./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/array-memsafety/array03-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/array03-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 7541988e6da98f0cff4ac2bb6ea7091660417951 ............................................................................................................................. 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/array03-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 7541988e6da98f0cff4ac2bb6ea7091660417951 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 05:48:31,111 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 05:48:31,113 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 05:48:31,143 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 05:48:31,144 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 05:48:31,153 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 05:48:31,155 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 05:48:31,168 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 05:48:31,170 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 05:48:31,172 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 05:48:31,174 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 05:48:31,177 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 05:48:31,177 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 05:48:31,182 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 05:48:31,184 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 05:48:31,186 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 05:48:31,188 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 05:48:31,190 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 05:48:31,193 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 05:48:31,198 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 05:48:31,202 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 05:48:31,203 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 05:48:31,206 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 05:48:31,207 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 05:48:31,217 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 05:48:31,219 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 05:48:31,219 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 05:48:31,220 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 05:48:31,222 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 05:48:31,223 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 05:48:31,224 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 05:48:31,224 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 05:48:31,225 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 05:48:31,226 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 05:48:31,227 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 05:48:31,228 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 05:48:31,228 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 05:48:31,229 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 05:48:31,229 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 05:48:31,230 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 05:48:31,231 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 05:48:31,232 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-10-20 05:48:31,275 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 05:48:31,276 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 05:48:31,277 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 05:48:31,278 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 05:48:31,278 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 05:48:31,278 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 05:48:31,278 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 05:48:31,279 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 05:48:31,279 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 05:48:31,279 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 05:48:31,280 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 05:48:31,280 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-20 05:48:31,281 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-20 05:48:31,281 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-20 05:48:31,281 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 05:48:31,282 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-20 05:48:31,282 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 05:48:31,283 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 05:48:31,283 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 05:48:31,283 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 05:48:31,283 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 05:48:31,284 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 05:48:31,284 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 05:48:31,284 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 05:48:31,284 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 05:48:31,285 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 05:48:31,285 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 05:48:31,285 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 05:48:31,285 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 -> 7541988e6da98f0cff4ac2bb6ea7091660417951 [2020-10-20 05:48:31,518 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 05:48:31,536 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 05:48:31,543 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 05:48:31,545 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 05:48:31,545 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 05:48:31,546 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/array03-alloca-2.i [2020-10-20 05:48:31,621 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/122d66823/51ced8bfe59549c88e0898fce3b7bd5c/FLAGc7e89221b [2020-10-20 05:48:32,119 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 05:48:32,120 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/array03-alloca-2.i [2020-10-20 05:48:32,134 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/122d66823/51ced8bfe59549c88e0898fce3b7bd5c/FLAGc7e89221b [2020-10-20 05:48:32,484 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/122d66823/51ced8bfe59549c88e0898fce3b7bd5c [2020-10-20 05:48:32,488 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 05:48:32,497 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-20 05:48:32,500 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 05:48:32,501 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 05:48:32,504 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 05:48:32,505 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:48:32" (1/1) ... [2020-10-20 05:48:32,510 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f856cb9 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 05:48:32,510 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:48:32" (1/1) ... [2020-10-20 05:48:32,519 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 05:48:32,574 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 05:48:33,024 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 05:48:33,036 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 05:48:33,037 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@a082f07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:48:33, skipping insertion in model container [2020-10-20 05:48:33,038 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 05:48:33,038 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2020-10-20 05:48:33,041 INFO L168 Benchmark]: Toolchain (without parser) took 550.56 ms. Allocated memory was 34.6 MB in the beginning and 44.6 MB in the end (delta: 10.0 MB). Free memory was 10.2 MB in the beginning and 20.9 MB in the end (delta: -10.7 MB). Peak memory consumption was 9.8 MB. Max. memory is 14.3 GB. [2020-10-20 05:48:33,042 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 33.6 MB. Free memory was 18.4 MB in the beginning and 18.3 MB in the end (delta: 40.3 kB). Peak memory consumption was 40.3 kB. Max. memory is 14.3 GB. [2020-10-20 05:48:33,043 INFO L168 Benchmark]: CACSL2BoogieTranslator took 537.42 ms. Allocated memory was 34.6 MB in the beginning and 44.6 MB in the end (delta: 10.0 MB). Free memory was 9.3 MB in the beginning and 21.1 MB in the end (delta: -11.7 MB). Peak memory consumption was 8.9 MB. Max. memory is 14.3 GB. [2020-10-20 05:48:33,046 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 33.6 MB. Free memory was 18.4 MB in the beginning and 18.3 MB in the end (delta: 40.3 kB). Peak memory consumption was 40.3 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 537.42 ms. Allocated memory was 34.6 MB in the beginning and 44.6 MB in the end (delta: 10.0 MB). Free memory was 9.3 MB in the beginning and 21.1 MB in the end (delta: -11.7 MB). Peak memory consumption was 8.9 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 535]: 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 05:48:35,150 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 05:48:35,153 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 05:48:35,193 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 05:48:35,193 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 05:48:35,203 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 05:48:35,205 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 05:48:35,209 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 05:48:35,211 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 05:48:35,216 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 05:48:35,217 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 05:48:35,219 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 05:48:35,219 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 05:48:35,222 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 05:48:35,224 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 05:48:35,226 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 05:48:35,227 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 05:48:35,228 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 05:48:35,231 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 05:48:35,238 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 05:48:35,240 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 05:48:35,241 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 05:48:35,243 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 05:48:35,244 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 05:48:35,256 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 05:48:35,261 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 05:48:35,261 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 05:48:35,262 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 05:48:35,264 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 05:48:35,267 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 05:48:35,267 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 05:48:35,269 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 05:48:35,277 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 05:48:35,278 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 05:48:35,280 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 05:48:35,281 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 05:48:35,282 