./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 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/array-memsafety-realloc/array-realloc-3.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/array-memsafety-realloc/array-realloc-3.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c5e00b9cd3876aa8df4263099f6b8339445d38f8 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 05:52:10,758 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 05:52:10,762 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 05:52:10,803 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 05:52:10,804 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 05:52:10,813 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 05:52:10,815 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 05:52:10,819 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 05:52:10,822 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 05:52:10,825 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 05:52:10,827 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 05:52:10,828 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 05:52:10,828 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 05:52:10,831 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 05:52:10,833 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 05:52:10,834 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 05:52:10,836 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 05:52:10,837 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 05:52:10,839 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 05:52:10,846 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 05:52:10,849 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 05:52:10,850 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 05:52:10,853 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 05:52:10,854 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 05:52:10,867 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 05:52:10,867 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 05:52:10,867 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 05:52:10,868 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 05:52:10,868 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 05:52:10,869 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 05:52:10,869 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 05:52:10,870 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 05:52:10,871 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 05:52:10,873 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 05:52:10,874 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 05:52:10,875 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 05:52:10,875 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 05:52:10,875 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 05:52:10,876 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 05:52:10,880 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 05:52:10,881 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 05:52:10,882 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-10-20 05:52:10,921 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 05:52:10,921 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 05:52:10,924 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 05:52:10,924 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 05:52:10,924 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 05:52:10,925 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 05:52:10,925 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 05:52:10,925 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 05:52:10,925 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 05:52:10,926 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 05:52:10,927 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 05:52:10,927 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-20 05:52:10,928 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-20 05:52:10,928 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-20 05:52:10,928 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 05:52:10,929 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-20 05:52:10,929 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 05:52:10,929 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 05:52:10,930 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 05:52:10,930 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 05:52:10,930 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 05:52:10,931 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 05:52:10,931 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 05:52:10,931 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 05:52:10,932 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 05:52:10,932 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 05:52:10,932 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 05:52:10,932 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 05:52:10,932 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 [2020-10-20 05:52:11,201 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 05:52:11,219 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 05:52:11,223 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 05:52:11,226 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 05:52:11,227 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 05:52:11,228 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety-realloc/array-realloc-3.i [2020-10-20 05:52:11,287 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22e8e16d8/19d7b693221c4c558eee3918ccc7cd2d/FLAG801fe7159 [2020-10-20 05:52:11,882 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 05:52:11,884 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety-realloc/array-realloc-3.i [2020-10-20 05:52:11,902 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22e8e16d8/19d7b693221c4c558eee3918ccc7cd2d/FLAG801fe7159 [2020-10-20 05:52:12,135 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22e8e16d8/19d7b693221c4c558eee3918ccc7cd2d [2020-10-20 05:52:12,138 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 05:52:12,145 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-20 05:52:12,146 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 05:52:12,146 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 05:52:12,150 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 05:52:12,151 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:52:12" (1/1) ... [2020-10-20 05:52:12,154 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d72ae6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:52:12, skipping insertion in model container [2020-10-20 05:52:12,154 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:52:12" (1/1) ... [2020-10-20 05:52:12,162 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 05:52:12,196 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 05:52:12,566 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 05:52:12,587 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) [2020-10-20 05:52:12,588 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@66d6e264 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:52:12, skipping insertion in model container [2020-10-20 05:52:12,588 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 05:52:12,589 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2020-10-20 05:52:12,592 INFO L168 Benchmark]: Toolchain (without parser) took 451.83 ms. Allocated memory was 42.5 MB in the beginning and 43.0 MB in the end (delta: 524.3 kB). Free memory was 19.4 MB in the beginning and 17.