./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 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_80b0de80-cacf-4159-9fd3-b45b47ab2211/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_80b0de80-cacf-4159-9fd3-b45b47ab2211/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_80b0de80-cacf-4159-9fd3-b45b47ab2211/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_80b0de80-cacf-4159-9fd3-b45b47ab2211/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety-realloc/array-realloc-3.i -s /tmp/vcloud-vcloud-master/worker/run_dir_80b0de80-cacf-4159-9fd3-b45b47ab2211/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_80b0de80-cacf-4159-9fd3-b45b47ab2211/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/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_80b0de80-cacf-4159-9fd3-b45b47ab2211/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_80b0de80-cacf-4159-9fd3-b45b47ab2211/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_80b0de80-cacf-4159-9fd3-b45b47ab2211/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_80b0de80-cacf-4159-9fd3-b45b47ab2211/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety-realloc/array-realloc-3.i -s /tmp/vcloud-vcloud-master/worker/run_dir_80b0de80-cacf-4159-9fd3-b45b47ab2211/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_80b0de80-cacf-4159-9fd3-b45b47ab2211/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 0.2.0-69874e2 [2020-12-01 15:09:07,372 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:09:07,396 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:09:07,479 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 15:09:07,480 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 15:09:07,481 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 15:09:07,484 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 15:09:07,487 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 15:09:07,489 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 15:09:07,491 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 15:09:07,493 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 15:09:07,494 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 15:09:07,495 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:09:07,497 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:09:07,498 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:09:07,500 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:09:07,502 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:09:07,503 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:09:07,509 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:09:07,512 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:09:07,514 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:09:07,518 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:09:07,521 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:09:07,523 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:09:07,535 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 15:09:07,536 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 15:09:07,536 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 15:09:07,538 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 15:09:07,538 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 15:09:07,540 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 15:09:07,540 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:09:07,541 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:09:07,543 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:09:07,544 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:09:07,550 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:09:07,552 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:09:07,553 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:09:07,553 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:09:07,553 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:09:07,555 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:09:07,555 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:09:07,560 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_80b0de80-cacf-4159-9fd3-b45b47ab2211/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-12-01 15:09:07,608 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:09:07,608 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:09:07,610 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:09:07,611 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:09:07,611 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:09:07,611 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:09:07,611 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 15:09:07,612 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-01 15:09:07,612 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 15:09:07,612 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 15:09:07,613 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:09:07,613 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-12-01 15:09:07,614 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-12-01 15:09:07,614 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-12-01 15:09:07,614 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 15:09:07,614 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-01 15:09:07,615 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 15:09:07,615 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:09:07,615 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:09:07,615 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:09:07,616 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 15:09:07,616 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 15:09:07,616 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 15:09:07,616 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:09:07,617 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 15:09:07,617 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 15:09:07,617 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 15:09:07,617 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:09:07,618 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_80b0de80-cacf-4159-9fd3-b45b47ab2211/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_80b0de80-cacf-4159-9fd3-b45b47ab2211/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c5e00b9cd3876aa8df4263099f6b8339445d38f8 [2020-12-01 15:09:08,012 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:09:08,058 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:09:08,063 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:09:08,066 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:09:08,067 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:09:08,068 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_80b0de80-cacf-4159-9fd3-b45b47ab2211/bin/uautomizer/../../sv-benchmarks/c/array-memsafety-realloc/array-realloc-3.i [2020-12-01 15:09:08,177 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_80b0de80-cacf-4159-9fd3-b45b47ab2211/bin/uautomizer/data/3b6174df5/287eb966c84143e8a28f03118df39928/FLAGf9b92c4be [2020-12-01 