./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 906a4fb5 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/array-memsafety-realloc/array-realloc-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 -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/array-memsafety-realloc/array-realloc-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 0.1.25-906a4fb [2020-10-19 17:59:16,372 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 17:59:16,376 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 17:59:16,421 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 17:59:16,421 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 17:59:16,435 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 17:59:16,437 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 17:59:16,439 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 17:59:16,443 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 17:59:16,445 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 17:59:16,446 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 17:59:16,448 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 17:59:16,449 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 17:59:16,449 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 17:59:16,450 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 17:59:16,451 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 17:59:16,456 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 17:59:16,457 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 17:59:16,459 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 17:59:16,465 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 17:59:16,466 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 17:59:16,468 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 17:59:16,470 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 17:59:16,472 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 17:59:16,477 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 17:59:16,478 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 17:59:16,479 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 17:59:16,480 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 17:59:16,482 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 17:59:16,483 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 17:59:16,483 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 17:59:16,484 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 17:59:16,485 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 17:59:16,486 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 17:59:16,487 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 17:59:16,488 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 17:59:16,489 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 17:59:16,489 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 17:59:16,489 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 17:59:16,490 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 17:59:16,492 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 17:59:16,492 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-10-19 17:59:16,537 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 17:59:16,537 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 17:59:16,539 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 17:59:16,539 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 17:59:16,540 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 17:59:16,540 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 17:59:16,540 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 17:59:16,541 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 17:59:16,541 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 17:59:16,541 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 17:59:16,542 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 17:59:16,543 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-19 17:59:16,543 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-19 17:59:16,543 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-19 17:59:16,544 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 17:59:16,544 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-19 17:59:16,544 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 17:59:16,544 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 17:59:16,545 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 17:59:16,545 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 17:59:16,545 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 17:59:16,546 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 17:59:16,546 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 17:59:16,546 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 17:59:16,546 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 17:59:16,547 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 17:59:16,547 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-19 17:59:16,547 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 17:59:16,547 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 [2020-10-19 17:59:16,878 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 17:59:16,891 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 17:59:16,896 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 17:59:16,897 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 17:59:16,898 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 17:59:16,899 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety-realloc/array-realloc-2.i [2020-10-19 17:59:16,976 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f8d5245d/284dd371c5ba46dcbdfd8f1f16f739f6/FLAG3e0b244e2 [2020-10-19 17:59:17,507 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 17:59:17,508 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety-realloc/array-realloc-2.i [2020-10-19 17:59:17,522 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f8d5245d/284dd371c5ba46dcbdfd8f1f16f739f6/FLAG3e0b244e2 [2020-10-19 17:59:17,761 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f8d5245d/284dd371c5ba46dcbdfd8f1f16f739f6 [2020-10-19 17:59:17,764 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 17:59:17,770 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-19 17:59:17,771 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 17:59:17,772 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 17:59:17,775 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 17:59:17,776 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 05:59:17" (1/1) ... [2020-10-19 17:59:17,779 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3380c406 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:59:17, skipping insertion in model container [2020-10-19 17:59:17,780 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 05:59:17" (1/1) ... [2020-10-19 17:59:17,788 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 17:59:17,846 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 17:59:18,238 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 17:59:18,262 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) [2020-10-19 17:59:18,263 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1bc64368 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:59:18, skipping insertion in model container [2020-10-19 17:59:18,263 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 17:59:18,264 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2020-10-19 17:59:18,268 INFO L168 Benchmark]: Toolchain (without parser) took 500.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 958.6 MB in the beginning and 1.1 GB in the end (delta: -177.8 MB). Peak memory consumption was 26.4 MB. Max. memory is 11.5 GB. [2020-10-19 17:59:18,270 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 17:59:18,273 INFO L168 Benchmark]: CACSL2BoogieTranslator took 492.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 953.2 MB in the beginning and 1.1 GB in the end (delta: -183.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 11.5 GB. [2020-10-19 17:59:18,276 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 492.