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 14.3 GB. [2020-10-20 05:52:12,594 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 32.0 MB. Free memory was 9.0 MB in the beginning and 9.0 MB in the end (delta: 47.5 kB). Peak memory consumption was 47.5 kB. Max. memory is 14.3 GB. [2020-10-20 05:52:12,595 INFO L168 Benchmark]: CACSL2BoogieTranslator took 442.91 ms. Allocated memory was 42.5 MB in the beginning and 43.0 MB in the end (delta: 524.3 kB). Free memory was 18.5 MB in the beginning and 17.5 MB in the end (delta: 1.0 MB). Peak memory consumption was 9.1 MB. Max. memory is 14.3 GB. [2020-10-20 05:52:12,598 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 32.0 MB. Free memory was 9.0 MB in the beginning and 9.0 MB in the end (delta: 47.5 kB). Peak memory consumption was 47.5 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 442.91 ms. Allocated memory was 42.5 MB in the beginning and 43.0 MB in the end (delta: 524.3 kB). Free memory was 18.5 MB in the beginning and 17.5 MB in the end (delta: 1.0 MB). Peak memory consumption was 9.1 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 515]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 05:52:14,420 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 05:52:14,423 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 05:52:14,446 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 05:52:14,447 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 05:52:14,448 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 05:52:14,449 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 05:52:14,462 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 05:52:14,464 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 05:52:14,467 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 05:52:14,468 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 05:52:14,473 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 05:52:14,473 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 05:52:14,477 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 05:52:14,478 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 05:52:14,479 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 05:52:14,483 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 05:52:14,486 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 05:52:14,488 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 05:52:14,491 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 05:52:14,493 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 05:52:14,494 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 05:52:14,495 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 05:52:14,497 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 05:52:14,501 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 05:52:14,502 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 05:52:14,502 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 05:52:14,505 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 05:52:14,506 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 05:52:14,507 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 05:52:14,507 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 05:52:14,509 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 05:52:14,510 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 05:52:14,511 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 05:52:14,520 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 05:52:14,521 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 05:52:14,521 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 05:52:14,522 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 05:52:14,522 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 05:52:14,523 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 05:52:14,524 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 05:52:14,525 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2020-10-20 05:52:14,566 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 05:52:14,566 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 05:52:14,569 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 05:52:14,569 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 05:52:14,569 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 05:52:14,570 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 05:52:14,570 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 05:52:14,570 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 05:52:14,570 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 05:52:14,570 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 05:52:14,571 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 05:52:14,572 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-20 05:52:14,572 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-20 05:52:14,572 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-20 05:52:14,572 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 05:52:14,573 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-20 05:52:14,573 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-20 05:52:14,573 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-20 05:52:14,573 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 05:52:14,573 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 05:52:14,574 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 05:52:14,574 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 05:52:14,574 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 05:52:14,574 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 05:52:14,575 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 05:52:14,575 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 05:52:14,575 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 05:52:14,575 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-20 05:52:14,575 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-20 05:52:14,576 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 05:52:14,576 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-20 05:52:14,576 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 [2020-10-20 05:52:14,809 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 05:52:14,823 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 05:52:14,830 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 05:52:14,834 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 05:52:14,834 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 05:52:14,835 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety-realloc/array-realloc-3.i [2020-10-20 05:52:14,913 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aab58fedf/e9bba831bb1345afa2c09e25c3c8bfc4/FLAG8685dc675 [2020-10-20 05:52:15,448 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 05:52:15,449 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety-realloc/array-realloc-3.i [2020-10-20 05:52:15,465 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aab58fedf/e9bba831bb1345afa2c09e25c3c8bfc4/FLAG8685dc675 [2020-10-20 05:52:15,714 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aab58fedf/e9bba831bb1345afa2c09e25c3c8bfc4 [2020-10-20 05:52:15,717 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 05:52:15,724 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-20 05:52:15,725 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 05:52:15,726 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 05:52:15,729 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 05:52:15,730 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:52:15" (1/1) ... [2020-10-20 05:52:15,733 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33334cb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:52:15, skipping insertion in model container [2020-10-20 05:52:15,734 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:52:15" (1/1) ... [2020-10-20 