15:09:08,823 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:09:08,825 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_80b0de80-cacf-4159-9fd3-b45b47ab2211/sv-benchmarks/c/array-memsafety-realloc/array-realloc-3.i [2020-12-01 15:09:08,853 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_80b0de80-cacf-4159-9fd3-b45b47ab2211/bin/uautomizer/data/3b6174df5/287eb966c84143e8a28f03118df39928/FLAGf9b92c4be [2020-12-01 15:09:09,089 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_80b0de80-cacf-4159-9fd3-b45b47ab2211/bin/uautomizer/data/3b6174df5/287eb966c84143e8a28f03118df39928 [2020-12-01 15:09:09,095 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:09:09,099 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-12-01 15:09:09,102 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:09:09,103 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:09:09,107 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:09:09,108 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:09:09" (1/1) ... [2020-12-01 15:09:09,115 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e3b066c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:09:09, skipping insertion in model container [2020-12-01 15:09:09,115 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:09:09" (1/1) ... [2020-12-01 15:09:09,124 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:09:09,187 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:09:09,619 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:09:09,636 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2020-12-01 15:09:09,637 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2046bc3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:09:09, skipping insertion in model container [2020-12-01 15:09:09,637 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:09:09,638 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2020-12-01 15:09:09,641 INFO L168 Benchmark]: Toolchain (without parser) took 540.98 ms. Allocated memory is still 90.2 MB. Free memory was 58.4 MB in the beginning and 66.9 MB in the end (delta: -8.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-01 15:09:09,643 INFO L168 Benchmark]: CDTParser took 0.71 ms. Allocated memory is still 90.2 MB. Free memory was 47.2 MB in the beginning and 47.1 MB in the end (delta: 35.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:09:09,645 INFO L168 Benchmark]: CACSL2BoogieTranslator took 535.51 ms. Allocated memory is still 90.2 MB. Free memory was 58.1 MB in the beginning and 66.9 MB in the end (delta: -8.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-01 15:09:09,648 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.71 ms. Allocated memory is still 90.2 MB. Free memory was 47.2 MB in the beginning and 47.1 MB in the end (delta: 35.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 535.51 ms. Allocated memory is still 90.2 MB. Free memory was 58.1 MB in the beginning and 66.9 MB in the end (delta: -8.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 515]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-69874e2 [2020-12-01 15:09:12,227 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:09:12,231 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:09:12,291 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 15:09:12,292 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 15:09:12,298 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 15:09:12,301 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 15:09:12,307 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 15:09:12,311 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 15:09:12,318 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 15:09:12,320 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 15:09:12,328 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 15:09:12,328 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:09:12,333 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:09:12,335 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:09:12,337 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:09:12,338 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:09:12,343 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:09:12,345 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:09:12,348 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:09:12,350 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:09:12,358 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:09:12,360 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:09:12,362 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:09:12,368 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 15:09:12,373 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 15:09:12,374 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 15:09:12,375 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 15:09:12,377 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 15:09:12,379 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 15:09:12,379 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:09:12,381 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:09:12,383 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:09:12,384 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:09:12,385 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:09:12,386 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:09:12,387 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:09:12,387 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:09:12,388 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:09:12,390 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:09:12,391 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:09:12,392 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_80b0de80-cacf-4159-9fd3-b45b47ab2211/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2020-12-01 15:09:12,458 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:09:12,459 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:09:12,462 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:09:12,462 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:09:12,463 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:09:12,463 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:09:12,463 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 15:09:12,463 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-01 15:09:12,464 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 15:09:12,464 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 15:09:12,465 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:09:12,465 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-12-01 15:09:12,466 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-12-01 15:09:12,466 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-12-01 15:09:12,466 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 15:09:12,466 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-01 15:09:12,467 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-01 15:09:12,467 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-01 