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 953.2 MB in the beginning and 1.1 GB in the end (delta: -183.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 11.5 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 0.1.25-906a4fb [2020-10-19 17:59:20,047 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 17:59:20,050 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 17:59:20,090 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 17:59:20,091 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 17:59:20,100 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 17:59:20,103 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 17:59:20,107 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 17:59:20,110 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 17:59:20,114 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 17:59:20,116 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 17:59:20,118 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 17:59:20,118 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 17:59:20,122 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 17:59:20,123 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 17:59:20,125 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 17:59:20,127 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 17:59:20,128 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 17:59:20,131 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 17:59:20,139 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 17:59:20,141 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 17:59:20,142 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 17:59:20,144 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 17:59:20,145 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 17:59:20,158 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 17:59:20,164 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 17:59:20,164 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 17:59:20,166 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 17:59:20,166 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 17:59:20,170 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 17:59:20,170 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 17:59:20,171 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 17:59:20,172 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 17:59:20,175 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 17:59:20,176 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 17:59:20,177 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 17:59:20,178 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 17:59:20,178 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 17:59:20,178 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 17:59:20,179 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 17:59:20,180 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 17:59:20,182 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2020-10-19 17:59:20,227 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 17:59:20,227 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 17:59:20,229 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 17:59:20,230 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 17:59:20,230 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 17:59:20,230 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 17:59:20,231 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 17:59:20,231 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 17:59:20,231 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 17:59:20,231 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 17:59:20,233 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 17:59:20,233 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-19 17:59:20,233 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-19 17:59:20,234 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-19 17:59:20,234 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 17:59:20,234 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-19 17:59:20,235 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-19 17:59:20,235 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-19 17:59:20,235 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 17:59:20,235 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 17:59:20,236 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 17:59:20,236 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 17:59:20,236 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 17:59:20,237 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 17:59:20,237 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 17:59:20,237 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 17:59:20,237 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 17:59:20,238 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-19 17:59:20,238 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-19 17:59:20,238 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 17:59:20,239 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-19 17:59:20,239 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 [2020-10-19 17:59:20,575 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 17:59:20,589 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 17:59:20,593 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 17:59:20,594 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 17:59:20,595 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 17:59:20,596 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety-realloc/array-realloc-2.i [2020-10-19 17:59:20,660 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e35df020/04e00d5cf25b4720ad3ebad6494549cb/FLAG61748bcae [2020-10-19 17:59:21,191 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 17:59:21,192 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety-realloc/array-realloc-2.i [2020-10-19 17:59:21,206 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e35df020/04e00d5cf25b4720ad3ebad6494549cb/FLAG61748bcae [2020-10-19 17:59:21,496 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e35df020/04e00d5cf25b4720ad3ebad6494549cb [2020-10-19 17:59:21,499 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 17:59:21,507 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-19 17:59:21,508 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 17:59:21,508 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 17:59:21,513 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 17:59:21,514 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 05:59:21" (1/1) ... [2020-10-19 17:59:21,517 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@339487e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:59:21, skipping insertion in model container [2020-10-19 17:59:21,517 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 05:59:21" (1/1) ... [2020-10-19 17:59:21,525 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 17:59:21,576 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 17:59:22,011 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 17:59:22,030 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-10-19 17:59:22,038 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 17:59:22,066 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 17:59:22,074 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 17:59:22,136 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 17:59:22,207 INFO L208 MainTranslator]: Completed translation [2020-10-19 17:59:22,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:59:22 WrapperNode [2020-10-19 17:59:22,209 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 17:59:22,210 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 17:59:22,210 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 17:59:22,210 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 17:59:22,222 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:59:22" (1/1) ... [2020-10-19 17:59:22,222 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:59:22" (1/1) ... [2020-10-19 17:59:22,244 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:59:22" (1/1) ... [2020-10-19 