./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 3a877d22 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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/heap-manipulation/bubble_sort_linux-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a38de44f112a10364737c35b840e673503a211a020b9f494a50e4a32c8fe31c0 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 14:04:18,325 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 14:04:18,333 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 14:04:18,362 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 14:04:18,363 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 14:04:18,364 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 14:04:18,366 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 14:04:18,371 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 14:04:18,372 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 14:04:18,375 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 14:04:18,376 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 14:04:18,377 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 14:04:18,378 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 14:04:18,380 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 14:04:18,382 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 14:04:18,384 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 14:04:18,386 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 14:04:18,387 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 14:04:18,393 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 14:04:18,395 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 14:04:18,396 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 14:04:18,397 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 14:04:18,404 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 14:04:18,405 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 14:04:18,407 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 14:04:18,407 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 14:04:18,408 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 14:04:18,408 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 14:04:18,409 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 14:04:18,409 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 14:04:18,410 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 14:04:18,415 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 14:04:18,416 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 14:04:18,416 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 14:04:18,417 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 14:04:18,417 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 14:04:18,418 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 14:04:18,418 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 14:04:18,419 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 14:04:18,419 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 14:04:18,421 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 14:04:18,422 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-12-15 14:04:18,450 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 14:04:18,459 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 14:04:18,459 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 14:04:18,460 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 14:04:18,460 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 14:04:18,461 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 14:04:18,461 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 14:04:18,462 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 14:04:18,462 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 14:04:18,462 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 14:04:18,463 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 14:04:18,463 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-15 14:04:18,464 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 14:04:18,464 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 14:04:18,464 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 14:04:18,464 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-12-15 14:04:18,464 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-12-15 14:04:18,465 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-12-15 14:04:18,465 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 14:04:18,465 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 14:04:18,465 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 14:04:18,465 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 14:04:18,466 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 14:04:18,466 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 14:04:18,466 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 14:04:18,466 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 14:04:18,467 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 14:04:18,467 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 14:04:18,467 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 14:04:18,467 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 14:04:18,468 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 14:04:18,468 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a38de44f112a10364737c35b840e673503a211a020b9f494a50e4a32c8fe31c0 [2021-12-15 14:04:18,684 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 14:04:18,712 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 14:04:18,714 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 14:04:18,715 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 14:04:18,715 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 14:04:18,716 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i [2021-12-15 14:04:18,773 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4be24fc7/67cb1d9de08543588a7c5b4a97de18f3/FLAG571eea997 [2021-12-15 14:04:19,183 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 14:04:19,183 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i [2021-12-15 14:04:19,205 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4be24fc7/67cb1d9de08543588a7c5b4a97de18f3/FLAG571eea997 [2021-12-15 14:04:19,545 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4be24fc7/67cb1d9de08543588a7c5b4a97de18f3 [2021-12-15 14:04:19,547 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 14:04:19,548 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 14:04:19,549 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 14:04:19,549 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 14:04:19,555 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 14:04:19,556 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 02:04:19" (1/1) ... [2021-12-15 14:04:19,557 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5da20945 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:04:19, skipping insertion in model container [2021-12-15 14:04:19,558 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 02:04:19" (1/1) ... [2021-12-15 14:04:19,563 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 14:04:19,604 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 14:04:19,927 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i[33822,33835] [2021-12-15 14:04:19,951 WARN L564 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-12-15 14:04:19,952 WARN L564 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-12-15 14:04:19,953 WARN L564 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-12-15 14:04:19,975 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 14:04:19,987 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) [2021-12-15 14:04:19,988 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2a4aeb3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:04:19, skipping insertion in model container [2021-12-15 14:04:19,988 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 14:04:19,989 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-12-15 14:04:19,990 INFO L158 Benchmark]: Toolchain (without parser) took 441.06ms. Allocated memory is still 119.5MB. Free memory was 89.8MB in the beginning and 88.5MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 14:04:19,992 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 119.5MB. Free memory was 77.0MB in the beginning and 76.9MB in the end (delta: 90.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 14:04:19,993 INFO L158 Benchmark]: CACSL2BoogieTranslator took 439.23ms. Allocated memory is still 119.5MB. Free memory was 89.6MB in the beginning and 88.5MB in the end (delta: 1.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 14:04:19,995 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 119.5MB. Free memory was 77.0MB in the beginning and 76.9MB in the end (delta: 90.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 439.23ms. Allocated memory is still 119.5MB. Free memory was 89.6MB in the beginning and 88.5MB in the end (delta: 1.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 860]: 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... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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/heap-manipulation/bubble_sort_linux-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a38de44f112a10364737c35b840e673503a211a020b9f494a50e4a32c8fe31c0 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 14:04:21,719 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 14:04:21,721 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 14:04:21,752 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 14:04:21,753 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 14:04:21,754 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 14:04:21,756 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 14:04:21,760 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 14:04:21,763 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 14:04:21,764 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 14:04:21,765 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 14:04:21,766 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 14:04:21,767 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 14:04:21,770 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 14:04:21,772 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 14:04:21,773 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 14:04:21,775 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 14:04:21,780 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 14:04:21,781 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 14:04:21,783 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 14:04:21,788 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 14:04:21,793 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 14:04:21,794 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 14:04:21,794 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 14:04:21,796 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 14:04:21,797 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 14:04:21,797 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 14:04:21,798 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 14:04:21,798 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 14:04:21,801 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 14:04:21,802 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 14:04:21,802 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 14:04:21,803 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 14:04:21,804 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 14:04:21,806 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 14:04:21,807 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 14:04:21,807 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 14:04:21,807 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 14:04:21,808 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 14:04:21,809 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 14:04:21,810 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 14:04:21,811 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-12-15 14:04:21,836 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 14:04:21,836 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 14:04:21,837 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 14:04:21,837 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 14:04:21,837 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 14:04:21,838 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 14:04:21,838 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 14:04:21,838 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 14:04:21,838 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 14:04:21,839 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 14:04:21,839 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 14:04:21,839 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-15 14:04:21,839 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 14:04:21,839 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 14:04:21,839 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 14:04:21,839 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-12-15 14:04:21,839 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-12-15 14:04:21,839 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-12-15 14:04:21,840 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 14:04:21,840 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 14:04:21,840 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 14:04:21,840 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 14:04:21,840 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 14:04:21,840 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 14:04:21,850 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 14:04:21,851 