./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 30f4e4ab 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 0.1.24-30f4e4a [2019-11-28 02:33:40,146 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 02:33:40,149 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 02:33:40,167 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 02:33:40,167 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 02:33:40,169 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 02:33:40,171 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 02:33:40,180 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 02:33:40,185 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 02:33:40,189 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 02:33:40,191 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 02:33:40,194 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 02:33:40,195 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 02:33:40,197 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 02:33:40,198 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 02:33:40,200 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 02:33:40,201 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 02:33:40,203 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 02:33:40,205 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 02:33:40,209 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 02:33:40,213 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 02:33:40,216 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 02:33:40,218 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 02:33:40,219 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 02:33:40,222 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 02:33:40,224 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 02:33:40,224 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 02:33:40,226 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 02:33:40,226 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 02:33:40,227 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 02:33:40,227 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 02:33:40,228 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 02:33:40,229 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 02:33:40,229 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 02:33:40,230 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 02:33:40,230 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 02:33:40,231 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 02:33:40,231 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 02:33:40,232 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 02:33:40,233 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 02:33:40,233 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 02:33:40,234 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-11-28 02:33:40,249 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 02:33:40,249 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 02:33:40,250 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 02:33:40,251 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 02:33:40,251 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 02:33:40,251 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 02:33:40,252 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 02:33:40,252 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 02:33:40,252 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 02:33:40,252 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 02:33:40,253 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 02:33:40,253 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-28 02:33:40,253 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-28 02:33:40,254 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-28 02:33:40,254 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 02:33:40,254 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-28 02:33:40,255 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 02:33:40,255 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 02:33:40,255 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 02:33:40,255 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 02:33:40,256 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 02:33:40,256 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 02:33:40,256 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 02:33:40,257 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 02:33:40,257 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 02:33:40,257 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 02:33:40,257 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 02:33:40,258 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 02:33:40,540 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 02:33:40,559 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 02:33:40,563 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 02:33:40,564 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 02:33:40,565 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 02:33:40,565 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety-realloc/array-realloc-1.i [2019-11-28 02:33:40,632 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/016f59ee5/34790429ee3a4f118f016517b8f2f8b2/FLAGae20410db [2019-11-28 02:33:41,053 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 02:33:41,054 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety-realloc/array-realloc-1.i [2019-11-28 02:33:41,065 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/016f59ee5/34790429ee3a4f118f016517b8f2f8b2/FLAGae20410db [2019-11-28 02:33:41,364 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/016f59ee5/34790429ee3a4f118f016517b8f2f8b2 [2019-11-28 02:33:41,367 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 02:33:41,368 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-28 02:33:41,369 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 02:33:41,369 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 02:33:41,373 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 02:33:41,374 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:33:41" (1/1) ... [2019-11-28 02:33:41,377 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7109c780 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:33:41, skipping insertion in model container [2019-11-28 02:33:41,377 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:33:41" (1/1) ... [2019-11-28 02:33:41,385 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 02:33:41,427 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 02:33:41,855 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 02:33:41,872 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 02:33:41,873 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1a691c7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:33:41, skipping insertion in model container [2019-11-28 02:33:41,873 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 02:33:41,874 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2019-11-28 02:33:41,876 INFO L168 Benchmark]: Toolchain (without parser) took 506.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -172.6 MB). Peak memory consumption was 15.0 MB. Max. memory is 11.5 GB. [2019-11-28 02:33:41,877 INFO L168 Benchmark]: CDTParser took 0.96 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 02:33:41,878 INFO L168 Benchmark]: CACSL2BoogieTranslator took 504.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -172.6 MB). Peak memory consumption was 15.0 MB. Max. memory is 11.5 GB. [2019-11-28 02:33:41,880 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.96 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 504.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -172.6 MB). Peak memory consumption was 15.0 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 0.1.24-30f4e4a [2019-11-28 02:33:43,622 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 02:33:43,624 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 02:33:43,642 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 02:33:43,643 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 02:33:43,645 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 02:33:43,647 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 02:33:43,655 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 02:33:43,661 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 02:33:43,665 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 02:33:43,666 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 02:33:43,669 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 02:33:43,669 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 02:33:43,671 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 02:33:43,672 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 02:33:43,674 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 02:33:43,676 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 02:33:43,677 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 02:33:43,680 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 02:33:43,684 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 02:33:43,688 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 02:33:43,693 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 02:33:43,694 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 02:33:43,695 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 02:33:43,700 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 02:33:43,701 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 02:33:43,701 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 02:33:43,703 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 02:33:43,703 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 02:33:43,704 