05:52:15,741 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 05:52:15,781 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 05:52:16,203 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 05:52:16,225 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-10-20 05:52:16,244 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 05:52:16,286 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 05:52:16,293 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 05:52:16,326 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 05:52:16,396 INFO L208 MainTranslator]: Completed translation [2020-10-20 05:52:16,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:52:16 WrapperNode [2020-10-20 05:52:16,398 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 05:52:16,399 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 05:52:16,399 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 05:52:16,399 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 05:52:16,414 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:52:16" (1/1) ... [2020-10-20 05:52:16,414 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:52:16" (1/1) ... [2020-10-20 05:52:16,438 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:52:16" (1/1) ... [2020-10-20 05:52:16,439 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:52:16" (1/1) ... [2020-10-20 05:52:16,462 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:52:16" (1/1) ... [2020-10-20 05:52:16,472 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:52:16" (1/1) ... [2020-10-20 05:52:16,479 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:52:16" (1/1) ... [2020-10-20 05:52:16,490 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 05:52:16,492 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 05:52:16,492 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 05:52:16,492 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 05:52:16,493 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:52:16" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-20 05:52:16,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-20 05:52:16,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 05:52:16,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2020-10-20 05:52:16,569 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-20 05:52:16,569 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-20 05:52:16,569 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-10-20 05:52:16,570 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-10-20 05:52:16,570 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-10-20 05:52:16,570 INFO L138 BoogieDeclarations]: Found implementation of procedure expandArray [2020-10-20 05:52:16,570 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-20 05:52:16,570 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc [2020-10-20 05:52:16,570 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-20 05:52:16,570 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-20 05:52:16,570 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-20 05:52:16,571 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-20 05:52:16,571 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-20 05:52:16,571 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-20 05:52:16,571 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-20 05:52:16,571 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-20 05:52:16,571 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-20 05:52:16,571 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-20 05:52:16,572 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-20 05:52:16,572 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-20 05:52:16,572 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-20 05:52:16,572 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-20 05:52:16,573 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-20 05:52:16,574 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-20 05:52:16,574 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-20 05:52:16,574 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-20 05:52:16,574 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-10-20 05:52:16,575 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-10-20 05:52:16,575 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-10-20 05:52:16,575 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-20 05:52:16,575 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-20 05:52:16,575 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-20 05:52:16,576 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-20 05:52:16,576 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-20 05:52:16,576 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-20 05:52:16,576 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-20 05:52:16,576 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-20 05:52:16,577 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-20 05:52:16,577 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-20 05:52:16,577 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-20 05:52:16,577 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-20 05:52:16,577 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-20 05:52:16,577 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-20 05:52:16,577 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-20 05:52:16,578 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-20 05:52:16,578 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-20 05:52:16,578 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-20 05:52:16,578 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-20 05:52:16,578 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-20 05:52:16,578 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-20 05:52:16,579 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-20 05:52:16,579 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-20 05:52:16,579 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-20 05:52:16,579 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-20 05:52:16,579 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-20 05:52:16,579 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-20 05:52:16,579 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-20 05:52:16,580 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-20 05:52:16,580 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-20 05:52:16,580 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-20 05:52:16,580 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-20 05:52:16,580 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-20 05:52:16,580 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-20 05:52:16,581 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-20 05:52:16,581 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-20 05:52:16,581 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-20 05:52:16,581 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-20 05:52:16,581 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-20 05:52:16,581 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-20 05:52:16,581 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-20 05:52:16,582 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-20 05:52:16,583 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-20 05:52:16,583 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-20 05:52:16,583 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-20 05:52:16,583 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-20 05:52:16,583 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-20 05:52:16,583 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-20 