15:09:12,467 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 15:09:12,467 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:09:12,468 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:09:12,468 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:09:12,468 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 15:09:12,468 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 15:09:12,468 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 15:09:12,469 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:09:12,469 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 15:09:12,469 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-12-01 15:09:12,469 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-12-01 15:09:12,470 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:09:12,470 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-01 15:09:12,470 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_80b0de80-cacf-4159-9fd3-b45b47ab2211/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_80b0de80-cacf-4159-9fd3-b45b47ab2211/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c5e00b9cd3876aa8df4263099f6b8339445d38f8 [2020-12-01 15:09:12,869 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:09:12,925 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:09:12,930 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:09:12,932 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:09:12,933 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:09:12,934 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_80b0de80-cacf-4159-9fd3-b45b47ab2211/bin/uautomizer/../../sv-benchmarks/c/array-memsafety-realloc/array-realloc-3.i [2020-12-01 15:09:13,022 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_80b0de80-cacf-4159-9fd3-b45b47ab2211/bin/uautomizer/data/b85a9d4e4/23ee181e10cf448cbf7ada61e27b401b/FLAGaa93af70c [2020-12-01 15:09:13,800 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:09:13,801 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_80b0de80-cacf-4159-9fd3-b45b47ab2211/sv-benchmarks/c/array-memsafety-realloc/array-realloc-3.i [2020-12-01 15:09:13,823 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_80b0de80-cacf-4159-9fd3-b45b47ab2211/bin/uautomizer/data/b85a9d4e4/23ee181e10cf448cbf7ada61e27b401b/FLAGaa93af70c [2020-12-01 15:09:14,040 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_80b0de80-cacf-4159-9fd3-b45b47ab2211/bin/uautomizer/data/b85a9d4e4/23ee181e10cf448cbf7ada61e27b401b [2020-12-01 15:09:14,043 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:09:14,045 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-12-01 15:09:14,047 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:09:14,047 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:09:14,056 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:09:14,058 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:09:14" (1/1) ... [2020-12-01 15:09:14,060 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f7b9a2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:09:14, skipping insertion in model container [2020-12-01 15:09:14,061 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:09:14" (1/1) ... [2020-12-01 15:09:14,070 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:09:14,137 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:09:14,473 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:09:14,494 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-12-01 15:09:14,521 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:09:14,598 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:09:14,605 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:09:14,649 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:09:14,745 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:09:14,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:09:14 WrapperNode [2020-12-01 15:09:14,745 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:09:14,747 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:09:14,747 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:09:14,747 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:09:14,762 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:09:14" (1/1) ... [2020-12-01 15:09:14,762 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:09:14" (1/1) ... [2020-12-01 15:09:14,785 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:09:14" (1/1) ... [2020-12-01 15:09:14,785 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:09:14" (1/1) ... [2020-12-01 15:09:14,819 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:09:14" (1/1) ... [2020-12-01 15:09:14,825 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:09:14" (1/1) ... [2020-12-01 15:09:14,830 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:09:14" (1/1) ... [2020-12-01 15:09:14,838 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:09:14,840 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:09:14,840 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:09:14,840 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:09:14,841 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:09:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_80b0de80-cacf-4159-9fd3-b45b47ab2211/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 15:09:14,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-12-01 15:09:14,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:09:14,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2020-12-01 15:09:14,942 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-12-01 15:09:14,944 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-12-01 15:09:14,944 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-12-01 15:09:14,945 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-12-01 15:09:14,945 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-12-01 15:09:14,945 INFO L138 BoogieDeclarations]: Found implementation of procedure expandArray [2020-12-01 15:09:14,945 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-12-01 15:09:14,946 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc [2020-12-01 15:09:14,946 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-12-01 15:09:14,946 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-12-01 15:09:14,947 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-12-01 15:09:14,947 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-12-01 15:09:14,947 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-12-01 15:09:14,947 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-12-01 15:09:14,947 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-12-01 15:09:14,947 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-12-01 15:09:14,948 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-12-01 15:09:14,948 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-12-01 15:09:14,948 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-12-01 15:09:14,948 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-12-01 15:09:14,948 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-12-01 15:09:14,948 