./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety-realloc/array-realloc-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_4cbdcd4b-065e-4d08-955c-9e03fb54a144/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_4cbdcd4b-065e-4d08-955c-9e03fb54a144/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_4cbdcd4b-065e-4d08-955c-9e03fb54a144/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_4cbdcd4b-065e-4d08-955c-9e03fb54a144/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety-realloc/array-realloc-3.i -s /tmp/vcloud-vcloud-master/worker/run_dir_4cbdcd4b-065e-4d08-955c-9e03fb54a144/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_4cbdcd4b-065e-4d08-955c-9e03fb54a144/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 c5e00b9cd3876aa8df4263099f6b8339445d38f8 ............................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_4cbdcd4b-065e-4d08-955c-9e03fb54a144/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_4cbdcd4b-065e-4d08-955c-9e03fb54a144/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_4cbdcd4b-065e-4d08-955c-9e03fb54a144/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_4cbdcd4b-065e-4d08-955c-9e03fb54a144/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety-realloc/array-realloc-3.i -s /tmp/vcloud-vcloud-master/worker/run_dir_4cbdcd4b-065e-4d08-955c-9e03fb54a144/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_4cbdcd4b-065e-4d08-955c-9e03fb54a144/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 c5e00b9cd3876aa8df4263099f6b8339445d38f8 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 15:03:48,511 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 15:03:48,512 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 15:03:48,519 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 15:03:48,520 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 15:03:48,520 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 15:03:48,521 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 15:03:48,522 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 15:03:48,524 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 15:03:48,524 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 15:03:48,525 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 15:03:48,526 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 15:03:48,526 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 15:03:48,526 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 15:03:48,527 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 15:03:48,528 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 15:03:48,528 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 15:03:48,529 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 15:03:48,530 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 15:03:48,532 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 15:03:48,533 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 15:03:48,533 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 15:03:48,534 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 15:03:48,534 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 15:03:48,536 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 15:03:48,536 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 15:03:48,537 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 15:03:48,537 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 15:03:48,537 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 15:03:48,538 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 15:03:48,538 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 15:03:48,538 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 15:03:48,539 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 15:03:48,539 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 15:03:48,540 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 15:03:48,540 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 15:03:48,540 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 15:03:48,540 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 15:03:48,540 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 15:03:48,541 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 15:03:48,541 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 15:03:48,542 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_4cbdcd4b-065e-4d08-955c-9e03fb54a144/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-12-07 15:03:48,551 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 15:03:48,552 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 15:03:48,552 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 15:03:48,552 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 15:03:48,553 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 15:03:48,553 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 15:03:48,553 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 15:03:48,553 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 15:03:48,553 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 15:03:48,553 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 15:03:48,553 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 15:03:48,553 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-12-07 15:03:48,554 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-12-07 15:03:48,554 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-12-07 15:03:48,554 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 15:03:48,554 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 15:03:48,554 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 15:03:48,554 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 15:03:48,555 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 15:03:48,555 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 15:03:48,555 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 15:03:48,555 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 15:03:48,555 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 15:03:48,555 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 15:03:48,555 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 15:03:48,555 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 15:03:48,555 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 15:03:48,555 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 15:03:48,556 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_4cbdcd4b-065e-4d08-955c-9e03fb54a144/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 -> c5e00b9cd3876aa8df4263099f6b8339445d38f8 [2019-12-07 15:03:48,654 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 15:03:48,663 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 15:03:48,666 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 15:03:48,667 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 15:03:48,667 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 15:03:48,668 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_4cbdcd4b-065e-4d08-955c-9e03fb54a144/bin/uautomizer/../../sv-benchmarks/c/array-memsafety-realloc/array-realloc-3.i [2019-12-07 15:03:48,707 