./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/array-memsafety-realloc/array-realloc-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-realloc/array-realloc-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 5ce6ab98ff3a344cbd8c93195b0f965c65d244bc ............................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/array-memsafety-realloc/array-realloc-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 5ce6ab98ff3a344cbd8c93195b0f965c65d244bc ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 05:52:06,343 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 05:52:06,346 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 05:52:06,391 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 05:52:06,392 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 05:52:06,407 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 05:52:06,408 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 05:52:06,411 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 05:52:06,414 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 05:52:06,417 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 05:52:06,418 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 05:52:06,421 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 05:52:06,422 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 05:52:06,425 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 05:52:06,430 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 05:52:06,431 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 05:52:06,432 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 05:52:06,436 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 05:52:06,439 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 05:52:06,441 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 05:52:06,445 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 05:52:06,447 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 05:52:06,449 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 05:52:06,450 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 05:52:06,456 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 05:52:06,458 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 05:52:06,458 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 05:52:06,459 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 05:52:06,461 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 05:52:06,462 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 05:52:06,462 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 05:52:06,463 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 05:52:06,474 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 05:52:06,475 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 05:52:06,477 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 05:52:06,477 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 05:52:06,478 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 05:52:06,479 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 05:52:06,479 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 05:52:06,480 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 05:52:06,481 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 05:52:06,482 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-10-20 05:52:06,504 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 05:52:06,504 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 05:52:06,505 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 05:52:06,506 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 05:52:06,506 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 05:52:06,506 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 05:52:06,507 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 05:52:06,507 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 05:52:06,507 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 05:52:06,508 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 05:52:06,508 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 05:52:06,508 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-20 05:52:06,508 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-20 05:52:06,509 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-20 05:52:06,509 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 05:52:06,509 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-20 05:52:06,509 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 05:52:06,510 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 05:52:06,510 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 05:52:06,510 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 05:52:06,511 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 05:52:06,511 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 05:52:06,511 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 05:52:06,511 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 05:52:06,512 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 05:52:06,512 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 05:52:06,512 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 05:52:06,513 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 05:52:06,513 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 -> 5ce6ab98ff3a344cbd8c93195b0f965c65d244bc [2020-10-20 05:52:06,739 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 05:52:06,751 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 05:52:06,755 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 05:52:06,757 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 05:52:06,757 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 05:52:06,758 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety-realloc/array-realloc-2.i [2020-10-20 05:52:06,821 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80641c20b/b39173104a94415d856cf8e49ed0fff3/FLAG0e9513f82 [2020-10-20 05:52:07,454 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 05:52:07,455 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety-realloc/array-realloc-2.i [2020-10-20 05:52:07,471 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80641c20b/b39173104a94415d856cf8e49ed0fff3/FLAG0e9513f82 [2020-10-20 05:52:07,786 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80641c20b/b39173104a94415d856cf8e49ed0fff3 [2020-10-20 05:52:07,790 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 05:52:07,795 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-20 05:52:07,796 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 05:52:07,797 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 05:52:07,800 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 05:52:07,801 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:52:07" (1/1) ... [2020-10-20 05:52:07,804 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d3928c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:52:07, skipping insertion in model container [2020-10-20 05:52:07,805 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:52:07" (1/1) ... [2020-10-20 05:52:07,812 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 05:52:07,868 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 05:52:08,179 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 05:52:08,198 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2020-10-20 05:52:08,199 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@60b07b9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:52:08, skipping insertion in model container [2020-10-20 05:52:08,199 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 05:52:08,200 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2020-10-20 05:52:08,203 INFO L168 Benchmark]: Toolchain (without parser) took 410.90 ms. Allocated memory was 41.9 MB in the beginning and 42.5 MB in the end (delta: 524.3 kB). Free memory was 20.1 MB in the beginning and 20.2 MB in the end (delta: -83.3 kB). Peak memory consumption was 10.8 MB. Max. memory is 14.3 GB. [2020-10-20 05:52:08,204 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 31.5 MB. Free memory was 8.9 MB in the beginning and 8.9 MB in the end (delta: 47.7 kB). Peak memory consumption was 47.7 kB. Max. memory is 14.3 GB. [2020-10-20 05:52:08,206 INFO L168 Benchmark]: CACSL2BoogieTranslator took 403.41 ms. Allocated memory was 41.9 MB in the beginning and 42.5 MB in the end (delta: 524.3 kB). Free memory was 19.2 MB in the beginning and 20.2 MB in the end (delta: -1.0 MB). Peak memory consumption was 9.9 MB. Max. memory is 14.3 GB. [2020-10-20 05:52:08,208 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 31.5 MB. Free memory was 8.9 MB in the beginning and 8.9 MB in the end (delta: 47.7 kB). Peak memory consumption was 47.7 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 403.41 ms. Allocated memory was 41.9 MB in the