./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/array-memsafety-realloc/array-realloc-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version f470102c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -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-1.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 ef75293aeb91e37969e4557310245e0c38a479cd ............................................................................................................................. 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 -Xmx12G -Xms1G -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-1.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 ef75293aeb91e37969e4557310245e0c38a479cd .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-free) --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-11-28 20:06:24,220 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 20:06:24,223 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 20:06:24,242 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 20:06:24,242 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 20:06:24,245 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 20:06:24,247 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 20:06:24,257 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 20:06:24,262 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 20:06:24,266 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 20:06:24,267 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 20:06:24,269 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 20:06:24,270 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 20:06:24,273 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 20:06:24,274 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 20:06:24,275 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 20:06:24,277 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 20:06:24,278 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 20:06:24,281 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 20:06:24,285 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 20:06:24,290 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 20:06:24,295 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 20:06:24,296 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 20:06:24,297 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 20:06:24,299 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 20:06:24,300 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 20:06:24,300 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 20:06:24,301 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 20:06:24,301 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 20:06:24,302 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 20:06:24,303 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 20:06:24,304 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 20:06:24,304 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 20:06:24,305 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 20:06:24,306 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 20:06:24,306 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 20:06:24,307 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 20:06:24,308 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 20:06:24,308 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 20:06:24,309 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 20:06:24,310 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 20:06:24,310 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-11-28 20:06:24,325 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 20:06:24,325 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 20:06:24,326 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 20:06:24,327 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 20:06:24,327 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 20:06:24,327 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 20:06:24,328 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 20:06:24,328 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 20:06:24,328 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 20:06:24,328 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 20:06:24,329 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 20:06:24,329 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-28 20:06:24,329 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-28 20:06:24,329 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-28 20:06:24,330 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 20:06:24,330 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-28 20:06:24,330 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 20:06:24,331 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 20:06:24,331 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 20:06:24,331 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 20:06:24,331 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 20:06:24,332 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 20:06:24,332 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 20:06:24,332 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 20:06:24,333 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 20:06:24,333 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 20:06:24,333 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 20:06:24,333 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 20:06:24,334 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 -> ef75293aeb91e37969e4557310245e0c38a479cd [2019-11-28 20:06:24,713 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 20:06:24,738 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 20:06:24,742 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 20:06:24,743 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 20:06:24,744 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 20:06:24,746 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety-realloc/array-realloc-1.i [2019-11-28 20:06:24,812 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dcba2756f/75f205cd84604019ad4f64873839d8bc/FLAG0a2b85b30 [2019-11-28 20:06:25,364 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 20:06:25,365 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety-realloc/array-realloc-1.i [2019-11-28 20:06:25,391 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dcba2756f/75f205cd84604019ad4f64873839d8bc/FLAG0a2b85b30 [2019-11-28 20:06:25,645 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dcba2756f/75f205cd84604019ad4f64873839d8bc [2019-11-28 20:06:25,648 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 20:06:25,650 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-28 20:06:25,651 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 20:06:25,652 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 20:06:25,655 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 20:06:25,656 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:06:25" (1/1) ... [2019-11-28 20:06:25,659 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77dc97a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:06:25, skipping insertion in model container [2019-11-28 20:06:25,660 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:06:25" (1/1) ... [2019-11-28 20:06:25,668 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 20:06:25,727 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 20:06:26,190 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:06:26,208 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2019-11-28 20:06:26,209 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@21525836 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:06:26, skipping insertion in model container [2019-11-28 20:06:26,209 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 20:06:26,210 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2019-11-28 20:06:26,214 INFO L168 Benchmark]: Toolchain (without parser) took 561.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -154.4 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. [2019-11-28 20:06:26,215 INFO L168 Benchmark]: CDTParser took 0.41 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:06:26,217 INFO L168 Benchmark]: CACSL2BoogieTranslator took 558.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -159.8 MB). Peak memory consumption was 15.1 MB. Max. memory is 11.5 GB. [2019-11-28 20:06:26,220 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 558.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -159.8 MB). Peak memory consumption was 15.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 515]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-f470102 [2019-11-28 20:06:27,860 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 20:06:27,862 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 20:06:27,875 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 20:06:27,875 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 20:06:27,877 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 20:06:27,878 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 20:06:27,880 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 20:06:27,882 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 20:06:27,883 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 20:06:27,884 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 20:06:27,886 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 20:06:27,886 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 20:06:27,887 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 20:06:27,888 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 20:06:27,890 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 20:06:27,891 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 20:06:27,893 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 20:06:27,896 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 20:06:27,899 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 20:06:27,901 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 20:06:27,904 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 20:06:27,906 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 20:06:27,908 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 20:06:27,912 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 20:06:27,913 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 20:06:27,913 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 20:06:27,914 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 20:06:27,914 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 20:06:27,915 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 20:06:27,916 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 20:06:27,917 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 20:06:27,917 