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4cbdcd4b-065e-4d08-955c-9e03fb54a144/bin/uautomizer/data/6d080a2bf/272f8366e41e49828ca8905ee82c0da4/FLAGc7c7bbcea [2019-12-07 15:03:49,131 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 15:03:49,132 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_4cbdcd4b-065e-4d08-955c-9e03fb54a144/sv-benchmarks/c/array-memsafety-realloc/array-realloc-3.i [2019-12-07 15:03:49,141 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4cbdcd4b-065e-4d08-955c-9e03fb54a144/bin/uautomizer/data/6d080a2bf/272f8366e41e49828ca8905ee82c0da4/FLAGc7c7bbcea [2019-12-07 15:03:49,149 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_4cbdcd4b-065e-4d08-955c-9e03fb54a144/bin/uautomizer/data/6d080a2bf/272f8366e41e49828ca8905ee82c0da4 [2019-12-07 15:03:49,151 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 15:03:49,152 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-07 15:03:49,152 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 15:03:49,152 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 15:03:49,155 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 15:03:49,155 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:03:49" (1/1) ... [2019-12-07 15:03:49,157 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a2ff042 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:03:49, skipping insertion in model container [2019-12-07 15:03:49,157 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:03:49" (1/1) ... [2019-12-07 15:03:49,162 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 15:03:49,186 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 15:03:49,390 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:03:49,401 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) [2019-12-07 15:03:49,402 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1e8752cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:03:49, skipping insertion in model container [2019-12-07 15:03:49,402 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 15:03:49,402 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2019-12-07 15:03:49,404 INFO L168 Benchmark]: Toolchain (without parser) took 251.26 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.9 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -149.8 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2019-12-07 15:03:49,404 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 960.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:03:49,405 INFO L168 Benchmark]: CACSL2BoogieTranslator took 249.62 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.9 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -149.8 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2019-12-07 15:03:49,406 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 960.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 249.62 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.9 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -149.8 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 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 0.1.25-f470102 [2019-12-07 15:03:50,527 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 15:03:50,528 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 15:03:50,536 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 15:03:50,536 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 15:03:50,537 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 15:03:50,538 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 15:03:50,540 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 15:03:50,542 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 15:03:50,542 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 15:03:50,543 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 15:03:50,544 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 15:03:50,544 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 15:03:50,545 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 15:03:50,545 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 15:03:50,546 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 15:03:50,547 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 15:03:50,548 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 15:03:50,549 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 15:03:50,550 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 15:03:50,552 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 15:03:50,553 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 15:03:50,554 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 15:03:50,555 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 15:03:50,557 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 15:03:50,557 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 15:03:50,558 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 15:03:50,558 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 15:03:50,559 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 15:03:50,560 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 15:03:50,560 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 15:03:50,560 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 15:03:50,561 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 15:03:50,561 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 15:03:50,562 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 15:03:50,562 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 15:03:50,562 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 15:03:50,563 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 15:03:50,563 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 15:03:50,563 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 15:03:50,564 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 15:03:50,564 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_4cbdcd4b-065e-4d08-955c-9e03fb54a144/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-12-07 15:03:50,577 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 15:03:50,577 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 15:03:50,578 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 15:03:50,578 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 15:03:50,578 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 15:03:50,579 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 15:03:50,579 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 15:03:50,579 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 15:03:50,579 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 15:03:50,579 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 15:03:50,580 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 15:03:50,580 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-12-07 15:03:50,580 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-12-07 15:03:50,580 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-12-07 15:03:50,580 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 15:03:50,581 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 15:03:50,581 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 