beginning and 42.5 MB in the end (delta: 524.3 kB). Free memory was 19.2 MB in the beginning and 20.2 MB in the end (delta: -1.0 MB). Peak memory consumption was 9.9 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 575]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 05:52:10,176 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 05:52:10,179 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 05:52:10,208 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 05:52:10,208 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 05:52:10,209 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 05:52:10,211 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 05:52:10,213 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 05:52:10,215 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 05:52:10,216 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 05:52:10,217 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 05:52:10,218 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 05:52:10,218 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 05:52:10,220 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 05:52:10,221 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 05:52:10,222 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 05:52:10,223 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 05:52:10,224 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 05:52:10,226 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 05:52:10,239 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 05:52:10,241 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 05:52:10,242 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 05:52:10,243 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 05:52:10,244 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 05:52:10,247 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 05:52:10,248 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 05:52:10,248 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 05:52:10,249 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 05:52:10,250 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 05:52:10,251 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 05:52:10,251 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 05:52:10,252 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 05:52:10,253 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 05:52:10,254 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 05:52:10,255 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 05:52:10,255 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 05:52:10,256 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 05:52:10,256 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 05:52:10,257 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 05:52:10,258 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 05:52:10,258 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 05:52:10,259 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2020-10-20 05:52:10,303 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 05:52:10,305 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 05:52:10,306 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 05:52:10,307 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 05:52:10,307 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 05:52:10,308 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 05:52:10,308 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 05:52:10,308 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 05:52:10,309 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 05:52:10,309 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 05:52:10,310 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 05:52:10,310 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-20 05:52:10,310 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-20 05:52:10,311 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-20 05:52:10,311 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 05:52:10,311 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-20 05:52:10,312 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-20 05:52:10,312 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-20 05:52:10,312 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 05:52:10,312 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 05:52:10,313 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 05:52:10,313 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 05:52:10,314 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 05:52:10,314 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 05:52:10,314 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 05:52:10,314 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 05:52:10,315 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 05:52:10,315 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-20 05:52:10,315 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-20 05:52:10,315 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 05:52:10,316 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-20 05:52:10,316 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 -> 5ce6ab98ff3a344cbd8c93195b0f965c65d244bc [2020-10-20 05:52:10,540 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 05:52:10,557 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 05:52:10,562 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 05:52:10,564 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 05:52:10,566 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 05:52:10,566 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety-realloc/array-realloc-2.i [2020-10-20 05:52:10,647 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/facb30f2e/3d5e099000ea4c0db173dec70c375c2b/FLAGfc68b218b [2020-10-20 05:52:11,201 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 05:52:11,202 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety-realloc/array-realloc-2.i [2020-10-20 05:52:11,215 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/facb30f2e/3d5e099000ea4c0db173dec70c375c2b/FLAGfc68b218b [2020-10-20 05:52:11,494 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/facb30f2e/3d5e099000ea4c0db173dec70c375c2b [2020-10-20 05:52:11,498 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 05:52:11,503 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-20 05:52:11,504 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 05:52:11,504 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 05:52:11,507 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 05:52:11,508 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:52:11" (1/1) ... [2020-10-20 05:52:11,511 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ba01c1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:52:11, skipping insertion in model container [2020-10-20 05:52:11,511 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:52:11" (1/1) ... [2020-10-20 05:52:11,519 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 05:52:11,569 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 05:52:11,939 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 05:52:11,955 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-10-20 05:52:11,973 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 05:52:12,003 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 05:52:12,010 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 05:52:12,062 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 05:52:12,134 INFO L208 MainTranslator]: Completed translation [2020-10-20 05:52:12,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:52:12 WrapperNode [2020-10-20 05:52:12,135 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 05:52:12,136 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 05:52:12,136 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 05:52:12,137 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 05:52:12,151 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:52:12" (1/1) ... [2020-10-20 05:52:12,152 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:52:12" (1/1) ... [2020-10-20 05:52:12,171 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:52:12" (1/1) ... [2020-10-20 05:52:12,172 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:52:12" (1/1) ... [2020-10-20 05:52:12,192 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:52:12" (1/1) ... [2020-10-20 05:52:12,199 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:52:12" (1/1) ... [2020-10-20 05:52:12,208 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:52:12" (1/1) ... [2020-10-20 05:52:12,221 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 05:52:12,222 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 05:52:12,222 