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 02:33:43,705 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 02:33:43,705 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 02:33:43,706 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 02:33:43,707 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 02:33:43,709 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 02:33:43,709 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 02:33:43,710 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 02:33:43,710 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 02:33:43,710 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 02:33:43,711 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 02:33:43,713 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 02:33:43,713 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-11-28 02:33:43,746 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 02:33:43,750 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 02:33:43,751 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 02:33:43,751 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 02:33:43,753 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 02:33:43,753 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 02:33:43,753 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 02:33:43,754 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 02:33:43,755 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 02:33:43,755 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 02:33:43,755 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 02:33:43,757 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-28 02:33:43,758 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-28 02:33:43,758 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-28 02:33:43,758 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 02:33:43,759 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-28 02:33:43,759 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-28 02:33:43,759 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-28 02:33:43,759 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 02:33:43,760 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 02:33:43,760 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 02:33:43,761 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 02:33:43,761 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 02:33:43,762 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 02:33:43,762 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 02:33:43,763 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 02:33:43,763 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 02:33:43,763 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-28 02:33:43,764 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-28 02:33:43,764 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-28 02:33:43,765 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 02:33:44,063 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 02:33:44,079 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 02:33:44,084 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 02:33:44,086 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 02:33:44,087 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 02:33:44,088 INFO L428 ainManager$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 02:33:44,152 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/549c32c28/ff92936209b842adb7e4ecf1f9178478/FLAGc8a66f5be [2019-11-28 02:33:44,675 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 02:33:44,676 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety-realloc/array-realloc-1.i [2019-11-28 02:33:44,697 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/549c32c28/ff92936209b842adb7e4ecf1f9178478/FLAGc8a66f5be [2019-11-28 02:33:44,968 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/549c32c28/ff92936209b842adb7e4ecf1f9178478 [2019-11-28 02:33:44,972 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 02:33:44,974 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-28 02:33:44,975 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 02:33:44,975 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 02:33:44,978 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 02:33:44,979 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:33:44" (1/1) ... [2019-11-28 02:33:44,981 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12ebd404 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:33:44, skipping insertion in model container [2019-11-28 02:33:44,982 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:33:44" (1/1) ... [2019-11-28 02:33:44,989 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 02:33:45,034 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 02:33:45,379 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 02:33:45,395 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-11-28 02:33:45,415 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 02:33:45,461 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 02:33:45,474 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 02:33:45,551 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 02:33:45,607 INFO L208 MainTranslator]: Completed translation [2019-11-28 02:33:45,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:33:45 WrapperNode [2019-11-28 02:33:45,608 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 02:33:45,609 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 02:33:45,609 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 02:33:45,609 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 02:33:45,622 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:33:45" (1/1) ... [2019-11-28 02:33:45,623 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:33:45" (1/1) ... [2019-11-28 02:33:45,640 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:33:45" (1/1) ... [2019-11-28 02:33:45,641 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:33:45" (1/1) ... [2019-11-28 02:33:45,660 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:33:45" (1/1) ... [2019-11-28 02:33:45,665 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:33:45" (1/1) ... [2019-11-28 02:33:45,669 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:33:45" (1/1) ... [2019-11-28 02:33:45,677 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 02:33:45,677 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 02:33:45,677 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 02:33:45,678 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 02:33:45,679 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:33:45" (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 02:33:45,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-28 02:33:45,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 02:33:45,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2019-11-28 02:33:45,743 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-28 02:33:45,744 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-28 02:33:45,744 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-28 02:33:45,744 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-28 02:33:45,744 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-28 02:33:45,744 INFO L138 BoogieDeclarations]: Found implementation of procedure expandArray [2019-11-28 02:33:45,745 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-28 02:33:45,745 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc [2019-11-28 02:33:45,745 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-28 02:33:45,745 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-28 02:33:45,746 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-28 02:33:45,746 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-28 02:33:45,746 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-28 02:33:45,746 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-28 02:33:45,747 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-28 02:33:45,747 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-28 02:33:45,747 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-28 02:33:45,747 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-28 02:33:45,748 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-28 02:33:45,748 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-28 02:33:45,748 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-28 02:33:45,748 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-28 02:33:45,748 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-28 02:33:45,749 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-28 02:33:45,749 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-28 02:33:45,749 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-28 02:33:45,749 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-28 02:33:45,750 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-28 02:33:45,750 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-28 02:33:45,750 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-28 02:33:45,750 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-28 02:33:45,750 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-28 02:33:45,751 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-28 02:33:45,751 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-28 02:33:45,751 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-28 02:33:45,751 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-28 02:33:45,752 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-28 02:33:45,752 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-28 02:33:45,752 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-28 02:33:45,752 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-28 02:33:45,752 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-28 