05:52:16,584 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-20 05:52:16,584 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-20 05:52:16,584 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-20 05:52:16,584 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-20 05:52:16,584 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-20 05:52:16,584 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-20 05:52:16,584 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-20 05:52:16,585 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-20 05:52:16,585 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-20 05:52:16,585 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-20 05:52:16,585 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-20 05:52:16,585 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-20 05:52:16,585 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-20 05:52:16,585 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-20 05:52:16,585 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-20 05:52:16,586 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-20 05:52:16,586 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-20 05:52:16,586 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-20 05:52:16,586 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-20 05:52:16,586 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-20 05:52:16,586 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-20 05:52:16,586 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-20 05:52:16,586 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-20 05:52:16,586 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-20 05:52:16,587 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-20 05:52:16,587 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-20 05:52:16,587 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-20 05:52:16,587 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-20 05:52:16,587 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-20 05:52:16,587 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-20 05:52:16,587 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-20 05:52:16,587 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-20 05:52:16,588 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-20 05:52:16,588 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-20 05:52:16,588 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-20 05:52:16,588 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-20 05:52:16,588 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-20 05:52:16,588 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-20 05:52:16,588 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-20 05:52:16,589 INFO L130 BoogieDeclarations]: Found specification of procedure expandArray [2020-10-20 05:52:16,589 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc [2020-10-20 05:52:16,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-20 05:52:16,589 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-20 05:52:16,589 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-20 05:52:16,589 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-20 05:52:16,589 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 05:52:16,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2020-10-20 05:52:16,590 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-20 05:52:16,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 05:52:17,161 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 05:52:17,161 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-20 05:52:17,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:52:17 BoogieIcfgContainer [2020-10-20 05:52:17,163 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 05:52:17,165 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 05:52:17,165 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 05:52:17,168 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 05:52:17,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 05:52:15" (1/3) ... [2020-10-20 05:52:17,169 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36688fc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:52:17, skipping insertion in model container [2020-10-20 05:52:17,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:52:16" (2/3) ... [2020-10-20 05:52:17,170 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36688fc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:52:17, skipping insertion in model container [2020-10-20 05:52:17,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:52:17" (3/3) ... [2020-10-20 05:52:17,172 INFO L111 eAbstractionObserver]: Analyzing ICFG array-realloc-3.i [2020-10-20 05:52:17,183 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 05:52:17,191 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-10-20 05:52:17,204 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-20 05:52:17,220 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 05:52:17,220 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-20 05:52:17,220 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 05:52:17,220 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 05:52:17,221 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 05:52:17,221 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 05:52:17,221 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 05:52:17,221 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 05:52:17,233 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2020-10-20 05:52:17,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-20 05:52:17,242 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:52:17,243 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:52:17,243 INFO L429 AbstractCegarLoop]: === Iteration 1 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2020-10-20 05:52:17,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:52:17,249 INFO L82 PathProgramCache]: Analyzing trace with hash 451943323, now seen corresponding path program 1 times [2020-10-20 05:52:17,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:52:17,259 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [355351766] [2020-10-20 05:52:17,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-20 05:52:17,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:52:17,465 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 05:52:17,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:52:17,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:52:17,514 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:52:17,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:52:17,530 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [355351766] [2020-10-20 05:52:17,531 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:52:17,531 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-20 05:52:17,532 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724852147] [2020-10-20 05:52:17,537 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 05:52:17,538 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:52:17,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 05:52:17,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 05:52:17,552 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 3 states. [2020-10-20 05:52:17,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:52:17,657 INFO L93 Difference]: Finished difference Result 35 states and 40 transitions. [2020-10-20 05:52:17,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 05:52:17,659 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-20 05:52:17,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:52:17,670 INFO L225 Difference]: With dead ends: 35 [2020-10-20 05:52:17,670 INFO L226 