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-12-01 15:09:14,949 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-12-01 15:09:14,949 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-12-01 15:09:14,949 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-12-01 15:09:14,949 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-12-01 15:09:14,949 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-12-01 15:09:14,949 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-12-01 15:09:14,950 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-12-01 15:09:14,950 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-12-01 15:09:14,950 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-12-01 15:09:14,950 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-12-01 15:09:14,950 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-12-01 15:09:14,950 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-12-01 15:09:14,950 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-12-01 15:09:14,951 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-12-01 15:09:14,951 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-12-01 15:09:14,951 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-12-01 15:09:14,951 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-12-01 15:09:14,951 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-12-01 15:09:14,951 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-12-01 15:09:14,952 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-12-01 15:09:14,952 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-12-01 15:09:14,953 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-12-01 15:09:14,953 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-12-01 15:09:14,953 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-12-01 15:09:14,953 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-12-01 15:09:14,953 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-12-01 15:09:14,953 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-12-01 15:09:14,955 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-12-01 15:09:14,955 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-12-01 15:09:14,955 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-12-01 15:09:14,955 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-12-01 15:09:14,955 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-12-01 15:09:14,956 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-12-01 15:09:14,956 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-12-01 15:09:14,956 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-12-01 15:09:14,956 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-12-01 15:09:14,957 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-12-01 15:09:14,957 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-12-01 15:09:14,957 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-12-01 15:09:14,957 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-12-01 15:09:14,958 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-12-01 15:09:14,960 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-12-01 15:09:14,960 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-12-01 15:09:14,960 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-12-01 15:09:14,960 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-12-01 15:09:14,961 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-12-01 15:09:14,961 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-12-01 15:09:14,961 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-12-01 15:09:14,961 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-12-01 15:09:14,961 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-12-01 15:09:14,961 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-12-01 15:09:14,961 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-12-01 15:09:14,962 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-12-01 15:09:14,962 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-12-01 15:09:14,962 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-12-01 15:09:14,963 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-12-01 15:09:14,963 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-12-01 15:09:14,963 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-12-01 15:09:14,963 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-12-01 15:09:14,964 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-12-01 15:09:14,964 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-12-01 15:09:14,964 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-12-01 15:09:14,964 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-12-01 15:09:14,964 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-12-01 15:09:14,964 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-12-01 15:09:14,964 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-12-01 15:09:14,965 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-12-01 15:09:14,965 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-12-01 15:09:14,965 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-12-01 15:09:14,965 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-12-01 15:09:14,965 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-12-01 15:09:14,965 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-12-01 15:09:14,965 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-12-01 15:09:14,966 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-12-01 15:09:14,966 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-12-01 15:09:14,966 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-12-01 15:09:14,966 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-12-01 15:09:14,966 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-12-01 15:09:14,966 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-12-01 15:09:14,966 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-12-01 15:09:14,967 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-12-01 15:09:14,967 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-12-01 15:09:14,967 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-12-01 15:09:14,967 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-12-01 15:09:14,967 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-12-01 15:09:14,968 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-12-01 15:09:14,968 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-12-01 15:09:14,969 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-12-01 15:09:14,969 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-12-01 15:09:14,969 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-12-01 15:09:14,969 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-12-01 15:09:14,970 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-12-01 15:09:14,970 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-12-01 15:09:14,970 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-12-01 15:09:14,970 INFO L130 BoogieDeclarations]: Found specification of procedure expandArray [2020-12-01 15:09:14,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc [2020-12-01 15:09:14,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-12-01 15:09:14,971 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-12-01 15:09:14,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-01 15:09:14,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-12-01 15:09:14,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:09:14,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2020-12-01 15:09:14,977 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-12-01 15:09:14,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 15:09:15,789 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:09:15,790 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-12-01 15:09:15,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:09:15 BoogieIcfgContainer [2020-12-01 15:09:15,792 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:09:15,794 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 15:09:15,794 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 15:09:15,798 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 15:09:15,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 03:09:14" (1/3) ... [2020-12-01 15:09:15,799 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f28981d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:09:15, skipping insertion in model container [2020-12-01 15:09:15,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:09:14" (2/3) ... [2020-12-01 15:09:15,799 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f28981d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:09:15, skipping insertion in model container [2020-12-01 15:09:15,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:09:15" (3/3) ... [2020-12-01 15:09:15,801 INFO L111 eAbstractionObserver]: Analyzing ICFG array-realloc-3.i [2020-12-01 15:09:15,818 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 15:09:15,823 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-12-01 15:09:15,836 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-12-01 15:09:15,862 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 15:09:15,862 INFO L378 AbstractCegarLoop]: Hoare is false [2020-12-01 15:09:15,862 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 15:09:15,862 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:09:15,862 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:09:15,863 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 15:09:15,863 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:09:15,863 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 15:09:15,878 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2020-12-01 15:09:15,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-01 15:09:15,888 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:09:15,889 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:09:15,889 INFO L429 AbstractCegarLoop]: === Iteration 1 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2020-12-01 15:09:15,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:09:15,896 INFO L82 PathProgramCache]: Analyzing trace with hash 451943323, now seen corresponding path program 1 times [2020-12-01 15:09:15,910 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 15:09:15,910 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1722317855] [2020-12-01 15:09:15,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_80b0de80-cacf-4159-9fd3-b45b47ab2211/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-12-01 15:09:16,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:09:16,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 15:09:16,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:09:16,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:09:16,233 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 15:09:16,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:09:16,258 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1722317855] [2020-12-01 15:09:16,259 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:09:16,259 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-12-01 15:09:16,260 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813880970] [2020-12-01 15:09:16,265 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:09:16,266 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 15:09:16,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:09:16,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:09:16,285 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 3 states. [2020-12-01 15:09:16,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:09:16,420 INFO L93 Difference]: Finished difference Result 35 states and 40 transitions. [2020-12-01 15:09:16,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:09:16,422 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-12-01 15:09:16,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:09:16,432 INFO L225 Difference]: With dead ends: 35 [2020-12-01 15:09:16,432 INFO L226 Difference]: Without dead ends: 31 [2020-12-01 15:09:16,434 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:09:16,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-12-01 15:09:16,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 26. [2020-12-01 15:09:16,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-12-01 15:09:16,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2020-12-01 15:09:16,480 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 8 [2020-12-01 15:09:16,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:09:16,481 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2020-12-01 15:09:16,481 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:09:16,482 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2020-12-01 15:09:16,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 15:09:16,482 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:09:16,483 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:09:16,697 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-01 15:09:16,698 INFO L429 AbstractCegarLoop]: === Iteration 2 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2020-12-01 15:09:16,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:09:16,699 INFO L82 PathProgramCache]: Analyzing trace with hash 1125341978, now seen corresponding path program 1 times [2020-12-01 15:09:16,700 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 15:09:16,700 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1602068930] [2020-12-01 15:09:16,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_80b0de80-cacf-4159-9fd3-b45b47ab2211/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-12-01 15:09:16,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:09:16,951 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-01 15:09:16,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:09:16,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:09:16,990 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 15:09:17,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:09:17,027 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1602068930] [2020-12-01 15:09:17,027 