02:33:45,753 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-28 02:33:45,753 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-28 02:33:45,753 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-28 02:33:45,753 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-28 02:33:45,754 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-28 02:33:45,754 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-28 02:33:45,754 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-28 02:33:45,754 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-28 02:33:45,754 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-28 02:33:45,755 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-28 02:33:45,755 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-28 02:33:45,755 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-28 02:33:45,755 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-28 02:33:45,755 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-28 02:33:45,756 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-28 02:33:45,756 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-28 02:33:45,756 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-28 02:33:45,756 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-28 02:33:45,756 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-28 02:33:45,757 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-28 02:33:45,757 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-28 02:33:45,757 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-28 02:33:45,757 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-28 02:33:45,758 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-28 02:33:45,758 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-28 02:33:45,758 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-28 02:33:45,758 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-28 02:33:45,758 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-28 02:33:45,759 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-28 02:33:45,759 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-28 02:33:45,759 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-28 02:33:45,759 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-28 02:33:45,759 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-28 02:33:45,760 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-28 02:33:45,760 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-28 02:33:45,760 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-28 02:33:45,760 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-28 02:33:45,760 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-28 02:33:45,761 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-28 02:33:45,761 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-28 02:33:45,761 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-28 02:33:45,761 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-28 02:33:45,761 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-28 02:33:45,762 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-28 02:33:45,762 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-28 02:33:45,762 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-28 02:33:45,762 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-28 02:33:45,762 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-28 02:33:45,763 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-28 02:33:45,763 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-28 02:33:45,763 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-28 02:33:45,763 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-28 02:33:45,763 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-28 02:33:45,764 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-28 02:33:45,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-28 02:33:45,764 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-28 02:33:45,764 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-28 02:33:45,764 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-28 02:33:45,765 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-28 02:33:45,765 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-28 02:33:45,765 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-28 02:33:45,765 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-28 02:33:45,765 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-28 02:33:45,766 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-28 02:33:45,766 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-28 02:33:45,766 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-28 02:33:45,766 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-28 02:33:45,766 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-28 02:33:45,767 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-28 02:33:45,767 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-28 02:33:45,767 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-28 02:33:45,767 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-28 02:33:45,767 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-28 02:33:45,768 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-28 02:33:45,768 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-28 02:33:45,768 INFO L130 BoogieDeclarations]: Found specification of procedure expandArray [2019-11-28 02:33:45,768 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc [2019-11-28 02:33:45,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-28 02:33:45,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 02:33:45,769 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-28 02:33:45,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-28 02:33:45,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-28 02:33:45,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 02:33:45,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2019-11-28 02:33:45,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-28 02:33:46,387 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 02:33:46,388 INFO L297 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-28 02:33:46,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:33:46 BoogieIcfgContainer [2019-11-28 02:33:46,389 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 02:33:46,390 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 02:33:46,391 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 02:33:46,394 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 02:33:46,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:33:44" (1/3) ... [2019-11-28 02:33:46,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f6df223 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:33:46, skipping insertion in model container [2019-11-28 02:33:46,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:33:45" (2/3) ... [2019-11-28 02:33:46,396 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f6df223 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:33:46, skipping insertion in model container [2019-11-28 02:33:46,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:33:46" (3/3) ... [2019-11-28 02:33:46,398 INFO L109 eAbstractionObserver]: Analyzing ICFG array-realloc-1.i [2019-11-28 02:33:46,408 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 02:33:46,415 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 9 error locations. [2019-11-28 02:33:46,427 INFO L249 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2019-11-28 02:33:46,447 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 02:33:46,448 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-28 02:33:46,448 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 02:33:46,448 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 02:33:46,449 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 02:33:46,449 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 02:33:46,449 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 02:33:46,449 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 02:33:46,464 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2019-11-28 02:33:46,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-28 02:33:46,473 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:33:46,474 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:33:46,475 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 02:33:46,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:33:46,481 INFO L82 PathProgramCache]: Analyzing trace with hash 1774917903, now seen corresponding path program 1 times [2019-11-28 02:33:46,492 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 02:33:46,493 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1862898502] [2019-11-28 02:33:46,493 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 02:33:46,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:33:46,658 INFO L255 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 02:33:46,662 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:33:46,687 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 02:33:46,687 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 02:33:46,695 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 02:33:46,698 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1862898502] [2019-11-28 02:33:46,698 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:33:46,699 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-28 02:33:46,700 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366288067] [2019-11-28 02:33:46,704 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 02:33:46,704 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 02:33:46,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 02:33:46,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 02:33:46,717 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 3 states. [2019-11-28 