./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../sv-benchmarks/c/list-properties/list_search-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) 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/list-properties/list_search-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-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-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b1ea7ddff382751fa0e11562333bdb4981cac7bdbf1d356a007804e7e2e5a289 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 13:54:27,484 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 13:54:27,486 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 13:54:27,537 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 13:54:27,537 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 13:54:27,538 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 13:54:27,538 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 13:54:27,539 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 13:54:27,540 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 13:54:27,541 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 13:54:27,541 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 13:54:27,542 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 13:54:27,542 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 13:54:27,543 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 13:54:27,548 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 13:54:27,549 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 13:54:27,551 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 13:54:27,552 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 13:54:27,553 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 13:54:27,557 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 13:54:27,558 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 13:54:27,561 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 13:54:27,562 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 13:54:27,562 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 13:54:27,564 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 13:54:27,566 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 13:54:27,566 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 13:54:27,567 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 13:54:27,567 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 13:54:27,568 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 13:54:27,570 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 13:54:27,570 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 13:54:27,571 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 13:54:27,571 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 13:54:27,572 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 13:54:27,572 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 13:54:27,573 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 13:54:27,574 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 13:54:27,574 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 13:54:27,574 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 13:54:27,575 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 13:54:27,575 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2021-12-15 13:54:27,600 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 13:54:27,600 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 13:54:27,600 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 13:54:27,600 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 13:54:27,601 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 13:54:27,601 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 13:54:27,602 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 13:54:27,602 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 13:54:27,602 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 13:54:27,602 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 13:54:27,603 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 13:54:27,603 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-15 13:54:27,603 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 13:54:27,603 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 13:54:27,603 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 13:54:27,604 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-12-15 13:54:27,604 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-12-15 13:54:27,604 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 13:54:27,604 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 13:54:27,604 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 13:54:27,604 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 13:54:27,604 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 13:54:27,605 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 13:54:27,605 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 13:54:27,605 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 13:54:27,605 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 13:54:27,605 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 13:54:27,606 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 13:54:27,606 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 13:54:27,606 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 13:54:27,606 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b1ea7ddff382751fa0e11562333bdb4981cac7bdbf1d356a007804e7e2e5a289 [2021-12-15 13:54:27,799 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 13:54:27,816 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 13:54:27,818 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 13:54:27,819 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 13:54:27,820 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 13:54:27,821 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-properties/list_search-2.i [2021-12-15 13:54:27,861 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2557ae6a9/299f4e1a79114d11a2f3461b9743c282/FLAG46f0b537e [2021-12-15 13:54:28,273 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 13:54:28,274 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-properties/list_search-2.i [2021-12-15 13:54:28,285 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2557ae6a9/299f4e1a79114d11a2f3461b9743c282/FLAG46f0b537e [2021-12-15 13:54:28,634 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2557ae6a9/299f4e1a79114d11a2f3461b9743c282 [2021-12-15 13:54:28,635 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 13:54:28,636 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 13:54:28,637 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 13:54:28,637 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 13:54:28,639 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 13:54:28,640 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 01:54:28" (1/1) ... [2021-12-15 13:54:28,640 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f70e265 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:54:28, skipping insertion in model container [2021-12-15 13:54:28,641 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 01:54:28" (1/1) ... [2021-12-15 13:54:28,645 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 13:54:28,673 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 13:54:28,814 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/list-properties/list_search-2.i[813,826] [2021-12-15 13:54:29,007 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 13:54:29,014 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 13:54:29,015 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@747eb1e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:54:29, skipping insertion in model container [2021-12-15 13:54:29,016 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 13:54:29,016 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-12-15 13:54:29,018 INFO L158 Benchmark]: Toolchain (without parser) took 380.35ms. Allocated memory was 98.6MB in the beginning and 130.0MB in the end (delta: 31.5MB). Free memory was 67.1MB in the beginning and 102.1MB in the end (delta: -35.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 13:54:29,019 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 98.6MB. Free memory was 56.1MB in the beginning and 56.1MB in the end (delta: 45.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 13:54:29,020 INFO L158 Benchmark]: CACSL2BoogieTranslator took 378.45ms. Allocated memory was 98.6MB in the beginning and 130.0MB in the end (delta: 31.5MB). Free memory was 66.8MB in the beginning and 102.1MB in the end (delta: -35.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 13:54:29,022 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 98.6MB. Free memory was 56.1MB in the beginning and 56.1MB in the end (delta: 45.