15:03:50,581 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 15:03:50,581 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 15:03:50,581 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 15:03:50,581 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 15:03:50,582 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 15:03:50,582 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 15:03:50,582 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 15:03:50,582 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 15:03:50,583 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 15:03:50,583 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 15:03:50,583 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-12-07 15:03:50,583 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 15:03:50,583 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 15:03:50,583 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 15:03:50,584 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_4cbdcd4b-065e-4d08-955c-9e03fb54a144/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 -> c5e00b9cd3876aa8df4263099f6b8339445d38f8 [2019-12-07 15:03:50,750 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 15:03:50,758 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 15:03:50,760 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 15:03:50,761 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 15:03:50,761 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 15:03:50,762 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_4cbdcd4b-065e-4d08-955c-9e03fb54a144/bin/uautomizer/../../sv-benchmarks/c/array-memsafety-realloc/array-realloc-3.i [2019-12-07 15:03:50,799 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4cbdcd4b-065e-4d08-955c-9e03fb54a144/bin/uautomizer/data/c1fb4e1d6/b06cc9e355cc497ca6d0371a34bb4a4d/FLAG76fca73f0 [2019-12-07 15:03:51,273 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 15:03:51,274 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_4cbdcd4b-065e-4d08-955c-9e03fb54a144/sv-benchmarks/c/array-memsafety-realloc/array-realloc-3.i [2019-12-07 15:03:51,283 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4cbdcd4b-065e-4d08-955c-9e03fb54a144/bin/uautomizer/data/c1fb4e1d6/b06cc9e355cc497ca6d0371a34bb4a4d/FLAG76fca73f0 [2019-12-07 15:03:51,292 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_4cbdcd4b-065e-4d08-955c-9e03fb54a144/bin/uautomizer/data/c1fb4e1d6/b06cc9e355cc497ca6d0371a34bb4a4d [2019-12-07 15:03:51,294 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 15:03:51,295 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-07 15:03:51,296 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 15:03:51,296 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 15:03:51,298 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 15:03:51,298 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:03:51" (1/1) ... [2019-12-07 15:03:51,300 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a1cb679 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:03:51, skipping insertion in model container [2019-12-07 15:03:51,300 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:03:51" (1/1) ... [2019-12-07 15:03:51,305 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 15:03:51,328 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 15:03:51,534 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:03:51,548 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 15:03:51,566 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 15:03:51,590 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:03:51,596 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 15:03:51,625 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:03:51,667 INFO L208 MainTranslator]: Completed translation [2019-12-07 15:03:51,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:03:51 WrapperNode [2019-12-07 15:03:51,668 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 15:03:51,668 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 15:03:51,668 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 15:03:51,668 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 15:03:51,677 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:03:51" (1/1) ... [2019-12-07 15:03:51,677 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:03:51" (1/1) ... [2019-12-07 15:03:51,689 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:03:51" (1/1) ... [2019-12-07 15:03:51,689 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:03:51" (1/1) ... [2019-12-07 15:03:51,702 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:03:51" (1/1) ... [2019-12-07 15:03:51,706 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:03:51" (1/1) ... [2019-12-07 15:03:51,709 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:03:51" (1/1) ... [2019-12-07 15:03:51,713 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 15:03:51,714 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 15:03:51,714 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 15:03:51,714 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 15:03:51,715 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:03:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4cbdcd4b-065e-4d08-955c-9e03fb54a144/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 [2019-12-07 15:03:51,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-12-07 15:03:51,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 15:03:51,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2019-12-07 15:03:51,755 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-12-07 15:03:51,755 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-12-07 15:03:51,755 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-12-07 15:03:51,755 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-12-07 15:03:51,755 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-12-07 15:03:51,755 INFO L138 BoogieDeclarations]: Found implementation of procedure expandArray [2019-12-07 15:03:51,755 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-12-07 15:03:51,756 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc [2019-12-07 15:03:51,756 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-12-07 15:03:51,756 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-12-07 15:03:51,756 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-12-07 15:03:51,756 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-12-07 15:03:51,756 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-12-07 15:03:51,756 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-12-07 15:03:51,756 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-12-07 15:03:51,756 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-12-07 15:03:51,757 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-12-07 15:03:51,757 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-12-07 15:03:51,757 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-12-07 15:03:51,757 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-12-07 15:03:51,757 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-12-07 