./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/array-memsafety/array02-alloca-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/array-memsafety/array02-alloca-2.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 58d4e5463d025a43f4c9f80bcbe28ceb46ed79b1 ............................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/array-memsafety/array02-alloca-2.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 58d4e5463d025a43f4c9f80bcbe28ceb46ed79b1 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 05:48:31,038 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 05:48:31,041 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 05:48:31,088 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 05:48:31,089 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 05:48:31,094 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 05:48:31,095 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 05:48:31,102 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 05:48:31,105 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 05:48:31,106 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 05:48:31,107 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 05:48:31,108 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 05:48:31,110 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 05:48:31,113 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 05:48:31,116 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 05:48:31,117 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 05:48:31,119 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 05:48:31,121 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 05:48:31,132 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 05:48:31,138 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 05:48:31,140 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 05:48:31,141 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 05:48:31,142 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 05:48:31,144 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 05:48:31,146 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 05:48:31,148 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 05:48:31,148 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 05:48:31,150 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 05:48:31,151 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 05:48:31,153 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 05:48:31,154 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 05:48:31,155 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 05:48:31,155 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 05:48:31,156 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 05:48:31,158 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 05:48:31,158 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 05:48:31,159 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 05:48:31,159 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 05:48:31,159 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 05:48:31,160 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 05:48:31,162 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 05:48:31,163 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-10-20 05:48:31,209 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 05:48:31,209 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 05:48:31,211 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 05:48:31,212 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 05:48:31,212 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 05:48:31,212 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 05:48:31,213 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 05:48:31,213 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 05:48:31,213 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 05:48:31,213 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 05:48:31,214 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 05:48:31,215 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-20 05:48:31,215 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-20 05:48:31,216 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-20 05:48:31,216 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 05:48:31,216 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-20 05:48:31,216 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 05:48:31,217 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 05:48:31,217 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 05:48:31,217 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 05:48:31,217 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 05:48:31,218 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 05:48:31,218 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 05:48:31,218 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 05:48:31,218 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 05:48:31,219 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 05:48:31,219 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 05:48:31,219 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 05:48:31,219 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 -> 58d4e5463d025a43f4c9f80bcbe28ceb46ed79b1 [2020-10-20 05:48:31,451 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 05:48:31,463 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 05:48:31,466 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 05:48:31,468 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 05:48:31,469 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 05:48:31,470 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/array02-alloca-2.i [2020-10-20 05:48:31,529 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4096034c/e13557e3feba4ea18ac36ec70d0cfdbb/FLAG7e5733a16 [2020-10-20 05:48:32,139 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 05:48:32,140 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/array02-alloca-2.i [2020-10-20 05:48:32,153 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4096034c/e13557e3feba4ea18ac36ec70d0cfdbb/FLAG7e5733a16 [2020-10-20 05:48:32,388 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4096034c/e13557e3feba4ea18ac36ec70d0cfdbb [2020-10-20 05:48:32,392 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 05:48:32,397 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-20 05:48:32,398 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 05:48:32,399 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 05:48:32,402 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 05:48:32,403 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:48:32" (1/1) ... [2020-10-20 05:48:32,406 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5550ff93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:48:32, skipping insertion in model container [2020-10-20 05:48:32,406 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:48:32" (1/1) ... [2020-10-20 05:48:32,413 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 05:48:32,447 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 05:48:32,828 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 05:48:32,843 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2020-10-20 05:48:32,845 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@58736931 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:48:32, skipping insertion in model container [2020-10-20 05:48:32,845 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 05:48:32,846 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2020-10-20 05:48:32,850 INFO L168 Benchmark]: Toolchain (without parser) took 454.75 ms. Allocated memory was 36.7 MB in the beginning and 45.1 MB in the end (delta: 8.4 MB). Free memory was 16.6 MB in the beginning and 24.9 MB in the end (delta: -8.3 MB). Peak memory consumption was 9.6 MB. Max. memory is 14.3 GB. [2020-10-20 05:48:32,851 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 34.1 MB. Free memory was 8.9 MB in the beginning and 8.9 MB in the end (delta: 3.1 kB). Peak memory consumption was 3.1 kB. Max. memory is 14.3 GB. [2020-10-20 05:48:32,854 INFO L168 Benchmark]: CACSL2BoogieTranslator took 447.16 ms. Allocated memory was 36.7 MB in the beginning and 45.1 MB in the end (delta: 8.4 MB). Free memory was 15.7 MB in the beginning and 24.9 MB in the end (delta: -9.2 MB). Peak memory consumption was 8.7 MB. Max. memory is 14.3 GB. [2020-10-20 05:48:32,857 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 34.1 MB. Free memory was 8.9 MB in the beginning and 8.9 MB in the end (delta: 3.1 kB). Peak memory consumption was 3.1 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 447.16 ms. Allocated memory was 36.7 MB in the beginning and 45.1 MB in the end (delta: 8.4 MB). Free memory was 15.7 MB in the beginning and 24.9 MB in the end (delta: -9.2 MB). Peak memory consumption was 8.7 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 533]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 05:48:34,843 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 05:48:34,846 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 05:48:34,873 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 05:48:34,874 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 05:48:34,875 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 05:48:34,876 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 05:48:34,878 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 05:48:34,880 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 05:48:34,882 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 05:48:34,883 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 05:48:34,884 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 05:48:34,885 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 05:48:34,886 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 05:48:34,887 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 05:48:34,888 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 05:48:34,889 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 05:48:34,891 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 05:48:34,893 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 05:48:34,895 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 05:48:34,897 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 05:48:34,898 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 05:48:34,899 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 05:48:34,900 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 05:48:34,918 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 05:48:34,919 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 05:48:34,919 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 05:48:34,920 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 05:48:34,920 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 05:48:34,923 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 05:48:34,924 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 05:48:34,926 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 05:48:34,927 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 05:48:34,929 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 05:48:34,930 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 