Difference]: Without dead ends: 31 [2020-10-20 05:52:17,672 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 [2020-10-20 05:52:17,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-10-20 05:52:17,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 26. [2020-10-20 05:52:17,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-10-20 05:52:17,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2020-10-20 05:52:17,717 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 8 [2020-10-20 05:52:17,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:52:17,718 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2020-10-20 05:52:17,718 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 05:52:17,718 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2020-10-20 05:52:17,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-20 05:52:17,719 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:52:17,719 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:52:17,933 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-20 05:52:17,933 INFO L429 AbstractCegarLoop]: === Iteration 2 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2020-10-20 05:52:17,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:52:17,934 INFO L82 PathProgramCache]: Analyzing trace with hash 1125341978, now seen corresponding path program 1 times [2020-10-20 05:52:17,935 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:52:17,936 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [318458412] [2020-10-20 05:52:17,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-20 05:52:18,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:52:18,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-20 05:52:18,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:52:18,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:52:18,102 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:52:18,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:52:18,112 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [318458412] [2020-10-20 05:52:18,113 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:52:18,113 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-10-20 05:52:18,113 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924623602] [2020-10-20 05:52:18,115 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 05:52:18,126 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:52:18,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 05:52:18,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 05:52:18,127 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand 3 states. [2020-10-20 05:52:18,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:52:18,137 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2020-10-20 05:52:18,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 05:52:18,138 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-20 05:52:18,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:52:18,139 INFO L225 Difference]: With dead ends: 26 [2020-10-20 05:52:18,140 INFO L226 Difference]: Without dead ends: 26 [2020-10-20 05:52:18,141 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 [2020-10-20 05:52:18,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-10-20 05:52:18,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-10-20 05:52:18,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-10-20 05:52:18,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2020-10-20 05:52:18,150 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 9 [2020-10-20 05:52:18,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:52:18,150 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2020-10-20 05:52:18,151 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 05:52:18,151 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2020-10-20 05:52:18,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-20 05:52:18,152 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:52:18,152 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:52:18,366 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-20 05:52:18,367 INFO L429 AbstractCegarLoop]: === Iteration 3 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2020-10-20 05:52:18,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:52:18,367 INFO L82 PathProgramCache]: Analyzing trace with hash -285526799, now seen corresponding path program 1 times [2020-10-20 05:52:18,368 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:52:18,368 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1605788106] [2020-10-20 05:52:18,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-20 05:52:18,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:52:18,501 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-20 05:52:18,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:52:18,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:52:18,616 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:52:18,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:52:18,719 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1605788106] [2020-10-20 05:52:18,719 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:52:18,720 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2020-10-20 05:52:18,720 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922950689] [2020-10-20 05:52:18,721 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-20 05:52:18,721 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:52:18,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-20 05:52:18,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-20 05:52:18,722 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 10 states. [2020-10-20 05:52:18,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:52:18,862 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2020-10-20 05:52:18,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 05:52:18,862 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-10-20 05:52:18,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:52:18,863 INFO L225 Difference]: With dead ends: 27 [2020-10-20 05:52:18,863 INFO L226 Difference]: Without dead ends: 27 [2020-10-20 05:52:18,864 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-10-20 05:52:18,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-10-20 05:52:18,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-10-20 05:52:18,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-10-20 05:52:18,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2020-10-20 05:52:18,869 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 16 [2020-10-20 05:52:18,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:52:18,869 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2020-10-20 05:52:18,869 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-20 05:52:18,869 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2020-10-20 05:52:18,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-20 05:52:18,870 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:52:18,870 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:52:19,079 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-20 05:52:19,080 INFO L429 AbstractCegarLoop]: === Iteration 4 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2020-10-20 05:52:19,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:52:19,081 INFO L82 PathProgramCache]: Analyzing trace with hash 1792130560, now seen corresponding path program 1 times [2020-10-20 05:52:19,082 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:52:19,083 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1552004959] [2020-10-20 05:52:19,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-20 05:52:19,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:52:19,193 