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 20:06:27,918 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 20:06:27,919 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 20:06:27,920 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 20:06:27,921 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 20:06:27,921 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 20:06:27,921 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 20:06:27,922 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 20:06:27,923 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 20:06:27,924 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-11-28 20:06:27,944 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 20:06:27,944 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 20:06:27,947 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 20:06:27,947 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 20:06:27,947 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 20:06:27,948 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 20:06:27,948 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 20:06:27,948 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 20:06:27,949 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 20:06:27,949 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 20:06:27,950 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 20:06:27,950 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-28 20:06:27,951 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-28 20:06:27,951 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-28 20:06:27,952 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 20:06:27,952 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-28 20:06:27,952 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-28 20:06:27,952 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-28 20:06:27,953 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 20:06:27,954 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 20:06:27,955 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 20:06:27,956 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 20:06:27,957 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 20:06:27,957 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 20:06:27,957 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 20:06:27,958 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 20:06:27,958 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 20:06:27,958 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-28 20:06:27,958 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-28 20:06:27,959 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 20:06:27,959 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-28 20:06:27,959 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 -> ef75293aeb91e37969e4557310245e0c38a479cd [2019-11-28 20:06:28,257 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 20:06:28,270 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 20:06:28,273 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 20:06:28,275 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 20:06:28,275 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 20:06:28,276 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety-realloc/array-realloc-1.i [2019-11-28 20:06:28,347 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6954b389a/da634848fefc4fc8921c9c45bd2d6567/FLAGeaaf448fb [2019-11-28 20:06:28,810 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 20:06:28,810 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety-realloc/array-realloc-1.i [2019-11-28 20:06:28,822 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6954b389a/da634848fefc4fc8921c9c45bd2d6567/FLAGeaaf448fb [2019-11-28 20:06:29,121 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6954b389a/da634848fefc4fc8921c9c45bd2d6567 [2019-11-28 20:06:29,125 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 20:06:29,127 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-28 20:06:29,128 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 20:06:29,128 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 20:06:29,132 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 20:06:29,133 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:06:29" (1/1) ... [2019-11-28 20:06:29,136 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@364ad6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:06:29, skipping insertion in model container [2019-11-28 20:06:29,137 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:06:29" (1/1) ... [2019-11-28 20:06:29,146 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 20:06:29,192 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 20:06:29,671 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:06:29,690 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-11-28 20:06:29,709 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 20:06:29,755 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:06:29,763 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 20:06:29,804 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:06:29,873 INFO L208 MainTranslator]: Completed translation [2019-11-28 20:06:29,873 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:06:29 WrapperNode [2019-11-28 20:06:29,874 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 20:06:29,874 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 20:06:29,875 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 20:06:29,875 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 20:06:29,889 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:06:29" (1/1) ... [2019-11-28 20:06:29,889 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:06:29" (1/1) ... [2019-11-28 20:06:29,909 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:06:29" (1/1) ... [2019-11-28 20:06:29,910 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:06:29" (1/1) ... [2019-11-28 20:06:29,930 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:06:29" (1/1) ... [2019-11-28 20:06:29,936 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:06:29" (1/1) ... [2019-11-28 20:06:29,939 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:06:29" (1/1) ... [2019-11-28 20:06:29,947 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 20:06:29,947 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 20:06:29,948 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 20:06:29,948 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 20:06:29,949 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:06:29" (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 [2019-11-28 20:06:30,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-28 20:06:30,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 20:06:30,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2019-11-28 20:06:30,003 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-28 20:06:30,004 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-28 20:06:30,004 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-28 20:06:30,004 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-28 20:06:30,004 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-28 20:06:30,004 INFO L138 BoogieDeclarations]: Found implementation of procedure expandArray [2019-11-28 20:06:30,004 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-28 20:06:30,005 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc [2019-11-28 20:06:30,005 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-28 20:06:30,006 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-28 20:06:30,006 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-28 20:06:30,006 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-28 20:06:30,006 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-28 20:06:30,006 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-28 20:06:30,007 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-28 20:06:30,007 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-28 20:06:30,007 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-28 20:06:30,008 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-28 20:06:30,008 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-28 20:06:30,009 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-28 20:06:30,009 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-28 20:06:30,009 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-28 20:06:30,009 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-28 20:06:30,010 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-28 20:06:30,010 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-28 20:06:30,010 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-28 20:06:30,010 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-28 20:06:30,011 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-28 20:06:30,011 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-28 20:06:30,011 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-28 20:06:30,011 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-28 20:06:30,011 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-28 20:06:30,012 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-28 20:06:30,012 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-28 20:06:30,012 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-28 20:06:30,012 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-28 20:06:30,012 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-28 20:06:30,013 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-28 20:06:30,013 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-28 20:06:30,013 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-28 20:06:30,013 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-28 20:06:30,013 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-28 20:06:30,014 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-28 20:06:30,014 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-28 20:06:30,014 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-28 20:06:30,014 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-28 20:06:30,015 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-28 20:06:30,015 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-28 20:06:30,015 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-28 20:06:30,016 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-28 20:06:30,016 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-28 20:06:30,016 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-28 20:06:30,016 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-28 20:06:30,016 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-28 20:06:30,016 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-28 20:06:30,017 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-28 20:06:30,017 