15:03:51,757 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-12-07 15:03:51,757 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-12-07 15:03:51,757 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-12-07 15:03:51,757 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-12-07 15:03:51,757 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-12-07 15:03:51,758 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-12-07 15:03:51,758 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-12-07 15:03:51,758 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-12-07 15:03:51,758 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-12-07 15:03:51,758 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-12-07 15:03:51,758 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-12-07 15:03:51,758 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-12-07 15:03:51,758 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-12-07 15:03:51,758 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-12-07 15:03:51,758 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-12-07 15:03:51,758 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-12-07 15:03:51,758 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-12-07 15:03:51,758 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-12-07 15:03:51,759 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-12-07 15:03:51,759 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-12-07 15:03:51,759 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-12-07 15:03:51,759 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-12-07 15:03:51,759 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-12-07 15:03:51,759 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-12-07 15:03:51,759 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-12-07 15:03:51,759 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-12-07 15:03:51,759 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-12-07 15:03:51,759 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-12-07 15:03:51,759 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-12-07 15:03:51,759 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-12-07 15:03:51,760 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-12-07 15:03:51,760 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-12-07 15:03:51,760 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-12-07 15:03:51,760 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-12-07 15:03:51,760 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-12-07 15:03:51,760 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-12-07 15:03:51,760 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-12-07 15:03:51,760 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-12-07 15:03:51,760 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-12-07 15:03:51,760 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-12-07 15:03:51,760 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-12-07 15:03:51,760 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-12-07 15:03:51,760 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-12-07 15:03:51,760 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-12-07 15:03:51,761 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-12-07 15:03:51,761 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-12-07 15:03:51,761 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-12-07 15:03:51,761 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-12-07 15:03:51,761 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-12-07 15:03:51,761 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-12-07 15:03:51,761 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-12-07 15:03:51,761 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-12-07 15:03:51,761 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-12-07 15:03:51,761 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-12-07 15:03:51,761 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-12-07 15:03:51,761 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-12-07 15:03:51,761 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-12-07 15:03:51,762 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-12-07 15:03:51,762 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-12-07 15:03:51,762 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-12-07 15:03:51,762 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-12-07 15:03:51,762 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-12-07 15:03:51,762 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-12-07 15:03:51,762 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-12-07 15:03:51,762 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-12-07 15:03:51,762 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-12-07 15:03:51,763 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-12-07 15:03:51,763 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-12-07 15:03:51,763 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-12-07 15:03:51,763 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-12-07 15:03:51,763 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-12-07 15:03:51,763 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-12-07 15:03:51,763 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-12-07 15:03:51,763 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-12-07 15:03:51,763 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-12-07 15:03:51,763 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-12-07 15:03:51,764 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-12-07 15:03:51,764 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-12-07 15:03:51,764 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-12-07 15:03:51,764 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-12-07 15:03:51,764 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-12-07 15:03:51,764 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-12-07 15:03:51,764 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-12-07 15:03:51,764 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-12-07 15:03:51,764 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-12-07 15:03:51,765 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-12-07 15:03:51,765 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-12-07 15:03:51,765 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-12-07 15:03:51,765 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-12-07 15:03:51,765 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-12-07 15:03:51,765 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-12-07 15:03:51,765 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-12-07 15:03:51,765 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-12-07 15:03:51,765 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-12-07 15:03:51,765 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-12-07 15:03:51,766 INFO L130 BoogieDeclarations]: Found specification of procedure expandArray [2019-12-07 15:03:51,766 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc [2019-12-07 15:03:51,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-12-07 15:03:51,766 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-12-07 15:03:51,766 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-12-07 15:03:51,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-12-07 15:03:51,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 15:03:51,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2019-12-07 15:03:51,766 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-07 15:03:51,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 15:03:52,043 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 15:03:52,043 INFO L287 CfgBuilder]: Removed 1 assume(true) statements. [2019-12-07 15:03:52,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:03:52 BoogieIcfgContainer [2019-12-07 15:03:52,044 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 15:03:52,045 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 15:03:52,045 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 15:03:52,047 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 15:03:52,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 03:03:51" (1/3) ... [2019-12-07 15:03:52,047 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d621699 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 03:03:52, skipping insertion in model container [2019-12-07 15:03:52,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:03:51" (2/3) ... [2019-12-07 15:03:52,048 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d621699 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 03:03:52, skipping insertion in model container [2019-12-07 15:03:52,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:03:52" (3/3) ... [2019-12-07 15:03:52,049 INFO L109 eAbstractionObserver]: Analyzing ICFG array-realloc-3.i [2019-12-07 15:03:52,055 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 15:03:52,060 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-12-07 15:03:52,067 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-07 15:03:52,079 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 15:03:52,079 INFO L374 AbstractCegarLoop]: Hoare is false [2019-12-07 15:03:52,080 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 15:03:52,080 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 15:03:52,080 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 15:03:52,080 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 15:03:52,080 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 15:03:52,080 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 15:03:52,088 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2019-12-07 15:03:52,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-07 15:03:52,094 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:03:52,094 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:03:52,094 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2019-12-07 15:03:52,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:03:52,098 INFO L82 PathProgramCache]: Analyzing trace with hash 451943323, now seen corresponding path program 1 times [2019-12-07 15:03:52,105 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 15:03:52,105 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1160554335] [2019-12-07 15:03:52,105 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4cbdcd4b-065e-4d08-955c-9e03fb54a144/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 [2019-12-07 15:03:52,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:03:52,212 INFO L264 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 15:03:52,217 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:03:52,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:03:52,242 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 15:03:52,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:03:52,250 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1160554335] [2019-12-07 15:03:52,251 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:03:52,251 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 15:03:52,252 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694336229] [2019-12-07 15:03:52,255 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 15:03:52,255 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 15:03:52,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 15:03:52,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 15:03:52,267 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 3 states. [2019-12-07 15:03:52,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:03:52,330 INFO L93 Difference]: Finished difference Result 35 states and 40 transitions. [2019-12-07 15:03:52,330 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 15:03:52,331 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-07 15:03:52,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:03:52,339 INFO L225 Difference]: With dead ends: 35 [2019-12-07 15:03:52,339 INFO L226 Difference]: Without dead ends: 31 [2019-12-07 15:03:52,340 INFO L630 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 [2019-12-07 15:03:52,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-12-07 15:03:52,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 26. [2019-12-07 15:03:52,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-12-07 15:03:52,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2019-12-07 15:03:52,366 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 8 [2019-12-07 15:03:52,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:03:52,367 INFO L462 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2019-12-07 15:03:52,367 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 15:03:52,367 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2019-12-07 15:03:52,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-07 15:03:52,367 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:03:52,367 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:03:52,568 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 15:03:52,569 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2019-12-07 15:03:52,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:03:52,570 INFO L82 PathProgramCache]: Analyzing trace with hash 1125341978, now seen corresponding path program 1 times [2019-12-07 15:03:52,571 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 15:03:52,571 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [664941623] [2019-12-07 15:03:52,572 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4cbdcd4b-065e-4d08-955c-9e03fb54a144/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 [2019-12-07 15:03:52,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:03:52,705 INFO L264 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 15:03:52,706 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:03:52,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:03:52,714 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 15:03:52,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:03:52,719 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [664941623] [2019-12-07 15:03:52,719 