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-20 05:52:19,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:52:19,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:52:19,264 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:52:19,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:52:19,292 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1552004959] [2020-10-20 05:52:19,293 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:52:19,293 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2020-10-20 05:52:19,293 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917984384] [2020-10-20 05:52:19,294 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 05:52:19,294 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:52:19,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 05:52:19,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-20 05:52:19,295 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 6 states. [2020-10-20 05:52:19,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:52:19,347 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2020-10-20 05:52:19,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 05:52:19,347 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-10-20 05:52:19,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:52:19,349 INFO L225 Difference]: With dead ends: 35 [2020-10-20 05:52:19,349 INFO L226 Difference]: Without dead ends: 35 [2020-10-20 05:52:19,349 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 [2020-10-20 05:52:19,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-10-20 05:52:19,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 30. [2020-10-20 05:52:19,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-20 05:52:19,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 32 transitions. [2020-10-20 05:52:19,355 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 32 transitions. Word has length 17 [2020-10-20 05:52:19,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:52:19,356 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 32 transitions. [2020-10-20 05:52:19,356 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 05:52:19,356 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2020-10-20 05:52:19,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-20 05:52:19,358 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:52:19,358 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:52:19,571 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-10-20 05:52:19,572 INFO L429 AbstractCegarLoop]: === Iteration 5 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2020-10-20 05:52:19,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:52:19,572 INFO L82 PathProgramCache]: Analyzing trace with hash 1793054081, now seen corresponding path program 1 times [2020-10-20 05:52:19,573 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:52:19,573 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [64057063] [2020-10-20 05:52:19,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-20 05:52:19,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:52:19,721 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 05:52:19,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:52:19,780 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:52:19,781 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 25 [2020-10-20 05:52:19,781 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:52:19,802 INFO L625 ElimStorePlain]: treesize reduction 10, result has 60.0 percent of original size [2020-10-20 05:52:19,804 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 05:52:19,804 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:9, output treesize:5 [2020-10-20 05:52:19,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:52:19,823 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:52:19,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:52:19,858 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [64057063] [2020-10-20 05:52:19,858 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:52:19,858 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2020-10-20 05:52:19,858 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142776889] [2020-10-20 05:52:19,859 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 05:52:19,859 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:52:19,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 05:52:19,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 05:52:19,859 INFO L87 Difference]: Start difference. First operand 30 states and 32 transitions. Second operand 5 states. [2020-10-20 05:52:19,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:52:19,930 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions. [2020-10-20 05:52:19,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 05:52:19,931 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-10-20 05:52:19,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:52:19,932 INFO L225 Difference]: With dead ends: 29 [2020-10-20 05:52:19,932 INFO L226 Difference]: Without dead ends: 29 [2020-10-20 05:52:19,933 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 [2020-10-20 05:52:19,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-10-20 05:52:19,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-10-20 05:52:19,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-10-20 05:52:19,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2020-10-20 05:52:19,939 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 17 [2020-10-20 05:52:19,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:52:19,939 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2020-10-20 05:52:19,939 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 05:52:19,940 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2020-10-20 05:52:19,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-20 05:52:19,940 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:52:19,941 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:52:20,160 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-10-20 05:52:20,161 INFO L429 AbstractCegarLoop]: === Iteration 6 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2020-10-20 05:52:20,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:52:20,161 INFO L82 PathProgramCache]: Analyzing trace with hash 1793054082, now seen corresponding path program 1 times [2020-10-20 05:52:20,162 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:52:20,162 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1776888966] [2020-10-20 05:52:20,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-20 05:52:20,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:52:20,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-20 05:52:20,281 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:52:20,309 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-10-20 05:52:20,309 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:52:20,321 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:52:20,322 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 05:52:20,322 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:14 [2020-10-20 05:52:20,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:52:20,416 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:52:20,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:52:20,891 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1776888966] [2020-10-20 05:52:20,891 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:52:20,891 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2020-10-20 05:52:20,891 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682066102] [2020-10-20 05:52:20,892 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-20 05:52:20,892 