./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/memsafety/test-0102-1.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/memsafety/test-0102-1.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 fa260939b291574cde59d3c10d7828de68c26744f55119227115b01940792a6f --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 14:00:07,454 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 14:00:07,457 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 14:00:07,475 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 14:00:07,476 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 14:00:07,476 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 14:00:07,477 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 14:00:07,478 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 14:00:07,480 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 14:00:07,480 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 14:00:07,481 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 14:00:07,482 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 14:00:07,482 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 14:00:07,483 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 14:00:07,484 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 14:00:07,484 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 14:00:07,485 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 14:00:07,486 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 14:00:07,487 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 14:00:07,488 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 14:00:07,489 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 14:00:07,490 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 14:00:07,490 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 14:00:07,491 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 14:00:07,493 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 14:00:07,493 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 14:00:07,493 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 14:00:07,494 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 14:00:07,494 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 14:00:07,495 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 14:00:07,495 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 14:00:07,495 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 14:00:07,496 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 14:00:07,496 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 14:00:07,497 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 14:00:07,497 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 14:00:07,498 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 14:00:07,498 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 14:00:07,498 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 14:00:07,499 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 14:00:07,499 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 14:00:07,500 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-12-15 14:00:07,513 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 14:00:07,513 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 14:00:07,514 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 14:00:07,514 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 14:00:07,514 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 14:00:07,514 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 14:00:07,515 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 14:00:07,515 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 14:00:07,515 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 14:00:07,515 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 14:00:07,515 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 14:00:07,516 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-15 14:00:07,516 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 14:00:07,516 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 14:00:07,516 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 14:00:07,516 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-12-15 14:00:07,516 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-12-15 14:00:07,517 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-12-15 14:00:07,517 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 14:00:07,517 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 14:00:07,517 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 14:00:07,517 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 14:00:07,517 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 14:00:07,518 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 14:00:07,518 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 14:00:07,518 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 14:00:07,518 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 14:00:07,518 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 14:00:07,518 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 14:00:07,518 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 14:00:07,519 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 14:00:07,519 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fa260939b291574cde59d3c10d7828de68c26744f55119227115b01940792a6f [2021-12-15 14:00:07,677 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 14:00:07,715 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 14:00:07,717 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 14:00:07,718 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 14:00:07,719 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 14:00:07,721 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memsafety/test-0102-1.i [2021-12-15 14:00:07,813 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c37ae682/c191b11e7f544c498b8a0129d42c33ac/FLAG81b0eaa0d [2021-12-15 14:00:08,338 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 14:00:08,339 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/memsafety/test-0102-1.i [2021-12-15 14:00:08,366 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c37ae682/c191b11e7f544c498b8a0129d42c33ac/FLAG81b0eaa0d [2021-12-15 14:00:08,675 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c37ae682/c191b11e7f544c498b8a0129d42c33ac [2021-12-15 14:00:08,677 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 14:00:08,677 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 14:00:08,678 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 14:00:08,679 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 14:00:08,684 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 14:00:08,685 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 02:00:08" (1/1) ... [2021-12-15 14:00:08,687 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54679c79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:00:08, skipping insertion in model container [2021-12-15 14:00:08,687 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 02:00:08" (1/1) ... [2021-12-15 14:00:08,693 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 14:00:08,722 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 14:00:09,077 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 14:00:09,087 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 14:00:09,088 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4465075d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:00:09, skipping insertion in model container [2021-12-15 14:00:09,088 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 14:00:09,089 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-12-15 14:00:09,091 INFO L158 Benchmark]: Toolchain (without parser) took 411.97ms. Allocated memory is still 92.3MB. Free memory was 51.8MB in the beginning and 67.1MB in the end (delta: -15.3MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. [2021-12-15 14:00:09,092 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 92.3MB. Free memory is still 69.