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 05:48:35,282 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 05:48:35,282 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 05:48:35,283 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 05:48:35,284 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 05:48:35,285 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2020-10-20 05:48:35,324 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 05:48:35,324 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 05:48:35,326 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 05:48:35,327 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 05:48:35,327 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 05:48:35,327 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 05:48:35,328 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 05:48:35,328 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 05:48:35,328 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 05:48:35,328 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 05:48:35,330 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 05:48:35,330 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-20 05:48:35,330 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-20 05:48:35,331 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-20 05:48:35,331 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 05:48:35,331 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-20 05:48:35,331 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-20 05:48:35,332 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-20 05:48:35,332 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 05:48:35,332 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 05:48:35,333 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 05:48:35,333 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 05:48:35,333 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 05:48:35,333 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 05:48:35,334 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 05:48:35,334 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 05:48:35,334 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 05:48:35,334 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-20 05:48:35,335 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-20 05:48:35,335 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 05:48:35,335 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-20 05:48:35,335 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 -> 7541988e6da98f0cff4ac2bb6ea7091660417951 [2020-10-20 05:48:35,550 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 05:48:35,562 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 05:48:35,566 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 05:48:35,568 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 05:48:35,569 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 05:48:35,570 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/array03-alloca-2.i [2020-10-20 05:48:35,646 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4b9eee42/a8c856ebd9514ba0a04a1beb35ee8c6f/FLAG18f068759 [2020-10-20 05:48:36,254 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 05:48:36,255 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/array03-alloca-2.i [2020-10-20 05:48:36,267 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4b9eee42/a8c856ebd9514ba0a04a1beb35ee8c6f/FLAG18f068759 [2020-10-20 05:48:36,571 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4b9eee42/a8c856ebd9514ba0a04a1beb35ee8c6f [2020-10-20 05:48:36,574 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 05:48:36,581 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-20 05:48:36,582 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 05:48:36,582 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 05:48:36,586 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 05:48:36,587 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:48:36" (1/1) ... [2020-10-20 05:48:36,589 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34395fa6 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 05:48:36,590 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:48:36" (1/1) ... [2020-10-20 05:48:36,597 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 05:48:36,650 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 05:48:37,009 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 05:48:37,027 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-10-20 05:48:37,041 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 05:48:37,115 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 05:48:37,120 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 05:48:37,156 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 05:48:37,210 INFO L208 MainTranslator]: Completed translation [2020-10-20 05:48:37,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:48:37 WrapperNode [2020-10-20 05:48:37,211 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 05:48:37,212 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 05:48:37,212 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 05:48:37,213 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 05:48:37,225 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:48:37" (1/1) ... [2020-10-20 05:48:37,226 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:48:37" (1/1) ... [2020-10-20 05:48:37,243 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:48:37" (1/1) ... [2020-10-20 05:48:37,244 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:48:37" (1/1) ... [2020-10-20 05:48:37,271 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:48:37" (1/1) ... [2020-10-20 05:48:37,277 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:48:37" (1/1) ... [2020-10-20 05:48:37,284 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:48:37" (1/1) ... [2020-10-20 05:48:37,291 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 05:48:37,292 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 05:48:37,292 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 05:48:37,292 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 05:48:37,293 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:48:37" (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 05:48:37,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-20 05:48:37,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 05:48:37,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2020-10-20 05:48:37,360 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-20 05:48:37,361 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-20 05:48:37,361 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-10-20 05:48:37,361 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-10-20 05:48:37,362 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-10-20 05:48:37,362 INFO L138 BoogieDeclarations]: Found implementation of procedure test_fun [2020-10-20 05:48:37,362 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-20 05:48:37,363 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-20 05:48:37,363 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-20 05:48:37,363 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-20 05:48:37,364 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-20 05:48:37,364 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-20 05:48:37,365 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-20 05:48:37,365 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-20 05:48:37,366 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-20 05:48:37,366 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-20 05:48:37,367 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-20 05:48:37,368 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-20 05:48:37,368 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-20 05:48:37,369 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-20 05:48:37,369 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-20 05:48:37,369 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-20 05:48:37,369 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-20 05:48:37,369 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-20 05:48:37,370 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-20 05:48:37,370 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-10-20 05:48:37,370 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-10-20 05:48:37,370 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-10-20 05:48:37,370 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-20 05:48:37,371 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-20 05:48:37,371 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-20 05:48:37,371 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-20 05:48:37,371 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-20 05:48:37,372 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-20 05:48:37,372 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-20 05:48:37,372 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-20 05:48:37,372 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-20 05:48:37,372 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-20 05:48:37,372 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-20 05:48:37,372 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-20 05:48:37,372 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-20 05:48:37,372 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-20 05:48:37,373 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-20 05:48:37,373 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-20 05:48:37,373 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-20 05:48:37,373 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-20 05:48:37,373 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-20 05:48:37,373 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-20 05:48:37,374 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-20 05:48:37,374 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-20 05:48:37,374 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-20 05:48:37,374 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-20 05:48:37,374 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-20 05:48:37,374 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-20 05:48:37,375 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-20 05:48:37,375 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-20 05:48:37,375 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-20 05:48:37,375 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-20 05:48:37,375 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-20 05:48:37,375 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-20 05:48:37,375 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-20 05:48:37,376 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-20 05:48:37,376 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-20 05:48:37,376 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-20 05:48:37,377 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-20 05:48:37,377 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-20 05:48:37,377 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-20 05:48:37,378 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-20 05:48:37,379 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-20 