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:09:17,027 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-12-01 15:09:17,028 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275955117] [2020-12-01 15:09:17,029 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:09:17,030 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 15:09:17,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:09:17,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:09:17,034 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand 3 states. [2020-12-01 15:09:17,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:09:17,050 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2020-12-01 15:09:17,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:09:17,051 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-12-01 15:09:17,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:09:17,053 INFO L225 Difference]: With dead ends: 26 [2020-12-01 15:09:17,053 INFO L226 Difference]: Without dead ends: 26 [2020-12-01 15:09:17,054 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:09:17,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-12-01 15:09:17,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-12-01 15:09:17,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-12-01 15:09:17,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2020-12-01 15:09:17,065 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 9 [2020-12-01 15:09:17,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:09:17,065 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2020-12-01 15:09:17,066 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:09:17,066 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2020-12-01 15:09:17,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-01 15:09:17,067 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:09:17,067 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:09:17,279 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-01 15:09:17,280 INFO L429 AbstractCegarLoop]: === Iteration 3 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2020-12-01 15:09:17,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:09:17,282 INFO L82 PathProgramCache]: Analyzing trace with hash -285526799, now seen corresponding path program 1 times [2020-12-01 15:09:17,286 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 15:09:17,287 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [789560873] [2020-12-01 15:09:17,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_80b0de80-cacf-4159-9fd3-b45b47ab2211/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-12-01 15:09:17,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:09:17,583 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-01 15:09:17,585 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:09:17,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:09:17,776 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 15:09:17,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:09:17,983 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [789560873] [2020-12-01 15:09:17,984 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:09:17,984 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2020-12-01 15:09:17,984 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282350434] [2020-12-01 15:09:17,986 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-01 15:09:17,986 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 15:09:17,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-01 15:09:17,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-12-01 15:09:17,990 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 10 states. [2020-12-01 15:09:18,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:09:18,178 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2020-12-01 15:09:18,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-01 15:09:18,179 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-12-01 15:09:18,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:09:18,188 INFO L225 Difference]: With dead ends: 27 [2020-12-01 15:09:18,189 INFO L226 Difference]: Without dead ends: 27 [2020-12-01 15:09:18,192 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-12-01 15:09:18,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-12-01 15:09:18,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-12-01 15:09:18,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-12-01 15:09:18,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2020-12-01 15:09:18,203 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 16 [2020-12-01 15:09:18,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:09:18,204 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2020-12-01 15:09:18,204 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-01 15:09:18,204 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2020-12-01 15:09:18,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-01 15:09:18,207 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:09:18,207 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:09:18,425 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-01 15:09:18,425 INFO L429 AbstractCegarLoop]: === Iteration 4 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2020-12-01 15:09:18,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:09:18,426 INFO L82 PathProgramCache]: Analyzing trace with hash 1792130560, now seen corresponding path program 1 times [2020-12-01 15:09:18,426 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 15:09:18,427 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [482035902] [2020-12-01 15:09:18,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_80b0de80-cacf-4159-9fd3-b45b47ab2211/bin/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-12-01 15:09:18,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:09:18,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-01 15:09:18,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:09:18,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:09:18,805 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 15:09:18,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:09:18,881 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [482035902] [2020-12-01 15:09:18,882 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:09:18,882 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2020-12-01 15:09:18,882 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585110571] [2020-12-01 15:09:18,883 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-01 15:09:18,885 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 15:09:18,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-01 15:09:18,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-01 15:09:18,886 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 6 states. [2020-12-01 15:09:18,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:09:18,956 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2020-12-01 15:09:18,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-01 15:09:18,957 