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 14:04:21,851 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 14:04:21,851 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 14:04:21,852 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 14:04:21,852 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 14:04:21,852 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 14:04:21,852 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 14:04:21,853 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 14:04:21,853 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 14:04:21,853 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a38de44f112a10364737c35b840e673503a211a020b9f494a50e4a32c8fe31c0 [2021-12-15 14:04:22,156 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 14:04:22,186 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 14:04:22,188 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 14:04:22,190 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 14:04:22,191 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 14:04:22,192 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i [2021-12-15 14:04:22,249 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c7be7ad0/3e8de55984f04fb6875bba4adcad261c/FLAG0586a83f3 [2021-12-15 14:04:22,771 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 14:04:22,771 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i [2021-12-15 14:04:22,785 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c7be7ad0/3e8de55984f04fb6875bba4adcad261c/FLAG0586a83f3 [2021-12-15 14:04:23,275 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c7be7ad0/3e8de55984f04fb6875bba4adcad261c [2021-12-15 14:04:23,278 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 14:04:23,279 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 14:04:23,283 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 14:04:23,283 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 14:04:23,294 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 14:04:23,294 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 02:04:23" (1/1) ... [2021-12-15 14:04:23,295 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7674a323 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:04:23, skipping insertion in model container [2021-12-15 14:04:23,295 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 02:04:23" (1/1) ... [2021-12-15 14:04:23,300 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 14:04:23,351 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 14:04:23,728 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i[33822,33835] [2021-12-15 14:04:23,791 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 14:04:23,806 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-12-15 14:04:23,817 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 14:04:23,852 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i[33822,33835] [2021-12-15 14:04:23,869 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 14:04:23,883 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 14:04:23,929 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i[33822,33835] [2021-12-15 14:04:23,947 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 14:04:23,995 INFO L208 MainTranslator]: Completed translation [2021-12-15 14:04:23,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:04:23 WrapperNode [2021-12-15 14:04:23,996 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 14:04:23,997 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 14:04:23,997 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 14:04:23,998 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 14:04:24,003 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:04:23" (1/1) ... [2021-12-15 14:04:24,029 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:04:23" (1/1) ... [2021-12-15 14:04:24,050 INFO L137 Inliner]: procedures = 235, calls = 75, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 116 [2021-12-15 14:04:24,052 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 14:04:24,053 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 14:04:24,053 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 14:04:24,053 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 14:04:24,060 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:04:23" (1/1) ... [2021-12-15 14:04:24,060 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:04:23" (1/1) ... [2021-12-15 14:04:24,077 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:04:23" (1/1) ... [2021-12-15 14:04:24,079 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:04:23" (1/1) ... [2021-12-15 14:04:24,108 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:04:23" (1/1) ... [2021-12-15 14:04:24,120 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:04:23" (1/1) ... [2021-12-15 14:04:24,122 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:04:23" (1/1) ... [2021-12-15 14:04:24,131 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 14:04:24,131 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 14:04:24,132 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 14:04:24,132 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 14:04:24,132 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:04:23" (1/1) ... [2021-12-15 14:04:24,139 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 14:04:24,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 14:04:24,172 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-15 14:04:24,195 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-15 14:04:24,214 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-15 14:04:24,214 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-15 14:04:24,214 INFO L130 BoogieDeclarations]: Found specification of procedure inspect [2021-12-15 14:04:24,214 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect [2021-12-15 14:04:24,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 14:04:24,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-15 14:04:24,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-15 14:04:24,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 14:04:24,215 INFO L130 BoogieDeclarations]: Found specification of procedure val_from_node [2021-12-15 14:04:24,215 INFO L138 BoogieDeclarations]: Found implementation of procedure val_from_node [2021-12-15 14:04:24,215 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2021-12-15 14:04:24,215 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2021-12-15 14:04:24,216 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-15 14:04:24,216 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 14:04:24,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-15 14:04:24,216 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-12-15 14:04:24,216 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-12-15 14:04:24,216 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 14:04:24,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 