05:48:34,931 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 05:48:34,933 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 05:48:34,933 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 05:48:34,933 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 05:48:34,934 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 05:48:34,935 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 05:48:34,937 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2020-10-20 05:48:34,986 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 05:48:34,987 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 05:48:34,988 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 05:48:34,989 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 05:48:34,989 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 05:48:34,989 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 05:48:34,989 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 05:48:34,990 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 05:48:34,990 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 05:48:34,990 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 05:48:34,991 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 05:48:34,992 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-20 05:48:34,992 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-20 05:48:34,993 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-20 05:48:34,993 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 05:48:34,993 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-20 05:48:34,994 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-20 05:48:34,994 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-20 05:48:34,994 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 05:48:34,994 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 05:48:34,995 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 05:48:34,995 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 05:48:34,995 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 05:48:34,996 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 05:48:34,996 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 05:48:34,996 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 05:48:34,996 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 05:48:34,997 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-20 05:48:34,997 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-20 05:48:34,997 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 05:48:34,997 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-20 05:48:34,998 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 -> 58d4e5463d025a43f4c9f80bcbe28ceb46ed79b1 [2020-10-20 05:48:35,210 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 05:48:35,222 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 05:48:35,226 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 05:48:35,227 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 05:48:35,228 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 05:48:35,229 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/array02-alloca-2.i [2020-10-20 05:48:35,287 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91b0dd66c/5b97b600419846db814c756fbf1fe862/FLAGdd6190495 [2020-10-20 05:48:35,833 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 05:48:35,834 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/array02-alloca-2.i [2020-10-20 05:48:35,847 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91b0dd66c/5b97b600419846db814c756fbf1fe862/FLAGdd6190495 [2020-10-20 05:48:36,164 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91b0dd66c/5b97b600419846db814c756fbf1fe862 [2020-10-20 05:48:36,168 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 05:48:36,173 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-20 05:48:36,174 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 05:48:36,175 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 05:48:36,178 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 05:48:36,179 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:48:36" (1/1) ... [2020-10-20 05:48:36,183 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cf3292f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:48:36, skipping insertion in model container [2020-10-20 05:48:36,184 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:48:36" (1/1) ... [2020-10-20 05:48:36,193 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 05:48:36,233 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 05:48:36,598 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 05:48:36,612 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-10-20 05:48:36,619 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 05:48:36,652 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 05:48:36,658 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 05:48:36,695 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 05:48:36,762 INFO L208 MainTranslator]: Completed translation [2020-10-20 05:48:36,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:48:36 WrapperNode [2020-10-20 05:48:36,764 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 05:48:36,765 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 05:48:36,765 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 05:48:36,765 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 05:48:36,779 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:48:36" (1/1) ... [2020-10-20 05:48:36,779 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:48:36" (1/1) ... [2020-10-20 05:48:36,827 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:48:36" (1/1) ... [2020-10-20 05:48:36,828 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:48:36" (1/1) ... [2020-10-20 05:48:36,864 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:48:36" (1/1) ... [2020-10-20 05:48:36,876 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:48:36" (1/1) ... [2020-10-20 05:48:36,884 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:48:36" (1/1) ... [2020-10-20 05:48:36,899 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 05:48:36,900 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 05:48:36,901 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 05:48:36,901 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 05:48:36,902 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:48:36" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 05:48:36,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-20 05:48:36,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 05:48:36,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2020-10-20 05:48:36,967 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-20 05:48:36,967 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-20 05:48:36,967 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-10-20 05:48:36,968 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-10-20 05:48:36,968 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-10-20 05:48:36,968 INFO L138 BoogieDeclarations]: Found implementation of procedure test_fun [2020-10-20 05:48:36,968 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-20 05:48:36,968 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-20 05:48:36,969 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-20 05:48:36,969 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-20 05:48:36,969 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-20 05:48:36,969 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-20 05:48:36,969 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-20 05:48:36,969 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-20 05:48:36,969 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-20 05:48:36,969 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-20 05:48:36,970 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-20 05:48:36,970 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-20 05:48:36,970 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-20 05:48:36,970 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-20 05:48:36,970 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-20 05:48:36,971 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-20 05:48:36,971 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-20 05:48:36,971 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-20 05:48:36,971 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-20 05:48:36,971 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-10-20 05:48:36,971 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-10-20 05:48:36,971 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-10-20 05:48:36,971 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-20 05:48:36,972 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-20 05:48:36,972 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-20 05:48:36,972 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-20 05:48:36,972 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-20 05:48:36,972 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-20 05:48:36,972 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-20 05:48:36,972 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-20 05:48:36,972 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-20 05:48:36,973 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-20 05:48:36,973 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-20 05:48:36,973 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-20 05:48:36,973 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-20 05:48:36,973 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-20 05:48:36,973 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-20 05:48:36,973 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-20 05:48:36,973 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-20 05:48:36,974 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-20 05:48:36,974 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-20 05:48:36,974 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-20 05:48:36,974 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-20 05:48:36,974 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-20 05:48:36,974 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-20 05:48:36,975 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-20 05:48:36,975 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-20 05:48:36,975 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-20 05:48:36,975 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-20 05:48:36,975 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-20 05:48:36,976 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-20 05:48:36,976 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-20 05:48:36,976 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-20 05:48:36,976 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-20 05:48:36,976 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-20 05:48:36,977 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-20 05:48:36,977 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-20 05:48:36,977 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-20 05:48:36,977 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-20 05:48:36,978 