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:52:20,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-20 05:52:20,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2020-10-20 05:52:20,894 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand 12 states. [2020-10-20 05:52:21,402 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 23 [2020-10-20 05:52:21,853 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 21 [2020-10-20 05:52:22,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:52:22,216 INFO L93 Difference]: Finished difference Result 76 states and 79 transitions. [2020-10-20 05:52:22,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-20 05:52:22,218 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 17 [2020-10-20 05:52:22,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:52:22,220 INFO L225 Difference]: With dead ends: 76 [2020-10-20 05:52:22,220 INFO L226 Difference]: Without dead ends: 74 [2020-10-20 05:52:22,221 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2020-10-20 05:52:22,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-10-20 05:52:22,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 48. [2020-10-20 05:52:22,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-10-20 05:52:22,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 53 transitions. [2020-10-20 05:52:22,229 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 53 transitions. Word has length 17 [2020-10-20 05:52:22,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:52:22,229 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 53 transitions. [2020-10-20 05:52:22,229 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-20 05:52:22,229 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 53 transitions. [2020-10-20 05:52:22,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-20 05:52:22,230 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:52:22,230 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] [2020-10-20 05:52:22,441 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-10-20 05:52:22,442 INFO L429 AbstractCegarLoop]: === Iteration 7 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2020-10-20 05:52:22,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:52:22,443 INFO L82 PathProgramCache]: Analyzing trace with hash 494948438, now seen corresponding path program 1 times [2020-10-20 05:52:22,444 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:52:22,444 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [365083397] [2020-10-20 05:52:22,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-20 05:52:22,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 05:52:22,569 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 05:52:22,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 05:52:22,628 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 05:52:22,670 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-10-20 05:52:22,671 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 05:52:22,871 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-10-20 05:52:22,893 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2020-10-20 05:52:22,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 05:52:22 BoogieIcfgContainer [2020-10-20 05:52:22,913 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 05:52:22,914 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 05:52:22,914 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 05:52:22,914 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 05:52:22,915 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:52:17" (3/4) ... [2020-10-20 05:52:22,918 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 05:52:22,918 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 05:52:22,920 INFO L168 Benchmark]: Toolchain (without parser) took 7201.24 ms. Allocated memory was 44.0 MB in the beginning and 72.4 MB in the end (delta: 28.3 MB). Free memory was 25.2 MB in the beginning and 20.0 MB in the end (delta: 5.2 MB). Peak memory consumption was 33.5 MB. Max. memory is 14.3 GB. [2020-10-20 05:52:22,921 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 35.1 MB. Free memory was 7.7 MB in the beginning and 7.6 MB in the end (delta: 38.1 kB). Peak memory consumption was 38.1 kB. Max. memory is 14.3 GB. [2020-10-20 05:52:22,922 INFO L168 Benchmark]: CACSL2BoogieTranslator took 673.46 ms. Allocated memory was 44.0 MB in the beginning and 45.6 MB in the end (delta: 1.6 MB). Free memory was 24.3 MB in the beginning and 11.6 MB in the end (delta: 12.7 MB). Peak memory consumption was 15.5 MB. Max. memory is 14.3 GB. [2020-10-20 05:52:22,923 INFO L168 Benchmark]: Boogie Preprocessor took 92.28 ms. Allocated memory was 45.6 MB in the beginning and 47.7 MB in the end (delta: 2.1 MB). Free memory was 11.6 MB in the beginning and 27.6 MB in the end (delta: -16.1 MB). Peak memory consumption was 1.3 MB. Max. memory is 14.3 GB. [2020-10-20 05:52:22,923 INFO L168 Benchmark]: RCFGBuilder took 671.78 ms. Allocated memory was 47.7 MB in the beginning and 49.3 MB in the end (delta: 1.6 MB). Free memory was 27.6 MB in the beginning and 18.9 MB in the end (delta: 8.7 MB). Peak memory consumption was 18.5 MB. Max. memory is 14.3 GB. [2020-10-20 05:52:22,924 INFO L168 Benchmark]: TraceAbstraction took 5748.69 ms. Allocated memory was 49.3 MB in the beginning and 72.4 MB in the end (delta: 23.1 MB). Free memory was 18.6 MB in the beginning and 20.8 MB in the end (delta: -2.2 MB). Peak memory consumption was 20.8 MB. Max. memory is 14.3 GB. [2020-10-20 05:52:22,925 INFO L168 Benchmark]: Witness Printer took 4.82 ms. Allocated memory is still 72.4 MB. Free memory was 20.8 MB in the beginning and 20.0 MB in the end (delta: 791.9 kB). Peak memory consumption was 791.9 kB. Max. memory is 14.3 GB. [2020-10-20 05:52:22,930 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 35.1 MB. Free memory was 7.7 MB in the beginning and 7.6 MB in the end (delta: 38.1 kB). Peak memory consumption was 38.1 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 673.46 ms. Allocated memory was 44.0 MB in the beginning and 45.6 MB in the end (delta: 1.6 MB). Free memory was 24.3 MB in the beginning and 11.6 MB in the end (delta: 12.7 MB). Peak memory consumption was 15.5 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 92.28 ms. Allocated memory was 45.6 MB in the beginning and 47.7 MB in the end (delta: 2.1 MB). Free memory was 11.6 MB in the beginning and 27.6 MB in the end (delta: -16.1 MB). Peak memory consumption was 1.3 MB. Max. memory is 14.3 GB. * RCFGBuilder took 671.78 ms. Allocated memory was 47.7 MB in the beginning and 49.3 MB in the end (delta: 1.6 MB). Free memory was 27.6 MB in the beginning and 18.9 MB in the end (delta: 8.7 MB). Peak memory consumption was 18.5 MB. Max. memory is 14.3 GB. * TraceAbstraction took 5748.69 ms. Allocated memory was 49.3 MB in the beginning and 72.4 MB in the end (delta: 23.1 MB). Free memory was 18.6 MB in the beginning and 20.8 MB in the end (delta: -2.2 MB). Peak memory consumption was 20.8 MB. Max. memory is 14.3 GB. * Witness Printer took 4.82 ms. Allocated memory is still 72.4 MB. Free memory was 20.8 MB in the beginning and 20.0 MB in the end (delta: 791.9 kB). Peak memory consumption was 791.9 kB. Max. memory is 14.3 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: 5.6s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 1.7s, 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, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 172 GetRequests, 134 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=48occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 36 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s 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...