14:04:24,369 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 14:04:24,371 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 14:04:24,953 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 14:04:24,959 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 14:04:24,959 INFO L301 CfgBuilder]: Removed 41 assume(true) statements. [2021-12-15 14:04:24,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 02:04:24 BoogieIcfgContainer [2021-12-15 14:04:24,962 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 14:04:24,965 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 14:04:24,966 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 14:04:24,968 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 14:04:24,968 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 02:04:23" (1/3) ... [2021-12-15 14:04:24,969 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49e6a2ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 02:04:24, skipping insertion in model container [2021-12-15 14:04:24,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:04:23" (2/3) ... [2021-12-15 14:04:24,970 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49e6a2ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 02:04:24, skipping insertion in model container [2021-12-15 14:04:24,970 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 02:04:24" (3/3) ... [2021-12-15 14:04:24,971 INFO L111 eAbstractionObserver]: Analyzing ICFG bubble_sort_linux-1.i [2021-12-15 14:04:24,975 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 14:04:24,975 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 71 error locations. [2021-12-15 14:04:25,015 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 14:04:25,021 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-15 14:04:25,021 INFO L340 AbstractCegarLoop]: Starting to check reachability of 71 error locations. [2021-12-15 14:04:25,042 INFO L276 IsEmpty]: Start isEmpty. Operand has 216 states, 117 states have (on average 2.1623931623931623) internal successors, (253), 206 states have internal predecessors, (253), 23 states have call successors, (23), 4 states have call predecessors, (23), 4 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2021-12-15 14:04:25,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-12-15 14:04:25,047 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 14:04:25,048 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-12-15 14:04:25,048 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [val_from_nodeErr0REQUIRES_VIOLATION, val_from_nodeErr1REQUIRES_VIOLATION, failErr0ASSERT_VIOLATIONMEMORY_LEAK, inspectErr0REQUIRES_VIOLATION (and 67 more)] === [2021-12-15 14:04:25,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 14:04:25,053 INFO L85 PathProgramCache]: Analyzing trace with hash 378924727, now seen corresponding path program 1 times [2021-12-15 14:04:25,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 14:04:25,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [942278419] [2021-12-15 14:04:25,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 14:04:25,063 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 14:04:25,063 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 14:04:25,065 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-15 14:04:25,071 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-15 14:04:25,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 14:04:25,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-15 14:04:25,157 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 14:04:25,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 14:04:25,205 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 14:04:25,206 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-15 14:04:25,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [942278419] [2021-12-15 14:04:25,206 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [942278419] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 14:04:25,206 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 14:04:25,207 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 14:04:25,208 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471219088] [2021-12-15 14:04:25,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 14:04:25,211 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-15 14:04:25,212 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-15 14:04:25,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-15 14:04:25,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-15 14:04:25,252 INFO L87 Difference]: Start difference. First operand has 216 states, 117 states have (on average 2.1623931623931623) internal successors, (253), 206 states have internal predecessors, (253), 23 states have call successors, (23), 4 states have call predecessors, (23), 4 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:04:25,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 14:04:25,287 INFO L93 Difference]: Finished difference Result 212 states and 234 transitions. [2021-12-15 14:04:25,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-15 14:04:25,294 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-12-15 14:04:25,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 14:04:25,305 INFO L225 Difference]: With dead ends: 212 [2021-12-15 14:04:25,305 INFO L226 Difference]: Without dead ends: 210 [2021-12-15 14:04:25,307 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-15 14:04:25,312 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 14:04:25,313 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 14:04:25,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2021-12-15 14:04:25,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2021-12-15 14:04:25,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 115 states have (on average 1.7826086956521738) internal successors, (205), 199 states have internal predecessors, (205), 21 states have call successors, (21), 4 states have call predecessors, (21), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-12-15 14:04:25,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 232 transitions. [2021-12-15 14:04:25,381 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 232 transitions. Word has length 5 [2021-12-15 14:04:25,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 14:04:25,382 INFO L470 AbstractCegarLoop]: Abstraction has 210 states and 232 transitions. [2021-12-15 14:04:25,382 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:04:25,382 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 232 transitions. [2021-12-15 14:04:25,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-12-15 14:04:25,383 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 14:04:25,384 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-12-15 14:04:25,399 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-15 14:04:25,595 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-15 