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-20 05:48:36,978 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-20 05:48:36,978 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-20 05:48:36,978 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-20 05:48:36,978 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-20 05:48:36,979 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-20 05:48:36,979 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-20 05:48:36,979 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-20 05:48:36,979 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-20 05:48:36,979 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-20 05:48:36,980 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-20 05:48:36,980 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-20 05:48:36,980 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-20 05:48:36,980 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-20 05:48:36,981 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-20 05:48:36,981 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-20 05:48:36,981 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-20 05:48:36,981 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-20 05:48:36,981 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-20 05:48:36,981 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-20 05:48:36,982 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-20 05:48:36,982 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-20 05:48:36,982 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-20 05:48:36,982 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-20 05:48:36,982 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-20 05:48:36,983 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-20 05:48:36,983 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-20 05:48:36,983 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-20 05:48:36,983 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-20 05:48:36,983 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-20 05:48:36,984 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-20 05:48:36,984 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-20 05:48:36,984 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-20 05:48:36,984 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-20 05:48:36,984 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-20 05:48:36,985 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-20 05:48:36,995 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-20 05:48:36,996 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-20 05:48:36,996 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-20 05:48:36,996 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-20 05:48:36,996 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-20 05:48:36,997 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-20 05:48:36,997 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-20 05:48:36,997 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-20 05:48:36,997 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-20 05:48:36,997 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-20 05:48:36,998 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-20 05:48:36,998 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-20 05:48:36,998 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-20 05:48:36,998 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-20 05:48:36,998 INFO L130 BoogieDeclarations]: Found specification of procedure test_fun [2020-10-20 05:48:36,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-20 05:48:36,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-20 05:48:36,999 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-20 05:48:36,999 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 05:48:36,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 05:48:37,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-20 05:48:37,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 05:48:37,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2020-10-20 05:48:37,724 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 05:48:37,725 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-10-20 05:48:37,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:48:37 BoogieIcfgContainer [2020-10-20 05:48:37,727 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 05:48:37,728 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 05:48:37,729 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 05:48:37,733 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 05:48:37,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 05:48:36" (1/3) ... [2020-10-20 05:48:37,734 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ba3a06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:48:37, skipping insertion in model container [2020-10-20 05:48:37,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:48:36" (2/3) ... [2020-10-20 05:48:37,735 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ba3a06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:48:37, skipping insertion in model container [2020-10-20 05:48:37,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:48:37" (3/3) ... [2020-10-20 05:48:37,737 INFO L111 eAbstractionObserver]: Analyzing ICFG array02-alloca-2.i [2020-10-20 05:48:37,750 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 05:48:37,759 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 15 error locations. [2020-10-20 05:48:37,773 INFO L253 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2020-10-20 05:48:37,796 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 05:48:37,796 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-20 05:48:37,796 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 05:48:37,797 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 05:48:37,797 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 05:48:37,797 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 05:48:37,797 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 05:48:37,798 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 05:48:37,814 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2020-10-20 05:48:37,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-20 05:48:37,825 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:48:37,826 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:48:37,827 INFO L429 AbstractCegarLoop]: === Iteration 1 === [test_funErr9REQUIRES_VIOLATION, test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-20 05:48:37,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:48:37,834 INFO L82 PathProgramCache]: Analyzing trace with hash 306652421, now seen corresponding path program 1 times [2020-10-20 05:48:37,847 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:48:37,847 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [860545805] [2020-10-20 05:48:37,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-10-20 05:48:38,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:48:38,017 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-20 05:48:38,023 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:48:38,119 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-10-20 05:48:38,120 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:48:38,131 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:48:38,132 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 05:48:38,132 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2020-10-20 05:48:38,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:48:38,150 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:48:38,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:48:38,316 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [860545805] [2020-10-20 05:48:38,317 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:48:38,317 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-10-20 05:48:38,318 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867222839] [2020-10-20 05:48:38,323 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 05:48:38,324 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:48:38,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 05:48:38,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-20 05:48:38,342 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 6 states. [2020-10-20 05:48:38,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:48:38,997 INFO L93 Difference]: Finished difference Result 75 states and 83 transitions. [2020-10-20 05:48:38,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 05:48:39,002 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2020-10-20 05:48:39,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:48:39,018 INFO L225 Difference]: With dead ends: 75 [2020-10-20 05:48:39,018 INFO L226 Difference]: Without dead ends: 70 [2020-10-20 05:48:39,021 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-10-20 05:48:39,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-10-20 05:48:39,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 51. [2020-10-20 05:48:39,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-10-20 05:48:39,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 57 transitions. [2020-10-20 05:48:39,110 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 57 transitions. Word has length 10 [2020-10-20 05:48:39,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:48:39,110 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 57 transitions. [2020-10-20 05:48:39,111 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 05:48:39,111 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 57 transitions. [2020-10-20 05:48:39,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-20 05:48:39,111 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:48:39,111 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:48:39,312 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-20 05:48:39,313 INFO L429 AbstractCegarLoop]: === Iteration 2 === [test_funErr9REQUIRES_VIOLATION, test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-20 05:48:39,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:48:39,314 INFO L82 PathProgramCache]: Analyzing trace with hash 306652420, now seen corresponding path program 1 times [2020-10-20 05:48:39,315 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:48:39,315 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [889590418] [2020-10-20 05:48:39,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-10-20 05:48:39,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:48:39,407 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-20 05:48:39,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:48:39,419 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-10-20 05:48:39,420 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:48:39,426 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:48:39,427 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 05:48:39,427 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-10-20 05:48:39,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:48:39,445 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:48:39,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:48:39,462 