02:33:46,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:33:46,811 INFO L93 Difference]: Finished difference Result 55 states and 62 transitions. [2019-11-28 02:33:46,811 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 02:33:46,813 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-11-28 02:33:46,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:33:46,824 INFO L225 Difference]: With dead ends: 55 [2019-11-28 02:33:46,824 INFO L226 Difference]: Without dead ends: 51 [2019-11-28 02:33:46,826 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 02:33:46,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2019-11-28 02:33:46,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 39. [2019-11-28 02:33:46,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-11-28 02:33:46,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 42 transitions. [2019-11-28 02:33:46,905 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 42 transitions. Word has length 8 [2019-11-28 02:33:46,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:33:46,905 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 42 transitions. [2019-11-28 02:33:46,905 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 02:33:46,906 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 42 transitions. [2019-11-28 02:33:46,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-28 02:33:46,906 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:33:46,907 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:33:47,119 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-28 02:33:47,120 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 02:33:47,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:33:47,120 INFO L82 PathProgramCache]: Analyzing trace with hash -812119182, now seen corresponding path program 1 times [2019-11-28 02:33:47,121 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 02:33:47,121 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1888202121] [2019-11-28 02:33:47,121 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 02:33:47,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:33:47,259 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-28 02:33:47,261 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:33:47,278 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 02:33:47,278 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 02:33:47,287 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 02:33:47,288 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1888202121] [2019-11-28 02:33:47,288 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:33:47,288 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-11-28 02:33:47,289 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088913360] [2019-11-28 02:33:47,292 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 02:33:47,293 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 02:33:47,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 02:33:47,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 02:33:47,294 INFO L87 Difference]: Start difference. First operand 39 states and 42 transitions. Second operand 3 states. [2019-11-28 02:33:47,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:33:47,310 INFO L93 Difference]: Finished difference Result 39 states and 41 transitions. [2019-11-28 02:33:47,311 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 02:33:47,311 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-11-28 02:33:47,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:33:47,313 INFO L225 Difference]: With dead ends: 39 [2019-11-28 02:33:47,313 INFO L226 Difference]: Without dead ends: 39 [2019-11-28 02:33:47,314 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 02:33:47,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-11-28 02:33:47,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-11-28 02:33:47,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-11-28 02:33:47,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 41 transitions. [2019-11-28 02:33:47,329 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 41 transitions. Word has length 9 [2019-11-28 02:33:47,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:33:47,330 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 41 transitions. [2019-11-28 02:33:47,330 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 02:33:47,330 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 41 transitions. [2019-11-28 02:33:47,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-28 02:33:47,331 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:33:47,332 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:33:47,545 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-28 02:33:47,545 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 02:33:47,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:33:47,546 INFO L82 PathProgramCache]: Analyzing trace with hash -386852574, now seen corresponding path program 1 times [2019-11-28 02:33:47,546 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 02:33:47,547 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [739501792] [2019-11-28 02:33:47,547 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 02:33:47,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:33:47,674 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-28 02:33:47,675 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:33:47,693 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 02:33:47,694 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 02:33:47,712 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 02:33:47,716 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [739501792] [2019-11-28 02:33:47,716 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:33:47,716 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-11-28 02:33:47,717 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738158972] [2019-11-28 02:33:47,717 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 02:33:47,718 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 02:33:47,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 02:33:47,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 02:33:47,718 INFO L87 Difference]: Start difference. First operand 39 states and 41 transitions. Second operand 3 states. [2019-11-28 02:33:47,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:33:47,785 INFO L93 Difference]: Finished difference Result 46 states and 50 transitions. [2019-11-28 02:33:47,787 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 02:33:47,787 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2019-11-28 02:33:47,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:33:47,792 INFO L225 Difference]: With dead ends: 46 [2019-11-28 02:33:47,792 INFO L226 Difference]: Without dead ends: 46 [2019-11-28 02:33:47,793 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 02:33:47,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2019-11-28 02:33:47,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 41. [2019-11-28 02:33:47,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2019-11-28 02:33:47,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 44 transitions. [2019-11-28 02:33:47,810 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 44 transitions. Word has length 13 [2019-11-28 02:33:47,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:33:47,812 INFO L462 AbstractCegarLoop]: Abstraction has 41 states and 44 transitions. [2019-11-28 02:33:47,812 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 02:33:47,813 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 44 transitions. [2019-11-28 02:33:47,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-28 02:33:47,815 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:33:47,816 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 02:33:48,031 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-28 02:33:48,032 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 02:33:48,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:33:48,032 INFO L82 PathProgramCache]: Analyzing trace with hash -171591004, now seen corresponding path program 1 times [2019-11-28 02:33:48,032 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 02:33:48,033 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1403393489] [2019-11-28 02:33:48,033 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 02:33:48,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:33:48,157 INFO L255 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-28 02:33:48,159 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:33:48,209 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 02:33:48,209 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 02:33:48,241 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 02:33:48,241 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1403393489] [2019-11-28 02:33:48,242 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:33:48,242 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2019-11-28 02:33:48,242 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999108196] [2019-11-28 02:33:48,243 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-28 02:33:48,243 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 02:33:48,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 02:33:48,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-28 02:33:48,244 INFO L87 Difference]: Start difference. First operand 41 states and 44 transitions. Second operand 6 states. [2019-11-28 02:33:48,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:33:48,332 INFO L93 Difference]: Finished difference Result 52 states and 56 transitions. [2019-11-28 02:33:48,332 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 02:33:48,333 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2019-11-28 