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-12-01 15:09:18,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:09:18,959 INFO L225 Difference]: With dead ends: 35 [2020-12-01 15:09:18,959 INFO L226 Difference]: Without dead ends: 35 [2020-12-01 15:09:18,959 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-12-01 15:09:18,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-12-01 15:09:18,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 30. [2020-12-01 15:09:18,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-12-01 15:09:18,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 32 transitions. [2020-12-01 15:09:18,966 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 32 transitions. Word has length 17 [2020-12-01 15:09:18,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:09:18,966 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 32 transitions. [2020-12-01 15:09:18,967 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-01 15:09:18,967 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2020-12-01 15:09:18,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-01 15:09:18,968 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:09:18,968 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:09:19,190 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-12-01 15:09:19,191 INFO L429 AbstractCegarLoop]: === Iteration 5 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2020-12-01 15:09:19,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:09:19,192 INFO L82 PathProgramCache]: Analyzing trace with hash 1793054081, now seen corresponding path program 1 times [2020-12-01 15:09:19,192 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 15:09:19,192 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1117334700] [2020-12-01 15:09:19,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_80b0de80-cacf-4159-9fd3-b45b47ab2211/bin/uautomizer/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-12-01 15:09:19,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:09:19,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-01 15:09:19,417 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:09:19,506 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 15:09:19,507 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 25 [2020-12-01 15:09:19,516 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-01 15:09:19,544 INFO L625 ElimStorePlain]: treesize reduction 12, result has 55.6 percent of original size [2020-12-01 15:09:19,549 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-01 15:09:19,550 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:9, output treesize:5 [2020-12-01 15:09:19,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:09:19,587 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 15:09:19,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:09:19,675 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1117334700] [2020-12-01 15:09:19,675 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:09:19,676 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2020-12-01 15:09:19,676 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487560694] [2020-12-01 15:09:19,678 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-01 15:09:19,678 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 15:09:19,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-01 15:09:19,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-01 15:09:19,680 INFO L87 Difference]: Start difference. First operand 30 states and 32 transitions. Second operand 5 states. [2020-12-01 15:09:19,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:09:19,771 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions. [2020-12-01 15:09:19,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-01 15:09:19,773 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-12-01 15:09:19,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:09:19,774 INFO L225 Difference]: With dead ends: 29 [2020-12-01 15:09:19,774 INFO L226 Difference]: Without dead ends: 29 [2020-12-01 15:09:19,775 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-01 15:09:19,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-12-01 15:09:19,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-12-01 15:09:19,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-12-01 15:09:19,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2020-12-01 15:09:19,782 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 17 [2020-12-01 15:09:19,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:09:19,783 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2020-12-01 15:09:19,783 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-01 15:09:19,783 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2020-12-01 15:09:19,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-01 15:09:19,784 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:09:19,784 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:09:19,989 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-12-01 15:09:19,989 INFO L429 AbstractCegarLoop]: === Iteration 6 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2020-12-01 15:09:19,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:09:19,990 INFO L82 PathProgramCache]: Analyzing trace with hash 1793054082, now seen corresponding path program 1 times [2020-12-01 15:09:19,990 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 15:09:19,990 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1441953218] [2020-12-01 15:09:19,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_80b0de80-cacf-4159-9fd3-b45b47ab2211/bin/uautomizer/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-12-01 15:09:20,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:09:20,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 12 conjunts are in the unsatisfiable core [2020-12-01 15:09:20,268 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:09:20,326 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-12-01 15:09:20,328 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-01 15:09:20,341 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 15:09:20,342 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-01 15:09:20,343 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:14 [2020-12-01 15:09:20,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:09:20,443 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 15:09:21,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:09:21,118 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1441953218] [2020-12-01 15:09:21,118 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:09:21,118 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2020-12-01 15:09:21,120 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3558050] [2020-12-01 15:09:21,120 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-01 15:09:21,121 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 15:09:21,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-01 15:09:21,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2020-12-01 15:09:21,123 