17:59:22,245 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:59:22" (1/1) ... [2020-10-19 17:59:22,267 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:59:22" (1/1) ... [2020-10-19 17:59:22,272 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:59:22" (1/1) ... [2020-10-19 17:59:22,277 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:59:22" (1/1) ... [2020-10-19 17:59:22,285 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 17:59:22,286 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 17:59:22,286 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 17:59:22,287 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 17:59:22,288 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:59:22" (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 [2020-10-19 17:59:22,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-19 17:59:22,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 17:59:22,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2020-10-19 17:59:22,357 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-19 17:59:22,358 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-19 17:59:22,358 INFO L138 BoogieDeclarations]: Found implementation of procedure expandArray [2020-10-19 17:59:22,358 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-19 17:59:22,359 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc [2020-10-19 17:59:22,359 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-19 17:59:22,359 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-19 17:59:22,360 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-19 17:59:22,360 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-19 17:59:22,361 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-19 17:59:22,361 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-19 17:59:22,362 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-19 17:59:22,362 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-19 17:59:22,363 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-19 17:59:22,363 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-19 17:59:22,363 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-19 17:59:22,365 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-19 17:59:22,366 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-19 17:59:22,366 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-19 17:59:22,366 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-19 17:59:22,366 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-19 17:59:22,367 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-19 17:59:22,367 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-19 17:59:22,367 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-19 17:59:22,367 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-19 17:59:22,367 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-19 17:59:22,367 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-19 17:59:22,368 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-19 17:59:22,368 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-19 17:59:22,368 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-19 17:59:22,368 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-19 17:59:22,368 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-19 17:59:22,368 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-19 17:59:22,369 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-19 17:59:22,369 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-19 17:59:22,369 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-19 17:59:22,369 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-19 17:59:22,369 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-19 17:59:22,369 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-19 17:59:22,369 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-19 17:59:22,369 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-19 17:59:22,369 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-19 17:59:22,370 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-19 17:59:22,370 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-19 17:59:22,370 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-19 17:59:22,370 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-19 17:59:22,370 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-19 17:59:22,370 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-19 17:59:22,370 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-19 17:59:22,371 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-19 17:59:22,371 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-19 17:59:22,371 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-19 17:59:22,371 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-19 17:59:22,371 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-19 17:59:22,371 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-19 17:59:22,371 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-19 17:59:22,372 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-19 17:59:22,372 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-19 17:59:22,372 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-19 17:59:22,373 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-19 17:59:22,373 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-19 17:59:22,373 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-10-19 17:59:22,373 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-19 17:59:22,374 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-19 17:59:22,374 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-19 17:59:22,374 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-19 17:59:22,374 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-19 17:59:22,375 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-19 17:59:22,376 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-19 17:59:22,376 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-19 17:59:22,376 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-19 17:59:22,376 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-19 17:59:22,376 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-19 17:59:22,376 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-19 17:59:22,376 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-19 17:59:22,376 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-19 17:59:22,377 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-19 17:59:22,377 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-19 17:59:22,377 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-19 17:59:22,378 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-19 17:59:22,378 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-19 17:59:22,378 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-19 17:59:22,378 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-19 17:59:22,378 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-19 17:59:22,378 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-19 17:59:22,378 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-19 17:59:22,378 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-19 17:59:22,378 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-19 17:59:22,378 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-19 17:59:22,379 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-19 17:59:22,379 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-19 17:59:22,379 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-19 17:59:22,379 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-19 17:59:22,379 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-19 17:59:22,379 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-19 17:59:22,379 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-19 17:59:22,379 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-19 17:59:22,379 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-19 17:59:22,380 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-19 17:59:22,380 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-19 17:59:22,380 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-19 