14:04:25,595 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [val_from_nodeErr0REQUIRES_VIOLATION, val_from_nodeErr1REQUIRES_VIOLATION, failErr0ASSERT_VIOLATIONMEMORY_LEAK, inspectErr0REQUIRES_VIOLATION (and 67 more)] === [2021-12-15 14:04:25,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 14:04:25,596 INFO L85 PathProgramCache]: Analyzing trace with hash 378924789, now seen corresponding path program 1 times [2021-12-15 14:04:25,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 14:04:25,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1396837100] [2021-12-15 14:04:25,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 14:04:25,597 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 14:04:25,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 14:04:25,599 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-15 14:04:25,601 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-15 14:04:25,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 14:04:25,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-15 14:04:25,659 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 14:04:25,704 INFO L388 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 [2021-12-15 14:04:25,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 14:04:25,714 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 14:04:25,714 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-15 14:04:25,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1396837100] [2021-12-15 14:04:25,715 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1396837100] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 14:04:25,715 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 14:04:25,715 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 14:04:25,715 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005538557] [2021-12-15 14:04:25,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 14:04:25,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 14:04:25,717 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-15 14:04:25,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 14:04:25,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 14:04:25,724 INFO L87 Difference]: Start difference. First operand 210 states and 232 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:04:25,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 14:04:25,949 INFO L93 Difference]: Finished difference Result 229 states and 251 transitions. [2021-12-15 14:04:25,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 14:04:25,950 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-12-15 14:04:25,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 14:04:25,951 INFO L225 Difference]: With dead ends: 229 [2021-12-15 14:04:25,951 INFO L226 Difference]: Without dead ends: 229 [2021-12-15 14:04:25,951 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 14:04:25,952 INFO L933 BasicCegarLoop]: 201 mSDtfsCounter, 69 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-15 14:04:25,953 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 314 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-15 14:04:25,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2021-12-15 14:04:25,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 207. [2021-12-15 14:04:25,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 115 states have (on average 1.7565217391304349) internal successors, (202), 196 states have internal predecessors, (202), 21 states have call successors, (21), 4 states have call predecessors, (21), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-12-15 14:04:25,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 229 transitions. [2021-12-15 14:04:25,972 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 229 transitions. Word has length 5 [2021-12-15 14:04:25,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 14:04:25,972 INFO L470 AbstractCegarLoop]: Abstraction has 207 states and 229 transitions. [2021-12-15 14:04:25,973 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:04:25,973 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 229 transitions. [2021-12-15 14:04:25,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-12-15 14:04:25,973 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 14:04:25,974 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-12-15 14:04:25,986 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-12-15 14:04:26,182 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-15 14:04:26,183 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [val_from_nodeErr0REQUIRES_VIOLATION, val_from_nodeErr1REQUIRES_VIOLATION, failErr0ASSERT_VIOLATIONMEMORY_LEAK, inspectErr0REQUIRES_VIOLATION (and 67 more)] === [2021-12-15 14:04:26,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 14:04:26,184 INFO L85 PathProgramCache]: Analyzing trace with hash 378924790, now seen corresponding path program 1 times [2021-12-15 14:04:26,184 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 14:04:26,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1638690464] [2021-12-15 14:04:26,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 14:04:26,185 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 14:04:26,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 14:04:26,186 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-15 14:04:26,188 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-12-15 14:04:26,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 14:04:26,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-15 14:04:26,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 14:04:26,254 INFO L388 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 [2021-12-15 14:04:26,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 14:04:26,274 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 14:04:26,277 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-15 14:04:26,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1638690464] [2021-12-15 14:04:26,278 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1638690464] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 14:04:26,278 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 14:04:26,278 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 14:04:26,278 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779230404] [2021-12-15 14:04:26,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 14:04:26,279 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 14:04:26,279 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-15 14:04:26,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 14:04:26,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 14:04:26,281 INFO L87 Difference]: Start difference. First operand 207 states and 229 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:04:26,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 14:04:26,499 INFO L93 Difference]: Finished difference Result 205 states