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand 12 states. [2020-12-01 15:09:21,769 WARN L197 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 23 [2020-12-01 15:09:22,339 WARN L197 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 21 [2020-12-01 15:09:22,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:09:22,737 INFO L93 Difference]: Finished difference Result 76 states and 79 transitions. [2020-12-01 15:09:22,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-12-01 15:09:22,739 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 17 [2020-12-01 15:09:22,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:09:22,740 INFO L225 Difference]: With dead ends: 76 [2020-12-01 15:09:22,741 INFO L226 Difference]: Without dead ends: 74 [2020-12-01 15:09:22,741 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2020-12-01 15:09:22,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-12-01 15:09:22,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 48. [2020-12-01 15:09:22,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-12-01 15:09:22,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 53 transitions. [2020-12-01 15:09:22,750 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 53 transitions. Word has length 17 [2020-12-01 15:09:22,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:09:22,751 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 53 transitions. [2020-12-01 15:09:22,751 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-01 15:09:22,751 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 53 transitions. [2020-12-01 15:09:22,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-12-01 15:09:22,765 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:09:22,766 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:09:22,978 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-12-01 15:09:22,982 INFO L429 AbstractCegarLoop]: === Iteration 7 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2020-12-01 15:09:22,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:09:22,983 INFO L82 PathProgramCache]: Analyzing trace with hash 494948438, now seen corresponding path program 1 times [2020-12-01 15:09:22,983 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 15:09:22,983 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2031210701] [2020-12-01 15:09:22,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_80b0de80-cacf-4159-9fd3-b45b47ab2211/bin/uautomizer/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2020-12-01 15:09:23,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:09:23,231 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:09:23,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:09:23,310 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:09:23,359 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-12-01 15:09:23,359 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-01 15:09:23,570 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-12-01 15:09:23,592 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2020-12-01 15:09:23,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 03:09:23 BoogieIcfgContainer [2020-12-01 15:09:23,616 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 15:09:23,617 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 15:09:23,617 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 15:09:23,618 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 15:09:23,618 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:09:15" (3/4) ... [2020-12-01 15:09:23,623 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-01 15:09:23,623 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 15:09:23,624 INFO L168 Benchmark]: Toolchain (without parser) took 9578.33 ms. Allocated memory was 62.9 MB in the beginning and 121.6 MB in the end (delta: 58.7 MB). Free memory was 41.8 MB in the beginning and 84.2 MB in the end (delta: -42.4 MB). Peak memory consumption was 20.8 MB. Max. memory is 16.1 GB. [2020-12-01 15:09:23,625 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 62.9 MB. Free memory is still 43.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:09:23,626 INFO L168 Benchmark]: CACSL2BoogieTranslator took 698.92 ms. Allocated memory is still 62.9 MB. Free memory was 41.6 MB in the beginning and 32.6 MB in the end (delta: 9.1 MB). Peak memory consumption was 17.9 MB. Max. memory is 16.1 GB. [2020-12-01 15:09:23,626 INFO L168 Benchmark]: Boogie Preprocessor took 91.73 ms. Allocated memory is still 62.9 MB. Free memory was 32.4 MB in the beginning and 29.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:09:23,627 INFO L168 Benchmark]: RCFGBuilder took 952.49 ms. Allocated memory was 62.9 MB in the beginning and 83.9 MB in the end (delta: 21.0 MB). Free memory was 29.8 MB in the beginning and 45.6 MB in the end (delta: -15.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 16.1 GB. [2020-12-01 15:09:23,628 INFO L168 Benchmark]: TraceAbstraction took 7822.63 ms. Allocated memory was 83.9 MB in the beginning and 121.6 MB in the end (delta: 37.7 MB). Free memory was 45.2 MB in the beginning and 84.2 MB in the end (delta: -39.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:09:23,629 INFO L168 Benchmark]: Witness Printer took 5.74 ms. Allocated memory is still 121.6 MB. Free memory is still 84.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:09:23,632 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 62.9 MB. Free memory is still 43.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 698.92 ms. Allocated memory is still 62.9 MB. Free memory was 41.6 MB in the beginning and 32.6 MB in the end (delta: 9.1 MB). Peak memory consumption was 17.9 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 91.73 ms. Allocated memory is still 62.9 MB. Free memory was 32.4 MB in the beginning and 29.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 952.49 ms. Allocated memory was 62.9 MB in the beginning and 83.9 MB in the end (delta: 21.0 MB). Free memory was 29.8 MB in the beginning and 45.6 MB in the end (delta: -15.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 7822.63 ms. Allocated memory was 83.9 MB in the beginning and 121.6 MB in the end (delta: 37.7 MB). Free memory was 45.2 MB in the beginning and 84.2 MB in the end (delta: -39.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 5.74 ms. Allocated memory is still 121.6 MB. Free memory is still 84.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 7.7s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 145 SDtfs, 162 SDslu, 231 SDs, 0 SdLazy, 194 SolverSat, 55 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 172 GetRequests, 134 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 1.9s 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: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 108 NumberOfCodeBlocks, 108 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 156 ConstructedInterpolants, 0 QuantifiedInterpolants, 8533 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, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...