17:59:22,380 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-19 17:59:22,380 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-19 17:59:22,380 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-19 17:59:22,380 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-19 17:59:22,380 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-19 17:59:22,380 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-19 17:59:22,381 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-19 17:59:22,382 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-19 17:59:22,382 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-19 17:59:22,382 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-19 17:59:22,382 INFO L130 BoogieDeclarations]: Found specification of procedure expandArray [2020-10-19 17:59:22,382 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc [2020-10-19 17:59:22,382 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-19 17:59:22,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-19 17:59:22,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-19 17:59:22,383 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-19 17:59:22,383 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-19 17:59:22,383 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 17:59:22,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-19 17:59:22,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-19 17:59:22,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-19 17:59:22,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 17:59:22,389 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2020-10-19 17:59:22,389 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-19 17:59:23,062 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 17:59:23,063 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-19 17:59:23,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 05:59:23 BoogieIcfgContainer [2020-10-19 17:59:23,065 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 17:59:23,066 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 17:59:23,067 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 17:59:23,070 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 17:59:23,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 05:59:21" (1/3) ... [2020-10-19 17:59:23,072 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4efe5de2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 05:59:23, skipping insertion in model container [2020-10-19 17:59:23,072 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:59:22" (2/3) ... [2020-10-19 17:59:23,072 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4efe5de2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 05:59:23, skipping insertion in model container [2020-10-19 17:59:23,073 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 05:59:23" (3/3) ... [2020-10-19 17:59:23,074 INFO L111 eAbstractionObserver]: Analyzing ICFG array-realloc-2.i [2020-10-19 17:59:23,087 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 17:59:23,095 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 14 error locations. [2020-10-19 17:59:23,109 INFO L253 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2020-10-19 17:59:23,130 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 17:59:23,130 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-19 17:59:23,130 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 17:59:23,131 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 17:59:23,131 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 17:59:23,131 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 17:59:23,131 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 17:59:23,132 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 17:59:23,147 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states. [2020-10-19 17:59:23,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-19 17:59:23,157 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 17:59:23,157 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 17:59:23,158 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]=== [2020-10-19 17:59:23,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 17:59:23,164 INFO L82 PathProgramCache]: Analyzing trace with hash -1082177389, now seen corresponding path program 1 times [2020-10-19 17:59:23,177 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 17:59:23,178 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [344686121] [2020-10-19 17:59:23,178 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 [2020-10-19 17:59:23,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:59:23,338 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 17:59:23,344 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:59:23,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 17:59:23,386 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 17:59:23,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 17:59:23,400 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [344686121] [2020-10-19 17:59:23,401 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 17:59:23,401 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-19 17:59:23,403 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653497431] [2020-10-19 17:59:23,408 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 17:59:23,409 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 17:59:23,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 17:59:23,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 17:59:23,428 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 3 states. [2020-10-19 17:59:23,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 17:59:23,586 INFO L93 Difference]: Finished difference Result 56 states and 62 transitions. [2020-10-19 17:59:23,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 17:59:23,589 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-19 17:59:23,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 17:59:23,602 INFO L225 Difference]: With dead ends: 56 [2020-10-19 17:59:23,602 INFO L226 Difference]: Without dead ends: 52 [2020-10-19 17:59:23,604 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 [2020-10-19 17:59:23,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-19 17:59:23,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 44. [2020-10-19 17:59:23,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-10-19 17:59:23,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 47 transitions. [2020-10-19 17:59:23,681 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 47 transitions. Word has length 8 [2020-10-19 17:59:23,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 17:59:23,682 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 47 transitions. [2020-10-19 17:59:23,682 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 17:59:23,682 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 47 transitions. [2020-10-19 17:59:23,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-19 17:59:23,683 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 17:59:23,683 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 17:59:23,897 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-19 17:59:23,898 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]=== [2020-10-19 17:59:23,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 17:59:23,899 INFO L82 PathProgramCache]: Analyzing trace with hash -1082177376, now seen corresponding path program 1 times [2020-10-19 17:59:23,900 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 17:59:23,900 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [129118102] [2020-10-19 17:59:23,900 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 [2020-10-19 17:59:24,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:59:24,030 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 17:59:24,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:59:24,106 INFO L350 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2020-10-19 17:59:24,107 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 [2020-10-19 17:59:24,108 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 