and 227 transitions. [2021-12-15 14:04:26,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 14:04:26,500 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-12-15 14:04:26,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 14:04:26,501 INFO L225 Difference]: With dead ends: 205 [2021-12-15 14:04:26,501 INFO L226 Difference]: Without dead ends: 205 [2021-12-15 14:04:26,501 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 14:04:26,502 INFO L933 BasicCegarLoop]: 204 mSDtfsCounter, 67 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-15 14:04:26,502 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 306 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-15 14:04:26,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2021-12-15 14:04:26,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 204. [2021-12-15 14:04:26,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 115 states have (on average 1.7304347826086957) internal successors, (199), 193 states have internal predecessors, (199), 21 states have call successors, (21), 4 states have call predecessors, (21), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-12-15 14:04:26,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 226 transitions. [2021-12-15 14:04:26,510 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 226 transitions. Word has length 5 [2021-12-15 14:04:26,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 14:04:26,511 INFO L470 AbstractCegarLoop]: Abstraction has 204 states and 226 transitions. [2021-12-15 14:04:26,511 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:04:26,515 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 226 transitions. [2021-12-15 14:04:26,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-12-15 14:04:26,516 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 14:04:26,516 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 14:04:26,526 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-12-15 14:04:26,726 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-15 14:04:26,726 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting list_addErr0REQUIRES_VIOLATION === [val_from_nodeErr0REQUIRES_VIOLATION, val_from_nodeErr1REQUIRES_VIOLATION, failErr0ASSERT_VIOLATIONMEMORY_LEAK, inspectErr0REQUIRES_VIOLATION (and 67 more)] === [2021-12-15 14:04:26,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 14:04:26,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1374843154, now seen corresponding path program 1 times [2021-12-15 14:04:26,728 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 14:04:26,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [669301752] [2021-12-15 14:04:26,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 14:04:26,728 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 14:04:26,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 14:04:26,729 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-15 14:04:26,731 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-12-15 14:04:26,777 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-12-15 14:04:26,974 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-15 14:04:26,975 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.constructGlobalVarsAssignment(OldVarsAssignmentCache.java:155) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.getGlobalVarsAssignment(OldVarsAssignmentCache.java:93) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:89) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:1) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedFormulas.getGlobalVarAssignment(NestedFormulas.java:126) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckUtils.decoupleArrayValues(TraceCheckUtils.java:384) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:87) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:132) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:211) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-15 14:04:26,979 INFO L158 Benchmark]: Toolchain (without parser) took 3699.04ms. Allocated memory was 52.4MB in the beginning and 75.5MB in the end (delta: 23.1MB). Free memory was 27.2MB in the beginning and 29.9MB in the end (delta: -2.7MB). Peak memory consumption was 19.2MB. Max. memory is 16.1GB. [2021-12-15 14:04:26,979 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 52.4MB. Free memory is still 34.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 14:04:26,979 INFO L158 Benchmark]: CACSL2BoogieTranslator took 713.28ms. Allocated memory was 52.4MB in the beginning and 62.9MB in the end (delta: 10.5MB). Free memory was 27.0MB in the beginning and 33.7MB in the end (delta: -6.7MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. [2021-12-15 14:04:26,980 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.86ms. Allocated memory is still 62.9MB. Free memory was 33.7MB in the beginning and 31.0MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-15 14:04:26,980 INFO L158 Benchmark]: Boogie Preprocessor took 77.92ms. Allocated memory is still 62.9MB. Free memory was 31.0MB in the beginning and 41.1MB in the end (delta: -10.2MB). Peak memory consumption was 3.8MB. Max. memory is 16.1GB. [2021-12-15 14:04:26,981 INFO L158 Benchmark]: RCFGBuilder took 831.22ms. Allocated memory was 62.9MB in the beginning and 75.5MB in the end (delta: 12.6MB). Free memory was 41.1MB in the beginning and 49.8MB in the end (delta: -8.7MB). Peak memory consumption was 17.6MB. Max. memory is 16.1GB. [2021-12-15 14:04:26,981 INFO L158 Benchmark]: TraceAbstraction took 2012.54ms. Allocated memory is still 75.5MB. Free memory was 49.5MB in the beginning and 29.9MB in the end (delta: 19.6MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. [2021-12-15 14:04:26,983 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 52.4MB. Free memory is still 34.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 713.28ms. Allocated memory was 52.4MB in the beginning and 62.9MB in the end (delta: 10.5MB). Free memory was 27.0MB in the beginning and 33.7MB in the end (delta: -6.7MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.86ms. Allocated memory is still 62.9MB. Free memory was 33.7MB in the beginning and 31.0MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 77.92ms. Allocated memory is still 62.9MB. Free memory was 31.0MB in the beginning and 41.1MB in the end (delta: -10.2MB). Peak memory consumption was 3.8MB. Max. memory is 16.1GB. * RCFGBuilder took 831.22ms. Allocated memory was 62.9MB in the beginning and 75.5MB in the end (delta: 12.6MB). Free memory was 41.1MB in the beginning and 49.8MB in the end (delta: -8.7MB). Peak memory consumption was 17.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2012.54ms. Allocated memory is still 75.5MB. Free memory was 49.5MB in the beginning and 29.9MB in the end (delta: 19.6MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-12-15 14:04:27,011 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable