num = __VERIFIER_nondet_int() [L529] COND FALSE !(!(num > 0 && num < 100)) [L532] int *a = (int *)malloc(sizeof(int)); VAL [\old(argc)=11, \old(newsize)=0, \old(num)=0, a={1:0}, argc=11, argv={13:12}, argv={13:12}, i=1, ind=0, malloc(sizeof(int))={1:0}, newsize=0, num=1] [L533] COND FALSE !(a == ((void *)0)) [L536] newsize = 0 VAL [\old(argc)=11, \old(newsize)=0, \old(num)=0, a={1:0}, argc=11, argv={13:12}, argv={13:12}, i=1, ind=0, malloc(sizeof(int))={1:0}, newsize=0, num=1] [L537] CALL expandArray(a) VAL [\old(newsize)=0, \old(num)=0, arg={1:0}, i=1, ind=0, newsize=0, num=1] [L515] int *a = (int *)arg; [L516] int *b = ((void *)0); VAL [\old(newsize)=0, \old(num)=0, a={1:0}, arg={1:0}, arg={1:0}, b={0:0}, i=1, ind=0, newsize=0, num=1] [L517] COND TRUE newsize < num [L518] newsize = newsize + 1 VAL [\old(newsize)=0, \old(num)=0, a={1:0}, arg={1:0}, arg={1:0}, b={0:0}, i=1, ind=0, newsize=1, num=1] [L519] EXPR, FCALL realloc(a, sizeof(int) * newsize) VAL [\old(newsize)=0, \old(num)=0, a={1:0}, arg={1:0}, arg={1:0}, b={0:0}, i=1, ind=0, newsize=1, num=1, realloc(a, sizeof(int) * newsize)={1:0}] [L519] b = realloc(a, sizeof(int) * newsize) [L520] b[newsize - 1] = i VAL [\old(newsize)=0, \old(num)=0, a={1:0}, arg={1:0}, arg={1:0}, b={1:0}, i=1, ind=0, newsize=1, num=1] [L521] a = b VAL [\old(newsize)=0, \old(num)=0, a={1:0}, arg={1:0}, arg={1:0}, b={1:0}, i=1, ind=0, newsize=1, num=1] [L517] COND FALSE !(newsize < num) VAL [\old(newsize)=0, \old(num)=0, a={1:0}, arg={1:0}, arg={1:0}, b={1:0}, i=1, ind=0, newsize=1, num=1] [L523] COND TRUE b != ((void *)0) VAL [\old(newsize)=0, \old(num)=0, a={1:0}, arg={1:0}, arg={1:0}, b={1:0}, i=1, ind=0, newsize=1, num=1] [L524] free(b) VAL [\old(newsize)=0, \old(num)=0, a={1:0}, arg={1:0}, arg={1:0}, b={1:0}, i=1, ind=0, newsize=1, num=1] [L524] free(b) VAL [\old(newsize)=0, \old(num)=0, a={1:0}, arg={1:0}, arg={1:0}, b={1:0}, i=1, ind=0, newsize=1, num=1] [L524] free(b) [L525] return 0; VAL [\old(newsize)=0, \old(num)=0, \result={0:0}, a={1:0}, arg={1:0}, arg={1:0}, b={1:0}, i=1, ind=0, newsize=1, num=1] [L537] RET expandArray(a) VAL [\old(argc)=11, \old(newsize)=0, \old(num)=0, a={1:0}, argc=11, argv={13:12}, argv={13:12}, expandArray(a)={0:0}, i=1, ind=0, malloc(sizeof(int))={1:0}, newsize=1, num=1] [L538] free(a) VAL [\old(argc)=11, \old(newsize)=0, \old(num)=0, a={1:0}, argc=11, argv={13:12}, argv={13:12}, i=1, ind=0, malloc(sizeof(int))={1:0}, newsize=1, num=1] [L538] free(a) VAL [\old(argc)=11, \old(newsize)=0, \old(num)=0, a={1:0}, argc=11, argv={13:12}, argv={13:12}, i=1, ind=0, malloc(sizeof(int))={1:0}, newsize=1, num=1] [L538] free(a) VAL [\old(argc)=11, \old(newsize)=0, \old(num)=0, a={1:0}, argc=11, argv={13:12}, argv={13:12}, i=1, ind=0, malloc(sizeof(int))={1:0}, newsize=1, num=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 63 locations, 9 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 12.8s, OverallIterations: 15, TraceHistogramMax: 2, AutomataDifference: 3.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 468 SDtfs, 429 SDslu, 920 SDs, 0 SdLazy, 586 SolverSat, 79 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 528 GetRequests, 452 SyntacticMatches, 5 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=68occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 14 MinimizatonAttempts, 92 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 292 NumberOfCodeBlocks, 292 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 496 ConstructedInterpolants, 27 QuantifiedInterpolants, 29688 SizeOfPredicates, 18 NumberOfNonLiveVariables, 1347 ConjunctsInSsa, 71 ConjunctsInUnsatCore, 28 InterpolantComputations, 26 PerfectInterpolantSequences, 40/44 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 proved your program to be incorrect! Received shutdown request...