17:59:24,115 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 17:59:24,122 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. [2020-10-19 17:59:24,123 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:9, output treesize:11 [2020-10-19 17:59:24,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 17:59:24,138 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 17:59:24,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 17:59:24,159 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [129118102] [2020-10-19 17:59:24,159 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 17:59:24,159 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-19 17:59:24,160 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866100379] [2020-10-19 17:59:24,162 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 17:59:24,162 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 17:59:24,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 17:59:24,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 17:59:24,163 INFO L87 Difference]: Start difference. First operand 44 states and 47 transitions. Second operand 3 states. [2020-10-19 17:59:24,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 17:59:24,255 INFO L93 Difference]: Finished difference Result 43 states and 46 transitions. [2020-10-19 17:59:24,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 17:59:24,256 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-19 17:59:24,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 17:59:24,257 INFO L225 Difference]: With dead ends: 43 [2020-10-19 17:59:24,257 INFO L226 Difference]: Without dead ends: 43 [2020-10-19 17:59:24,259 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 [2020-10-19 17:59:24,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-10-19 17:59:24,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2020-10-19 17:59:24,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-10-19 17:59:24,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 46 transitions. [2020-10-19 17:59:24,267 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 46 transitions. Word has length 8 [2020-10-19 17:59:24,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 17:59:24,268 INFO L481 AbstractCegarLoop]: Abstraction has 43 states and 46 transitions. [2020-10-19 17:59:24,268 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 17:59:24,268 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 46 transitions. [2020-10-19 17:59:24,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-19 17:59:24,269 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 17:59:24,269 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 17:59:24,482 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-19 17:59:24,482 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]=== [2020-10-19 17:59:24,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 17:59:24,483 INFO L82 PathProgramCache]: Analyzing trace with hash -1082177375, now seen corresponding path program 1 times [2020-10-19 17:59:24,485 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 17:59:24,486 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [686401313] [2020-10-19 17:59:24,486 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 [2020-10-19 17:59:24,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:59:24,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-19 17:59:24,612 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:59:24,645 INFO L350 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2020-10-19 17:59:24,646 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 [2020-10-19 17:59:24,647 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 17:59:24,657 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 17:59:24,659 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. [2020-10-19 17:59:24,659 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:13, output treesize:14 [2020-10-19 17:59:24,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 17:59:24,679 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 17:59:24,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 17:59:24,737 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [686401313] [2020-10-19 17:59:24,737 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 17:59:24,738 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2020-10-19 17:59:24,738 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092924519] [2020-10-19 17:59:24,738 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 17:59:24,739 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 17:59:24,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 17:59:24,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 17:59:24,739 INFO L87 Difference]: Start difference. First operand 43 states and 46 transitions. Second operand 4 states. [2020-10-19 17:59:24,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 17:59:24,904 INFO L93 Difference]: Finished difference Result 42 states and 45 transitions. [2020-10-19 17:59:24,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 17:59:24,905 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-10-19 17:59:24,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 17:59:24,907 INFO L225 Difference]: With dead ends: 42 [2020-10-19 17:59:24,907 INFO L226 Difference]: Without dead ends: 42 [2020-10-19 17:59:24,907 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 [2020-10-19 17:59:24,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-10-19 17:59:24,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-10-19 17:59:24,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-10-19 17:59:24,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 45 transitions. [2020-10-19 17:59:24,915 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 45 transitions. Word has length 8 [2020-10-19 17:59:24,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 17:59:24,915 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 45 transitions. [2020-10-19 17:59:24,916 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 17:59:24,916 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 45 transitions. [2020-10-19 17:59:24,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-19 17:59:24,917 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 17:59:24,917 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 17:59:25,128 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-19 17:59:25,129 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]=== [2020-10-19 17:59:25,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 17:59:25,130 INFO L82 PathProgramCache]: Analyzing trace with hash -590372339, now seen corresponding path program 1 times [2020-10-19 17:59:25,131 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 17:59:25,132 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [603118492] [2020-10-19 17:59:25,132 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 [2020-10-19 17:59:25,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:59:25,255 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 17:59:25,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:59:25,280 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 [2020-10-19 17:59:25,282 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 17:59:25,284 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 17:59:25,285 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-19 17:59:25,285 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:16, output treesize:4 [2020-10-19 17:59:25,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 17:59:25,292 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 17:59:25,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 17:59:25,302 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [603118492] [2020-10-19 17:59:25,303 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 17:59:25,303 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2020-10-19 17:59:25,303 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365152238] [2020-10-19 17:59:25,304 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 17:59:25,304 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 17:59:25,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 17:59:25,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 17:59:25,304 INFO L87 Difference]: Start difference. First operand 42 states and 45 transitions. Second operand 4 states. [2020-10-19 17:59:25,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 17:59:25,392 INFO L93 Difference]: Finished difference Result 42 states and 44 transitions. [2020-10-19 17:59:25,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 17:59:25,394 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-10-19 17:59:25,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 17:59:25,395 INFO L225 Difference]: With dead ends: 42 [2020-10-19 17:59:25,395 INFO L226 Difference]: Without dead ends: 42 [2020-10-19 17:59:25,396 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 [2020-10-19 17:59:25,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-10-19 17:59:25,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-10-19 17:59:25,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-10-19 17:59:25,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 44 transitions. [2020-10-19 17:59:25,401 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 44 transitions. Word has length 10 [2020-10-19 17:59:25,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 17:59:25,402 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 44 transitions. [2020-10-19 17:59:25,402 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 17:59:25,402 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 44 transitions. [2020-10-19 17:59:25,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-19 17:59:25,403 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 17:59:25,403 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 17:59:25,614 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-10-19 17:59:25,615 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]=== [2020-10-19 17:59:25,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 17:59:25,617 INFO L82 PathProgramCache]: Analyzing trace with hash 110807657, now seen corresponding path program 1 times [2020-10-19 17:59:25,618 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 17:59:25,618 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1342747072] [2020-10-19 17:59:25,618 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 [2020-10-19 17:59:25,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:59:25,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-19 17:59:25,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:59:25,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 17:59:25,775 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 17:59:25,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 17:59:25,795 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1342747072] [2020-10-19 17:59:25,796 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 17:59:25,796 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2020-10-19 17:59:25,796 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211699065] [2020-10-19 17:59:25,796 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-19 17:59:25,797 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 17:59:25,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-19 17:59:25,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 17:59:25,798 INFO L87 Difference]: Start difference. First operand 42 states and 44 transitions. Second operand 5 states. [2020-10-19 17:59:26,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 17:59:26,010 INFO L93 Difference]: Finished difference Result 53 states and 57 transitions. [2020-10-19 17:59:26,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-19 17:59:26,011 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-19 17:59:26,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 17:59:26,012 INFO L225 Difference]: With dead ends: 53 [2020-10-19 17:59:26,012 INFO L226 Difference]: Without dead ends: 53 [2020-10-19 17:59:26,013 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 [2020-10-19 17:59:26,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-10-19 17:59:26,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 47. [2020-10-19 17:59:26,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-10-19 17:59:26,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 51 transitions. [2020-10-19 17:59:26,021 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 51 transitions. Word has length 13 [2020-10-19 17:59:26,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 17:59:26,022 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 51 transitions. [2020-10-19 17:59:26,022 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-19 17:59:26,022 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 51 transitions. [2020-10-19 17:59:26,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-19 17:59:26,023 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 17:59:26,023 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 17:59:26,237 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-10-19 17:59:26,238 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]=== [2020-10-19 17:59:26,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 17:59:26,239 INFO L82 PathProgramCache]: Analyzing trace with hash 110807658, now seen corresponding path program 1 times [2020-10-19 17:59:26,239 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 17:59:26,240 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2111827534] [2020-10-19 17:59:26,240 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 [2020-10-19 17:59:26,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:59:26,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 9 conjunts are in the unsatisfiable core [2020-10-19 17:59:26,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:59:26,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 17:59:26,439 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 17:59:26,620 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-19 17:59:26,635 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 [2020-10-19 17:59:26,637 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-19 17:59:26,657 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 17:59:26,658 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. [2020-10-19 17:59:26,660 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:14, output treesize:12 [2020-10-19 17:59:26,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 17:59:26,720 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2111827534] [2020-10-19 17:59:26,720 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 17:59:26,721 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2020-10-19 17:59:26,721 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407874209] [2020-10-19 17:59:26,722 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-19 17:59:26,722 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 17:59:26,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-19 17:59:26,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-10-19 17:59:26,722 INFO L87 Difference]: Start difference. First operand 47 states and 51 transitions. Second operand 10 states. [2020-10-19 17:59:27,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 17:59:27,100 INFO L93 Difference]: Finished difference Result 50 states and 54 transitions. [2020-10-19 17:59:27,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-19 17:59:27,101 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 13 [2020-10-19 17:59:27,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 17:59:27,102 INFO L225 Difference]: With dead ends: 50 [2020-10-19 17:59:27,102 INFO L226 Difference]: Without dead ends: 50 [2020-10-19 17:59:27,103 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 [2020-10-19 17:59:27,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-10-19 17:59:27,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 46. [2020-10-19 17:59:27,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-10-19 17:59:27,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 49 transitions. [2020-10-19 17:59:27,110 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 49 transitions. Word has length 13 [2020-10-19 17:59:27,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 17:59:27,110 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 49 transitions. [2020-10-19 17:59:27,111 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-19 17:59:27,111 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 49 transitions. [2020-10-19 17:59:27,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-19 17:59:27,112 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 17:59:27,112 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 17:59:27,314 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-10-19 17:59:27,315 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]=== [2020-10-19 17:59:27,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 17:59:27,316 INFO L82 PathProgramCache]: Analyzing trace with hash 697428619, now seen corresponding path program 1 times [2020-10-19 17:59:27,316 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 17:59:27,317 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [146829399] [2020-10-19 17:59:27,318 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 [2020-10-19 17:59:27,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:59:27,422 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-19 17:59:27,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:59:27,452 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 [2020-10-19 17:59:27,453 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 17:59:27,456 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 17:59:27,456 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-19 17:59:27,456 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:15, output treesize:3 [2020-10-19 17:59:27,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 17:59:27,464 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 17:59:27,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 17:59:27,525 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [146829399] [2020-10-19 17:59:27,526 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 17:59:27,526 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2020-10-19 17:59:27,526 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305427493] [2020-10-19 17:59:27,527 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-19 17:59:27,527 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 17:59:27,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-19 17:59:27,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-19 17:59:27,527 INFO L87 Difference]: Start difference. First operand 46 states and 49 transitions. Second operand 6 states. [2020-10-19 17:59:27,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 17:59:27,742 INFO L93 Difference]: Finished difference Result 68 states and 73 transitions. [2020-10-19 17:59:27,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-19 17:59:27,742 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-10-19 17:59:27,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 17:59:27,743 INFO L225 Difference]: With dead ends: 68 [2020-10-19 17:59:27,744 INFO L226 Difference]: Without dead ends: 68 [2020-10-19 17:59:27,744 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 [2020-10-19 17:59:27,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-10-19 17:59:27,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 57. [2020-10-19 17:59:27,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-10-19 17:59:27,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 65 transitions. [2020-10-19 17:59:27,756 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 65 transitions. Word has length 18 [2020-10-19 17:59:27,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 17:59:27,756 INFO L481 AbstractCegarLoop]: Abstraction has 57 states and 65 transitions. [2020-10-19 17:59:27,756 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-19 17:59:27,757 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 65 transitions. [2020-10-19 17:59:27,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-19 17:59:27,759 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 17:59:27,759 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] [2020-10-19 17:59:27,969 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-10-19 17:59:27,970 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]=== [2020-10-19 17:59:27,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 17:59:27,971 INFO L82 PathProgramCache]: Analyzing trace with hash -1280916511, now seen corresponding path program 1 times [2020-10-19 17:59:27,972 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 17:59:27,972 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [477560368] [2020-10-19 17:59:27,972 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 [2020-10-19 17:59:28,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:59:28,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-19 17:59:28,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:59:28,145 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 [2020-10-19 17:59:28,146 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 17:59:28,150 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 17:59:28,151 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-19 17:59:28,151 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:16, output treesize:4 [2020-10-19 17:59:28,163 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [477560368] [2020-10-19 17:59:28,164 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-19 17:59:28,164 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1489184447] [2020-10-19 17:59:28,164 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 [2020-10-19 17:59:28,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:59:28,391 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 13 conjunts are in the unsatisfiable core [2020-10-19 17:59:28,393 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:59:28,459 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 [2020-10-19 17:59:28,459 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 17:59:28,462 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 17:59:28,462 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-19 17:59:28,462 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:16, output treesize:4 [2020-10-19 17:59:28,464 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-19 17:59:28,464 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [190226561] [2020-10-19 17:59:28,464 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 [2020-10-19 17:59:28,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:59:28,570 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 17:59:28,572 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:59:28,584 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 [2020-10-19 17:59:28,585 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 17:59:28,587 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 17:59:28,588 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 17:59:28,588 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-10-19 17:59:28,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 17:59:28,636 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 17:59:28,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 17:59:28,682 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 17:59:28,683 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2020-10-19 17:59:28,683 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983842803] [2020-10-19 17:59:28,684 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-19 17:59:28,685 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 17:59:28,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-19 17:59:28,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-19 17:59:28,685 INFO L87 Difference]: Start difference. First operand 57 states and 65 transitions. Second operand 5 states. [2020-10-19 17:59:28,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 17:59:28,831 INFO L93 Difference]: Finished difference Result 56 states and 64 transitions. [2020-10-19 17:59:28,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-19 17:59:28,831 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2020-10-19 17:59:28,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 17:59:28,832 INFO L225 Difference]: With dead ends: 56 [2020-10-19 17:59:28,833 INFO L226 Difference]: Without dead ends: 56 [2020-10-19 17:59:28,835 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 [2020-10-19 17:59:28,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-10-19 17:59:28,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2020-10-19 17:59:28,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-10-19 17:59:28,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 64 transitions. [2020-10-19 17:59:28,849 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 64 transitions. Word has length 20 [2020-10-19 17:59:28,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 17:59:28,850 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 64 transitions. [2020-10-19 17:59:28,850 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-19 17:59:28,850 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 64 transitions. [2020-10-19 17:59:28,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-19 17:59:28,851 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 17:59:28,851 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] [2020-10-19 17:59:29,459 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 [2020-10-19 17:59:29,460 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]=== [2020-10-19 17:59:29,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 17:59:29,461 INFO L82 PathProgramCache]: Analyzing trace with hash -1280916510, now seen corresponding path program 1 times [2020-10-19 17:59:29,461 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 17:59:29,462 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1722087335] [2020-10-19 17:59:29,462 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 [2020-10-19 17:59:29,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:59:29,576 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-19 17:59:29,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:59:29,614 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 [2020-10-19 17:59:29,616 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 17:59:29,618 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 17:59:29,618 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-19 17:59:29,618 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:16, output treesize:4 [2020-10-19 17:59:29,631 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1722087335] [2020-10-19 17:59:29,632 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-19 17:59:29,632 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [803635124] [2020-10-19 17:59:29,632 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 [2020-10-19 17:59:29,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:59:29,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 13 conjunts are in the unsatisfiable core [2020-10-19 17:59:29,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:59:29,950 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 [2020-10-19 17:59:29,951 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 17:59:29,961 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 17:59:29,961 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-19 17:59:29,962 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:16, output treesize:4 [2020-10-19 17:59:29,963 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-19 17:59:29,963 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1667701836] [2020-10-19 17:59:29,963 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 [2020-10-19 17:59:30,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:59:30,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-19 17:59:30,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:59:30,090 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 [2020-10-19 17:59:30,090 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 17:59:30,095 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 17:59:30,096 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-19 17:59:30,096 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:16, output treesize:4 [2020-10-19 17:59:30,097 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-19 17:59:30,097 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2020-10-19 17:59:30,098 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2020-10-19 17:59:30,098 ERROR L205 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2020-10-19 17:59:30,100 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-19 17:59:30,717 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 [2020-10-19 17:59:30,731 WARN L238 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-10-19 17:59:30,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 05:59:30 BoogieIcfgContainer [2020-10-19 17:59:30,734 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 17:59:30,734 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 17:59:30,734 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 17:59:30,735 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 17:59:30,736 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 05:59:23" (3/4) ... [2020-10-19 17:59:30,740 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-19 17:59:30,740 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 17:59:30,742 INFO L168 Benchmark]: Toolchain (without parser) took 9241.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 183.0 MB). Free memory was 958.6 MB in the beginning and 805.8 MB in the end (delta: 152.8 MB). Peak memory consumption was 335.8 MB. Max. memory is 11.5 GB. [2020-10-19 17:59:30,743 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 17:59:30,743 INFO L168 Benchmark]: CACSL2BoogieTranslator took 701.56 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.1 MB). Free memory was 953.3 MB in the beginning and 1.1 GB in the end (delta: -118.4 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. [2020-10-19 17:59:30,744 INFO L168 Benchmark]: Boogie Preprocessor took 75.83 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 17:59:30,745 INFO L168 Benchmark]: RCFGBuilder took 778.87 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 54.3 MB). Peak memory consumption was 54.3 MB. Max. memory is 11.5 GB. [2020-10-19 17:59:30,746 INFO L168 Benchmark]: TraceAbstraction took 7667.74 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 83.9 MB). Free memory was 1.0 GB in the beginning and 805.8 MB in the end (delta: 204.6 MB). Peak memory consumption was 288.4 MB. Max. memory is 11.5 GB. [2020-10-19 17:59:30,746 INFO L168 Benchmark]: Witness Printer took 5.97 ms. Allocated memory is still 1.2 GB. Free memory is still 805.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 17:59:30,754 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 701.56 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.1 MB). Free memory was 953.3 MB in the beginning and 1.1 GB in the end (delta: -118.4 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 75.83 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 778.87 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 54.3 MB). Peak memory consumption was 54.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 7667.74 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 83.9 MB). Free memory was 1.0 GB in the beginning and 805.8 MB in the end (delta: 204.6 MB). Peak memory consumption was 288.4 MB. Max. memory is 11.5 GB. * Witness Printer took 5.97 ms. Allocated memory is still 1.2 GB. Free memory is still 805.8 MB. There was no memory consumed. Max. memory is 11.5 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: 7.5s, 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, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 219 GetRequests, 182 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.6s 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: 0.1s 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...