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:03:52,719 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 15:03:52,719 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759040740] [2019-12-07 15:03:52,720 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 15:03:52,720 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 15:03:52,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 15:03:52,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 15:03:52,721 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand 3 states. [2019-12-07 15:03:52,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:03:52,724 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2019-12-07 15:03:52,724 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 15:03:52,724 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-07 15:03:52,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:03:52,725 INFO L225 Difference]: With dead ends: 26 [2019-12-07 15:03:52,725 INFO L226 Difference]: Without dead ends: 26 [2019-12-07 15:03:52,726 INFO L630 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 [2019-12-07 15:03:52,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-12-07 15:03:52,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2019-12-07 15:03:52,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-12-07 15:03:52,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2019-12-07 15:03:52,729 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 9 [2019-12-07 15:03:52,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:03:52,729 INFO L462 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2019-12-07 15:03:52,729 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 15:03:52,729 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2019-12-07 15:03:52,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-12-07 15:03:52,730 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:03:52,730 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:03:52,930 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 15:03:52,931 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2019-12-07 15:03:52,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:03:52,932 INFO L82 PathProgramCache]: Analyzing trace with hash -285526799, now seen corresponding path program 1 times [2019-12-07 15:03:52,933 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 15:03:52,934 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1136280589] [2019-12-07 15:03:52,935 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4cbdcd4b-065e-4d08-955c-9e03fb54a144/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 [2019-12-07 15:03:53,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:03:53,070 INFO L264 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-07 15:03:53,071 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:03:53,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:03:53,130 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 15:03:53,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:03:53,197 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1136280589] [2019-12-07 15:03:53,197 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:03:53,197 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2019-12-07 15:03:53,198 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789113622] [2019-12-07 15:03:53,198 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-07 15:03:53,198 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 15:03:53,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-07 15:03:53,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2019-12-07 15:03:53,199 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 10 states. [2019-12-07 15:03:53,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:03:53,284 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2019-12-07 15:03:53,284 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 15:03:53,285 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2019-12-07 15:03:53,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:03:53,285 INFO L225 Difference]: With dead ends: 27 [2019-12-07 15:03:53,285 INFO L226 Difference]: Without dead ends: 27 [2019-12-07 15:03:53,286 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2019-12-07 15:03:53,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-12-07 15:03:53,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2019-12-07 15:03:53,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-12-07 15:03:53,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2019-12-07 15:03:53,289 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 16 [2019-12-07 15:03:53,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:03:53,289 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2019-12-07 15:03:53,289 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-07 15:03:53,289 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2019-12-07 15:03:53,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-07 15:03:53,290 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:03:53,290 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:03:53,490 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 15:03:53,491 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2019-12-07 15:03:53,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:03:53,492 INFO L82 PathProgramCache]: Analyzing trace with hash 1792130560, now seen corresponding path program 1 times [2019-12-07 15:03:53,494 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 15:03:53,494 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [326893131] [2019-12-07 15:03:53,495 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4cbdcd4b-065e-4d08-955c-9e03fb54a144/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 [2019-12-07 15:03:53,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:03:53,631 INFO L264 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 15:03:53,633 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:03:53,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:03:53,651 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 15:03:53,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:03:53,665 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [326893131] [2019-12-07 15:03:53,665 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:03:53,665 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2019-12-07 15:03:53,665 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569864480] [2019-12-07 15:03:53,666 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 15:03:53,666 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 15:03:53,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 15:03:53,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-12-07 15:03:53,666 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 6 states. [2019-12-07 15:03:53,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:03:53,693 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2019-12-07 15:03:53,694 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 15:03:53,694 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2019-12-07 15:03:53,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:03:53,695 INFO L225 Difference]: With dead ends: 35 [2019-12-07 15:03:53,695 INFO L226 Difference]: Without dead ends: 35 [2019-12-07 15:03:53,695 INFO L630 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 [2019-12-07 15:03:53,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-12-07 15:03:53,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 30. [2019-12-07 15:03:53,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-12-07 15:03:53,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 32 transitions. [2019-12-07 15:03:53,699 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 32 transitions. Word has length 17 [2019-12-07 15:03:53,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:03:53,699 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 32 transitions. [2019-12-07 15:03:53,699 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 15:03:53,699 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2019-12-07 15:03:53,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-07 15:03:53,700 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:03:53,700 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:03:53,901 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 15:03:53,901 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2019-12-07 15:03:53,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:03:53,902 INFO L82 PathProgramCache]: Analyzing trace with hash 1793054081, now seen corresponding path program 1 times [2019-12-07 15:03:53,903 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 15:03:53,904 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [346092710] [2019-12-07 15:03:53,905 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4cbdcd4b-065e-4d08-955c-9e03fb54a144/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 [2019-12-07 15:03:53,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:03:54,000 INFO L264 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 15:03:54,002 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:03:54,048 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 15:03:54,048 INFO L377 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 [2019-12-07 15:03:54,049 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 15:03:54,066 INFO L614 ElimStorePlain]: treesize reduction 10, result has 60.0 percent of original size [2019-12-07 15:03:54,067 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 15:03:54,068 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:9, output treesize:5 [2019-12-07 15:03:54,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:03:54,085 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 15:03:54,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:03:54,110 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [346092710] [2019-12-07 15:03:54,111 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:03:54,111 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-12-07 15:03:54,111 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452906826] [2019-12-07 15:03:54,112 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 15:03:54,112 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 15:03:54,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 15:03:54,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 15:03:54,112 INFO L87 Difference]: Start difference. First operand 30 states and 32 transitions. Second operand 5 states. [2019-12-07 15:03:54,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:03:54,169 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions. [2019-12-07 15:03:54,170 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 15:03:54,170 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2019-12-07 15:03:54,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:03:54,171 INFO L225 Difference]: With dead ends: 29 [2019-12-07 15:03:54,171 INFO L226 Difference]: Without dead ends: 29 [2019-12-07 15:03:54,171 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 15:03:54,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-12-07 15:03:54,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2019-12-07 15:03:54,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-12-07 15:03:54,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2019-12-07 15:03:54,175 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 17 [2019-12-07 15:03:54,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:03:54,175 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2019-12-07 15:03:54,175 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 15:03:54,175 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2019-12-07 15:03:54,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-07 15:03:54,176 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:03:54,176 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:03:54,376 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 15:03:54,377 INFO L410 AbstractCegarLoop]: === Iteration 6 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2019-12-07 15:03:54,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:03:54,378 INFO L82 PathProgramCache]: Analyzing trace with hash 1793054082, now seen corresponding path program 1 times [2019-12-07 15:03:54,379 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 15:03:54,380 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [896936529] [2019-12-07 15:03:54,380 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4cbdcd4b-065e-4d08-955c-9e03fb54a144/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 [2019-12-07 15:03:54,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:03:54,540 INFO L264 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 12 conjunts are in the unsatisfiable core [2019-12-07 15:03:54,541 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:03:54,555 INFO L377 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 [2019-12-07 15:03:54,555 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 15:03:54,560 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 15:03:54,561 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 15:03:54,561 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2019-12-07 15:03:54,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:03:54,598 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 15:03:54,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:03:54,939 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [896936529] [2019-12-07 15:03:54,940 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:03:54,940 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2019-12-07 15:03:54,940 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072497812] [2019-12-07 15:03:54,940 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-12-07 15:03:54,940 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 15:03:54,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-12-07 15:03:54,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2019-12-07 15:03:54,941 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand 12 states. [2019-12-07 15:03:55,656 WARN