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 05:52:12,223 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 05:52:12,224 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:52:12" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 05:52:12,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-20 05:52:12,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 05:52:12,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2020-10-20 05:52:12,291 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-20 05:52:12,291 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-20 05:52:12,292 INFO L138 BoogieDeclarations]: Found implementation of procedure expandArray [2020-10-20 05:52:12,292 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-20 05:52:12,292 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc [2020-10-20 05:52:12,292 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-20 05:52:12,292 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-20 05:52:12,293 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-20 05:52:12,293 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-20 05:52:12,293 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-20 05:52:12,293 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-20 05:52:12,294 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-20 05:52:12,294 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-20 05:52:12,294 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-20 05:52:12,294 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-20 05:52:12,295 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-20 05:52:12,295 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-20 05:52:12,295 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-20 05:52:12,295 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-20 05:52:12,295 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-20 05:52:12,296 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-20 05:52:12,296 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-20 05:52:12,296 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-20 05:52:12,305 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-20 05:52:12,305 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-20 05:52:12,305 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-20 05:52:12,305 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-20 05:52:12,306 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-20 05:52:12,306 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-20 05:52:12,306 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-20 05:52:12,306 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-20 05:52:12,306 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-20 05:52:12,307 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-20 05:52:12,307 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-20 05:52:12,307 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-20 05:52:12,307 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-20 05:52:12,307 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-20 05:52:12,308 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-20 05:52:12,308 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-20 05:52:12,308 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-20 05:52:12,308 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-20 05:52:12,308 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-20 05:52:12,309 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-20 05:52:12,309 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-20 05:52:12,309 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-20 05:52:12,309 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-20 05:52:12,309 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-20 05:52:12,310 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-20 05:52:12,310 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-20 05:52:12,310 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-20 05:52:12,310 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-20 05:52:12,311 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-20 05:52:12,311 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-20 05:52:12,311 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-20 05:52:12,311 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-20 05:52:12,311 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-20 05:52:12,312 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-20 05:52:12,312 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-20 05:52:12,312 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-20 05:52:12,312 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-20 05:52:12,312 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-20 05:52:12,313 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-10-20 05:52:12,313 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-20 05:52:12,313 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-20 05:52:12,313 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-20 05:52:12,313 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-20 05:52:12,314 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-20 05:52:12,314 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-20 05:52:12,314 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-20 05:52:12,314 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-20 05:52:12,315 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-20 05:52:12,315 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-20 05:52:12,315 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-20 05:52:12,315 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-20 05:52:12,315 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-20 05:52:12,316 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-20 05:52:12,316 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-20 05:52:12,316 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-20 05:52:12,316 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-20 05:52:12,316 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-20 05:52:12,317 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-20 05:52:12,317 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-20 05:52:12,317 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-20 05:52:12,317 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-20 05:52:12,317 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-20 05:52:12,318 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-20 05:52:12,318 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-20 05:52:12,318 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-20 05:52:12,318 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-20 05:52:12,318 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-20 05:52:12,319 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-20 05:52:12,319 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-20 05:52:12,319 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-20 05:52:12,319 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-20 05:52:12,319 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-20 05:52:12,320 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-20 05:52:12,320 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-20 05:52:12,320 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-20 05:52:12,320 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-20 05:52:12,320 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-20 05:52:12,321 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-20 05:52:12,321 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-20 05:52:12,321 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-20 05:52:12,321 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-20 05:52:12,321 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-20 05:52:12,322 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-20 05:52:12,322 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-20 05:52:12,322 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-20 05:52:12,322 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-20 05:52:12,322 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-20 05:52:12,323 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-20 05:52:12,323 INFO L130 BoogieDeclarations]: Found specification of procedure expandArray [2020-10-20 05:52:12,323 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc [2020-10-20 05:52:12,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-20 05:52:12,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-20 05:52:12,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-20 05:52:12,324 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-20 05:52:12,324 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-20 05:52:12,324 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 05:52:12,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-20 05:52:12,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 05:52:12,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-20 05:52:12,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 05:52:12,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2020-10-20 05:52:12,326 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-20 05:52:13,018 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 05:52:13,018 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-20 05:52:13,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:52:13 BoogieIcfgContainer [2020-10-20 05:52:13,020 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 05:52:13,021 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 05:52:13,021 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 05:52:13,025 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 05:52:13,025 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 05:52:11" (1/3) ... [2020-10-20 05:52:13,026 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ce30f4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:52:13, skipping insertion in model container [2020-10-20 05:52:13,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:52:12" (2/3) ... [2020-10-20 05:52:13,027 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ce30f4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:52:13, skipping insertion in model container [2020-10-20 05:52:13,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:52:13" (3/3) ... [2020-10-20 05:52:13,029 INFO L111 eAbstractionObserver]: Analyzing ICFG array-realloc-2.i [2020-10-20 05:52:13,042 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 05:52:13,050 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 14 error locations. [2020-10-20 05:52:13,065 INFO L253 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2020-10-20 05:52:13,087 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 05:52:13,087 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-20 05:52:13,088 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 05:52:13,088 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 05:52:13,088 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 05:52:13,088 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 05:52:13,088 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 05:52:13,089 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 05:52:13,116 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states. [2020-10-20 05:52:13,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-20 05:52:13,125 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:52:13,125 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:52:13,126 INFO L429 AbstractCegarLoop]: === Iteration 1 === [mainErr2REQUIRES_VIOLATION, mainErr7ENSURES_VIOLATIONMEMORY_LEAK, mainErr3REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr4REQUIRES_VIOLATION, expandArrayErr3REQUIRES_VIOLATION, expandArrayErr2REQUIRES_VIOLATION, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION, expandArrayErr5REQUIRES_VIOLATION]=== [2020-10-20 05:52:13,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:52:13,132 INFO L82 PathProgramCache]: Analyzing trace with hash -1082177389, now seen corresponding path program 1 times [2020-10-20 05:52:13,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:52:13,142 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [407616699] [2020-10-20 05:52:13,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-10-20 05:52:13,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:52:13,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 05:52:13,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:52:13,373 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 05:52:13,375 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:52:13,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:52:13,401 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [407616699] [2020-10-20 05:52:13,402 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:52:13,403 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-20 05:52:13,404 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27876020] [2020-10-20 05:52:13,410 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 05:52:13,410 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:52:13,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 05:52:13,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 05:52:13,430 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 3 states. [2020-10-20 05:52:13,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:52:13,611 INFO L93 Difference]: Finished difference Result 56 states and 62 transitions. [2020-10-20 05:52:13,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 05:52:13,613 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-20 05:52:13,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:52:13,624 INFO L225 Difference]: With dead ends: 56 [2020-10-20 05:52:13,624 INFO L226 Difference]: Without dead ends: 52 [2020-10-20 05:52:13,626 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 05:52:13,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-20 05:52:13,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 44. [2020-10-20 05:52:13,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-10-20 05:52:13,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 47 transitions. [2020-10-20 05:52:13,675 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 47 transitions. Word has length 8 [2020-10-20 05:52:13,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:52:13,676 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 47 transitions. [2020-10-20 05:52:13,676 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 05:52:13,676 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 47 transitions. [2020-10-20 05:52:13,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-20 05:52:13,677 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:52:13,677 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:52:13,898 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-20 05:52:13,899 INFO L429 AbstractCegarLoop]: === Iteration 2 === [mainErr2REQUIRES_VIOLATION, mainErr7ENSURES_VIOLATIONMEMORY_LEAK, mainErr3REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr4REQUIRES_VIOLATION, expandArrayErr3REQUIRES_VIOLATION, expandArrayErr2REQUIRES_VIOLATION, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION, expandArrayErr5REQUIRES_VIOLATION]=== [2020-10-20 05:52:13,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:52:13,899 INFO L82 PathProgramCache]: Analyzing trace with hash -1082177376, now seen corresponding path program 1 times [2020-10-20 05:52:13,900 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:52:13,900 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1220257582] [2020-10-20 05:52:13,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-10-20 05:52:14,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:52:14,042 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 05:52:14,045 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:52:14,121 INFO L350 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2020-10-20 05:52:14,122 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 1 case distinctions, treesize of input 9 treesize of output 11 [2020-10-20 05:52:14,123 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:52:14,129 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:52:14,135 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 05:52:14,136 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:9, output treesize:11 [2020-10-20 05:52:14,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:52:14,149 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:52:14,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:52:14,164 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1220257582] [2020-10-20 05:52:14,164 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:52:14,164 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-20 05:52:14,164 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453650194] [2020-10-20 05:52:14,166 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 05:52:14,166 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:52:14,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 05:52:14,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 05:52:14,167 INFO L87 Difference]: Start difference. First operand 44 states and 47 transitions. Second operand 3 states. [2020-10-20 05:52:14,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:52:14,261 INFO L93 Difference]: Finished difference Result 43 states and 46 transitions. [2020-10-20 