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 14:00:09,093 INFO L158 Benchmark]: CACSL2BoogieTranslator took 410.15ms. Allocated memory is still 92.3MB. Free memory was 51.5MB in the beginning and 67.1MB in the end (delta: -15.6MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. [2021-12-15 14:00:09,095 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 92.3MB. Free memory is still 69.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 410.15ms. Allocated memory is still 92.3MB. Free memory was 51.5MB in the beginning and 67.1MB in the end (delta: -15.6MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 551]: 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/memsafety/test-0102-1.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 fa260939b291574cde59d3c10d7828de68c26744f55119227115b01940792a6f --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 14:00:10,888 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 14:00:10,891 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 14:00:10,933 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 14:00:10,933 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 14:00:10,937 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 14:00:10,938 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 14:00:10,943 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 14:00:10,945 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 14:00:10,949 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 14:00:10,950 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 14:00:10,951 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 14:00:10,951 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 14:00:10,953 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 14:00:10,954 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 14:00:10,960 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 14:00:10,961 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 14:00:10,962 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 14:00:10,964 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 14:00:10,970 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 14:00:10,971 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 14:00:10,972 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 14:00:10,973 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 14:00:10,974 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 14:00:10,979 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 14:00:10,979 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 14:00:10,979 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 14:00:10,980 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 14:00:10,981 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 14:00:10,981 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 14:00:10,982 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 14:00:10,982 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 14:00:10,983 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 14:00:10,984 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 14:00:10,985 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 14:00:10,985 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 14:00:10,986 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 14:00:10,986 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 14:00:10,986 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 14:00:10,987 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 14:00:10,987 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 14:00:10,988 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-12-15 14:00:11,019 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 14:00:11,019 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 14:00:11,020 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 14:00:11,020 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 14:00:11,021 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 14:00:11,021 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 14:00:11,022 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 14:00:11,022 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 14:00:11,022 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 14:00:11,022 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 14:00:11,023 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 14:00:11,023 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-15 14:00:11,023 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 14:00:11,024 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 14:00:11,024 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 14:00:11,024 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-12-15 14:00:11,024 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-12-15 14:00:11,024 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-12-15 14:00:11,024 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 14:00:11,024 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 14:00:11,024 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 14:00:11,025 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 14:00:11,025 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 14:00:11,025 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 14:00:11,025 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 14:00:11,025 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 14:00:11,025 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 14:00:11,031 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 14:00:11,031 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 14:00:11,031 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 14:00:11,031 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 14:00:11,031 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 14:00:11,032 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 14:00:11,032 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 14:00:11,032 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fa260939b291574cde59d3c10d7828de68c26744f55119227115b01940792a6f [2021-12-15 14:00:11,277 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 14:00:11,301 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 14:00:11,304 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 14:00:11,305 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 14:00:11,305 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 14:00:11,306 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memsafety/test-0102-1.i [2021-12-15 14:00:11,367 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/086ac1aef/fc69b4d427d34218b7c4d392bbfc7bab/FLAG158d55e26 [2021-12-15 14:00:11,819 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 14:00:11,819 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/memsafety/test-0102-1.i [2021-12-15 14:00:11,830 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/086ac1aef/fc69b4d427d34218b7c4d392bbfc7bab/FLAG158d55e26 [2021-12-15 14:00:11,843 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/086ac1aef/fc69b4d427d34218b7c4d392bbfc7bab [2021-12-15 14:00:11,845 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 14:00:11,846 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 14:00:11,848 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 14:00:11,849 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 14:00:11,851 