05:48:37,379 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-20 05:48:37,379 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-20 05:48:37,379 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-20 05:48:37,379 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-20 05:48:37,379 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-20 05:48:37,379 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-20 05:48:37,379 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-20 05:48:37,380 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-20 05:48:37,380 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-20 05:48:37,381 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-20 05:48:37,381 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-20 05:48:37,381 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-20 05:48:37,381 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-20 05:48:37,381 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-20 05:48:37,381 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-20 05:48:37,381 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-20 05:48:37,381 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-20 05:48:37,382 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-20 05:48:37,382 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-20 05:48:37,382 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-20 05:48:37,382 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-20 05:48:37,382 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-20 05:48:37,382 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-20 05:48:37,382 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-20 05:48:37,382 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-20 05:48:37,382 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-20 05:48:37,382 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-20 05:48:37,383 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-20 05:48:37,383 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-20 05:48:37,383 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-20 05:48:37,383 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-20 05:48:37,383 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-20 05:48:37,383 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-20 05:48:37,383 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-20 05:48:37,383 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-20 05:48:37,383 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-20 05:48:37,384 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-20 05:48:37,384 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-20 05:48:37,392 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-20 05:48:37,393 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-20 05:48:37,393 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-20 05:48:37,393 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-20 05:48:37,393 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-20 05:48:37,394 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-20 05:48:37,394 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-20 05:48:37,395 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-20 05:48:37,395 INFO L130 BoogieDeclarations]: Found specification of procedure test_fun [2020-10-20 05:48:37,395 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-20 05:48:37,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-20 05:48:37,395 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-20 05:48:37,396 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 05:48:37,396 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 05:48:37,397 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-20 05:48:37,397 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 05:48:37,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2020-10-20 05:48:38,193 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 05:48:38,193 INFO L298 CfgBuilder]: Removed 3 assume(true) statements. [2020-10-20 05:48:38,195 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:48:38 BoogieIcfgContainer [2020-10-20 05:48:38,195 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 05:48:38,196 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 05:48:38,196 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 05:48:38,199 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 05:48:38,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 05:48:36" (1/3) ... [2020-10-20 05:48:38,201 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19f39a26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:48:38, skipping insertion in model container [2020-10-20 05:48:38,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:48:37" (2/3) ... [2020-10-20 05:48:38,201 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19f39a26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:48:38, skipping insertion in model container [2020-10-20 05:48:38,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:48:38" (3/3) ... [2020-10-20 05:48:38,203 INFO L111 eAbstractionObserver]: Analyzing ICFG array03-alloca-2.i [2020-10-20 05:48:38,216 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 05:48:38,225 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 17 error locations. [2020-10-20 05:48:38,237 INFO L253 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2020-10-20 05:48:38,253 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 05:48:38,254 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-20 05:48:38,254 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 05:48:38,254 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 05:48:38,254 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 05:48:38,254 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 05:48:38,254 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 05:48:38,254 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 05:48:38,268 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states. [2020-10-20 05:48:38,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-20 05:48:38,277 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:48:38,277 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:48:38,278 INFO L429 AbstractCegarLoop]: === Iteration 1 === [test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr13REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr12REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-20 05:48:38,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:48:38,283 INFO L82 PathProgramCache]: Analyzing trace with hash 1745891075, now seen corresponding path program 1 times [2020-10-20 05:48:38,292 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:48:38,293 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1079731966] [2020-10-20 05:48:38,293 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 05:48:38,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:48:38,441 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-20 05:48:38,448 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:48:38,544 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 05:48:38,544 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:48:38,557 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:48:38,558 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 05:48:38,559 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2020-10-20 05:48:38,577 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 05:48:38,578 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:48:38,750 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 05:48:38,751 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1079731966] [2020-10-20 05:48:38,751 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:48:38,752 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-10-20 05:48:38,752 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618431385] [2020-10-20 05:48:38,757 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 05:48:38,757 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:48:38,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 05:48:38,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-20 05:48:38,778 INFO L87 Difference]: Start difference. First operand 53 states. Second operand 6 states. [2020-10-20 05:48:39,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:48:39,600 INFO L93 Difference]: Finished difference Result 78 states and 87 transitions. [2020-10-20 05:48:39,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 05:48:39,602 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2020-10-20 05:48:39,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:48:39,614 INFO L225 Difference]: With dead ends: 78 [2020-10-20 05:48:39,615 INFO L226 Difference]: Without dead ends: 73 [2020-10-20 05:48:39,617 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 05:48:39,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-10-20 05:48:39,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 54. [2020-10-20 05:48:39,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-20 05:48:39,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 61 transitions. [2020-10-20 05:48:39,668 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 61 transitions. Word has length 10 [2020-10-20 05:48:39,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:48:39,668 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 61 transitions. [2020-10-20 05:48:39,668 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 05:48:39,669 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 61 transitions. [2020-10-20 05:48:39,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-20 05:48:39,669 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:48:39,670 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:48:39,884 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-20 05:48:39,885 INFO L429 AbstractCegarLoop]: === Iteration 2 === [test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr13REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr12REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-20 05:48:39,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:48:39,886 INFO L82 PathProgramCache]: Analyzing trace with hash 1745891074, now seen corresponding path program 1 times [2020-10-20 05:48:39,887 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:48:39,887 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1250809676] [2020-10-20 05:48:39,888 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 05:48:39,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:48:39,986 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-20 05:48:39,988 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:48:40,001 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 05:48:40,002 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:48:40,004 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:48:40,004 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 05:48:40,005 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-10-20 05:48:40,009 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 05:48:40,009 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:48:40,025 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 05:48:40,025 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1250809676] [2020-10-20 05:48:40,025 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:48:40,026 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-20 05:48:40,026 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157722416] [2020-10-20 05:48:40,028 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 05:48:40,028 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:48:40,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 05:48:40,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 05:48:40,029 INFO L87 Difference]: Start difference. First operand 54 states and 61 transitions. Second operand 3 states. [2020-10-20 05:48:40,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:48:40,145 INFO L93 Difference]: Finished difference Result 53 states and 59 transitions. [2020-10-20 05:48:40,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 05:48:40,146 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-20 05:48:40,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:48:40,147 INFO L225 Difference]: With dead ends: 53 [2020-10-20 05:48:40,148 INFO L226 Difference]: Without dead ends: 53 [2020-10-20 05:48:40,148 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 05:48:40,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-10-20 05:48:40,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2020-10-20 05:48:40,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-10-20 05:48:40,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 59 transitions. [2020-10-20 05:48:40,164 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 59 transitions. Word has length 10 [2020-10-20 05:48:40,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:48:40,164 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 59 transitions. [2020-10-20 05:48:40,165 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 05:48:40,165 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 59 transitions. [2020-10-20 05:48:40,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-20 05:48:40,167 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:48:40,170 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:48:40,389 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-20 05:48:40,390 INFO L429 AbstractCegarLoop]: === Iteration 3 === [test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr13REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr12REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-20 05:48:40,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:48:40,391 INFO L82 PathProgramCache]: Analyzing trace with hash 1562637391, now seen corresponding path program 1 times [2020-10-20 05:48:40,392 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:48:40,392 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [688607453] [2020-10-20 05:48:40,393 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 05:48:40,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:48:40,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-20 05:48:40,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:48:40,536 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 05:48:40,537 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:48:40,539 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:48:40,540 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 05:48:40,540 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-10-20 05:48:40,560 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 05:48:40,561 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:48:40,572 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 05:48:40,573 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [688607453] [2020-10-20 05:48:40,573 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:48:40,573 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2020-10-20 05:48:40,574 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834402279] [2020-10-20 05:48:40,574 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 05:48:40,574 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:48:40,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 05:48:40,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 05:48:40,575 INFO L87 Difference]: Start difference. First operand 53 states and 59 transitions. Second operand 5 states. [2020-10-20 05:48:40,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:48:40,818 INFO L93 Difference]: Finished difference Result 46 states and 52 transitions. [2020-10-20 05:48:40,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 05:48:40,819 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-20 05:48:40,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:48:40,821 INFO L225 Difference]: With dead ends: 46 [2020-10-20 05:48:40,821 INFO L226 Difference]: Without dead ends: 46 [2020-10-20 05:48:40,821 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 05:48:40,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-10-20 05:48:40,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2020-10-20 05:48:40,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-10-20 05:48:40,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 52 transitions. [2020-10-20 05:48:40,827 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 52 transitions. Word has length 13 [2020-10-20 05:48:40,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:48:40,827 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 52 transitions. [2020-10-20 05:48:40,828 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 05:48:40,828 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 52 transitions. [2020-10-20 05:48:40,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-20 05:48:40,839 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:48:40,839 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:48:41,039 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-20 05:48:41,040 INFO L429 AbstractCegarLoop]: === Iteration 4 === [test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr13REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr12REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-20 05:48:41,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:48:41,041 INFO L82 PathProgramCache]: Analyzing trace with hash 1562637392, now seen corresponding path program 1 times [2020-10-20 05:48:41,043 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:48:41,044 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [239098781] [2020-10-20 05:48:41,044 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 05:48:41,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:48:41,126 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-20 05:48:41,128 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:48:41,158 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 05:48:41,158 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:48:41,171 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:48:41,174 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [239098781] [2020-10-20 05:48:41,175 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 05:48:41,175 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2052286916] [2020-10-20 05:48:41,175 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 05:48:41,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:48:41,347 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 05:48:41,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:48:41,373 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 05:48:41,373 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:48:41,406 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 05:48:41,406 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:48:41,406 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-10-20 05:48:41,406 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569426879] [2020-10-20 05:48:41,407 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 05:48:41,407 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:48:41,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 05:48:41,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-20 05:48:41,408 INFO L87 Difference]: Start difference. First operand 46 states and 52 transitions. Second operand 6 states. [2020-10-20 05:48:41,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:48:41,503 INFO L93 Difference]: Finished difference Result 48 states and 53 transitions. [2020-10-20 05:48:41,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 05:48:41,505 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2020-10-20 05:48:41,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:48:41,506 INFO L225 Difference]: With dead ends: 48 [2020-10-20 05:48:41,506 INFO L226 Difference]: Without dead ends: 48 [2020-10-20 05:48:41,506 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 05:48:41,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-10-20 05:48:41,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 44. [2020-10-20 05:48:41,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-10-20 05:48:41,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 49 transitions. [2020-10-20 05:48:41,512 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 49 transitions. Word has length 13 [2020-10-20 05:48:41,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:48:41,513 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 49 transitions. [2020-10-20 05:48:41,513 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 05:48:41,513 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 49 transitions. [2020-10-20 05:48:41,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-20 05:48:41,514 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:48:41,514 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:48:41,915 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 05:48:41,916 INFO L429 AbstractCegarLoop]: === Iteration 5 === [test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr13REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr12REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-20 05:48:41,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:48:41,917 INFO L82 PathProgramCache]: Analyzing trace with hash 1988481478, now seen corresponding path program 1 times [2020-10-20 05:48:41,917 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:48:41,918 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1159572680] [2020-10-20 05:48:41,918 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 05:48:42,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:48:42,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 05:48:42,006 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:48:42,035 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 05:48:42,036 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:48:42,097 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 05:48:42,098 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1159572680] [2020-10-20 05:48:42,098 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 05:48:42,098 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2020-10-20 05:48:42,099 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882227611] [2020-10-20 05:48:42,099 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-20 05:48:42,099 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:48:42,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-20 05:48:42,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-20 05:48:42,100 INFO L87 Difference]: Start