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-28 20:06:30,017 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-28 20:06:30,017 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-28 20:06:30,018 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-28 20:06:30,019 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-28 20:06:30,019 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-28 20:06:30,019 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-28 20:06:30,020 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-28 20:06:30,020 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-28 20:06:30,021 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-28 20:06:30,021 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-28 20:06:30,022 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-28 20:06:30,022 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-28 20:06:30,022 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-28 20:06:30,023 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-28 20:06:30,023 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-28 20:06:30,023 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-28 20:06:30,023 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-28 20:06:30,023 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-28 20:06:30,024 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-28 20:06:30,024 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-28 20:06:30,025 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-28 20:06:30,025 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-28 20:06:30,025 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-28 20:06:30,025 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-28 20:06:30,026 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-28 20:06:30,026 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-28 20:06:30,026 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-28 20:06:30,026 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-28 20:06:30,026 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-28 20:06:30,027 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-28 20:06:30,027 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-28 20:06:30,027 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-28 20:06:30,027 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-28 20:06:30,027 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-28 20:06:30,027 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-28 20:06:30,028 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-28 20:06:30,028 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-28 20:06:30,028 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-28 20:06:30,028 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-28 20:06:30,028 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-28 20:06:30,029 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-28 20:06:30,029 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-28 20:06:30,029 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-28 20:06:30,029 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-28 20:06:30,029 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-28 20:06:30,030 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-28 20:06:30,030 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-28 20:06:30,030 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-28 20:06:30,030 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-28 20:06:30,031 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-28 20:06:30,031 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-28 20:06:30,032 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-28 20:06:30,032 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-28 20:06:30,032 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-28 20:06:30,032 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-28 20:06:30,033 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-28 20:06:30,033 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-28 20:06:30,033 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-28 20:06:30,033 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-28 20:06:30,033 INFO L130 BoogieDeclarations]: Found specification of procedure expandArray [2019-11-28 20:06:30,034 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc [2019-11-28 20:06:30,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-28 20:06:30,034 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 20:06:30,034 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-28 20:06:30,034 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-28 20:06:30,035 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-28 20:06:30,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 20:06:30,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2019-11-28 20:06:30,037 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-28 20:06:30,626 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 20:06:30,626 INFO L287 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-28 20:06:30,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:06:30 BoogieIcfgContainer [2019-11-28 20:06:30,627 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 20:06:30,628 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 20:06:30,628 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 20:06:30,632 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 20:06:30,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 08:06:29" (1/3) ... [2019-11-28 20:06:30,633 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44121bbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:06:30, skipping insertion in model container [2019-11-28 20:06:30,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:06:29" (2/3) ... [2019-11-28 20:06:30,634 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44121bbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:06:30, skipping insertion in model container [2019-11-28 20:06:30,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:06:30" (3/3) ... [2019-11-28 20:06:30,636 INFO L109 eAbstractionObserver]: Analyzing ICFG array-realloc-1.i [2019-11-28 20:06:30,647 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 20:06:30,655 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 9 error locations. [2019-11-28 20:06:30,669 INFO L249 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2019-11-28 20:06:30,692 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 20:06:30,692 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-28 20:06:30,693 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 20:06:30,693 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 20:06:30,693 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 20:06:30,693 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 20:06:30,694 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 20:06:30,694 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 20:06:30,711 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2019-11-28 20:06:30,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-28 20:06:30,721 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:06:30,722 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:06:30,722 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr3ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr4ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr3ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr2ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2019-11-28 20:06:30,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:06:30,729 INFO L82 PathProgramCache]: Analyzing trace with hash 1774917903, now seen corresponding path program 1 times [2019-11-28 20:06:30,742 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 20:06:30,743 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2022253470] [2019-11-28 20:06:30,743 INFO L94 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 [2019-11-28 20:06:30,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:06:30,913 INFO L264 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 20:06:30,921 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:06:30,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:06:30,955 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 20:06:30,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:06:30,970 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2022253470] [2019-11-28 20:06:30,971 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:06:30,972 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-28 20:06:30,974 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818426717] [2019-11-28 20:06:30,979 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 20:06:30,980 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 20:06:30,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 20:06:30,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 20:06:31,000 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 3 states. [2019-11-28 20:06:31,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:06:31,124 INFO L93 Difference]: Finished difference Result 55 states and 62 transitions. [2019-11-28 20:06:31,125 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 20:06:31,126 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-11-28 20:06:31,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:06:31,137 INFO L225 Difference]: With dead ends: 55 [2019-11-28 20:06:31,138 INFO L226 Difference]: Without dead ends: 51 [2019-11-28 20:06:31,140 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 20:06:31,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2019-11-28 20:06:31,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 39. [2019-11-28 20:06:31,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-11-28 20:06:31,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 42 transitions. [2019-11-28 20:06:31,188 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 42 transitions. Word has length 8 [2019-11-28 20:06:31,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:06:31,189 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 42 transitions. [2019-11-28 20:06:31,189 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 20:06:31,190 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 42 transitions. [2019-11-28 20:06:31,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-28 20:06:31,190 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:06:31,191 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:06:31,411 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-28 20:06:31,413 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr3ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr4ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr3ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr2ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2019-11-28 