02:33:48,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:33:48,334 INFO L225 Difference]: With dead ends: 52 [2019-11-28 02:33:48,334 INFO L226 Difference]: Without dead ends: 52 [2019-11-28 02:33:48,335 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 02:33:48,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2019-11-28 02:33:48,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 44. [2019-11-28 02:33:48,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2019-11-28 02:33:48,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 48 transitions. [2019-11-28 02:33:48,343 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 48 transitions. Word has length 17 [2019-11-28 02:33:48,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:33:48,343 INFO L462 AbstractCegarLoop]: Abstraction has 44 states and 48 transitions. [2019-11-28 02:33:48,343 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-28 02:33:48,343 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions. [2019-11-28 02:33:48,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-28 02:33:48,345 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:33:48,345 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 02:33:48,554 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-11-28 02:33:48,555 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 02:33:48,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:33:48,556 INFO L82 PathProgramCache]: Analyzing trace with hash -170667483, now seen corresponding path program 1 times [2019-11-28 02:33:48,557 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 02:33:48,558 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [770463283] [2019-11-28 02:33:48,558 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 02:33:48,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:33:48,683 INFO L255 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-28 02:33:48,686 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:33:48,763 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 02:33:48,764 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 02:33:48,765 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 02:33:48,791 INFO L588 ElimStorePlain]: treesize reduction 10, result has 60.0 percent of original size [2019-11-28 02:33:48,792 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-28 02:33:48,793 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:9, output treesize:5 [2019-11-28 02:33:48,814 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 02:33:48,814 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 02:33:48,848 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 02:33:48,848 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [770463283] [2019-11-28 02:33:48,849 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:33:48,849 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-28 02:33:48,849 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746017543] [2019-11-28 02:33:48,849 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 02:33:48,850 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 02:33:48,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 02:33:48,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 02:33:48,850 INFO L87 Difference]: Start difference. First operand 44 states and 48 transitions. Second operand 5 states. [2019-11-28 02:33:48,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:33:48,965 INFO L93 Difference]: Finished difference Result 45 states and 49 transitions. [2019-11-28 02:33:48,966 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 02:33:48,966 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2019-11-28 02:33:48,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:33:48,967 INFO L225 Difference]: With dead ends: 45 [2019-11-28 02:33:48,968 INFO L226 Difference]: Without dead ends: 45 [2019-11-28 02:33:48,968 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 02:33:48,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2019-11-28 02:33:48,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 42. [2019-11-28 02:33:48,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2019-11-28 02:33:48,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2019-11-28 02:33:48,976 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 17 [2019-11-28 02:33:48,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:33:48,976 INFO L462 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2019-11-28 02:33:48,977 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 02:33:48,977 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2019-11-28 02:33:48,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-28 02:33:48,978 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:33:48,978 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 02:33:49,189 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-11-28 02:33:49,190 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 02:33:49,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:33:49,191 INFO L82 PathProgramCache]: Analyzing trace with hash -170667482, now seen corresponding path program 1 times [2019-11-28 02:33:49,192 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 02:33:49,192 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1628726209] [2019-11-28 02:33:49,192 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 02:33:49,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:33:49,325 INFO L255 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 12 conjunts are in the unsatisfiable core [2019-11-28 02:33:49,327 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:33:49,361 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 02:33:49,362 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 02:33:49,369 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 02:33:49,370 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-28 02:33:49,370 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2019-11-28 02:33:49,431 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 02:33:49,431 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 02:33:49,881 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 02:33:49,882 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1628726209] [2019-11-28 02:33:49,882 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:33:49,882 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2019-11-28 02:33:49,882 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707478089] [2019-11-28 02:33:49,883 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-28 02:33:49,883 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 02:33:49,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-28 02:33:49,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2019-11-28 02:33:49,886 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand 12 states. [2019-11-28 02:33:50,365 WARN L192 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 23 [2019-11-28 02:33:51,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:33:51,233 INFO L93 Difference]: Finished difference Result 121 states and 129 transitions. [2019-11-28 02:33:51,234 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-11-28 02:33:51,234 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 17 [2019-11-28 02:33:51,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:33:51,236 INFO L225 Difference]: With dead ends: 121 [2019-11-28 02:33:51,238 INFO L226 Difference]: Without dead ends: 119 [2019-11-28 02:33:51,239 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2019-11-28 02:33:51,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2019-11-28 02:33:51,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 63. [2019-11-28 02:33:51,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2019-11-28 02:33:51,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 71 transitions. [2019-11-28 02:33:51,248 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 71 transitions. Word has length 17 [2019-11-28 02:33:51,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:33:51,248 INFO L462 AbstractCegarLoop]: Abstraction has 63 states and 71 transitions. [2019-11-28 02:33:51,249 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-28 02:33:51,249 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 71 transitions. [2019-11-28 02:33:51,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-28 02:33:51,250 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:33:51,250 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 02:33:51,460 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-11-28 02:33:51,461 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 02:33:51,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:33:51,462 INFO L82 PathProgramCache]: Analyzing trace with hash 2028589773, now seen corresponding path program 1 times [2019-11-28 02:33:51,463 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 02:33:51,463 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1419707615] [2019-11-28 02:33:51,464 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 02:33:51,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:33:51,552 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-28 02:33:51,554 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:33:51,564 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 02:33:51,564 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 02:33:51,584 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 02:33:51,584 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1419707615] [2019-11-28 02:33:51,585 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:33:51,585 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-28 02:33:51,585 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027123237] [2019-11-28 02:33:51,585 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 