difference. First operand 44 states and 49 transitions. Second operand 8 states. [2020-10-20 05:48:42,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:48:42,173 INFO L93 Difference]: Finished difference Result 54 states and 59 transitions. [2020-10-20 05:48:42,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 05:48:42,177 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 14 [2020-10-20 05:48:42,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:48:42,177 INFO L225 Difference]: With dead ends: 54 [2020-10-20 05:48:42,178 INFO L226 Difference]: Without dead ends: 54 [2020-10-20 05:48:42,178 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 05:48:42,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-10-20 05:48:42,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 50. [2020-10-20 05:48:42,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-10-20 05:48:42,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 55 transitions. [2020-10-20 05:48:42,184 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 55 transitions. Word has length 14 [2020-10-20 05:48:42,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:48:42,185 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 55 transitions. [2020-10-20 05:48:42,185 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-20 05:48:42,185 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 55 transitions. [2020-10-20 05:48:42,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-20 05:48:42,185 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:48:42,185 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:48:42,387 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-10-20 05:48:42,388 INFO L429 AbstractCegarLoop]: === Iteration 6 === [test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr13REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr12REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-20 05:48:42,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:48:42,389 INFO L82 PathProgramCache]: Analyzing trace with hash 1179134852, now seen corresponding path program 1 times [2020-10-20 05:48:42,389 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:48:42,390 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [477219569] [2020-10-20 05:48:42,391 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 05:48:42,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:48:42,473 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-20 05:48:42,475 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:48:42,526 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 05:48:42,526 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:48:42,545 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:48:42,546 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 05:48:42,546 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:22 [2020-10-20 05:48:42,645 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 05:48:42,645 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:48:43,026 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 05:48:43,027 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [477219569] [2020-10-20 05:48:43,027 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 05:48:43,027 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2020-10-20 05:48:43,027 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608305965] [2020-10-20 05:48:43,028 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-20 05:48:43,028 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:48:43,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-20 05:48:43,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-20 05:48:43,029 INFO L87 Difference]: Start difference. First operand 50 states and 55 transitions. Second operand 10 states. [2020-10-20 05:48:43,431 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2020-10-20 05:48:43,659 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2020-10-20 05:48:44,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:48:44,319 INFO L93 Difference]: Finished difference Result 70 states and 78 transitions. [2020-10-20 05:48:44,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-20 05:48:44,325 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 14 [2020-10-20 05:48:44,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:48:44,326 INFO L225 Difference]: With dead ends: 70 [2020-10-20 05:48:44,326 INFO L226 Difference]: Without dead ends: 70 [2020-10-20 05:48:44,327 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=78, Invalid=132, Unknown=0, NotChecked=0, Total=210 [2020-10-20 05:48:44,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-10-20 05:48:44,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 62. [2020-10-20 05:48:44,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-10-20 05:48:44,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 70 transitions. [2020-10-20 05:48:44,333 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 70 transitions. Word has length 14 [2020-10-20 05:48:44,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:48:44,334 INFO L481 AbstractCegarLoop]: Abstraction has 62 states and 70 transitions. [2020-10-20 05:48:44,334 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-20 05:48:44,334 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 70 transitions. [2020-10-20 05:48:44,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-20 05:48:44,335 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:48:44,335 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 05:48:44,536 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-10-20 05:48:44,536 INFO L429 AbstractCegarLoop]: === Iteration 7 === [test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr13REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr12REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-20 05:48:44,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:48:44,537 INFO L82 PathProgramCache]: Analyzing trace with hash -1631633365, now seen corresponding path program 1 times [2020-10-20 05:48:44,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:48:44,538 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [874115450] [2020-10-20 05:48:44,539 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 05:48:44,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:48:44,635 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-20 05:48:44,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:48:44,653 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 05:48:44,654 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:48:44,661 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:48:44,662 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 05:48:44,663 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-10-20 05:48:44,708 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 05:48:44,709 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:48:44,930 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 05:48:44,931 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [874115450] [2020-10-20 05:48:44,931 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:48:44,931 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2020-10-20 05:48:44,932 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139450634] [2020-10-20 05:48:44,932 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-20 05:48:44,932 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:48:44,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-20 05:48:44,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-20 05:48:44,933 INFO L87 Difference]: Start difference. First operand 62 states and 70 transitions. Second operand 10 states. [2020-10-20 05:48:45,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:48:45,897 INFO L93 Difference]: Finished difference Result 100 states and 116 transitions. [2020-10-20 05:48:45,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-20 05:48:45,900 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 17 [2020-10-20 05:48:45,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:48:45,903 INFO L225 Difference]: With dead ends: 100 [2020-10-20 05:48:45,903 INFO L226 Difference]: Without dead ends: 100 [2020-10-20 05:48:45,904 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 05:48:45,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2020-10-20 05:48:45,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 58. [2020-10-20 05:48:45,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-10-20 05:48:45,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 67 transitions. [2020-10-20 05:48:45,919 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 67 transitions. Word has length 17 [2020-10-20 05:48:45,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:48:45,920 INFO L481 AbstractCegarLoop]: Abstraction has 58 states and 67 transitions. [2020-10-20 05:48:45,920 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-20 05:48:45,920 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 67 transitions. [2020-10-20 05:48:45,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-20 05:48:45,922 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:48:45,922 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 05:48:46,134 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2020-10-20 05:48:46,135 INFO L429 AbstractCegarLoop]: === Iteration 8 === [test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr13REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr12REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-20 05:48:46,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:48:46,136 INFO L82 PathProgramCache]: Analyzing trace with hash -1844950364, now seen corresponding path program 1 times [2020-10-20 05:48:46,136 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:48:46,137 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1550442162] [2020-10-20 05:48:46,137 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 05:48:46,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:48:46,226 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-20 05:48:46,228 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:48:46,239 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1550442162] [2020-10-20 05:48:46,239 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 05:48:46,239 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2061979209] [2020-10-20 05:48:46,239 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 05:48:46,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:48:46,427 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-20 05:48:46,428 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:48:46,431 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 05:48:46,431 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1705939945] [2020-10-20 05:48:46,431 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 05:48:46,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:48:46,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-20 05:48:46,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:48:46,542 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 05:48:46,542 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:48:46,609 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 05:48:46,610 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:48:46,610 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2020-10-20 