20:06:31,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:06:31,415 INFO L82 PathProgramCache]: Analyzing trace with hash -812119182, now seen corresponding path program 1 times [2019-11-28 20:06:31,416 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 20:06:31,416 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1976841937] [2019-11-28 20:06:31,417 INFO L94 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 [2019-11-28 20:06:31,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:06:31,565 INFO L264 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-28 20:06:31,568 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:06:31,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:06:31,579 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 20:06:31,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:06:31,588 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1976841937] [2019-11-28 20:06:31,588 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:06:31,589 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-11-28 20:06:31,589 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861264857] [2019-11-28 20:06:31,591 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 20:06:31,592 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 20:06:31,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 20:06:31,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 20:06:31,592 INFO L87 Difference]: Start difference. First operand 39 states and 42 transitions. Second operand 3 states. [2019-11-28 20:06:31,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:06:31,610 INFO L93 Difference]: Finished difference Result 39 states and 41 transitions. [2019-11-28 20:06:31,611 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 20:06:31,611 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-11-28 20:06:31,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:06:31,612 INFO L225 Difference]: With dead ends: 39 [2019-11-28 20:06:31,612 INFO L226 Difference]: Without dead ends: 39 [2019-11-28 20:06:31,613 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 20:06:31,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-11-28 20:06:31,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-11-28 20:06:31,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-11-28 20:06:31,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 41 transitions. [2019-11-28 20:06:31,626 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 41 transitions. Word has length 9 [2019-11-28 20:06:31,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:06:31,627 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 41 transitions. [2019-11-28 20:06:31,627 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 20:06:31,627 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 41 transitions. [2019-11-28 20:06:31,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-28 20:06:31,628 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:06:31,628 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:06:31,839 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-28 20:06:31,839 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr3ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr4ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr3ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr2ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2019-11-28 20:06:31,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:06:31,840 INFO L82 PathProgramCache]: Analyzing trace with hash -386852574, now seen corresponding path program 1 times [2019-11-28 20:06:31,841 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 20:06:31,841 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [267732086] [2019-11-28 20:06:31,841 INFO L94 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 [2019-11-28 20:06:31,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:06:31,988 INFO L264 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-28 20:06:31,991 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:06:32,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:06:32,011 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 20:06:32,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:06:32,034 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [267732086] [2019-11-28 20:06:32,034 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:06:32,035 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-11-28 20:06:32,035 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072243689] [2019-11-28 20:06:32,035 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 20:06:32,036 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 20:06:32,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 20:06:32,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 20:06:32,040 INFO L87 Difference]: Start difference. First operand 39 states and 41 transitions. Second operand 3 states. [2019-11-28 20:06:32,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:06:32,090 INFO L93 Difference]: Finished difference Result 46 states and 50 transitions. [2019-11-28 20:06:32,091 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 20:06:32,091 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2019-11-28 20:06:32,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:06:32,092 INFO L225 Difference]: With dead ends: 46 [2019-11-28 20:06:32,092 INFO L226 Difference]: Without dead ends: 46 [2019-11-28 20:06:32,093 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 20:06:32,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2019-11-28 20:06:32,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 41. [2019-11-28 20:06:32,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2019-11-28 20:06:32,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 44 transitions. [2019-11-28 20:06:32,101 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 44 transitions. Word has length 13 [2019-11-28 20:06:32,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:06:32,101 INFO L462 AbstractCegarLoop]: Abstraction has 41 states and 44 transitions. [2019-11-28 20:06:32,101 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 20:06:32,102 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 44 transitions. [2019-11-28 20:06:32,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-28 20:06:32,103 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:06:32,103 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:06:32,323 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-28 20:06:32,324 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr3ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr4ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr3ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr2ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2019-11-28 20:06:32,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:06:32,324 INFO L82 PathProgramCache]: Analyzing trace with hash -171591004, now seen corresponding path program 1 times [2019-11-28 20:06:32,325 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 20:06:32,325 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [85486179] [2019-11-28 20:06:32,325 INFO L94 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 [2019-11-28 20:06:32,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:06:32,496 INFO L264 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-28 20:06:32,500 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:06:32,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:06:32,566 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 20:06:32,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:06:32,606 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [85486179] [2019-11-28 20:06:32,606 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:06:32,606 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2019-11-28 20:06:32,607 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173085082] [2019-11-28 20:06:32,608 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-28 20:06:32,608 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 20:06:32,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 20:06:32,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-28 20:06:32,609 INFO L87 Difference]: Start difference. First operand 41 states and 44 transitions. Second operand 6 states. [2019-11-28 20:06:32,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:06:32,704 INFO L93 Difference]: Finished difference Result 52 states and 56 transitions. [2019-11-28 20:06:32,705 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 20:06:32,705 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2019-11-28 20:06:32,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:06:32,708 INFO L225 Difference]: With dead ends: 52 [2019-11-28 20:06:32,708 INFO L226 Difference]: Without dead ends: 52 [2019-11-28 20:06:32,709 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-11-28 20:06:32,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2019-11-28 20:06:32,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 44. [2019-11-28 20:06:32,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2019-11-28 20:06:32,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 48 transitions. [2019-11-28 20:06:32,724 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 48 transitions. Word has length 17 [2019-11-28 20:06:32,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:06:32,725 INFO L462 AbstractCegarLoop]: Abstraction has 44 states and 48 transitions. [2019-11-28 20:06:32,725 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-28 20:06:32,725 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions. [2019-11-28 20:06:32,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-28 20:06:32,728 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:06:32,729 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:06:32,941 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-11-28 20:06:32,941 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr3ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr4ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr3ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr2ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2019-11-28 20:06:32,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:06:32,942 INFO L82 PathProgramCache]: Analyzing trace with hash -170667483, now seen corresponding path program 1 times [2019-11-28 20:06:32,943 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 20:06:32,944 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1999049889] [2019-11-28 20:06:32,944 INFO L94 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 [2019-11-28 20:06:33,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:06:33,076 INFO L264 