05:52:14,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 05:52:14,261 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-20 05:52:14,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:52:14,263 INFO L225 Difference]: With dead ends: 43 [2020-10-20 05:52:14,263 INFO L226 Difference]: Without dead ends: 43 [2020-10-20 05:52:14,264 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 05:52:14,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-10-20 05:52:14,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2020-10-20 05:52:14,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-10-20 05:52:14,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 46 transitions. [2020-10-20 05:52:14,270 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 46 transitions. Word has length 8 [2020-10-20 05:52:14,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:52:14,270 INFO L481 AbstractCegarLoop]: Abstraction has 43 states and 46 transitions. [2020-10-20 05:52:14,270 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 05:52:14,270 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 46 transitions. [2020-10-20 05:52:14,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-20 05:52:14,271 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:52:14,271 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:52:14,472 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-20 05:52:14,473 INFO L429 AbstractCegarLoop]: === Iteration 3 === [mainErr2REQUIRES_VIOLATION, mainErr7ENSURES_VIOLATIONMEMORY_LEAK, mainErr3REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr4REQUIRES_VIOLATION, expandArrayErr3REQUIRES_VIOLATION, expandArrayErr2REQUIRES_VIOLATION, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION, expandArrayErr5REQUIRES_VIOLATION]=== [2020-10-20 05:52:14,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:52:14,475 INFO L82 PathProgramCache]: Analyzing trace with hash -1082177375, now seen corresponding path program 1 times [2020-10-20 05:52:14,475 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:52:14,476 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1023529390] [2020-10-20 05:52:14,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-10-20 05:52:14,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:52:14,594 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-20 05:52:14,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:52:14,622 INFO L350 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2020-10-20 05:52:14,623 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 1 case distinctions, treesize of input 9 treesize of output 11 [2020-10-20 05:52:14,624 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:52:14,634 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:52:14,636 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 05:52:14,636 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:13, output treesize:14 [2020-10-20 05:52:14,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:52:14,659 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:52:14,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:52:14,720 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1023529390] [2020-10-20 05:52:14,720 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:52:14,720 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2020-10-20 05:52:14,720 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852996987] [2020-10-20 05:52:14,721 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 05:52:14,721 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:52:14,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 05:52:14,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-20 05:52:14,722 INFO L87 Difference]: Start difference. First operand 43 states and 46 transitions. Second operand 4 states. [2020-10-20 05:52:14,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:52:14,916 INFO L93 Difference]: Finished difference Result 42 states and 45 transitions. [2020-10-20 05:52:14,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 05:52:14,917 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-10-20 05:52:14,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:52:14,918 INFO L225 Difference]: With dead ends: 42 [2020-10-20 05:52:14,919 INFO L226 Difference]: Without dead ends: 42 [2020-10-20 05:52:14,919 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-20 05:52:14,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-10-20 05:52:14,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-10-20 05:52:14,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-10-20 05:52:14,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 45 transitions. [2020-10-20 05:52:14,925 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 45 transitions. Word has length 8 [2020-10-20 05:52:14,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:52:14,925 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 45 transitions. [2020-10-20 05:52:14,925 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 05:52:14,925 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 45 transitions. [2020-10-20 05:52:14,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-20 05:52:14,926 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:52:14,926 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:52:15,138 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-20 05:52:15,139 INFO L429 AbstractCegarLoop]: === Iteration 4 === [mainErr2REQUIRES_VIOLATION, mainErr7ENSURES_VIOLATIONMEMORY_LEAK, mainErr3REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr4REQUIRES_VIOLATION, expandArrayErr3REQUIRES_VIOLATION, expandArrayErr2REQUIRES_VIOLATION, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION, expandArrayErr5REQUIRES_VIOLATION]=== [2020-10-20 05:52:15,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:52:15,139 INFO L82 PathProgramCache]: Analyzing trace with hash -590372339, now seen corresponding path program 1 times [2020-10-20 05:52:15,140 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:52:15,140 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1695204661] [2020-10-20 05:52:15,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-10-20 05:52:15,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:52:15,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 05:52:15,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:52:15,272 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2020-10-20 05:52:15,274 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:52:15,276 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:52:15,277 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-20 05:52:15,277 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:16, output treesize:4 [2020-10-20 05:52:15,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:52:15,289 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:52:15,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:52:15,300 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1695204661] [2020-10-20 05:52:15,300 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:52:15,300 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2020-10-20 05:52:15,300 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811082186] [2020-10-20 05:52:15,301 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 05:52:15,301 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:52:15,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 05:52:15,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 05:52:15,301 INFO L87 Difference]: Start difference. First operand 42 states and 45 transitions. Second operand 4 states. [2020-10-20 05:52:15,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:52:15,385 INFO L93 Difference]: Finished difference Result 42 states and 44 transitions. [2020-10-20 05:52:15,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 05:52:15,387 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-10-20 05:52:15,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:52:15,388 INFO L225 Difference]: With dead ends: 42 [2020-10-20 05:52:15,404 INFO L226 Difference]: Without dead ends: 42 [2020-10-20 05:52:15,405 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 05:52:15,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-10-20 05:52:15,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-10-20 05:52:15,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-10-20 05:52:15,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 44 transitions. [2020-10-20 05:52:15,411 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 44 transitions. Word has length 10 [2020-10-20 05:52:15,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:52:15,411 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 44 transitions. [2020-10-20 05:52:15,411 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 05:52:15,411 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 44 transitions. [2020-10-20 05:52:15,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-20 05:52:15,412 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:52:15,412 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:52:15,624 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-10-20 05:52:15,625 INFO L429 AbstractCegarLoop]: === Iteration 5 === [mainErr2REQUIRES_VIOLATION, mainErr7ENSURES_VIOLATIONMEMORY_LEAK, mainErr3REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr4REQUIRES_VIOLATION, expandArrayErr3REQUIRES_VIOLATION, expandArrayErr2REQUIRES_VIOLATION, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION, expandArrayErr5REQUIRES_VIOLATION]=== [2020-10-20 05:52:15,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:52:15,626 INFO L82 PathProgramCache]: Analyzing trace with hash 110807657, now seen corresponding path program 1 times [2020-10-20 05:52:15,627 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:52:15,627 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1573729091] [2020-10-20 05:52:15,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-10-20 05:52:15,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:52:15,740 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-20 05:52:15,742 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:52:15,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:52:15,779 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:52:15,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:52:15,804 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1573729091] [2020-10-20 05:52:15,804 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:52:15,804 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2020-10-20 05:52:15,804 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855010237] [2020-10-20 05:52:15,805 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 05:52:15,805 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:52:15,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 05:52:15,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 05:52:15,805 INFO L87 Difference]: Start difference. First operand 42 states and 44 transitions. Second operand 5 states. [2020-10-20 05:52:16,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:52:16,012 INFO L93 Difference]: Finished difference Result 53 states and 57 transitions. [2020-10-20 05:52:16,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 05:52:16,013 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-20 05:52:16,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:52:16,014 INFO L225 Difference]: With dead ends: 53 [2020-10-20 05:52:16,014 INFO L226 Difference]: Without dead ends: 53 [2020-10-20 05:52:16,015 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 21 SyntacticMatches, 1 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 05:52:16,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-10-20 05:52:16,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 47. [2020-10-20 05:52:16,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-10-20 05:52:16,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 51 transitions. [2020-10-20 05:52:16,021 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 51 transitions. Word has length 13 [2020-10-20 05:52:16,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:52:16,022 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 51 transitions. [2020-10-20 05:52:16,022 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 05:52:16,022 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 51 transitions. [2020-10-20 05:52:16,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-20 05:52:16,023 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:52:16,023 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:52:16,236 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-10-20 05:52:16,236 INFO L429 AbstractCegarLoop]: === Iteration 6 === [mainErr2REQUIRES_VIOLATION, mainErr7ENSURES_VIOLATIONMEMORY_LEAK, mainErr3REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr4REQUIRES_VIOLATION, expandArrayErr3REQUIRES_VIOLATION, expandArrayErr2REQUIRES_VIOLATION, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION, expandArrayErr5REQUIRES_VIOLATION]=== [2020-10-20 05:52:16,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:52:16,236 INFO L82 PathProgramCache]: Analyzing trace with hash 110807658, now seen corresponding path program 1 times [2020-10-20 05:52:16,237 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:52:16,237 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1182386447] [2020-10-20 05:52:16,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-10-20 05:52:16,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:52:16,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 9 conjunts are in the unsatisfiable core [2020-10-20 05:52:16,354 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:52:16,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:52:16,429 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:52:16,590 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-20 05:52:16,602 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2020-10-20 05:52:16,604 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-20 05:52:16,629 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:52:16,630 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 05:52:16,631 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:14, output treesize:12 [2020-10-20 05:52:16,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:52:16,706 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1182386447] [2020-10-20 05:52:16,706 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:52:16,706 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2020-10-20 05:52:16,706 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205426976] [2020-10-20 05:52:16,707 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-20 05:52:16,707 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:52:16,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-20 05:52:16,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-10-20 05:52:16,707 INFO L87 Difference]: Start difference. First operand 47 states and 51 transitions. Second operand 10 states. [2020-10-20 05:52:17,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:52:17,108 INFO L93 Difference]: Finished difference Result 50 states and 54 transitions. [2020-10-20 05:52:17,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 05:52:17,109 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 13 [2020-10-20 05:52:17,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:52:17,110 INFO L225 Difference]: With dead ends: 50 [2020-10-20 05:52:17,110 INFO L226 Difference]: Without dead ends: 50 [2020-10-20 05:52:17,111 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-20 05:52:17,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-10-20 05:52:17,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 46. [2020-10-20 05:52:17,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-10-20 05:52:17,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 49 transitions. [2020-10-20 05:52:17,117 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 49 transitions. Word has length 13 [2020-10-20 05:52:17,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:52:17,117 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 49 transitions. [2020-10-20 05:52:17,117 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-20 05:52:17,117 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 49 transitions. [2020-10-20 05:52:17,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-20 05:52:17,118 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:52:17,118 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:52:17,320 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-10-20 05:52:17,323 INFO L429 AbstractCegarLoop]: === Iteration 7 === [mainErr2REQUIRES_VIOLATION, mainErr7ENSURES_VIOLATIONMEMORY_LEAK, mainErr3REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr4REQUIRES_VIOLATION, expandArrayErr3REQUIRES_VIOLATION, expandArrayErr2REQUIRES_VIOLATION, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION, expandArrayErr5REQUIRES_VIOLATION]=== [2020-10-20 05:52:17,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:52:17,323 INFO L82 PathProgramCache]: Analyzing trace with hash 697428619, now seen corresponding path program 1 times [2020-10-20 05:52:17,324 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:52:17,324 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2029847262] [2020-10-20 05:52:17,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2020-10-20 05:52:17,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:52:17,441 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-20 05:52:17,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:52:17,497 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-10-20 05:52:17,498 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:52:17,500 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:52:17,501 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-20 05:52:17,501 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:15, output treesize:3 [2020-10-20 05:52:17,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:52:17,510 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:52:17,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:52:17,616 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2029847262] [2020-10-20 05:52:17,616 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:52:17,616 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2020-10-20 05:52:17,616 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073615305] [2020-10-20 05:52:17,617 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 05:52:17,617 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:52:17,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 05:52:17,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-20 05:52:17,618 INFO L87 Difference]: Start difference. First operand 46 states and 49 transitions. Second operand 6 states. [2020-10-20 05:52:17,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:52:17,843 INFO L93 Difference]: Finished difference Result 68 states and 73 transitions. [2020-10-20 05:52:17,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 05:52:17,844 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-10-20 05:52:17,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:52:17,845 INFO L225 Difference]: With dead ends: 68 [2020-10-20 05:52:17,845 INFO L226 Difference]: Without dead ends: 68 [2020-10-20 05:52:17,846 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-20 05:52:17,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-10-20 05:52:17,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 57. [2020-10-20 05:52:17,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-10-20 05:52:17,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 65 transitions. [2020-10-20 05:52:17,853 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 65 transitions. Word has length 18 [2020-10-20 05:52:17,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:52:17,853 INFO L481 AbstractCegarLoop]: Abstraction has 57 states and 65 transitions. [2020-10-20 05:52:17,853 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 05:52:17,853 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 65 transitions. [2020-10-20 05:52:17,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-20 05:52:17,855 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:52:17,855 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 05:52:18,067 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-10-20 05:52:18,068 INFO L429 AbstractCegarLoop]: === Iteration 8 === [mainErr2REQUIRES_VIOLATION, mainErr7ENSURES_VIOLATIONMEMORY_LEAK, mainErr3REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr4REQUIRES_VIOLATION, expandArrayErr3REQUIRES_VIOLATION, expandArrayErr2REQUIRES_VIOLATION, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION, expandArrayErr5REQUIRES_VIOLATION]=== [2020-10-20 05:52:18,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:52:18,068 INFO L82 PathProgramCache]: Analyzing trace with hash -1280916511, now seen corresponding path program 1 times [2020-10-20 05:52:18,069 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:52:18,069 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [585575518] [2020-10-20 05:52:18,070 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 05:52:18,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:52:18,199 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-20 05:52:18,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:52:18,242 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2020-10-20 05:52:18,243 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:52:18,245 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:52:18,245 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-20 05:52:18,246 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:16, output treesize:4 [2020-10-20 05:52:18,260 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [585575518] [2020-10-20 05:52:18,261 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 05:52:18,261 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1947491536] [2020-10-20 05:52:18,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-20 05:52:18,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:52:18,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 13 conjunts are in the unsatisfiable core [2020-10-20 05:52:18,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:52:18,556 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2020-10-20 05:52:18,557 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:52:18,559 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:52:18,559 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-20 05:52:18,560 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:16, output treesize:4 [2020-10-20 05:52:18,561 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 05:52:18,561 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1539991992] [2020-10-20 05:52:18,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 05:52:18,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:52:18,680 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 05:52:18,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:52:18,699 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-10-20 05:52:18,699 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:52:18,701 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:52:18,701 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 05:52:18,701 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-10-20 05:52:18,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:52:18,749 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:52:18,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:52:18,780 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:52:18,780 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2020-10-20 05:52:18,780 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052809538] [2020-10-20 05:52:18,780 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 05:52:18,780 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:52:18,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 05:52:18,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-20 05:52:18,781 INFO L87 Difference]: Start difference. First operand 57 states and 65 transitions. Second operand 5 states. [2020-10-20 05:52:18,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:52:18,909 INFO L93 Difference]: Finished difference Result 56 states and 64 transitions. [2020-10-20 05:52:18,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 05:52:18,910 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2020-10-20 05:52:18,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:52:18,912 INFO L225 Difference]: With dead ends: 56 [2020-10-20 05:52:18,912 INFO L226 Difference]: Without dead ends: 56 [2020-10-20 05:52:18,912 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-20 05:52:18,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-10-20 05:52:18,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2020-10-20 05:52:18,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-10-20 05:52:18,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 64 transitions. [2020-10-20 05:52:18,920 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 64 transitions. Word has length 20 [2020-10-20 05:52:18,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:52:18,920 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 64 transitions. [2020-10-20 05:52:18,920 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 05:52:18,921 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 64 transitions. [2020-10-20 05:52:18,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-20 05:52:18,921 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:52:18,922 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 05:52:19,524 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3,10 cvc4 --incremental --print-success --lang smt --rewrite-divk,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 05:52:19,525 INFO L429 AbstractCegarLoop]: === Iteration 9 === [mainErr2REQUIRES_VIOLATION, mainErr7ENSURES_VIOLATIONMEMORY_LEAK, mainErr3REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr4REQUIRES_VIOLATION, expandArrayErr3REQUIRES_VIOLATION, expandArrayErr2REQUIRES_VIOLATION, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION, expandArrayErr5REQUIRES_VIOLATION]=== [2020-10-20 05:52:19,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:52:19,526 INFO L82 PathProgramCache]: Analyzing trace with hash -1280916510, now seen corresponding path program 1 times [2020-10-20 05:52:19,526 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:52:19,526 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1564534714] [2020-10-20 05:52:19,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2020-10-20 05:52:19,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:52:19,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-20 05:52:19,659 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:52:19,703 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2020-10-20 05:52:19,704 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:52:19,711 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:52:19,712 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-20 05:52:19,712 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:16, output treesize:4 [2020-10-20 05:52:19,721 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1564534714] [2020-10-20 05:52:19,721 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 05:52:19,721 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1061297817] [2020-10-20 05:52:19,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-20 05:52:19,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:52:19,974 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 13 conjunts are in the unsatisfiable core [2020-10-20 05:52:19,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:52:20,034 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2020-10-20 05:52:20,035 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:52:20,038 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:52:20,038 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-20 05:52:20,039 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:16, output treesize:4 [2020-10-20 05:52:20,040 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 05:52:20,040 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [318829523] [2020-10-20 05:52:20,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 05:52:20,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:52:20,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-20 05:52:20,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:52:20,163 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2020-10-20 05:52:20,163 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:52:20,165 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:52:20,166 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-20 05:52:20,166 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:16, output treesize:4 [2020-10-20 05:52:20,167 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 05:52:20,167 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:52:20,167 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2020-10-20 05:52:20,168 ERROR L205 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2020-10-20 05:52:20,168 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 05:52:20,774 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,13 cvc4 --incremental --print-success --lang smt --rewrite-divk,12 mathsat -unsat_core_generation=3 [2020-10-20 05:52:20,787 WARN L238 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-10-20 05:52:20,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 05:52:20 BoogieIcfgContainer [2020-10-20 05:52:20,788 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 05:52:20,788 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 05:52:20,788 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 05:52:20,789 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 05:52:20,789 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:52:13" (3/4) ... [2020-10-20 05:52:20,793 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 05:52:20,793 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 05:52:20,794 INFO L168 Benchmark]: Toolchain (without parser) took 9295.32 ms. Allocated memory was 35.7 MB in the beginning and 78.1 MB in the end (delta: 42.5 MB). Free memory was 13.7 MB in the beginning and 43.2 MB in the end (delta: -29.5 MB). Peak memory consumption was 13.0 MB. Max. memory is 14.3 GB. [2020-10-20 05:52:20,795 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 34.1 MB. Free memory was 9.6 MB in the beginning and 9.6 MB in the end (delta: 44.0 kB). Peak memory consumption was 44.0 kB. Max. memory is 14.3 GB. [2020-10-20 05:52:20,796 INFO L168 Benchmark]: CACSL2BoogieTranslator took 631.65 ms. Allocated memory was 35.7 MB in the beginning and 46.1 MB in the end (delta: 10.5 MB). Free memory was 12.9 MB in the beginning and 19.4 MB in the end (delta: -6.5 MB). Peak memory consumption was 12.2 MB. Max. memory is 14.3 GB. [2020-10-20 05:52:20,797 INFO L168 Benchmark]: Boogie Preprocessor took 85.72 ms. Allocated memory is still 46.1 MB. Free memory was 19.4 MB in the beginning and 16.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 14.3 GB. [2020-10-20 05:52:20,800 INFO L168 Benchmark]: RCFGBuilder took 798.06 ms. Allocated memory was 46.1 MB in the beginning and 48.2 MB in the end (delta: 2.1 MB). Free memory was 16.0 MB in the beginning and 15.4 MB in the end (delta: 607.9 kB). Peak memory consumption was 7.1 MB. Max. memory is 14.3 GB. [2020-10-20 05:52:20,801 INFO L168 Benchmark]: TraceAbstraction took 7766.67 ms. Allocated memory was 48.2 MB in the beginning and 78.1 MB in the end (delta: 29.9 MB). Free memory was 15.1 MB in the beginning and 44.1 MB in the end (delta: -29.0 MB). Peak memory consumption was 905.2 kB. Max. memory is 14.3 GB. [2020-10-20 05:52:20,803 INFO L168 Benchmark]: Witness Printer took 4.59 ms. Allocated memory is still 78.1 MB. Free memory was 43.2 MB in the beginning and 43.2 MB in the end (delta: 24 B). Peak memory consumption was 24 B. Max. memory is 14.3 GB. [2020-10-20 05:52:20,807 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 34.1 MB. Free memory was 9.6 MB in the beginning and 9.6 MB in the end (delta: 44.0 kB). Peak memory consumption was 44.0 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 631.65 ms. Allocated memory was 35.7 MB in the beginning and 46.1 MB in the end (delta: 10.5 MB). Free memory was 12.9 MB in the beginning and 19.4 MB in the end (delta: -6.5 MB). Peak memory consumption was 12.2 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 85.72 ms. Allocated memory is still 46.1 MB. Free memory was 19.4 MB in the beginning and 16.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 14.3 GB. * RCFGBuilder took 798.06 ms. Allocated memory was 46.1 MB in the beginning and 48.2 MB in the end (delta: 2.1 MB). Free memory was 16.0 MB in the beginning and 15.4 MB in the end (delta: 607.9 kB). Peak memory consumption was 7.1 MB. Max. memory is 14.3 GB. * TraceAbstraction took 7766.67 ms. Allocated memory was 48.2 MB in the beginning and 78.1 MB in the end (delta: 29.9 MB). Free memory was 15.1 MB in the beginning and 44.1 MB in the end (delta: -29.0 MB). Peak memory consumption was 905.2 kB. Max. memory is 14.3 GB. * Witness Printer took 4.59 ms. Allocated memory is still 78.1 MB. Free memory was 43.2 MB in the beginning and 43.2 MB in the end (delta: 24 B). Peak memory consumption was 24 B. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 562]: 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: [L556] int num, ind, newsize, i = 1; [L571] num = __VERIFIER_nondet_int() [L572] COND FALSE !(!(num > 0 && num < 100)) [L575] int *a = (int *)malloc(sizeof(int)); [L575] int *a = (int *)malloc(sizeof(int)); [L576] EXPR \read(*a) [L576] COND FALSE !(a == ((void *)0)) [L579] newsize = 0 [L580] CALL expandArray(&a) [L558] COND TRUE newsize < num [L559] newsize = newsize + 1 [L560] EXPR \read(**pointer) [L560] EXPR, FCALL realloc(*pointer, sizeof(int) * newsize) [L560] int *temp = realloc(*pointer, sizeof(int) * newsize); [L561] COND TRUE temp != ((void *)0) [L562] temp[newsize - 1] = i - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 59 locations, 14 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 7.6s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 313 SDtfs, 140 SDslu, 562 SDs, 0 SdLazy, 378 SolverSat, 32 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 219 GetRequests, 182 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=57occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 29 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 180 ConstructedInterpolants, 5 QuantifiedInterpolants, 8142 SizeOfPredicates, 23 NumberOfNonLiveVariables, 674 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...