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [889590418] [2020-10-20 05:48:39,463 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:48:39,463 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-20 05:48:39,463 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005448247] [2020-10-20 05:48:39,464 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 05:48:39,465 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:48:39,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 05:48:39,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 05:48:39,465 INFO L87 Difference]: Start difference. First operand 51 states and 57 transitions. Second operand 3 states. [2020-10-20 05:48:39,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:48:39,579 INFO L93 Difference]: Finished difference Result 50 states and 55 transitions. [2020-10-20 05:48:39,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 05:48:39,580 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-20 05:48:39,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:48:39,581 INFO L225 Difference]: With dead ends: 50 [2020-10-20 05:48:39,581 INFO L226 Difference]: Without dead ends: 50 [2020-10-20 05:48:39,582 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 05:48:39,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-10-20 05:48:39,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2020-10-20 05:48:39,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-10-20 05:48:39,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 55 transitions. [2020-10-20 05:48:39,589 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 55 transitions. Word has length 10 [2020-10-20 05:48:39,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:48:39,589 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 55 transitions. [2020-10-20 05:48:39,589 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 05:48:39,589 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 55 transitions. [2020-10-20 05:48:39,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-20 05:48:39,590 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:48:39,591 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:48:39,794 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-20 05:48:39,795 INFO L429 AbstractCegarLoop]: === Iteration 3 === [test_funErr9REQUIRES_VIOLATION, test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-20 05:48:39,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:48:39,795 INFO L82 PathProgramCache]: Analyzing trace with hash 1862352467, now seen corresponding path program 1 times [2020-10-20 05:48:39,796 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:48:39,796 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1326508061] [2020-10-20 05:48:39,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-10-20 05:48:39,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:48:39,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-20 05:48:39,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:48:39,917 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-10-20 05:48:39,917 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:48:39,919 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:48:39,920 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 05:48:39,920 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-10-20 05:48:39,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:48:39,940 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:48:39,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:48:39,952 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1326508061] [2020-10-20 05:48:39,952 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:48:39,953 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2020-10-20 05:48:39,953 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046868690] [2020-10-20 05:48:39,953 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 05:48:39,953 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:48:39,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 05:48:39,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 05:48:39,954 INFO L87 Difference]: Start difference. First operand 50 states and 55 transitions. Second operand 5 states. [2020-10-20 05:48:40,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:48:40,201 INFO L93 Difference]: Finished difference Result 44 states and 49 transitions. [2020-10-20 05:48:40,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 05:48:40,202 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-20 05:48:40,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:48:40,203 INFO L225 Difference]: With dead ends: 44 [2020-10-20 05:48:40,203 INFO L226 Difference]: Without dead ends: 44 [2020-10-20 05:48:40,204 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-20 05:48:40,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-10-20 05:48:40,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2020-10-20 05:48:40,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-10-20 05:48:40,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 49 transitions. [2020-10-20 05:48:40,209 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 49 transitions. Word has length 13 [2020-10-20 05:48:40,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:48:40,210 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 49 transitions. [2020-10-20 05:48:40,210 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 05:48:40,210 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 49 transitions. [2020-10-20 05:48:40,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-20 05:48:40,211 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:48:40,211 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:48:40,423 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-20 05:48:40,423 INFO L429 AbstractCegarLoop]: === Iteration 4 === [test_funErr9REQUIRES_VIOLATION, test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-20 05:48:40,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:48:40,424 INFO L82 PathProgramCache]: Analyzing trace with hash 1862352468, now seen corresponding path program 1 times [2020-10-20 05:48:40,425 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:48:40,425 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1465445551] [2020-10-20 05:48:40,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-10-20 05:48:40,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:48:40,518 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-20 05:48:40,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:48:40,560 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2020-10-20 05:48:40,560 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:48:40,576 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:48:40,578 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1465445551] [2020-10-20 05:48:40,579 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 05:48:40,579 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [976496605] [2020-10-20 05:48:40,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-20 05:48:40,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:48:40,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 05:48:40,775 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:48:40,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:48:40,798 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:48:40,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:48:40,829 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:48:40,830 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-10-20 05:48:40,830 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646811067] [2020-10-20 05:48:40,830 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 05:48:40,830 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:48:40,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 05:48:40,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-20 05:48:40,834 INFO L87 Difference]: Start difference. First operand 44 states and 49 transitions. Second operand 6 states. [2020-10-20 05:48:40,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:48:40,928 INFO L93 Difference]: Finished difference Result 46 states and 50 transitions. [2020-10-20 05:48:40,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 05:48:40,930 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2020-10-20 05:48:40,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:48:40,932 INFO L225 Difference]: With dead ends: 46 [2020-10-20 05:48:40,932 INFO L226 Difference]: Without dead ends: 46 [2020-10-20 05:48:40,932 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-10-20 05:48:40,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-10-20 05:48:40,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 42. [2020-10-20 05:48:40,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-10-20 05:48:40,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2020-10-20 05:48:40,937 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 13 [2020-10-20 05:48:40,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:48:40,937 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2020-10-20 05:48:40,937 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 05:48:40,937 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2020-10-20 05:48:40,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-20 05:48:40,938 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:48:40,938 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:48:41,348 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3,6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-20 05:48:41,352 INFO L429 AbstractCegarLoop]: === Iteration 5 === [test_funErr9REQUIRES_VIOLATION, test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-20 05:48:41,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:48:41,352 INFO L82 PathProgramCache]: Analyzing trace with hash -1603406136, now seen corresponding path program 1 times [2020-10-20 05:48:41,352 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:48:41,353 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [915207781] [2020-10-20 05:48:41,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-10-20 05:48:41,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:48:41,461 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 05:48:41,464 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:48:41,505 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:48:41,505 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:48:41,548 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:48:41,548 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [915207781] [2020-10-20 05:48:41,548 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 05:48:41,549 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2020-10-20 05:48:41,549 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142264068] [2020-10-20 05:48:41,549 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-20 05:48:41,549 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:48:41,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-20 05:48:41,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-20 05:48:41,550 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand 8 states. [2020-10-20 05:48:41,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:48:41,640 INFO L93 Difference]: Finished difference Result 52 states and 56 transitions. [2020-10-20 05:48:41,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 05:48:41,642 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 14 [2020-10-20 05:48:41,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:48:41,643 INFO L225 Difference]: With dead ends: 52 [2020-10-20 05:48:41,643 INFO L226 Difference]: Without dead ends: 52 [2020-10-20 05:48:41,643 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-20 05:48:41,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-20 05:48:41,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 48. [2020-10-20 05:48:41,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-10-20 05:48:41,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 52 transitions. [2020-10-20 05:48:41,652 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 52 transitions. Word has length 14 [2020-10-20 05:48:41,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:48:41,652 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 52 transitions. [2020-10-20 05:48:41,652 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-20 05:48:41,652 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 52 transitions. [2020-10-20 05:48:41,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-20 05:48:41,653 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:48:41,653 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:48:41,853 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-10-20 05:48:41,854 INFO L429 AbstractCegarLoop]: === Iteration 6 === [test_funErr9REQUIRES_VIOLATION, test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-20 05:48:41,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:48:41,855 INFO L82 PathProgramCache]: Analyzing trace with hash 1882214534, now seen corresponding path program 1 times [2020-10-20 05:48:41,855 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:48:41,856 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1291549564] [2020-10-20 05:48:41,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2020-10-20 05:48:41,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:48:41,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-20 05:48:41,956 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:48:41,982 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2020-10-20 05:48:41,982 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:48:42,006 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:48:42,007 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 05:48:42,007 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:22 [2020-10-20 05:48:42,102 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:48:42,103 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:48:42,489 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:48:42,489 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1291549564] [2020-10-20 05:48:42,489 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 05:48:42,490 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2020-10-20 05:48:42,490 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306148152] [2020-10-20 05:48:42,490 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-20 05:48:42,490 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:48:42,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-20 05:48:42,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-20 05:48:42,491 INFO L87 Difference]: Start difference. First operand 48 states and 52 transitions. Second operand 10 states. [2020-10-20 05:48:43,093 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2020-10-20 05:48:43,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:48:43,733 INFO L93 Difference]: Finished difference Result 68 states and 75 transitions. [2020-10-20 05:48:43,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-20 05:48:43,735 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 14 [2020-10-20 05:48:43,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:48:43,736 INFO L225 Difference]: With dead ends: 68 [2020-10-20 05:48:43,736 INFO L226 Difference]: Without dead ends: 68 [2020-10-20 05:48:43,737 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=78, Invalid=132, Unknown=0, NotChecked=0, Total=210 [2020-10-20 05:48:43,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-10-20 05:48:43,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 60. [2020-10-20 05:48:43,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-10-20 05:48:43,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 67 transitions. [2020-10-20 05:48:43,744 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 67 transitions. Word has length 14 [2020-10-20 05:48:43,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:48:43,745 INFO L481 AbstractCegarLoop]: Abstraction has 60 states and 67 transitions. [2020-10-20 05:48:43,745 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-20 05:48:43,745 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 67 transitions. [2020-10-20 05:48:43,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-20 05:48:43,746 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:48:43,746 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:48:43,957 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-10-20 05:48:43,958 INFO L429 AbstractCegarLoop]: === Iteration 7 === [test_funErr9REQUIRES_VIOLATION, test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-20 05:48:43,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:48:43,958 INFO L82 PathProgramCache]: Analyzing trace with hash 1554578223, now seen corresponding path program 1 times [2020-10-20 05:48:43,959 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:48:43,959 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [350025153] [2020-10-20 05:48:43,960 INFO L95 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 [2020-10-20 05:48:44,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:48:44,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-20 05:48:44,062 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:48:44,081 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-10-20 05:48:44,081 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:48:44,086 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:48:44,087 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 05:48:44,087 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-10-20 05:48:44,137 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-20 05:48:44,138 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:48:44,367 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-20 05:48:44,367 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [350025153] [2020-10-20 05:48:44,367 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:48:44,368 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2020-10-20 05:48:44,368 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663859091] [2020-10-20 05:48:44,369 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-20 05:48:44,369 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:48:44,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-20 05:48:44,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-20 05:48:44,369 INFO L87 Difference]: Start difference. First operand 60 states and 67 transitions. Second operand 10 states. [2020-10-20 05:48:45,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:48:45,305 INFO L93 Difference]: Finished difference Result 98 states and 111 transitions. [2020-10-20 05:48:45,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-20 05:48:45,306 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 17 [2020-10-20 05:48:45,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:48:45,309 INFO L225 Difference]: With dead ends: 98 [2020-10-20 05:48:45,309 INFO L226 Difference]: Without dead ends: 98 [2020-10-20 05:48:45,310 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2020-10-20 05:48:45,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-10-20 05:48:45,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 57. [2020-10-20 05:48:45,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-10-20 05:48:45,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 65 transitions. [2020-10-20 05:48:45,317 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 65 transitions. Word has length 17 [2020-10-20 05:48:45,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:48:45,318 INFO L481 AbstractCegarLoop]: Abstraction has 57 states and 65 transitions. [2020-10-20 05:48:45,318 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-20 05:48:45,318 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 65 transitions. [2020-10-20 05:48:45,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-20 05:48:45,319 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:48:45,319 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:48:45,524 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2020-10-20 05:48:45,525 INFO L429 AbstractCegarLoop]: === Iteration 8 === [test_funErr9REQUIRES_VIOLATION, test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-20 05:48:45,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:48:45,526 INFO L82 PathProgramCache]: Analyzing trace with hash -192954524, now seen corresponding path program 1 times [2020-10-20 05:48:45,526 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:48:45,527 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1746376071] [2020-10-20 05:48:45,527 INFO L95 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 [2020-10-20 05:48:45,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:48:45,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-20 05:48:45,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:48:45,639 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1746376071] [2020-10-20 05:48:45,639 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 05:48:45,639 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1276196072] [2020-10-20 05:48:45,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-20 05:48:45,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:48:45,824 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-20 05:48:45,826 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:48:45,829 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 05:48:45,830 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2102748776] [2020-10-20 05:48:45,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 05:48:45,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:48:45,921 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-20 05:48:45,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:48:45,944 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-20 05:48:45,944 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:48:46,020 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-20 05:48:46,021 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:48:46,021 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2020-10-20 05:48:46,021 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598793875] [2020-10-20 05:48:46,022 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-20 05:48:46,023 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:48:46,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-20 05:48:46,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-20 05:48:46,023 INFO L87 Difference]: Start difference. First operand 57 states and 65 transitions. Second operand 7 states. [2020-10-20 05:48:46,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:48:46,177 INFO L93 Difference]: Finished difference Result 76 states and 85 transitions. [2020-10-20 05:48:46,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 05:48:46,180 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2020-10-20 05:48:46,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:48:46,181 INFO L225 Difference]: With dead ends: 76 [2020-10-20 05:48:46,181 INFO L226 Difference]: Without dead ends: 74 [2020-10-20 05:48:46,181 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-20 05:48:46,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-10-20 05:48:46,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 57. [2020-10-20 05:48:46,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-10-20 05:48:46,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 64 transitions. [2020-10-20 05:48:46,188 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 64 transitions. Word has length 20 [2020-10-20 05:48:46,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:48:46,188 INFO L481 AbstractCegarLoop]: Abstraction has 57 states and 64 transitions. [2020-10-20 05:48:46,188 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-20 05:48:46,188 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 64 transitions. [2020-10-20 05:48:46,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-20 05:48:46,189 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:48:46,190 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:48:46,791 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,10 mathsat -unsat_core_generation=3,11 cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-20 05:48:46,791 INFO L429 AbstractCegarLoop]: === Iteration 9 === [test_funErr9REQUIRES_VIOLATION, test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-20 05:48:46,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:48:46,792 INFO L82 PathProgramCache]: Analyzing trace with hash -687390349, now seen corresponding path program 1 times [2020-10-20 05:48:46,793 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:48:46,793 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1704658237] [2020-10-20 05:48:46,794 INFO L95 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 [2020-10-20 05:48:46,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:48:46,898 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-20 05:48:46,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:48:46,947 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-20 05:48:46,947 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:48:47,017 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-20 05:48:47,018 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1704658237] [2020-10-20 05:48:47,018 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 05:48:47,018 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2020-10-20 05:48:47,018 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48406389] [2020-10-20 05:48:47,019 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-20 05:48:47,019 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:48:47,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-20 05:48:47,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-10-20 05:48:47,020 INFO L87 Difference]: Start difference. First operand 57 states and 64 transitions. Second operand 10 states. [2020-10-20 05:48:47,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:48:47,269 INFO L93 Difference]: Finished difference Result 79 states and 87 transitions. [2020-10-20 05:48:47,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 05:48:47,270 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 23 [2020-10-20 05:48:47,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:48:47,271 INFO L225 Difference]: With dead ends: 79 [2020-10-20 05:48:47,271 INFO L226 Difference]: Without dead ends: 79 [2020-10-20 05:48:47,272 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2020-10-20 05:48:47,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2020-10-20 05:48:47,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 76. [2020-10-20 05:48:47,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-10-20 05:48:47,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 85 transitions. [2020-10-20 05:48:47,290 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 85 transitions. Word has length 23 [2020-10-20 05:48:47,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:48:47,290 INFO L481 AbstractCegarLoop]: Abstraction has 76 states and 85 transitions. [2020-10-20 05:48:47,290 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-20 05:48:47,291 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 85 transitions. [2020-10-20 05:48:47,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-20 05:48:47,292 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:48:47,292 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:48:47,495 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 mathsat -unsat_core_generation=3 [2020-10-20 05:48:47,496 INFO L429 AbstractCegarLoop]: === Iteration 10 === [test_funErr9REQUIRES_VIOLATION, test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-20 05:48:47,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:48:47,497 INFO L82 PathProgramCache]: Analyzing trace with hash 2019229045, now seen corresponding path program 1 times [2020-10-20 05:48:47,497 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:48:47,498 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1892111846] [2020-10-20 05:48:47,498 INFO L95 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 [2020-10-20 05:48:47,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:48:47,600 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 16 conjunts are in the unsatisfiable core [2020-10-20 05:48:47,602 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:48:47,632 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2020-10-20 05:48:47,633 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:48:47,648 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:48:47,649 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 05:48:47,649 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:20, output treesize:19 [2020-10-20 05:48:47,825 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-20 05:48:47,825 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:48:48,503 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-20 05:48:48,503 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1892111846] [2020-10-20 05:48:48,503 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 05:48:48,504 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2020-10-20 05:48:48,504 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689643122] [2020-10-20 05:48:48,504 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-20 05:48:48,505 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:48:48,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-20 05:48:48,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2020-10-20 05:48:48,505 INFO L87 Difference]: Start difference. First operand 76 states and 85 transitions. Second operand 14 states. [2020-10-20 05:48:49,658 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2020-10-20 05:48:49,896 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2020-10-20 05:48:50,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:48:50,407 INFO L93 Difference]: Finished difference Result 125 states and 143 transitions. [2020-10-20 05:48:50,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-20 05:48:50,409 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 23 [2020-10-20 05:48:50,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:48:50,410 INFO L225 Difference]: With dead ends: 125 [2020-10-20 05:48:50,410 INFO L226 Difference]: Without dead ends: 125 [2020-10-20 05:48:50,411 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=108, Invalid=354, Unknown=0, NotChecked=0, Total=462 [2020-10-20 05:48:50,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-10-20 05:48:50,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 118. [2020-10-20 05:48:50,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2020-10-20 05:48:50,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 136 transitions. [2020-10-20 05:48:50,425 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 136 transitions. Word has length 23 [2020-10-20 05:48:50,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:48:50,426 INFO L481 AbstractCegarLoop]: Abstraction has 118 states and 136 transitions. [2020-10-20 05:48:50,426 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-20 05:48:50,426 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 136 transitions. [2020-10-20 05:48:50,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-20 05:48:50,428 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:48:50,428 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:48:50,643 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 mathsat -unsat_core_generation=3 [2020-10-20 05:48:50,644 INFO L429 AbstractCegarLoop]: === Iteration 11 === [test_funErr9REQUIRES_VIOLATION, test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-20 05:48:50,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:48:50,645 INFO L82 PathProgramCache]: Analyzing trace with hash 357737120, now seen corresponding path program 1 times [2020-10-20 05:48:50,645 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:48:50,646 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1040231768] [2020-10-20 05:48:50,646 INFO L95 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 [2020-10-20 05:48:50,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:48:50,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-20 05:48:50,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:48:50,761 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-10-20 05:48:50,761 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:48:50,762 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:48:50,763 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 05:48:50,763 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-10-20 05:48:50,812 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:48:50,813 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39 [2020-10-20 05:48:50,815 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:48:50,834 INFO L625 ElimStorePlain]: treesize reduction 10, result has 60.0 percent of original size [2020-10-20 05:48:50,836 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 05:48:50,840 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-20 05:48:50,840 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:15 [2020-10-20 05:48:50,842 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 05:48:50,854 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 05:48:50,867 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 05:48:50,879 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 05:48:50,893 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 05:48:50,916 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 05:48:50,929 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 05:48:50,947 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 05:48:50,971 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 05:48:50,985 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 05:48:51,007 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 05:48:51,036 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-20 05:48:51,036 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:48:55,100 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-20 05:48:55,100 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1040231768] [2020-10-20 05:48:55,100 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:48:55,100 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 8 [2020-10-20 05:48:55,101 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306172027] [2020-10-20 05:48:55,101 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-20 05:48:55,101 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:48:55,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-20 05:48:55,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=49, Unknown=2, NotChecked=0, Total=72 [2020-10-20 05:48:55,102 INFO L87 Difference]: Start difference. First operand 118 states and 136 transitions. Second operand 9 states. [2020-10-20 05:48:55,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:48:55,351 INFO L93 Difference]: Finished difference Result 117 states and 135 transitions. [2020-10-20 05:48:55,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 05:48:55,352 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 26 [2020-10-20 05:48:55,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:48:55,353 INFO L225 Difference]: With dead ends: 117 [2020-10-20 05:48:55,353 INFO L226 Difference]: Without dead ends: 88 [2020-10-20 05:48:55,354 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 34 SyntacticMatches, 11 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=34, Invalid=74, Unknown=2, NotChecked=0, Total=110 [2020-10-20 05:48:55,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2020-10-20 05:48:55,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2020-10-20 05:48:55,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2020-10-20 05:48:55,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 100 transitions. [2020-10-20 05:48:55,364 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 100 transitions. Word has length 26 [2020-10-20 05:48:55,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:48:55,365 INFO L481 AbstractCegarLoop]: Abstraction has 88 states and 100 transitions. [2020-10-20 05:48:55,365 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-20 05:48:55,365 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 100 transitions. [2020-10-20 05:48:55,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-20 05:48:55,368 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:48:55,368 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:48:55,578 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 mathsat -unsat_core_generation=3 [2020-10-20 05:48:55,578 INFO L429 AbstractCegarLoop]: === Iteration 12 === [test_funErr9REQUIRES_VIOLATION, test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-20 05:48:55,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:48:55,579 INFO L82 PathProgramCache]: Analyzing trace with hash 149782479, now seen corresponding path program 2 times [2020-10-20 05:48:55,580 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:48:55,580 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [406185544] [2020-10-20 05:48:55,581 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 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 [2020-10-20 05:48:55,673 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-20 05:48:55,673 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-20 05:48:55,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 14 conjunts are in the unsatisfiable core [2020-10-20 05:48:55,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:48:55,696 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2020-10-20 05:48:55,697 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:48:55,713 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:48:55,714 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 05:48:55,714 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:22 [2020-10-20 05:48:56,019 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:48:56,019 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:48:57,079 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:48:57,080 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [406185544] [2020-10-20 05:48:57,080 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 05:48:57,080 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2020-10-20 05:48:57,081 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791129807] [2020-10-20 05:48:57,081 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-20 05:48:57,081 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:48:57,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-20 05:48:57,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=217, Unknown=0, NotChecked=0, Total=306 [2020-10-20 05:48:57,082 INFO L87 Difference]: Start difference. First operand 88 states and 100 transitions. Second operand 18 states. [2020-10-20 05:48:59,014 WARN L193 SmtUtils]: Spent 548.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-10-20 05:48:59,734 WARN L193 SmtUtils]: Spent 613.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2020-10-20 05:49:02,325 WARN L193 SmtUtils]: Spent 490.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2020-10-20 05:49:02,820 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2020-10-20 05:49:03,304 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2020-10-20 05:49:03,624 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2020-10-20 05:49:03,938 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2020-10-20 05:49:04,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:49:04,771 INFO L93 Difference]: Finished difference Result 120 states and 138 transitions. [2020-10-20 05:49:04,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-20 05:49:04,775 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 26 [2020-10-20 05:49:04,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:49:04,777 INFO L225 Difference]: With dead ends: 120 [2020-10-20 05:49:04,777 INFO L226 Difference]: Without dead ends: 120 [2020-10-20 05:49:04,777 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=311, Invalid=619, Unknown=0, NotChecked=0, Total=930 [2020-10-20 05:49:04,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2020-10-20 05:49:04,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 112. [2020-10-20 05:49:04,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-10-20 05:49:04,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 130 transitions. [2020-10-20 05:49:04,782 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 130 transitions. Word has length 26 [2020-10-20 05:49:04,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:49:04,783 INFO L481 AbstractCegarLoop]: Abstraction has 112 states and 130 transitions. [2020-10-20 05:49:04,783 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-20 05:49:04,783 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 130 transitions. [2020-10-20 05:49:04,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-20 05:49:04,784 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:49:04,784 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:49:04,996 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 mathsat -unsat_core_generation=3 [2020-10-20 05:49:04,996 INFO L429 AbstractCegarLoop]: === Iteration 13 === [test_funErr9REQUIRES_VIOLATION, test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-20 05:49:04,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:49:04,997 INFO L82 PathProgramCache]: Analyzing trace with hash -2067791423, now seen corresponding path program 2 times [2020-10-20 05:49:04,998 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:49:04,998 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1632987004] [2020-10-20 05:49:04,998 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 17 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with mathsat -unsat_core_generation=3 [2020-10-20 05:49:05,103 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-20 05:49:05,104 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-20 05:49:05,107 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 20 conjunts are in the unsatisfiable core [2020-10-20 05:49:05,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:49:05,133 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2020-10-20 05:49:05,133 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:49:05,152 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:49:05,152 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 05:49:05,152 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:22 [2020-10-20 05:49:05,237 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1632987004] [2020-10-20 05:49:05,238 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 05:49:05,238 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [386519017] [2020-10-20 05:49:05,238 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 18 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-20 05:49:05,495 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-20 05:49:05,495 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-20 05:49:05,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-20 05:49:05,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:49:05,669 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 22 proven. 2 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-10-20 05:49:05,670 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:49:05,863 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 22 proven. 2 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-10-20 05:49:05,864 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 05:49:05,864 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 15 [2020-10-20 05:49:05,864 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515996144] [2020-10-20 05:49:05,864 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-20 05:49:05,865 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:49:05,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-20 05:49:05,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2020-10-20 05:49:05,865 INFO L87 Difference]: Start difference. First operand 112 states and 130 transitions. Second operand 15 states. [2020-10-20 05:49:06,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:49:06,338 INFO L93 Difference]: Finished difference Result 129 states and 148 transitions. [2020-10-20 05:49:06,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-20 05:49:06,339 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 41 [2020-10-20 05:49:06,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:49:06,340 INFO L225 Difference]: With dead ends: 129 [2020-10-20 05:49:06,340 INFO L226 Difference]: Without dead ends: 112 [2020-10-20 05:49:06,341 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=86, Invalid=376, Unknown=0, NotChecked=0, Total=462 [2020-10-20 05:49:06,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-10-20 05:49:06,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2020-10-20 05:49:06,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-10-20 05:49:06,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 129 transitions. [2020-10-20 05:49:06,345 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 129 transitions. Word has length 41 [2020-10-20 05:49:06,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:49:06,345 INFO L481 AbstractCegarLoop]: Abstraction has 112 states and 129 transitions. [2020-10-20 05:49:06,345 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-20 05:49:06,346 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 129 transitions. [2020-10-20 05:49:06,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-20 05:49:06,347 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:49:06,347 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:49:06,755 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 mathsat -unsat_core_generation=3,18 cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-20 05:49:06,756 INFO L429 AbstractCegarLoop]: === Iteration 14 === [test_funErr9REQUIRES_VIOLATION, test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-20 05:49:06,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:49:06,757 INFO L82 PathProgramCache]: Analyzing trace with hash -1760549218, now seen corresponding path program 3 times [2020-10-20 05:49:06,758 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:49:06,758 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2010548592] [2020-10-20 05:49:06,759 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 19 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with mathsat -unsat_core_generation=3 [2020-10-20 05:49:06,927 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2020-10-20 05:49:06,927 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-20 05:49:06,933 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 23 conjunts are in the unsatisfiable core [2020-10-20 05:49:06,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:49:06,956 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2020-10-20 05:49:06,957 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:49:06,974 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:49:06,975 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 05:49:06,975 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:22 [2020-10-20 05:49:07,182 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2010548592] [2020-10-20 05:49:07,182 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 05:49:07,183 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [630137366] [2020-10-20 05:49:07,183 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 20 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-20 05:49:07,594 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2020-10-20 05:49:07,594 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-20 05:49:07,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 24 conjunts are in the unsatisfiable core [2020-10-20 05:49:07,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:49:07,612 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2020-10-20 05:49:07,612 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:49:07,632 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:49:07,632 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 05:49:07,632 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:22 [2020-10-20 05:49:07,686 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 05:49:07,687 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [206198670] [2020-10-20 05:49:07,687 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 05:49:07,864 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2020-10-20 05:49:07,864 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-20 05:49:07,869 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 22 conjunts are in the unsatisfiable core [2020-10-20 05:49:07,870 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:49:07,879 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2020-10-20 05:49:07,880 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:49:07,899 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:49:07,900 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 05:49:07,900 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:22 [2020-10-20 05:49:07,955 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 05:49:07,956 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:49:07,956 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2020-10-20 05:49:07,956 ERROR L205 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2020-10-20 05:49:07,956 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 05:49:08,573 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 mathsat -unsat_core_generation=3,21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,20 cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-20 05:49:08,590 WARN L238 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-10-20 05:49:08,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 05:49:08 BoogieIcfgContainer [2020-10-20 05:49:08,591 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 05:49:08,591 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 05:49:08,591 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 05:49:08,591 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 05:49:08,592 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:48:37" (3/4) ... [2020-10-20 05:49:08,594 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 05:49:08,594 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 05:49:08,596 INFO L168 Benchmark]: Toolchain (without parser) took 32426.76 ms. Allocated memory was 37.2 MB in the beginning and 87.6 MB in the end (delta: 50.3 MB). Free memory was 17.5 MB in the beginning and 45.0 MB in the end (delta: -27.4 MB). Peak memory consumption was 22.9 MB. Max. memory is 14.3 GB. [2020-10-20 05:49:08,596 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 34.6 MB. Free memory was 11.0 MB in the beginning and 10.9 MB in the end (delta: 45.6 kB). Peak memory consumption was 45.6 kB. Max. memory is 14.3 GB. [2020-10-20 05:49:08,597 INFO L168 Benchmark]: CACSL2BoogieTranslator took 590.11 ms. Allocated memory was 37.2 MB in the beginning and 46.7 MB in the end (delta: 9.4 MB). Free memory was 16.5 MB in the beginning and 23.3 MB in the end (delta: -6.8 MB). Peak memory consumption was 15.7 MB. Max. memory is 14.3 GB. [2020-10-20 05:49:08,597 INFO L168 Benchmark]: Boogie Preprocessor took 134.69 ms. Allocated memory is still 46.7 MB. Free memory was 23.3 MB in the beginning and 20.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 14.3 GB. [2020-10-20 05:49:08,598 INFO L168 Benchmark]: RCFGBuilder took 827.35 ms. Allocated memory was 46.7 MB in the beginning and 49.8 MB in the end (delta: 3.1 MB). Free memory was 20.2 MB in the beginning and 27.8 MB in the end (delta: -7.7 MB). Peak memory consumption was 13.6 MB. Max. memory is 14.3 GB. [2020-10-20 05:49:08,599 INFO L168 Benchmark]: TraceAbstraction took 30862.26 ms. Allocated memory was 49.8 MB in the beginning and 87.6 MB in the end (delta: 37.7 MB). Free memory was 27.1 MB in the beginning and 45.0 MB in the end (delta: -17.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 14.3 GB. [2020-10-20 05:49:08,599 INFO L168 Benchmark]: Witness Printer took 3.51 ms. Allocated memory is still 87.6 MB. Free memory is still 45.0 MB. There was no memory consumed. Max. memory is 14.3 GB. [2020-10-20 05:49:08,601 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 34.6 MB. Free memory was 11.0 MB in the beginning and 10.9 MB in the end (delta: 45.6 kB). Peak memory consumption was 45.6 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 590.11 ms. Allocated memory was 37.2 MB in the beginning and 46.7 MB in the end (delta: 9.4 MB). Free memory was 16.5 MB in the beginning and 23.3 MB in the end (delta: -6.8 MB). Peak memory consumption was 15.7 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 134.69 ms. Allocated memory is still 46.7 MB. Free memory was 23.3 MB in the beginning and 20.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 14.3 GB. * RCFGBuilder took 827.35 ms. Allocated memory was 46.7 MB in the beginning and 49.8 MB in the end (delta: 3.1 MB). Free memory was 20.2 MB in the beginning and 27.8 MB in the end (delta: -7.7 MB). Peak memory consumption was 13.6 MB. Max. memory is 14.3 GB. * TraceAbstraction took 30862.26 ms. Allocated memory was 49.8 MB in the beginning and 87.6 MB in the end (delta: 37.7 MB). Free memory was 27.1 MB in the beginning and 45.0 MB in the end (delta: -17.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 14.3 GB. * Witness Printer took 3.51 ms. Allocated memory is still 87.6 MB. Free memory is still 45.0 MB. There was no memory consumed. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 518]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L529] int array_size = __VERIFIER_nondet_int(); [L530] COND FALSE !(array_size < 1 || array_size >= 2147483647 / sizeof(int)) [L533] int* numbers = (int*) __builtin_alloca (array_size * sizeof(int)); [L535] int k = 0; [L535] COND TRUE k < array_size [L537] numbers[k] = __VERIFIER_nondet_int() [L535] k++ [L535] COND TRUE k < array_size [L537] numbers[k] = __VERIFIER_nondet_int() [L535] k++ [L535] COND FALSE !(k < array_size) [L540] CALL test_fun(numbers, array_size) [L514] int i; [L515] int pos = 0; [L516] int neg = 0; [L517] i = 0 [L517] COND TRUE i < N [L518] EXPR a[i] [L518] COND FALSE !(a[i] < 0) [L522] EXPR a[i] [L522] COND FALSE !(a[i] > 0) [L517] i++ [L517] COND TRUE i < N [L518] EXPR a[i] [L518] COND FALSE !(a[i] < 0) [L522] EXPR a[i] [L522] COND FALSE !(a[i] > 0) [L517] i++ [L517] COND TRUE i < N [L518] EXPR a[i] [L518] COND FALSE !(a[i] < 0) [L522] EXPR a[i] [L522] COND FALSE !(a[i] > 0) [L517] i++ [L517] COND TRUE i < N [L518] EXPR a[i] [L518] COND FALSE !(a[i] < 0) [L522] EXPR a[i] [L522] COND FALSE !(a[i] > 0) [L517] i++ [L517] COND TRUE i < N [L518] a[i] - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 71 locations, 15 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 30.7s, OverallIterations: 14, TraceHistogramMax: 5, AutomataDifference: 14.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 435 SDtfs, 959 SDslu, 1451 SDs, 0 SdLazy, 1207 SolverSat, 154 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 579 GetRequests, 425 SyntacticMatches, 11 SemanticMatches, 143 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 436 ImplicationChecksByTransitivity, 14.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=118occurred in iteration=10, 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, 13 MinimizatonAttempts, 111 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 8.6s InterpolantComputationTime, 250 NumberOfCodeBlocks, 250 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 474 ConstructedInterpolants, 16 QuantifiedInterpolants, 87192 SizeOfPredicates, 48 NumberOfNonLiveVariables, 803 ConjunctsInSsa, 102 ConjunctsInUnsatCore, 26 InterpolantComputations, 14 PerfectInterpolantSequences, 102/182 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...