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-28 20:06:33,078 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:06:33,141 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 20:06:33,142 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 25 [2019-11-28 20:06:33,143 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 20:06:33,165 INFO L614 ElimStorePlain]: treesize reduction 10, result has 60.0 percent of original size [2019-11-28 20:06:33,167 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-28 20:06:33,167 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:9, output treesize:5 [2019-11-28 20:06:33,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:06:33,190 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 20:06:33,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:06:33,230 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1999049889] [2019-11-28 20:06:33,230 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:06:33,230 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-28 20:06:33,230 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752413027] [2019-11-28 20:06:33,231 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 20:06:33,231 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 20:06:33,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 20:06:33,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 20:06:33,232 INFO L87 Difference]: Start difference. First operand 44 states and 48 transitions. Second operand 5 states. [2019-11-28 20:06:33,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:06:33,353 INFO L93 Difference]: Finished difference Result 45 states and 49 transitions. [2019-11-28 20:06:33,354 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 20:06:33,354 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2019-11-28 20:06:33,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:06:33,356 INFO L225 Difference]: With dead ends: 45 [2019-11-28 20:06:33,356 INFO L226 Difference]: Without dead ends: 45 [2019-11-28 20:06:33,356 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 20:06:33,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2019-11-28 20:06:33,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 42. [2019-11-28 20:06:33,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2019-11-28 20:06:33,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2019-11-28 20:06:33,364 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 17 [2019-11-28 20:06:33,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:06:33,365 INFO L462 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2019-11-28 20:06:33,365 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 20:06:33,365 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2019-11-28 20:06:33,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-28 20:06:33,366 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:06:33,366 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:06:33,579 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-11-28 20:06:33,579 INFO L410 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr3ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr4ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr3ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr2ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2019-11-28 20:06:33,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:06:33,580 INFO L82 PathProgramCache]: Analyzing trace with hash -170667482, now seen corresponding path program 1 times [2019-11-28 20:06:33,580 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 20:06:33,580 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [973777985] [2019-11-28 20:06:33,581 INFO L94 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 [2019-11-28 20:06:33,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:06:33,731 INFO L264 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 12 conjunts are in the unsatisfiable core [2019-11-28 20:06:33,733 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:06:33,759 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-28 20:06:33,759 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 20:06:33,766 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 20:06:33,767 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-28 20:06:33,767 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2019-11-28 20:06:33,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:06:33,824 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 20:06:34,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:06:34,307 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [973777985] [2019-11-28 20:06:34,308 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:06:34,308 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2019-11-28 20:06:34,308 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244205122] [2019-11-28 20:06:34,308 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-28 20:06:34,310 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 20:06:34,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-28 20:06:34,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2019-11-28 20:06:34,311 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand 12 states. [2019-11-28 20:06:34,869 WARN L192 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 23 [2019-11-28 20:06:35,369 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 21 [2019-11-28 20:06:35,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:06:35,812 INFO L93 Difference]: Finished difference Result 121 states and 129 transitions. [2019-11-28 20:06:35,813 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-11-28 20:06:35,813 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 17 [2019-11-28 20:06:35,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:06:35,815 INFO L225 Difference]: With dead ends: 121 [2019-11-28 20:06:35,816 INFO L226 Difference]: Without dead ends: 119 [2019-11-28 20:06:35,816 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2019-11-28 20:06:35,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2019-11-28 20:06:35,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 63. [2019-11-28 20:06:35,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2019-11-28 20:06:35,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 71 transitions. [2019-11-28 20:06:35,826 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 71 transitions. Word has length 17 [2019-11-28 20:06:35,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:06:35,826 INFO L462 AbstractCegarLoop]: Abstraction has 63 states and 71 transitions. [2019-11-28 20:06:35,826 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-28 20:06:35,827 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 71 transitions. [2019-11-28 20:06:35,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-28 20:06:35,827 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:06:35,828 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:06:36,028 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-11-28 20:06:36,029 INFO L410 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr3ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr4ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr3ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr2ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2019-11-28 20:06:36,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:06:36,030 INFO L82 PathProgramCache]: Analyzing trace with hash 2028589773, now seen corresponding path program 1 times [2019-11-28 20:06:36,031 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 20:06:36,031 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [36109810] [2019-11-28 20:06:36,031 INFO L94 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 [2019-11-28 20:06:36,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:06:36,122 INFO L264 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-28 20:06:36,124 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:06:36,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:06:36,135 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 20:06:36,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:06:36,146 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [36109810] [2019-11-28 20:06:36,146 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:06:36,146 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-28 20:06:36,146 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018703784] [2019-11-28 20:06:36,147 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 20:06:36,147 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 20:06:36,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 20:06:36,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 20:06:36,148 INFO L87 Difference]: Start difference. First operand 63 states and 71 transitions. Second operand 3 states. [2019-11-28 20:06:36,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:06:36,155 INFO L93 Difference]: Finished difference Result 62 states and 70 transitions. [2019-11-28 20:06:36,161 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 20:06:36,161 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-11-28 20:06:36,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:06:36,163 INFO L225 Difference]: With dead ends: 62 [2019-11-28 20:06:36,163 INFO L226 Difference]: Without dead ends: 62 [2019-11-28 20:06:36,164 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 20:06:36,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2019-11-28 20:06:36,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2019-11-28 20:06:36,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2019-11-28 20:06:36,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 70 transitions. [2019-11-28 20:06:36,178 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 70 transitions. Word has length 17 [2019-11-28 20:06:36,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:06:36,178 INFO L462 AbstractCegarLoop]: Abstraction has 62 states and 70 transitions. [2019-11-28 20:06:36,178 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 20:06:36,179 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 70 transitions. [2019-11-28 20:06:36,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-28 20:06:36,179 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:06:36,180 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:06:36,384 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2019-11-28 20:06:36,385 INFO L410 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr3ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr4ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr3ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr2ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2019-11-28 20:06:36,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:06:36,385 INFO