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 378.45ms. Allocated memory was 98.6MB in the beginning and 130.0MB in the end (delta: 31.5MB). Free memory was 66.8MB in the beginning and 102.1MB in the end (delta: -35.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 792]: 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/list-properties/list_search-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-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-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b1ea7ddff382751fa0e11562333bdb4981cac7bdbf1d356a007804e7e2e5a289 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 13:54:30,363 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 13:54:30,364 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 13:54:30,389 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 13:54:30,390 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 13:54:30,391 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 13:54:30,392 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 13:54:30,393 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 13:54:30,394 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 13:54:30,395 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 13:54:30,396 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 13:54:30,396 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 13:54:30,397 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 13:54:30,397 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 13:54:30,398 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 13:54:30,399 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 13:54:30,400 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 13:54:30,401 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 13:54:30,402 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 13:54:30,403 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 13:54:30,404 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 13:54:30,405 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 13:54:30,406 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 13:54:30,407 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 13:54:30,408 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 13:54:30,409 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 13:54:30,409 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 13:54:30,409 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 13:54:30,410 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 13:54:30,410 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 13:54:30,411 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 13:54:30,411 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 13:54:30,412 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 13:54:30,412 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 13:54:30,413 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 13:54:30,413 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 13:54:30,414 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 13:54:30,414 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 13:54:30,414 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 13:54:30,415 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 13:54:30,415 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 13:54:30,416 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2021-12-15 13:54:30,431 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 13:54:30,431 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 13:54:30,431 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 13:54:30,432 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 13:54:30,432 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 13:54:30,432 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 13:54:30,433 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 13:54:30,433 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 13:54:30,433 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 13:54:30,433 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 13:54:30,433 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 13:54:30,434 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-15 13:54:30,434 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 13:54:30,434 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 13:54:30,434 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 13:54:30,434 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-12-15 13:54:30,434 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-12-15 13:54:30,435 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 13:54:30,435 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 13:54:30,435 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 13:54:30,435 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 13:54:30,435 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 13:54:30,435 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 13:54:30,436 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 13:54:30,436 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 13:54:30,436 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 13:54:30,436 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 13:54:30,436 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 13:54:30,436 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 13:54:30,437 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 13:54:30,437 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 13:54:30,437 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 13:54:30,437 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 13:54:30,437 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b1ea7ddff382751fa0e11562333bdb4981cac7bdbf1d356a007804e7e2e5a289 [2021-12-15 13:54:30,715 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 13:54:30,738 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 13:54:30,739 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 13:54:30,740 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 13:54:30,741 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 13:54:30,741 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-properties/list_search-2.i [2021-12-15 13:54:30,785 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2d4c651a/7f6f9371a0f24210bcf560af8cf8393f/FLAGa59e85e4a [2021-12-15 13:54:31,174 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 13:54:31,174 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-properties/list_search-2.i [2021-12-15 13:54:31,193 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2d4c651a/7f6f9371a0f24210bcf560af8cf8393f/FLAGa59e85e4a [2021-12-15 13:54:31,204 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2d4c651a/7f6f9371a0f24210bcf560af8cf8393f [2021-12-15 13:54:31,206 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 13:54:31,208 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 13:54:31,210 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 13:54:31,210 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 13:54:31,213 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 13:54:31,214 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 01:54:31" (1/1) ... [2021-12-15 13:54:31,215 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20e6531 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:54:31, skipping insertion in model container [2021-12-15 13:54:31,215 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 01:54:31" (1/1) ... [2021-12-15 13:54:31,220 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 13:54:31,258 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 13:54:31,424 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/list-properties/list_search-2.i[813,826] [2021-12-15 13:54:31,563 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 13:54:31,572 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-12-15 13:54:31,577 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 13:54:31,579 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/list-properties/list_search-2.i[813,826] [2021-12-15 13:54:31,606 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 13:54:31,622 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 13:54:31,633 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/list-properties/list_search-2.i[813,826] [2021-12-15 13:54:31,662 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 13:54:31,711 INFO L208 MainTranslator]: Completed translation [2021-12-15 13:54:31,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:54:31 WrapperNode [2021-12-15 13:54:31,711 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 13:54:31,712 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 13:54:31,712 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 13:54:31,713 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 13:54:31,717 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:54:31" (1/1) ... [2021-12-15 