02:33:51,586 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 02:33:51,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 02:33:51,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 02:33:51,586 INFO L87 Difference]: Start difference. First operand 63 states and 71 transitions. Second operand 3 states. [2019-11-28 02:33:51,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:33:51,593 INFO L93 Difference]: Finished difference Result 62 states and 70 transitions. [2019-11-28 02:33:51,596 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 02:33:51,596 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-11-28 02:33:51,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:33:51,598 INFO L225 Difference]: With dead ends: 62 [2019-11-28 02:33:51,598 INFO L226 Difference]: Without dead ends: 62 [2019-11-28 02:33:51,598 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 02:33:51,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2019-11-28 02:33:51,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2019-11-28 02:33:51,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2019-11-28 02:33:51,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 70 transitions. [2019-11-28 02:33:51,605 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 70 transitions. Word has length 17 [2019-11-28 02:33:51,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:33:51,605 INFO L462 AbstractCegarLoop]: Abstraction has 62 states and 70 transitions. [2019-11-28 02:33:51,605 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 02:33:51,605 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 70 transitions. [2019-11-28 02:33:51,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-28 02:33:51,606 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:33:51,606 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 02:33:51,825 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2019-11-28 02:33:51,825 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 02:33:51,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:33:51,826 INFO L82 PathProgramCache]: Analyzing trace with hash -1538226398, now seen corresponding path program 1 times [2019-11-28 02:33:51,827 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 02:33:51,827 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [428413865] [2019-11-28 02:33:51,828 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 02:33:51,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:33:51,926 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-28 02:33:51,928 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:33:52,008 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 02:33:52,010 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 02:33:52,035 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 02:33:52,036 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [428413865] [2019-11-28 02:33:52,036 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:33:52,036 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 2] imperfect sequences [] total 5 [2019-11-28 02:33:52,038 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422451866] [2019-11-28 02:33:52,038 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-28 02:33:52,039 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 02:33:52,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 02:33:52,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2019-11-28 02:33:52,039 INFO L87 Difference]: Start difference. First operand 62 states and 70 transitions. Second operand 6 states. [2019-11-28 02:33:52,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:33:52,108 INFO L93 Difference]: Finished difference Result 61 states and 69 transitions. [2019-11-28 02:33:52,109 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 02:33:52,109 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2019-11-28 02:33:52,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:33:52,110 INFO L225 Difference]: With dead ends: 61 [2019-11-28 02:33:52,110 INFO L226 Difference]: Without dead ends: 61 [2019-11-28 02:33:52,111 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 02:33:52,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2019-11-28 02:33:52,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2019-11-28 02:33:52,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2019-11-28 02:33:52,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 69 transitions. [2019-11-28 02:33:52,123 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 69 transitions. Word has length 18 [2019-11-28 02:33:52,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:33:52,123 INFO L462 AbstractCegarLoop]: Abstraction has 61 states and 69 transitions. [2019-11-28 02:33:52,123 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-28 02:33:52,123 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 69 transitions. [2019-11-28 02:33:52,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-28 02:33:52,124 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:33:52,124 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 02:33:52,341 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2019-11-28 02:33:52,341 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 02:33:52,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:33:52,342 INFO L82 PathProgramCache]: Analyzing trace with hash -440378001, now seen corresponding path program 1 times [2019-11-28 02:33:52,342 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 02:33:52,342 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1740712043] [2019-11-28 02:33:52,342 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 02:33:52,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:33:52,438 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-28 02:33:52,440 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:33:52,453 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 02:33:52,453 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 02:33:52,455 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 02:33:52,455 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-28 02:33:52,455 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-28 02:33:52,474 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 02:33:52,475 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 02:33:52,533 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 02:33:52,534 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1740712043] [2019-11-28 02:33:52,535 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:33:52,535 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-11-28 02:33:52,535 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385564397] [2019-11-28 02:33:52,537 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 02:33:52,537 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 02:33:52,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 02:33:52,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-28 02:33:52,538 INFO L87 Difference]: Start difference. First operand 61 states and 69 transitions. Second operand 5 states. [2019-11-28 02:33:52,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:33:52,628 INFO L93 Difference]: Finished difference Result 74 states and 82 transitions. [2019-11-28 02:33:52,628 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 02:33:52,629 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2019-11-28 02:33:52,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:33:52,630 INFO L225 Difference]: With dead ends: 74 [2019-11-28 02:33:52,630 INFO L226 Difference]: Without dead ends: 74 [2019-11-28 02:33:52,630 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 02:33:52,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2019-11-28 02:33:52,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 68. [2019-11-28 02:33:52,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2019-11-28 02:33:52,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 76 transitions. [2019-11-28 02:33:52,637 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 76 transitions. Word has length 19 [2019-11-28 02:33:52,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:33:52,637 INFO L462 AbstractCegarLoop]: Abstraction has 68 states and 76 transitions. [2019-11-28 02:33:52,637 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 02:33:52,637 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 76 transitions. [2019-11-28 02:33:52,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-28 02:33:52,638 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:33:52,638 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 02:33:52,839 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2019-11-28 02:33:52,839 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 02:33:52,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:33:52,840 INFO L82 PathProgramCache]: Analyzing trace with hash -766816059, now seen corresponding path program 1 times [2019-11-28 02:33:52,840 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 02:33:52,840 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1322936762] [2019-11-28 02:33:52,841 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 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 02:33:52,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:33:52,938 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-28 02:33:52,939 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:33:53,009 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 02:33:53,010 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 02:33:53,089 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 02:33:53,089 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1322936762] [2019-11-28 02:33:53,090 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:33:53,090 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2019-11-28 