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 14:00:11,852 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 02:00:11" (1/1) ... [2021-12-15 14:00:11,853 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c01532f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:00:11, skipping insertion in model container [2021-12-15 14:00:11,853 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 02:00:11" (1/1) ... [2021-12-15 14:00:11,858 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 14:00:11,903 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 14:00:12,218 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 14:00:12,234 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-12-15 14:00:12,243 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 14:00:12,282 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 14:00:12,300 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 14:00:12,348 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 14:00:12,375 INFO L208 MainTranslator]: Completed translation [2021-12-15 14:00:12,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:00:12 WrapperNode [2021-12-15 14:00:12,376 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 14:00:12,377 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 14:00:12,377 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 14:00:12,377 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 14:00:12,381 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:00:12" (1/1) ... [2021-12-15 14:00:12,399 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:00:12" (1/1) ... [2021-12-15 14:00:12,413 INFO L137 Inliner]: procedures = 136, calls = 38, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 86 [2021-12-15 14:00:12,414 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 14:00:12,414 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 14:00:12,415 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 14:00:12,415 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 14:00:12,420 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:00:12" (1/1) ... [2021-12-15 14:00:12,420 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:00:12" (1/1) ... [2021-12-15 14:00:12,423 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:00:12" (1/1) ... [2021-12-15 14:00:12,423 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:00:12" (1/1) ... [2021-12-15 14:00:12,430 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:00:12" (1/1) ... [2021-12-15 14:00:12,433 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:00:12" (1/1) ... [2021-12-15 14:00:12,435 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:00:12" (1/1) ... [2021-12-15 14:00:12,437 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 14:00:12,437 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 14:00:12,438 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 14:00:12,438 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 14:00:12,438 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:00:12" (1/1) ... [2021-12-15 14:00:12,443 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 14:00:12,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 14:00:12,473 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 14:00:12,478 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 14:00:12,497 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-12-15 14:00:12,497 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-12-15 14:00:12,497 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-15 14:00:12,497 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 14:00:12,498 INFO L130 BoogieDeclarations]: Found specification of procedure create_sub_list [2021-12-15 14:00:12,498 INFO L138 BoogieDeclarations]: Found implementation of procedure create_sub_list [2021-12-15 14:00:12,498 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 14:00:12,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-15 14:00:12,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-15 14:00:12,499 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_sub [2021-12-15 14:00:12,499 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_sub [2021-12-15 14:00:12,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-15 14:00:12,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 14:00:12,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-15 14:00:12,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 14:00:12,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 14:00:12,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 14:00:12,575 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 14:00:12,576 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 14:00:12,808 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 14:00:12,812 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 14:00:12,813 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-12-15 14:00:12,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 02:00:12 BoogieIcfgContainer [2021-12-15 14:00:12,814 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 14:00:12,815 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 14:00:12,815 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 14:00:12,817 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 14:00:12,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 02:00:11" (1/3) ... [2021-12-15 14:00:12,817 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59f07f40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 02:00:12, skipping insertion in model container [2021-12-15 14:00:12,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:00:12" (2/3) ... [2021-12-15 14:00:12,818 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59f07f40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 02:00:12, skipping insertion in model container [2021-12-15 14:00:12,818 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 02:00:12" (3/3) ... [2021-12-15 14:00:12,819 INFO L111 eAbstractionObserver]: Analyzing ICFG test-0102-1.i [2021-12-15 14:00:12,822 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 14:00:12,822 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 31 error locations. [2021-12-15 14:00:12,848 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 14:00:12,854 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 14:00:12,854 INFO L340 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2021-12-15 14:00:12,870 INFO L276 IsEmpty]: Start isEmpty. Operand has 87 states, 46 states have (on average 1.891304347826087) internal successors, (87), 77 states have internal predecessors, (87), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-12-15 14:00:12,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-12-15 14:00:12,876 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 14:00:12,877 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-12-15 14:00:12,877 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [create_sub_listErr0REQUIRES_VIOLATION, create_sub_listErr1REQUIRES_VIOLATION, create_sub_listErr2REQUIRES_VIOLATION, create_sub_listErr3REQUIRES_VIOLATION (and 27 more)] === [2021-12-15 14:00:12,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 14:00:12,885 INFO L85 PathProgramCache]: Analyzing trace with hash 106012329, now seen corresponding path program 1 times [2021-12-15 14:00:12,896 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 14:00:12,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1394824000] [2021-12-15 14:00:12,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 14:00:12,897 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 14:00:12,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 14:00:12,917 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 14:00:12,918 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 14:00:13,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 14:00:13,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-15 14:00:13,034 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 14:00:13,059 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 14:00:13,060 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 14:00:13,060 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-15 14:00:13,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1394824000] [2021-12-15 14:00:13,061 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1394824000] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 14:00:13,061 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 14:00:13,061 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 14:00:13,062 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959033863] [2021-12-15 14:00:13,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 14:00:13,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-15 14:00:13,066 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-15 14:00:13,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-15 14:00:13,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-15 14:00:13,091 INFO L87 Difference]: Start difference. First operand has 87 states, 46 states have (on average 1.891304347826087) internal successors, (87), 77 states have internal predecessors, (87), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) 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 14:00:13,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 14:00:13,111 INFO L93 Difference]: Finished difference Result 87 states and 93 transitions. [2021-12-15 14:00:13,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-15 14:00:13,112 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 14:00:13,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 14:00:13,118 INFO L225 Difference]: With dead ends: 87 [2021-12-15 14:00:13,118 INFO L226 Difference]: Without dead ends: 85 [2021-12-15 14:00:13,119 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 14:00:13,122 INFO L933 BasicCegarLoop]: 93 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, 93 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 14:00:13,124 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 14:00:13,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2021-12-15 14:00:13,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2021-12-15 14:00:13,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 45 states have (on average 1.7555555555555555) internal successors, (79), 75 states have internal predecessors, (79), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-12-15 14:00:13,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 91 transitions. [2021-12-15 14:00:13,158 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 91 transitions. Word has length 5 [2021-12-15 14:00:13,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 14:00:13,158 INFO L470 AbstractCegarLoop]: Abstraction has 85 states and 91 transitions. [2021-12-15 14:00:13,159 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 14:00:13,159 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 91 transitions. [2021-12-15 14:00:13,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-12-15 14:00:13,159 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 14:00:13,160 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-15 14:00:13,169 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 14:00:13,367 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 14:00:13,368 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting create_sub_listErr0REQUIRES_VIOLATION === [create_sub_listErr0REQUIRES_VIOLATION, create_sub_listErr1REQUIRES_VIOLATION, create_sub_listErr2REQUIRES_VIOLATION, create_sub_listErr3REQUIRES_VIOLATION (and 27 more)] === [2021-12-15 14:00:13,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 14:00:13,370 INFO L85 PathProgramCache]: Analyzing trace with hash -1219357814, now seen corresponding path program 1 times [2021-12-15 14:00:13,372 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 14:00:13,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [50416083] [2021-12-15 14:00:13,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 14:00:13,373 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 14:00:13,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 14:00:13,377 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 14:00:13,379 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 14:00:13,436 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 14:00:13,631 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 14:00:13,632 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 14:00:13,634 INFO L158 Benchmark]: Toolchain (without parser) took 1787.51ms. Allocated memory was 54.5MB in the beginning and 73.4MB in the end (delta: 18.9MB). Free memory was 35.6MB in the beginning and 39.7MB in the end (delta: -4.0MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. [2021-12-15 14:00:13,635 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 44.0MB. Free memory was 25.9MB in the beginning and 25.9MB in the end (delta: 33.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 14:00:13,635 INFO L158 Benchmark]: CACSL2BoogieTranslator took 527.61ms. Allocated memory is still 54.5MB. Free memory was 35.3MB in the beginning and 24.7MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-15 14:00:13,635 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.38ms. Allocated memory is still 54.5MB. Free memory was 24.7MB in the beginning and 36.4MB in the end (delta: -11.7MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. [2021-12-15 14:00:13,636 INFO L158 Benchmark]: Boogie Preprocessor took 22.42ms. Allocated memory is still 54.5MB. Free memory was 36.4MB in the beginning and 34.5MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 14:00:13,636 INFO L158 Benchmark]: RCFGBuilder took 376.51ms. Allocated memory is still 54.5MB. Free memory was 34.2MB in the beginning and 29.3MB in the end (delta: 4.9MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. [2021-12-15 14:00:13,637 INFO L158 Benchmark]: TraceAbstraction took 818.62ms. Allocated memory was 54.5MB in the beginning and 73.4MB in the end (delta: 18.9MB). Free memory was 28.8MB in the beginning and 39.7MB in the end (delta: -10.8MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. [2021-12-15 14:00:13,640 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 44.0MB. Free memory was 25.9MB in the beginning and 25.9MB in the end (delta: 33.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 527.61ms. Allocated memory is still 54.5MB. Free memory was 35.3MB in the beginning and 24.7MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.38ms. Allocated memory is still 54.5MB. Free memory was 24.7MB in the beginning and 36.4MB in the end (delta: -11.7MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.42ms. Allocated memory is still 54.5MB. Free memory was 36.4MB in the beginning and 34.5MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 376.51ms. Allocated memory is still 54.5MB. Free memory was 34.2MB in the beginning and 29.3MB in the end (delta: 4.9MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. * TraceAbstraction took 818.62ms. Allocated memory was 54.5MB in the beginning and 73.4MB in the end (delta: 18.9MB). Free memory was 28.8MB in the beginning and 39.7MB in the end (delta: -10.8MB). Peak memory consumption was 7.4MB. 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 14:00:13,668 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