13:54:31,743 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:54:31" (1/1) ... [2021-12-15 13:54:31,768 INFO L137 Inliner]: procedures = 229, calls = 29, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 100 [2021-12-15 13:54:31,769 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 13:54:31,769 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 13:54:31,770 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 13:54:31,770 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 13:54:31,775 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:54:31" (1/1) ... [2021-12-15 13:54:31,776 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:54:31" (1/1) ... [2021-12-15 13:54:31,780 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:54:31" (1/1) ... [2021-12-15 13:54:31,780 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:54:31" (1/1) ... [2021-12-15 13:54:31,785 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:54:31" (1/1) ... [2021-12-15 13:54:31,787 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:54:31" (1/1) ... [2021-12-15 13:54:31,789 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:54:31" (1/1) ... [2021-12-15 13:54:31,801 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 13:54:31,802 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 13:54:31,802 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 13:54:31,803 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 13:54:31,803 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:54:31" (1/1) ... [2021-12-15 13:54:31,811 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 13:54:31,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 13:54:31,832 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 13:54:31,838 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 13:54:31,860 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-15 13:54:31,860 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-15 13:54:31,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-15 13:54:31,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 13:54:31,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 13:54:31,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-15 13:54:31,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 13:54:31,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-15 13:54:31,863 INFO L130 BoogieDeclarations]: Found specification of procedure insert_list [2021-12-15 13:54:31,863 INFO L138 BoogieDeclarations]: Found implementation of procedure insert_list [2021-12-15 13:54:31,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 13:54:31,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 13:54:31,975 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 13:54:31,992 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 13:54:32,271 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 13:54:32,278 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 13:54:32,279 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-12-15 13:54:32,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 01:54:32 BoogieIcfgContainer [2021-12-15 13:54:32,280 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 13:54:32,281 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 13:54:32,282 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 13:54:32,284 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 13:54:32,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 01:54:31" (1/3) ... [2021-12-15 13:54:32,285 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b0cefcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 01:54:32, skipping insertion in model container [2021-12-15 13:54:32,285 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:54:31" (2/3) ... [2021-12-15 13:54:32,285 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b0cefcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 01:54:32, skipping insertion in model container [2021-12-15 13:54:32,285 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 01:54:32" (3/3) ... [2021-12-15 13:54:32,286 INFO L111 eAbstractionObserver]: Analyzing ICFG list_search-2.i [2021-12-15 13:54:32,289 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 13:54:32,289 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 33 error locations. [2021-12-15 13:54:32,314 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 13:54:32,319 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 13:54:32,320 INFO L340 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2021-12-15 13:54:32,331 INFO L276 IsEmpty]: Start isEmpty. Operand has 91 states, 52 states have (on average 1.8653846153846154) internal successors, (97), 85 states have internal predecessors, (97), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-15 13:54:32,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-12-15 13:54:32,349 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 13:54:32,349 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-12-15 13:54:32,349 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting insert_listErr0REQUIRES_VIOLATION === [insert_listErr0REQUIRES_VIOLATION, insert_listErr1REQUIRES_VIOLATION, insert_listErr2REQUIRES_VIOLATION, insert_listErr3REQUIRES_VIOLATION (and 29 more)] === [2021-12-15 13:54:32,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 13:54:32,353 INFO L85 PathProgramCache]: Analyzing trace with hash 1514693702, now seen corresponding path program 1 times [2021-12-15 13:54:32,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 13:54:32,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [757409931] [2021-12-15 13:54:32,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 13:54:32,361 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 13:54:32,361 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 13:54:32,362 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 13:54:32,363 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 13:54:32,413 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 13:54:32,596 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 13:54:32,597 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 13:54:32,600 INFO L158 Benchmark]: Toolchain (without parser) took 1391.03ms. Allocated memory was 69.2MB in the beginning and 98.6MB in the end (delta: 29.4MB). Free memory was 50.5MB in the beginning and 74.5MB in the end (delta: -24.0MB). Peak memory consumption was 31.8MB. Max. memory is 16.1GB. [2021-12-15 13:54:32,600 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 69.2MB. Free memory is still 51.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 13:54:32,600 INFO L158 Benchmark]: CACSL2BoogieTranslator took 501.45ms. Allocated memory was 69.2MB in the beginning and 98.6MB in the end (delta: 29.4MB). Free memory was 50.3MB in the beginning and 78.7MB in the end (delta: -28.4MB). Peak memory consumption was 20.8MB. Max. memory is 16.1GB. [2021-12-15 13:54:32,601 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.74ms. Allocated memory is still 98.6MB. Free memory was 78.7MB in the beginning and 76.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 13:54:32,602 INFO L158 Benchmark]: Boogie Preprocessor took 32.21ms. Allocated memory is still 98.6MB. Free memory was 76.2MB in the beginning and 74.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 13:54:32,603 INFO L158 Benchmark]: RCFGBuilder took 478.02ms. Allocated memory is still 98.6MB. Free memory was 74.0MB in the beginning and 55.6MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-12-15 13:54:32,607 INFO L158 Benchmark]: TraceAbstraction took 317.25ms. Allocated memory is still 98.6MB. Free memory was 55.2MB in the beginning and 74.5MB in the end (delta: -19.2MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. [2021-12-15 13:54:32,609 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 69.2MB. Free memory is still 51.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 501.45ms. Allocated memory was 69.2MB in the beginning and 98.6MB in the end (delta: 29.4MB). Free memory was 50.3MB in the beginning and 78.7MB in the end (delta: -28.4MB). Peak memory consumption was 20.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.74ms. Allocated memory is still 98.6MB. Free memory was 78.7MB in the beginning and 76.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.21ms. Allocated memory is still 98.6MB. Free memory was 76.2MB in the beginning and 74.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 478.02ms. Allocated memory is still 98.6MB. Free memory was 74.0MB in the beginning and 55.6MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 317.25ms. Allocated memory is still 98.6MB. Free memory was 55.2MB in the beginning and 74.5MB in the end (delta: -19.2MB). Peak memory consumption was 6.8MB. 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 13:54:32,633 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