02:33:53,090 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395802346] [2019-11-28 02:33:53,090 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-28 02:33:53,090 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 02:33:53,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-28 02:33:53,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2019-11-28 02:33:53,091 INFO L87 Difference]: Start difference. First operand 68 states and 76 transitions. Second operand 10 states. [2019-11-28 02:33:53,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:33:53,219 INFO L93 Difference]: Finished difference Result 60 states and 67 transitions. [2019-11-28 02:33:53,220 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-28 02:33:53,220 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 20 [2019-11-28 02:33:53,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:33:53,221 INFO L225 Difference]: With dead ends: 60 [2019-11-28 02:33:53,222 INFO L226 Difference]: Without dead ends: 60 [2019-11-28 02:33:53,222 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 02:33:53,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2019-11-28 02:33:53,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2019-11-28 02:33:53,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2019-11-28 02:33:53,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 67 transitions. [2019-11-28 02:33:53,228 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 67 transitions. Word has length 20 [2019-11-28 02:33:53,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:33:53,228 INFO L462 AbstractCegarLoop]: Abstraction has 60 states and 67 transitions. [2019-11-28 02:33:53,228 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-28 02:33:53,228 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 67 transitions. [2019-11-28 02:33:53,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-28 02:33:53,229 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:33:53,229 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 02:33:53,440 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2019-11-28 02:33:53,441 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 02:33:53,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:33:53,441 INFO L82 PathProgramCache]: Analyzing trace with hash 1360467952, now seen corresponding path program 1 times [2019-11-28 02:33:53,442 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 02:33:53,443 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [62893416] [2019-11-28 02:33:53,443 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 02:33:53,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:33:53,555 INFO L255 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-28 02:33:53,557 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:33:53,682 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 02:33:53,682 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 02:33:53,758 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 02:33:53,758 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [62893416] [2019-11-28 02:33:53,758 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:33:53,759 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 4] imperfect sequences [] total 9 [2019-11-28 02:33:53,759 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199380762] [2019-11-28 02:33:53,759 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-28 02:33:53,760 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 02:33:53,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-28 02:33:53,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2019-11-28 02:33:53,760 INFO L87 Difference]: Start difference. First operand 60 states and 67 transitions. Second operand 10 states. [2019-11-28 02:33:54,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:33:54,009 INFO L93 Difference]: Finished difference Result 59 states and 66 transitions. [2019-11-28 02:33:54,011 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-28 02:33:54,011 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 22 [2019-11-28 02:33:54,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:33:54,012 INFO L225 Difference]: With dead ends: 59 [2019-11-28 02:33:54,012 INFO L226 Difference]: Without dead ends: 59 [2019-11-28 02:33:54,013 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 02:33:54,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2019-11-28 02:33:54,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2019-11-28 02:33:54,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2019-11-28 02:33:54,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 66 transitions. [2019-11-28 02:33:54,018 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 66 transitions. Word has length 22 [2019-11-28 02:33:54,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:33:54,018 INFO L462 AbstractCegarLoop]: Abstraction has 59 states and 66 transitions. [2019-11-28 02:33:54,018 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-28 02:33:54,018 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 66 transitions. [2019-11-28 02:33:54,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-28 02:33:54,019 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:33:54,019 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 02:33:54,223 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 mathsat -unsat_core_generation=3 [2019-11-28 02:33:54,225 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 02:33:54,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:33:54,226 INFO L82 PathProgramCache]: Analyzing trace with hash -1753462742, now seen corresponding path program 1 times [2019-11-28 02:33:54,227 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 02:33:54,227 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [971444721] [2019-11-28 02:33:54,228 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 02:33:54,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:33:54,346 INFO L255 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-28 02:33:54,349 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:33:54,368 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 02:33:54,368 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 02:33:54,413 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 02:33:54,414 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [971444721] [2019-11-28 02:33:54,414 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:33:54,414 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-28 02:33:54,415 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902000871] [2019-11-28 02:33:54,415 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 02:33:54,415 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 02:33:54,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 02:33:54,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 02:33:54,416 INFO L87 Difference]: Start difference. First operand 59 states and 66 transitions. Second operand 5 states. [2019-11-28 02:33:54,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:33:54,476 INFO L93 Difference]: Finished difference Result 59 states and 64 transitions. [2019-11-28 02:33:54,477 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 02:33:54,477 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2019-11-28 02:33:54,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:33:54,478 INFO L225 Difference]: With dead ends: 59 [2019-11-28 02:33:54,478 INFO L226 Difference]: Without dead ends: 59 [2019-11-28 02:33:54,479 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 02:33:54,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2019-11-28 02:33:54,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2019-11-28 02:33:54,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2019-11-28 02:33:54,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 64 transitions. [2019-11-28 02:33:54,483 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 64 transitions. Word has length 27 [2019-11-28 02:33:54,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:33:54,483 INFO L462 AbstractCegarLoop]: Abstraction has 59 states and 64 transitions. [2019-11-28 02:33:54,484 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 02:33:54,484 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 64 transitions. [2019-11-28 02:33:54,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-11-28 02:33:54,485 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:33:54,485 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 02:33:54,696 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 mathsat -unsat_core_generation=3 [2019-11-28 02:33:54,696 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 02:33:54,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:33:54,697 INFO L82 PathProgramCache]: Analyzing trace with hash 64890135, now seen corresponding path program 1 times [2019-11-28 02:33:54,698 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 02:33:54,698 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [697962021] [2019-11-28 02:33:54,698 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 02:33:54,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:33:54,819 INFO L255 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-28 02:33:54,821 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:33:54,851 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 02:33:54,851 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 02:33:54,894 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 02:33:54,894 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [697962021] [2019-11-28 02:33:54,894 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-28 02:33:54,895 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2019-11-28 02:33:54,895 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247555140] [2019-11-28 