L192 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 21 [2019-12-07 15:03:55,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:03:55,954 INFO L93 Difference]: Finished difference Result 76 states and 79 transitions. [2019-12-07 15:03:55,955 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-12-07 15:03:55,955 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 17 [2019-12-07 15:03:55,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:03:55,956 INFO L225 Difference]: With dead ends: 76 [2019-12-07 15:03:55,956 INFO L226 Difference]: Without dead ends: 74 [2019-12-07 15:03:55,956 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2019-12-07 15:03:55,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2019-12-07 15:03:55,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 48. [2019-12-07 15:03:55,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2019-12-07 15:03:55,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 53 transitions. [2019-12-07 15:03:55,961 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 53 transitions. Word has length 17 [2019-12-07 15:03:55,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:03:55,961 INFO L462 AbstractCegarLoop]: Abstraction has 48 states and 53 transitions. [2019-12-07 15:03:55,962 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-12-07 15:03:55,962 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 53 transitions. [2019-12-07 15:03:55,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-12-07 15:03:55,962 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:03:55,962 INFO L410 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] [2019-12-07 15:03:56,163 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-12-07 15:03:56,164 INFO L410 AbstractCegarLoop]: === Iteration 7 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2019-12-07 15:03:56,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:03:56,164 INFO L82 PathProgramCache]: Analyzing trace with hash 494948438, now seen corresponding path program 1 times [2019-12-07 15:03:56,165 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 15:03:56,166 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [54182739] [2019-12-07 15:03:56,166 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4cbdcd4b-065e-4d08-955c-9e03fb54a144/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 [2019-12-07 15:03:56,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:03:56,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:03:56,371 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-12-07 15:03:56,371 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 15:03:56,571 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2019-12-07 15:03:56,613 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2019-12-07 15:03:56,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 03:03:56 BoogieIcfgContainer [2019-12-07 15:03:56,630 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 15:03:56,630 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 15:03:56,630 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 15:03:56,630 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 15:03:56,631 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:03:52" (3/4) ... [2019-12-07 15:03:56,633 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 15:03:56,633 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 15:03:56,634 INFO L168 Benchmark]: Toolchain (without parser) took 5338.90 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 223.9 MB). Free memory was 948.4 MB in the beginning and 1.1 GB in the end (delta: -122.6 MB). Peak memory consumption was 101.3 MB. Max. memory is 11.5 GB. [2019-12-07 15:03:56,634 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:03:56,635 INFO L168 Benchmark]: CACSL2BoogieTranslator took 372.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 948.4 MB in the beginning and 1.1 GB in the end (delta: -167.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. [2019-12-07 15:03:56,635 INFO L168 Benchmark]: Boogie Preprocessor took 45.24 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:03:56,635 INFO L168 Benchmark]: RCFGBuilder took 330.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 58.2 MB). Peak memory consumption was 58.2 MB. Max. memory is 11.5 GB. [2019-12-07 15:03:56,636 INFO L168 Benchmark]: TraceAbstraction took 4585.19 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 83.4 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -12.8 MB). Peak memory consumption was 70.5 MB. Max. memory is 11.5 GB. [2019-12-07 15:03:56,636 INFO L168 Benchmark]: Witness Printer took 2.70 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:03:56,637 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 372.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 948.4 MB in the beginning and 1.1 GB in the end (delta: -167.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 45.24 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 330.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 58.2 MB). Peak memory consumption was 58.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4585.19 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 83.4 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -12.8 MB). Peak memory consumption was 70.5 MB. Max. memory is 11.5 GB. * Witness Printer took 2.70 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 525]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 525. Possible 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] [L526] num = __VERIFIER_nondet_int() [L527] COND FALSE !(!(num > 0 && num < 100)) [L530] 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] [L531] COND FALSE !(a == ((void *)0)) [L534] 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] [L535] 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; VAL [\old(newsize)=0, \old(num)=0, a={1:0}, arg={1:0}, arg={1:0}, i=1, ind=0, newsize=0, num=1] [L516] COND TRUE newsize < num [L517] newsize = newsize + 1 [L518] 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=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] [L516] 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] 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] [L535] 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] [L536] return 0; VAL [\old(argc)=11, \old(newsize)=0, \old(num)=0, \result=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, 50 locations, 3 error locations. Result: UNSAFE, OverallTime: 4.4s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 145 SDtfs, 162 SDslu, 231 SDs, 0 SdLazy, 194 SolverSat, 55 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 172 GetRequests, 135 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=48occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 36 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 108 NumberOfCodeBlocks, 108 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 156 ConstructedInterpolants, 0 QuantifiedInterpolants, 8405 SizeOfPredicates, 10 NumberOfNonLiveVariables, 492 ConjunctsInSsa, 34 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...