L82 PathProgramCache]: Analyzing trace with hash -1538226398, now seen corresponding path program 1 times [2019-11-28 20:06:36,386 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 20:06:36,387 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1904247740] [2019-11-28 20:06:36,387 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2019-11-28 20:06:36,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:06:36,490 INFO L264 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-28 20:06:36,492 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:06:36,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:06:36,578 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 20:06:36,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:06:36,604 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1904247740] [2019-11-28 20:06:36,604 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:06:36,605 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 2] imperfect sequences [] total 5 [2019-11-28 20:06:36,605 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974025309] [2019-11-28 20:06:36,605 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-28 20:06:36,605 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 20:06:36,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 20:06:36,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2019-11-28 20:06:36,607 INFO L87 Difference]: Start difference. First operand 62 states and 70 transitions. Second operand 6 states. [2019-11-28 20:06:36,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:06:36,696 INFO L93 Difference]: Finished difference Result 61 states and 69 transitions. [2019-11-28 20:06:36,698 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 20:06:36,698 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2019-11-28 20:06:36,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:06:36,699 INFO L225 Difference]: With dead ends: 61 [2019-11-28 20:06:36,699 INFO L226 Difference]: Without dead ends: 61 [2019-11-28 20:06:36,699 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2019-11-28 20:06:36,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2019-11-28 20:06:36,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2019-11-28 20:06:36,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2019-11-28 20:06:36,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 69 transitions. [2019-11-28 20:06:36,704 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 69 transitions. Word has length 18 [2019-11-28 20:06:36,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:06:36,704 INFO L462 AbstractCegarLoop]: Abstraction has 61 states and 69 transitions. [2019-11-28 20:06:36,704 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-28 20:06:36,704 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 69 transitions. [2019-11-28 20:06:36,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-28 20:06:36,705 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:06:36,705 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:06:36,906 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2019-11-28 20:06:36,906 INFO L410 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr3ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr4ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr3ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr2ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2019-11-28 20:06:36,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:06:36,907 INFO L82 PathProgramCache]: Analyzing trace with hash -440378001, now seen corresponding path program 1 times [2019-11-28 20:06:36,907 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 20:06:36,907 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1262119968] [2019-11-28 20:06:36,907 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2019-11-28 20:06:36,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:06:37,002 INFO L264 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-28 20:06:37,003 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:06:37,013 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-28 20:06:37,014 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 20:06:37,016 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 20:06:37,016 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-28 20:06:37,016 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-28 20:06:37,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:06:37,033 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 20:06:37,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:06:37,072 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1262119968] [2019-11-28 20:06:37,073 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:06:37,073 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-11-28 20:06:37,073 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665985198] [2019-11-28 20:06:37,073 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 20:06:37,074 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 20:06:37,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 20:06:37,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-28 20:06:37,074 INFO L87 Difference]: Start difference. First operand 61 states and 69 transitions. Second operand 5 states. [2019-11-28 20:06:37,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:06:37,172 INFO L93 Difference]: Finished difference Result 74 states and 82 transitions. [2019-11-28 20:06:37,172 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 20:06:37,172 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2019-11-28 20:06:37,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:06:37,173 INFO L225 Difference]: With dead ends: 74 [2019-11-28 20:06:37,173 INFO L226 Difference]: Without dead ends: 74 [2019-11-28 20:06:37,174 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 32 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-28 20:06:37,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2019-11-28 20:06:37,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 68. [2019-11-28 20:06:37,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2019-11-28 20:06:37,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 76 transitions. [2019-11-28 20:06:37,181 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 76 transitions. Word has length 19 [2019-11-28 20:06:37,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:06:37,182 INFO L462 AbstractCegarLoop]: Abstraction has 68 states and 76 transitions. [2019-11-28 20:06:37,182 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 20:06:37,182 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 76 transitions. [2019-11-28 20:06:37,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-28 20:06:37,183 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:06:37,183 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:06:37,384 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2019-11-28 20:06:37,384 INFO L410 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr3ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr4ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr3ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr2ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2019-11-28 20:06:37,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:06:37,384 INFO L82 PathProgramCache]: Analyzing trace with hash -766816059, now seen corresponding path program 1 times [2019-11-28 20:06:37,385 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 20:06:37,386 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [251551824] [2019-11-28 20:06:37,386 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2019-11-28 20:06:37,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:06:37,488 INFO L264 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-28 20:06:37,490 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:06:37,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:06:37,554 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 20:06:37,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:06:37,639 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [251551824] [2019-11-28 20:06:37,639 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:06:37,639 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2019-11-28 20:06:37,639 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807901148] [2019-11-28 20:06:37,639 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-28 20:06:37,640 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 20:06:37,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-28 20:06:37,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2019-11-28 20:06:37,640 INFO L87 Difference]: Start difference. First operand 68 states and 76 transitions. Second operand 10 states. [2019-11-28 20:06:37,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:06:37,778 INFO L93 Difference]: Finished difference Result 60 states and 67 transitions. [2019-11-28 20:06:37,780 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-28 20:06:37,780 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 20 [2019-11-28 20:06:37,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:06:37,781 INFO L225 Difference]: With dead ends: 60 [2019-11-28 20:06:37,781 INFO L226 Difference]: Without dead ends: 60 [2019-11-28 20:06:37,782 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2019-11-28 20:06:37,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2019-11-28 20:06:37,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2019-11-28 20:06:37,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2019-11-28 20:06:37,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 67 transitions. [2019-11-28 20:06:37,787 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 67 transitions. Word has length 20 [2019-11-28 20:06:37,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:06:37,787 INFO L462 AbstractCegarLoop]: Abstraction has 60 states and 67 transitions. [2019-11-28 20:06:37,788 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-28 20:06:37,788 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 67 transitions. [2019-11-28 20:06:37,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-28 20:06:37,789 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:06:37,789 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:06:37,995 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2019-11-28 20:06:37,996 INFO L410 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr3ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr4ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr3ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr2ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2019-11-28 20:06:37,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:06:37,996 INFO L82 PathProgramCache]: Analyzing trace