02:33:54,895 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-28 02:33:54,896 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 02:33:54,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-28 02:33:54,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-28 02:33:54,897 INFO L87 Difference]: Start difference. First operand 59 states and 64 transitions. Second operand 7 states. [2019-11-28 02:33:55,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:33:55,024 INFO L93 Difference]: Finished difference Result 65 states and 67 transitions. [2019-11-28 02:33:55,025 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-28 02:33:55,025 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 29 [2019-11-28 02:33:55,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:33:55,026 INFO L225 Difference]: With dead ends: 65 [2019-11-28 02:33:55,027 INFO L226 Difference]: Without dead ends: 59 [2019-11-28 02:33:55,027 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 02:33:55,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2019-11-28 02:33:55,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2019-11-28 02:33:55,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2019-11-28 02:33:55,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 61 transitions. [2019-11-28 02:33:55,031 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 61 transitions. Word has length 29 [2019-11-28 02:33:55,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:33:55,031 INFO L462 AbstractCegarLoop]: Abstraction has 59 states and 61 transitions. [2019-11-28 02:33:55,031 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-28 02:33:55,031 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 61 transitions. [2019-11-28 02:33:55,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-11-28 02:33:55,032 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:33:55,032 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 02:33:55,241 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 mathsat -unsat_core_generation=3 [2019-11-28 02:33:55,242 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 02:33:55,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:33:55,242 INFO L82 PathProgramCache]: Analyzing trace with hash -1742564328, now seen corresponding path program 1 times [2019-11-28 02:33:55,243 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 02:33:55,244 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1099276551] [2019-11-28 02:33:55,244 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 02:33:55,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:33:55,366 INFO L255 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-28 02:33:55,368 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:33:55,395 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 02:33:55,395 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 02:33:55,419 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 02:33:55,419 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1099276551] [2019-11-28 02:33:55,420 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:33:55,420 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-28 02:33:55,420 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665652748] [2019-11-28 02:33:55,420 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 02:33:55,420 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 02:33:55,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 02:33:55,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 02:33:55,421 INFO L87 Difference]: Start difference. First operand 59 states and 61 transitions. Second operand 5 states. [2019-11-28 02:33:55,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:33:55,458 INFO L93 Difference]: Finished difference Result 58 states and 60 transitions. [2019-11-28 02:33:55,459 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 02:33:55,459 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2019-11-28 02:33:55,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:33:55,459 INFO L225 Difference]: With dead ends: 58 [2019-11-28 02:33:55,460 INFO L226 Difference]: Without dead ends: 58 [2019-11-28 02:33:55,460 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 02:33:55,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2019-11-28 02:33:55,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 56. [2019-11-28 02:33:55,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2019-11-28 02:33:55,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 58 transitions. [2019-11-28 02:33:55,463 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 58 transitions. Word has length 29 [2019-11-28 02:33:55,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:33:55,463 INFO L462 AbstractCegarLoop]: Abstraction has 56 states and 58 transitions. [2019-11-28 02:33:55,463 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 02:33:55,464 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 58 transitions. [2019-11-28 02:33:55,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-11-28 02:33:55,464 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:33:55,465 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 02:33:55,673 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 mathsat -unsat_core_generation=3 [2019-11-28 02:33:55,674 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 02:33:55,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:33:55,674 INFO L82 PathProgramCache]: Analyzing trace with hash 188620705, now seen corresponding path program 1 times [2019-11-28 02:33:55,675 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 02:33:55,675 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1530312332] [2019-11-28 02:33:55,676 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 02:33:55,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:33:55,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:33:55,908 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-11-28 02:33:55,908 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 02:33:56,109 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 mathsat -unsat_core_generation=3 [2019-11-28 02:33:56,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:33:56 BoogieIcfgContainer [2019-11-28 02:33:56,175 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 02:33:56,176 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 02:33:56,176 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 02:33:56,176 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 02:33:56,177 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:33:46" (3/4) ... [2019-11-28 02:33:56,179 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-28 02:33:56,236 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 02:33:56,237 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 02:33:56,238 INFO L168 Benchmark]: Toolchain (without parser) took 11264.94 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 308.3 MB). Free memory was 961.7 MB in the beginning and 1.2 GB in the end (delta: -211.0 MB). Peak memory consumption was 97.3 MB. Max. memory is 11.5 GB. [2019-11-28 02:33:56,239 INFO L168 Benchmark]: CDTParser took 0.27 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 02:33:56,240 INFO L168 Benchmark]: CACSL2BoogieTranslator took 633.69 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.6 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -138.2 MB). Peak memory consumption was 15.2 MB. Max. memory is 11.5 GB. [2019-11-28 02:33:56,240 INFO L168 Benchmark]: Boogie Preprocessor took 68.20 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-28 02:33:56,241 INFO L168 Benchmark]: RCFGBuilder took 712.25 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 46.2 MB). Peak memory consumption was 46.2 MB. Max. memory is 11.5 GB. [2019-11-28 02:33:56,242 INFO L168 Benchmark]: TraceAbstraction took 9785.15 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 187.7 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -131.1 MB). Peak memory consumption was 56.5 MB. Max. memory is 11.5 GB. [2019-11-28 02:33:56,242 INFO L168 Benchmark]: Witness Printer took 61.05 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 02:33:56,245 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 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 633.69 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.6 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -138.2 MB). Peak memory consumption was 15.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 68.20 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 712.25 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 46.2 MB). Peak memory consumption was 46.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 9785.15 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 187.7 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -131.1 MB). Peak memory consumption was 56.5 MB. Max. memory is 11.5 GB. * Witness Printer took 61.05 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 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: 9.6s, OverallIterations: 15, TraceHistogramMax: 2, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 468 SDtfs, 426 SDslu, 917 SDs, 0 SdLazy, 582 SolverSat, 78 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 1.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 528 GetRequests, 453 SyntacticMatches, 4 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 1.7s 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, 0.4s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 292 NumberOfCodeBlocks, 292 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 496 ConstructedInterpolants, 27 QuantifiedInterpolants, 29344 SizeOfPredicates, 18 NumberOfNonLiveVariables, 1365 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...