05:48:46,610 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284358494] [2020-10-20 05:48:46,610 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-20 05:48:46,611 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:48:46,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-20 05:48:46,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-20 05:48:46,612 INFO L87 Difference]: Start difference. First operand 58 states and 67 transitions. Second operand 7 states. [2020-10-20 05:48:46,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:48:46,789 INFO L93 Difference]: Finished difference Result 77 states and 88 transitions. [2020-10-20 05:48:46,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 05:48:46,796 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2020-10-20 05:48:46,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:48:46,797 INFO L225 Difference]: With dead ends: 77 [2020-10-20 05:48:46,797 INFO L226 Difference]: Without dead ends: 75 [2020-10-20 05:48:46,798 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 05:48:46,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-10-20 05:48:46,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 58. [2020-10-20 05:48:46,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-10-20 05:48:46,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 66 transitions. [2020-10-20 05:48:46,804 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 66 transitions. Word has length 20 [2020-10-20 05:48:46,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:48:46,804 INFO L481 AbstractCegarLoop]: Abstraction has 58 states and 66 transitions. [2020-10-20 05:48:46,804 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-20 05:48:46,804 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 66 transitions. [2020-10-20 05:48:46,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-20 05:48:46,805 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:48:46,806 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, 1] [2020-10-20 05:48:47,413 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 05:48:47,413 INFO L429 AbstractCegarLoop]: === Iteration 9 === [test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr13REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr12REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-20 05:48:47,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:48:47,414 INFO L82 PathProgramCache]: Analyzing trace with hash -1770810992, now seen corresponding path program 1 times [2020-10-20 05:48:47,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:48:47,416 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [611969781] [2020-10-20 05:48:47,416 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 05:48:47,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:48:47,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-20 05:48:47,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:48:47,563 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 05:48:47,563 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:48:47,691 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 05:48:47,691 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [611969781] [2020-10-20 05:48:47,691 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 05:48:47,692 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 11 [2020-10-20 05:48:47,692 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687188584] [2020-10-20 05:48:47,692 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-20 05:48:47,692 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:48:47,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-20 05:48:47,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-10-20 05:48:47,693 INFO L87 Difference]: Start difference. First operand 58 states and 66 transitions. Second operand 11 states. [2020-10-20 05:48:47,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:48:47,929 INFO L93 Difference]: Finished difference Result 81 states and 91 transitions. [2020-10-20 05:48:47,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 05:48:47,931 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 24 [2020-10-20 05:48:47,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:48:47,932 INFO L225 Difference]: With dead ends: 81 [2020-10-20 05:48:47,932 INFO L226 Difference]: Without dead ends: 81 [2020-10-20 05:48:47,932 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2020-10-20 05:48:47,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2020-10-20 05:48:47,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 78. [2020-10-20 05:48:47,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-10-20 05:48:47,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 89 transitions. [2020-10-20 05:48:47,938 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 89 transitions. Word has length 24 [2020-10-20 05:48:47,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:48:47,938 INFO L481 AbstractCegarLoop]: Abstraction has 78 states and 89 transitions. [2020-10-20 05:48:47,939 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-20 05:48:47,939 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 89 transitions. [2020-10-20 05:48:47,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-20 05:48:47,940 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:48:47,940 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, 1] [2020-10-20 05:48:48,148 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 mathsat -unsat_core_generation=3 [2020-10-20 05:48:48,149 INFO L429 AbstractCegarLoop]: === Iteration 10 === [test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr13REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr12REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-20 05:48:48,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:48:48,150 INFO L82 PathProgramCache]: Analyzing trace with hash 530011598, now seen corresponding path program 1 times [2020-10-20 05:48:48,150 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:48:48,151 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1638253848] [2020-10-20 05:48:48,151 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 05:48:48,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:48:48,248 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 16 conjunts are in the unsatisfiable core [2020-10-20 05:48:48,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:48:48,279 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 05:48:48,280 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:48:48,295 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:48:48,295 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 05:48:48,295 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:20, output treesize:19 [2020-10-20 05:48:48,470 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 05:48:48,470 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:48:48,709 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-10-20 05:48:50,510 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 05:48:50,511 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1638253848] [2020-10-20 05:48:50,511 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 05:48:50,511 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 14 [2020-10-20 05:48:50,511 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850510059] [2020-10-20 05:48:50,512 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-20 05:48:50,512 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:48:50,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-20 05:48:50,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2020-10-20 05:48:50,513 INFO L87 Difference]: Start difference. First operand 78 states and 89 transitions. Second operand 15 states. [2020-10-20 05:48:52,105 WARN L193 SmtUtils]: Spent 609.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 48 [2020-10-20 05:48:53,225 WARN L193 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 44 [2020-10-20 05:48:53,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:48:53,825 INFO L93 Difference]: Finished difference Result 127 states and 150 transitions. [2020-10-20 05:48:53,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-20 05:48:53,828 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 24 [2020-10-20 05:48:53,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:48:53,829 INFO L225 Difference]: With dead ends: 127 [2020-10-20 05:48:53,829 INFO L226 Difference]: Without dead ends: 127 [2020-10-20 05:48:53,830 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=119, Invalid=387, Unknown=0, NotChecked=0, Total=506 [2020-10-20 05:48:53,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2020-10-20 05:48:53,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 123. [2020-10-20 05:48:53,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-10-20 05:48:53,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 146 transitions. [2020-10-20 05:48:53,845 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 146 transitions. Word has length 24 [2020-10-20 05:48:53,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:48:53,847 INFO L481 AbstractCegarLoop]: Abstraction has 123 states and 146 transitions. [2020-10-20 05:48:53,848 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-20 05:48:53,848 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 146 transitions. [2020-10-20 05:48:53,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-20 05:48:53,849 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:48:53,849 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, 1] [2020-10-20 05:48:54,053 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 mathsat -unsat_core_generation=3 [2020-10-20 05:48:54,054 INFO L429 AbstractCegarLoop]: === Iteration 11 === [test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr13REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr12REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-20 05:48:54,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:48:54,054 INFO L82 PathProgramCache]: Analyzing trace with hash 852771615, now seen corresponding path program 1 times [2020-10-20 05:48:54,055 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:48:54,055 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [312312694] [2020-10-20 05:48:54,056 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 05:48:54,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:48:54,166 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-20 05:48:54,168 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:48:54,175 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 05:48:54,175 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:48:54,177 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:48:54,177 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 05:48:54,177 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-10-20 05:48:54,234 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:48:54,234 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 05:48:54,236 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:48:54,253 INFO L625 ElimStorePlain]: treesize reduction 10, result has 60.0 percent of original size [2020-10-20 05:48:54,254 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 05:48:54,256 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 05:48:54,256 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:15 [2020-10-20 05:48:54,256 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 05:48:54,272 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 05:48:54,286 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 05:48:54,309 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 05:48:54,331 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 05:48:54,350 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 05:48:54,368 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 05:48:54,382 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 05:48:54,395 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 05:48:54,407 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 05:48:54,419 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 05:48:54,430 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 05:48:54,454 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 05:48:54,455 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:48:56,575 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 05:48:56,575 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [312312694] [2020-10-20 05:48:56,576 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:48:56,576 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 8 [2020-10-20 05:48:56,576 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756216334] [2020-10-20 05:48:56,577 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-20 05:48:56,577 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:48:56,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-20 05:48:56,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=50, Unknown=1, NotChecked=0, Total=72 [2020-10-20 05:48:56,577 INFO L87 Difference]: Start difference. First operand 123 states and 146 transitions. Second operand 9 states. [2020-10-20 05:48:56,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:48:56,835 INFO L93 Difference]: Finished difference Result 122 states and 145 transitions. [2020-10-20 05:48:56,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 05:48:56,841 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 27 [2020-10-20 05:48:56,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:48:56,842 INFO L225 Difference]: With dead ends: 122 [2020-10-20 05:48:56,842 INFO L226 Difference]: Without dead ends: 92 [2020-10-20 05:48:56,843 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 35 SyntacticMatches, 12 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=34, Invalid=75, Unknown=1, NotChecked=0, Total=110 [2020-10-20 05:48:56,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-10-20 05:48:56,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2020-10-20 05:48:56,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2020-10-20 05:48:56,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 108 transitions. [2020-10-20 05:48:56,847 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 108 transitions. Word has length 27 [2020-10-20 05:48:56,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:48:56,847 INFO L481 AbstractCegarLoop]: Abstraction has 92 states and 108 transitions. [2020-10-20 05:48:56,848 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-20 05:48:56,848 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 108 transitions. [2020-10-20 05:48:56,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-20 05:48:56,849 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:48:56,849 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:48:57,059 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 mathsat -unsat_core_generation=3 [2020-10-20 05:48:57,059 INFO L429 AbstractCegarLoop]: === Iteration 12 === [test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr13REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr12REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-20 05:48:57,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:48:57,060 INFO L82 PathProgramCache]: Analyzing trace with hash -1374761523, now seen corresponding path program 2 times [2020-10-20 05:48:57,061 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:48:57,062 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1025430218] [2020-10-20 05:48:57,062 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 05:48:57,156 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-20 05:48:57,156 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-20 05:48:57,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 14 conjunts are in the unsatisfiable core [2020-10-20 05:48:57,161 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:48:57,180 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 05:48:57,180 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:48:57,203 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:48:57,203 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 05:48:57,204 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:22 [2020-10-20 05:48:57,503 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 05:48:57,503 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:48:58,570 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 05:48:58,571 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1025430218] [2020-10-20 05:48:58,571 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 05:48:58,571 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2020-10-20 05:48:58,571 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216852782] [2020-10-20 05:48:58,572 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-20 05:48:58,572 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:48:58,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-20 05:48:58,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=217, Unknown=0, NotChecked=0, Total=306 [2020-10-20 05:48:58,572 INFO L87 Difference]: Start difference. First operand 92 states and 108 transitions. Second operand 18 states. [2020-10-20 05:49:00,760 WARN L193 SmtUtils]: Spent 597.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-10-20 05:49:01,366 WARN L193 SmtUtils]: Spent 486.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2020-10-20 05:49:03,977 WARN L193 SmtUtils]: Spent 394.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2020-10-20 05:49:04,380 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2020-10-20 05:49:06,075 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2020-10-20 05:49:06,386 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2020-10-20 05:49:06,693 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2020-10-20 05:49:07,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:49:07,547 INFO L93 Difference]: Finished difference Result 124 states and 146 transitions. [2020-10-20 05:49:07,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-20 05:49:07,549 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 26 [2020-10-20 05:49:07,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:49:07,551 INFO L225 Difference]: With dead ends: 124 [2020-10-20 05:49:07,551 INFO L226 Difference]: Without dead ends: 124 [2020-10-20 05:49:07,552 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=311, Invalid=619, Unknown=0, NotChecked=0, Total=930 [2020-10-20 05:49:07,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-10-20 05:49:07,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 116. [2020-10-20 05:49:07,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2020-10-20 05:49:07,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 138 transitions. [2020-10-20 05:49:07,557 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 138 transitions. Word has length 26 [2020-10-20 05:49:07,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:49:07,557 INFO L481 AbstractCegarLoop]: Abstraction has 116 states and 138 transitions. [2020-10-20 05:49:07,557 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-20 05:49:07,557 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 138 transitions. [2020-10-20 05:49:07,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-20 05:49:07,559 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:49:07,559 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:49:07,759 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 mathsat -unsat_core_generation=3 [2020-10-20 05:49:07,760 INFO L429 AbstractCegarLoop]: === Iteration 13 === [test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr13REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr12REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-20 05:49:07,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:49:07,760 INFO L82 PathProgramCache]: Analyzing trace with hash 1774792557, now seen corresponding path program 2 times [2020-10-20 05:49:07,761 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:49:07,762 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [251091373] [2020-10-20 05:49:07,762 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 05:49:07,878 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-20 05:49:07,878 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-20 05:49:07,882 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 20 conjunts are in the unsatisfiable core [2020-10-20 05:49:07,884 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:49:07,904 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 05:49:07,904 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:49:07,920 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:49:07,920 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 05:49:07,921 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:22 [2020-10-20 05:49:08,010 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [251091373] [2020-10-20 05:49:08,010 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 05:49:08,010 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1397736338] [2020-10-20 05:49:08,011 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 05:49:08,272 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-20 05:49:08,272 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-20 05:49:08,274 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-20 05:49:08,276 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:49:08,451 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 25 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-20 05:49:08,451 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:49:08,648 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 25 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-20 05:49:08,648 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 05:49:08,648 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 15 [2020-10-20 05:49:08,649 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4643215] [2020-10-20 05:49:08,649 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-20 05:49:08,649 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:49:08,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-20 05:49:08,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2020-10-20 05:49:08,650 INFO L87 Difference]: Start difference. First operand 116 states and 138 transitions. Second operand 15 states. [2020-10-20 05:49:09,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:49:09,225 INFO L93 Difference]: Finished difference Result 134 states and 158 transitions. [2020-10-20 05:49:09,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-20 05:49:09,226 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 45 [2020-10-20 05:49:09,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:49:09,227 INFO L225 Difference]: With dead ends: 134 [2020-10-20 05:49:09,227 INFO L226 Difference]: Without dead ends: 116 [2020-10-20 05:49:09,228 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 86 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 05:49:09,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-10-20 05:49:09,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2020-10-20 05:49:09,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2020-10-20 05:49:09,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 137 transitions. [2020-10-20 05:49:09,232 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 137 transitions. Word has length 45 [2020-10-20 05:49:09,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:49:09,233 INFO L481 AbstractCegarLoop]: Abstraction has 116 states and 137 transitions. [2020-10-20 05:49:09,233 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-20 05:49:09,233 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 137 transitions. [2020-10-20 05:49:09,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-10-20 05:49:09,235 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:49:09,235 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:49:09,645 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 05:49:09,646 INFO L429 AbstractCegarLoop]: === Iteration 14 === [test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr13REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr12REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-20 05:49:09,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:49:09,647 INFO L82 PathProgramCache]: Analyzing trace with hash 629746890, now seen corresponding path program 3 times [2020-10-20 05:49:09,648 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:49:09,649 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [434867110] [2020-10-20 05:49:09,649 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 05:49:09,852 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2020-10-20 05:49:09,853 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-20 05:49:09,861 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 23 conjunts are in the unsatisfiable core [2020-10-20 05:49:09,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:49:09,883 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 05:49:09,883 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:49:09,900 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:49:09,901 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 05:49:09,901 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:22 [2020-10-20 05:49:10,104 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [434867110] [2020-10-20 05:49:10,104 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 05:49:10,104 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1971969005] [2020-10-20 05:49:10,105 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 05:49:10,516 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2020-10-20 05:49:10,516 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-20 05:49:10,519 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 24 conjunts are in the unsatisfiable core [2020-10-20 05:49:10,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:49:10,535 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 05:49:10,535 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:49:10,554 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:49:10,554 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 05:49:10,555 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:22 [2020-10-20 05:49:10,618 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 05:49:10,618 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1459560399] [2020-10-20 05:49:10,618 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 05:49:10,772 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2020-10-20 05:49:10,772 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-20 05:49:10,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 21 conjunts are in the unsatisfiable core [2020-10-20 05:49:10,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:49:10,792 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 05:49:10,792 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:49:10,811 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:49:10,811 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 05:49:10,812 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:22 [2020-10-20 05:49:10,866 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 05:49:10,866 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:49:10,867 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2020-10-20 05:49:10,867 ERROR L205 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2020-10-20 05:49:10,877 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 05:49:11,482 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 05:49:11,505 WARN L238 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-10-20 05:49:11,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 05:49:11 BoogieIcfgContainer [2020-10-20 05:49:11,506 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 05:49:11,506 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 05:49:11,506 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 05:49:11,507 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 05:49:11,507 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:48:38" (3/4) ... [2020-10-20 05:49:11,511 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 05:49:11,511 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 05:49:11,513 INFO L168 Benchmark]: Toolchain (without parser) took 34937.18 ms. Allocated memory was 41.4 MB in the beginning and 81.3 MB in the end (delta: 39.8 MB). Free memory was 20.0 MB in the beginning and 58.0 MB in the end (delta: -38.1 MB). Peak memory consumption was 1.8 MB. Max. memory is 14.3 GB. [2020-10-20 05:49:11,513 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 31.5 MB. Free memory was 8.8 MB in the beginning and 8.8 MB in the end (delta: 47.5 kB). Peak memory consumption was 47.5 kB. Max. memory is 14.3 GB. [2020-10-20 05:49:11,514 INFO L168 Benchmark]: CACSL2BoogieTranslator took 629.85 ms. Allocated memory was 41.4 MB in the beginning and 44.0 MB in the end (delta: 2.6 MB). Free memory was 19.1 MB in the beginning and 22.5 MB in the end (delta: -3.4 MB). Peak memory consumption was 9.8 MB. Max. memory is 14.3 GB. [2020-10-20 05:49:11,515 INFO L168 Benchmark]: Boogie Preprocessor took 79.19 ms. Allocated memory is still 44.0 MB. Free memory was 22.5 MB in the beginning and 19.5 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 14.3 GB. [2020-10-20 05:49:11,515 INFO L168 Benchmark]: RCFGBuilder took 903.09 ms. Allocated memory was 44.0 MB in the beginning and 46.7 MB in the end (delta: 2.6 MB). Free memory was 19.5 MB in the beginning and 26.9 MB in the end (delta: -7.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 14.3 GB. [2020-10-20 05:49:11,516 INFO L168 Benchmark]: TraceAbstraction took 33310.35 ms. Allocated memory was 46.7 MB in the beginning and 81.3 MB in the end (delta: 34.6 MB). Free memory was 26.6 MB in the beginning and 58.0 MB in the end (delta: -31.5 MB). Peak memory consumption was 55.4 MB. Max. memory is 14.3 GB. [2020-10-20 05:49:11,516 INFO L168 Benchmark]: Witness Printer took 5.14 ms. Allocated memory is still 81.3 MB. Free memory is still 58.0 MB. There was no memory consumed. Max. memory is 14.3 GB. [2020-10-20 05:49:11,519 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 31.5 MB. Free memory was 8.8 MB in the beginning and 8.8 MB in the end (delta: 47.5 kB). Peak memory consumption was 47.5 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 629.85 ms. Allocated memory was 41.4 MB in the beginning and 44.0 MB in the end (delta: 2.6 MB). Free memory was 19.1 MB in the beginning and 22.5 MB in the end (delta: -3.4 MB). Peak memory consumption was 9.8 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 79.19 ms. Allocated memory is still 44.0 MB. Free memory was 22.5 MB in the beginning and 19.5 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 14.3 GB. * RCFGBuilder took 903.09 ms. Allocated memory was 44.0 MB in the beginning and 46.7 MB in the end (delta: 2.6 MB). Free memory was 19.5 MB in the beginning and 26.9 MB in the end (delta: -7.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 14.3 GB. * TraceAbstraction took 33310.35 ms. Allocated memory was 46.7 MB in the beginning and 81.3 MB in the end (delta: 34.6 MB). Free memory was 26.6 MB in the beginning and 58.0 MB in the end (delta: -31.5 MB). Peak memory consumption was 55.4 MB. Max. memory is 14.3 GB. * Witness Printer took 5.14 ms. Allocated memory is still 81.3 MB. Free memory is still 58.0 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: [L531] int array_size = __VERIFIER_nondet_int(); [L532] COND FALSE !(array_size < 1 || array_size >= 2147483647 / sizeof(int)) [L535] int* numbers = (int*) __builtin_alloca (array_size * sizeof(int)); [L537] int k = 0; [L537] COND TRUE k < array_size [L539] numbers[k] = __VERIFIER_nondet_int() [L537] k++ [L537] COND TRUE k < array_size [L539] numbers[k] = __VERIFIER_nondet_int() [L537] k++ [L537] COND FALSE !(k < array_size) [L542] CALL test_fun(numbers, array_size) [L514] int i; [L515] int res; [L516] i = 0 [L516] COND TRUE i < N [L517] res = 1 [L518] EXPR a[i] [L518] COND TRUE a[i] == 0 [L519] res = 1 [L523] EXPR a[i] [L523] COND FALSE !(a[i] > 0) [L527] a[i] = res [L516] i++ [L516] COND TRUE i < N [L517] res = 1 [L518] EXPR a[i] [L518] COND TRUE a[i] == 0 [L519] res = 1 [L523] EXPR a[i] [L523] COND FALSE !(a[i] > 0) [L527] a[i] = res [L516] i++ [L516] COND TRUE i < N [L517] res = 1 [L518] EXPR a[i] [L518] COND TRUE a[i] == 0 [L519] res = 1 [L523] EXPR a[i] [L523] COND FALSE !(a[i] > 0) [L527] a[i] = res [L516] i++ [L516] COND TRUE i < N [L517] res = 1 [L518] EXPR a[i] [L518] COND TRUE a[i] == 0 [L519] res = 1 [L523] EXPR a[i] [L523] COND FALSE !(a[i] > 0) [L527] a[i] = res [L516] i++ [L516] COND TRUE i < N [L517] res = 1 [L518] a[i] - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 74 locations, 17 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 33.2s, OverallIterations: 14, TraceHistogramMax: 5, AutomataDifference: 17.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 466 SDtfs, 1076 SDslu, 1477 SDs, 0 SdLazy, 1269 SolverSat, 168 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 8.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 593 GetRequests, 436 SyntacticMatches, 12 SemanticMatches, 145 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 453 ImplicationChecksByTransitivity, 15.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=123occurred 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, 109 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 8.1s InterpolantComputationTime, 257 NumberOfCodeBlocks, 257 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 488 ConstructedInterpolants, 19 QuantifiedInterpolants, 95108 SizeOfPredicates, 48 NumberOfNonLiveVariables, 842 ConjunctsInSsa, 102 ConjunctsInUnsatCore, 26 InterpolantComputations, 14 PerfectInterpolantSequences, 114/194 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...