with hash 1360467952, now seen corresponding path program 1 times [2019-11-28 20:06:37,997 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 20:06:37,998 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [369534962] [2019-11-28 20:06:37,998 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2019-11-28 20:06:38,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:06:38,097 INFO L264 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-28 20:06:38,099 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:06:38,210 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:06:38,210 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 20:06:38,288 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:06:38,288 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [369534962] [2019-11-28 20:06:38,288 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:06:38,288 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 4] imperfect sequences [] total 9 [2019-11-28 20:06:38,289 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327841645] [2019-11-28 20:06:38,289 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-28 20:06:38,289 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 20:06:38,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-28 20:06:38,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2019-11-28 20:06:38,290 INFO L87 Difference]: Start difference. First operand 60 states and 67 transitions. Second operand 10 states. [2019-11-28 20:06:38,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:06:38,527 INFO L93 Difference]: Finished difference Result 59 states and 66 transitions. [2019-11-28 20:06:38,528 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-28 20:06:38,528 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 22 [2019-11-28 20:06:38,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:06:38,529 INFO L225 Difference]: With dead ends: 59 [2019-11-28 20:06:38,529 INFO L226 Difference]: Without dead ends: 59 [2019-11-28 20:06:38,530 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2019-11-28 20:06:38,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2019-11-28 20:06:38,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2019-11-28 20:06:38,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2019-11-28 20:06:38,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 66 transitions. [2019-11-28 20:06:38,536 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 66 transitions. Word has length 22 [2019-11-28 20:06:38,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:06:38,537 INFO L462 AbstractCegarLoop]: Abstraction has 59 states and 66 transitions. [2019-11-28 20:06:38,537 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-28 20:06:38,537 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 66 transitions. [2019-11-28 20:06:38,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-28 20:06:38,538 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:06:38,539 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:06:38,743 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 mathsat -unsat_core_generation=3 [2019-11-28 20:06:38,744 INFO L410 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr3ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr4ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr3ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr2ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2019-11-28 20:06:38,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:06:38,745 INFO L82 PathProgramCache]: Analyzing trace with hash -1753462742, now seen corresponding path program 1 times [2019-11-28 20:06:38,746 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 20:06:38,748 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1139560374] [2019-11-28 20:06:38,748 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 13 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with mathsat -unsat_core_generation=3 [2019-11-28 20:06:38,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:06:38,863 INFO L264 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-28 20:06:38,866 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:06:38,891 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:06:38,891 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 20:06:38,963 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:06:38,963 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1139560374] [2019-11-28 20:06:38,964 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:06:38,964 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-28 20:06:38,964 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188604587] [2019-11-28 20:06:38,964 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 20:06:38,964 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 20:06:38,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 20:06:38,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 20:06:38,965 INFO L87 Difference]: Start difference. First operand 59 states and 66 transitions. Second operand 5 states. [2019-11-28 20:06:39,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:06:39,028 INFO L93 Difference]: Finished difference Result 59 states and 64 transitions. [2019-11-28 20:06:39,029 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 20:06:39,029 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2019-11-28 20:06:39,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:06:39,030 INFO L225 Difference]: With dead ends: 59 [2019-11-28 20:06:39,030 INFO L226 Difference]: Without dead ends: 59 [2019-11-28 20:06:39,031 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-28 20:06:39,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2019-11-28 20:06:39,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2019-11-28 20:06:39,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2019-11-28 20:06:39,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 64 transitions. [2019-11-28 20:06:39,037 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 64 transitions. Word has length 27 [2019-11-28 20:06:39,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:06:39,037 INFO L462 AbstractCegarLoop]: Abstraction has 59 states and 64 transitions. [2019-11-28 20:06:39,038 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 20:06:39,038 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 64 transitions. [2019-11-28 20:06:39,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-11-28 20:06:39,039 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:06:39,039 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:06:39,250 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 mathsat -unsat_core_generation=3 [2019-11-28 20:06:39,251 INFO L410 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr3ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr4ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr3ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr2ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2019-11-28 20:06:39,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:06:39,251 INFO L82 PathProgramCache]: Analyzing trace with hash 64890135, now seen corresponding path program 1 times [2019-11-28 20:06:39,252 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 20:06:39,252 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [511336123] [2019-11-28 20:06:39,253 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 14 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with mathsat -unsat_core_generation=3 [2019-11-28 20:06:39,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:06:39,378 INFO L264 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-28 20:06:39,380 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:06:39,414 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-28 20:06:39,414 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 20:06:39,451 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-28 20:06:39,452 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [511336123] [2019-11-28 20:06:39,452 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-28 20:06:39,452 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2019-11-28 20:06:39,452 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035780128] [2019-11-28 20:06:39,452 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-28 20:06:39,453 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 20:06:39,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-28 20:06:39,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-28 20:06:39,453 INFO L87 Difference]: Start difference. First operand 59 states and 64 transitions. Second operand 7 states. [2019-11-28 20:06:39,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:06:39,568 INFO L93 Difference]: Finished difference Result 65 states and 67 transitions. [2019-11-28 20:06:39,568 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-28 20:06:39,568 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 29 [2019-11-28 20:06:39,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:06:39,570 INFO L225 Difference]: With dead ends: 65 [2019-11-28 20:06:39,570 INFO L226 Difference]: Without dead ends: 59 [2019-11-28 20:06:39,571 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2019-11-28 20:06:39,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2019-11-28 20:06:39,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2019-11-28 20:06:39,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2019-11-28 20:06:39,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 61 transitions. [2019-11-28 20:06:39,575 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 61 transitions. Word has length 29 [2019-11-28 20:06:39,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:06:39,575 INFO L462 AbstractCegarLoop]: Abstraction has 59 states and 61 transitions. [2019-11-28 20:06:39,576 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-28 20:06:39,576 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 61 transitions. [2019-11-28 20:06:39,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-11-28 20:06:39,577 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:06:39,577 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:06:39,780 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 mathsat -unsat_core_generation=3 [2019-11-28 20:06:39,781 INFO L410 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr3ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr4ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr3ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr2ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2019-11-28 20:06:39,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:06:39,781 INFO L82 PathProgramCache]: Analyzing trace with hash -1742564328, now seen corresponding path program 1 times [2019-11-28 20:06:39,784 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 20:06:39,785 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1183447393] [2019-11-28 20:06:39,785 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 15 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with mathsat -unsat_core_generation=3 [2019-11-28 20:06:39,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:06:39,911 INFO L264 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-28 20:06:39,913 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:06:39,940 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-28 20:06:39,941 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 20:06:39,979 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-28 20:06:39,980 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1183447393] [2019-11-28 20:06:39,980 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:06:39,980 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-28 20:06:39,980 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125224064] [2019-11-28 20:06:39,982 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 20:06:39,982 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 20:06:39,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 20:06:39,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 20:06:39,982 INFO L87 Difference]: Start difference. First operand 59 states and 61 transitions. Second operand 5 states. [2019-11-28 20:06:40,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:06:40,022 INFO L93 Difference]: Finished difference Result 58 states and 60 transitions. [2019-11-28 20:06:40,024 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 20:06:40,024 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2019-11-28 20:06:40,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:06:40,025 INFO L225 Difference]: With dead ends: 58 [2019-11-28 20:06:40,025 INFO L226 Difference]: Without dead ends: 58 [2019-11-28 20:06:40,026 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-28 20:06:40,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2019-11-28 20:06:40,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 56. [2019-11-28 20:06:40,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2019-11-28 20:06:40,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 58 transitions. [2019-11-28 20:06:40,034 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 58 transitions. Word has length 29 [2019-11-28 20:06:40,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:06:40,034 INFO L462 AbstractCegarLoop]: Abstraction has 56 states and 58 transitions. [2019-11-28 20:06:40,034 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 20:06:40,034 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 58 transitions. [2019-11-28 20:06:40,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-11-28 20:06:40,035 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:06:40,035 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:06:40,236 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 mathsat -unsat_core_generation=3 [2019-11-28 20:06:40,236 INFO L410 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr3ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr4ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr3ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr2ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2019-11-28 20:06:40,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:06:40,237 INFO L82 PathProgramCache]: Analyzing trace with hash 188620705, now seen corresponding path program 1 times [2019-11-28 20:06:40,238 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 20:06:40,238 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [197154447] [2019-11-28 20:06:40,238 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 16 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with mathsat -unsat_core_generation=3 [2019-11-28 20:06:40,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:06:40,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:06:40,447 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-11-28 20:06:40,448 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 20:06:40,648 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 mathsat -unsat_core_generation=3 [2019-11-28 20:06:40,708 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 08:06:40 BoogieIcfgContainer [2019-11-28 20:06:40,708 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 20:06:40,709 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 20:06:40,709 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 20:06:40,709 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 20:06:40,710 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:06:30" (3/4) ... [2019-11-28 20:06:40,711 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-28 20:06:40,793 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 20:06:40,793 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 20:06:40,795 INFO L168 Benchmark]: Toolchain (without parser) took 11668.54 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 292.0 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -181.5 MB). Peak memory consumption was 110.5 MB. Max. memory is 11.5 GB. [2019-11-28 20:06:40,796 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:06:40,797 INFO L168 Benchmark]: CACSL2BoogieTranslator took 746.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -169.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. [2019-11-28 20:06:40,797 INFO L168 Benchmark]: Boogie Preprocessor took 72.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-28 20:06:40,798 INFO L168 Benchmark]: RCFGBuilder took 679.95 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 43.8 MB). Peak memory consumption was 43.8 MB. Max. memory is 11.5 GB. [2019-11-28 20:06:40,798 INFO L168 Benchmark]: TraceAbstraction took 10080.08 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 146.3 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -62.1 MB). Peak memory consumption was 84.2 MB. Max. memory is 11.5 GB. [2019-11-28 20:06:40,799 INFO L168 Benchmark]: Witness Printer took 84.41 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:06:40,801 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 746.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -169.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 72.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 679.95 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 43.8 MB). Peak memory consumption was 43.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 10080.08 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 146.3 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -62.1 MB). Peak memory consumption was 84.2 MB. Max. memory is 11.5 GB. * Witness Printer took 84.41 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 538]: free of unallocated memory possible free of unallocated memory possible We found a FailurePath: [L512] int num; [L513] int ind, newsize, i = 1; VAL [\old(i)=5, \old(ind)=6, \old(newsize)=7, \old(num)=9, i=1, ind=0, newsize=0, num=0] [L528] num = __VERIFIER_nondet_int() [L529] COND FALSE !(!(num > 0 && num < 100)) [L532] int *a = (int *)malloc(sizeof(int)); VAL [\old(argc)=11, \old(newsize)=0, \old(num)=0, a={1:0}, argc=11, argv={13:12}, argv={13:12}, i=1, ind=0, malloc(sizeof(int))={1:0}, newsize=0, num=1] [L533] COND FALSE !(a == ((void *)0)) [L536] newsize = 0 VAL [\old(argc)=11, \old(newsize)=0, \old(num)=0, a={1:0}, argc=11, argv={13:12}, argv={13:12}, i=1, ind=0, malloc(sizeof(int))={1:0}, newsize=0, num=1] [L537] CALL expandArray(a) VAL [\old(newsize)=0, \old(num)=0, arg={1:0}, i=1, ind=0, newsize=0, num=1] [L515] int *a = (int *)arg; [L516] int *b = ((void *)0); VAL [\old(newsize)=0, \old(num)=0, a={1:0}, arg={1:0}, arg={1:0}, b={0:0}, i=1, ind=0, newsize=0, num=1] [L517] COND TRUE newsize < num [L518] newsize = newsize + 1 VAL [\old(newsize)=0, \old(num)=0, a={1:0}, arg={1:0}, arg={1:0}, b={0:0}, i=1, ind=0, newsize=1, num=1] [L519] EXPR, FCALL realloc(a, sizeof(int) * newsize) VAL [\old(newsize)=0, \old(num)=0, a={1:0}, arg={1:0}, arg={1:0}, b={0:0}, i=1, ind=0, newsize=1, num=1, realloc(a, sizeof(int) * newsize)={1:0}] [L519] b = realloc(a, sizeof(int) * newsize) [L520] b[newsize - 1] = i VAL [\old(newsize)=0, \old(num)=0, a={1:0}, arg={1:0}, arg={1:0}, b={1:0}, i=1, ind=0, newsize=1, num=1] [L521] a = b VAL [\old(newsize)=0, \old(num)=0, a={1:0}, arg={1:0}, arg={1:0}, b={1:0}, i=1, ind=0, newsize=1, num=1] [L517] COND FALSE !(newsize < num) VAL [\old(newsize)=0, \old(num)=0, a={1:0}, arg={1:0}, arg={1:0}, b={1:0}, i=1, ind=0, newsize=1, num=1] [L523] COND TRUE b != ((void *)0) VAL [\old(newsize)=0, \old(num)=0, a={1:0}, arg={1:0}, arg={1:0}, b={1:0}, i=1, ind=0, newsize=1, num=1] [L524] free(b) VAL [\old(newsize)=0, \old(num)=0, a={1:0}, arg={1:0}, arg={1:0}, b={1:0}, i=1, ind=0, newsize=1, num=1] [L524] free(b) VAL [\old(newsize)=0, \old(num)=0, a={1:0}, arg={1:0}, arg={1:0}, b={1:0}, i=1, ind=0, newsize=1, num=1] [L524] free(b) [L525] return 0; VAL [\old(newsize)=0, \old(num)=0, \result={0:0}, a={1:0}, arg={1:0}, arg={1:0}, b={1:0}, i=1, ind=0, newsize=1, num=1] [L537] RET expandArray(a) VAL [\old(argc)=11, \old(newsize)=0, \old(num)=0, a={1:0}, argc=11, argv={13:12}, argv={13:12}, expandArray(a)={0:0}, i=1, ind=0, malloc(sizeof(int))={1:0}, newsize=1, num=1] [L538] free(a) VAL [\old(argc)=11, \old(newsize)=0, \old(num)=0, a={1:0}, argc=11, argv={13:12}, argv={13:12}, i=1, ind=0, malloc(sizeof(int))={1:0}, newsize=1, num=1] [L538] free(a) VAL [\old(argc)=11, \old(newsize)=0, \old(num)=0, a={1:0}, argc=11, argv={13:12}, argv={13:12}, i=1, ind=0, malloc(sizeof(int))={1:0}, newsize=1, num=1] [L538] free(a) VAL [\old(argc)=11, \old(newsize)=0, \old(num)=0, a={1:0}, argc=11, argv={13:12}, argv={13:12}, i=1, ind=0, malloc(sizeof(int))={1:0}, newsize=1, num=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 63 locations, 9 error locations. Result: UNSAFE, OverallTime: 9.9s, OverallIterations: 15, TraceHistogramMax: 2, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 468 SDtfs, 426 SDslu, 917 SDs, 0 SdLazy, 582 SolverSat, 78 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 1.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 528 GetRequests, 453 SyntacticMatches, 4 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=68occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 14 MinimizatonAttempts, 92 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 292 NumberOfCodeBlocks, 292 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 496 ConstructedInterpolants, 27 QuantifiedInterpolants, 29344 SizeOfPredicates, 18 NumberOfNonLiveVariables, 1347 ConjunctsInSsa, 71 ConjunctsInUnsatCore, 28 InterpolantComputations, 26 PerfectInterpolantSequences, 40/44 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...