./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_string_compare_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_string_compare_harness.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 66fb9bfec5c458b51d86deb6748dd65f162e7ac6a772af5f3fec59d101a18d8d --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 12:32:50,117 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 12:32:50,119 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 12:32:50,183 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 12:32:50,183 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 12:32:50,186 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 12:32:50,187 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 12:32:50,190 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 12:32:50,191 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 12:32:50,195 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 12:32:50,196 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 12:32:50,197 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 12:32:50,197 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 12:32:50,199 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 12:32:50,200 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 12:32:50,203 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 12:32:50,204 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 12:32:50,205 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 12:32:50,207 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 12:32:50,212 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 12:32:50,213 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 12:32:50,214 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 12:32:50,215 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 12:32:50,215 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 12:32:50,221 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 12:32:50,221 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 12:32:50,221 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 12:32:50,223 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 12:32:50,223 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 12:32:50,224 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 12:32:50,224 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 12:32:50,225 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 12:32:50,226 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 12:32:50,227 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 12:32:50,228 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 12:32:50,228 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 12:32:50,229 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 12:32:50,229 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 12:32:50,229 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 12:32:50,230 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 12:32:50,230 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 12:32:50,232 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-15 12:32:50,264 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 12:32:50,264 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 12:32:50,265 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 12:32:50,265 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 12:32:50,266 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 12:32:50,266 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 12:32:50,267 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 12:32:50,267 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 12:32:50,267 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 12:32:50,267 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 12:32:50,268 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 12:32:50,268 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 12:32:50,268 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 12:32:50,268 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 12:32:50,269 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 12:32:50,269 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 12:32:50,269 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 12:32:50,269 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 12:32:50,269 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 12:32:50,269 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 12:32:50,270 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 12:32:50,270 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 12:32:50,270 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 12:32:50,270 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 12:32:50,270 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 12:32:50,271 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 12:32:50,271 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 12:32:50,272 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 12:32:50,272 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 12:32:50,272 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 12:32:50,272 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 12:32:50,272 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 66fb9bfec5c458b51d86deb6748dd65f162e7ac6a772af5f3fec59d101a18d8d [2021-12-15 12:32:50,523 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 12:32:50,543 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 12:32:50,546 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 12:32:50,547 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 12:32:50,547 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 12:32:50,549 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_string_compare_harness.i [2021-12-15 12:32:50,603 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5c287b8d/05372780c28b401ea5b9a8ab6c62c8fe/FLAG3e880b7d3 [2021-12-15 12:32:51,315 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 12:32:51,316 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_compare_harness.i [2021-12-15 12:32:51,362 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5c287b8d/05372780c28b401ea5b9a8ab6c62c8fe/FLAG3e880b7d3 [2021-12-15 12:32:51,587 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5c287b8d/05372780c28b401ea5b9a8ab6c62c8fe [2021-12-15 12:32:51,589 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 12:32:51,591 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 12:32:51,592 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 12:32:51,593 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 12:32:51,595 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 12:32:51,596 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 12:32:51" (1/1) ... [2021-12-15 12:32:51,597 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@756ff4a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:32:51, skipping insertion in model container [2021-12-15 12:32:51,597 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 12:32:51" (1/1) ... [2021-12-15 12:32:51,602 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 12:32:51,693 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 12:32:51,972 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/aws-c-common/aws_string_compare_harness.i[4492,4505] [2021-12-15 12:32:51,979 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/aws-c-common/aws_string_compare_harness.i[4552,4565] [2021-12-15 12:32:52,870 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:32:52,871 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:32:52,873 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:32:52,874 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:32:52,875 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:32:52,885 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:32:52,888 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:32:52,890 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:32:52,890 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:32:53,195 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-15 12:32:53,196 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-15 12:32:53,197 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-15 12:32:53,198 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-15 12:32:53,202 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-15 12:32:53,205 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-15 12:32:53,206 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-15 12:32:53,207 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-15 12:32:53,208 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-15 12:32:53,209 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-15 12:32:53,345 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-12-15 12:32:53,445 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:32:53,445 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:32:53,533 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 12:32:53,575 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 12:32:53,597 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/aws-c-common/aws_string_compare_harness.i[4492,4505] [2021-12-15 12:32:53,598 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/aws-c-common/aws_string_compare_harness.i[4552,4565] [2021-12-15 12:32:53,636 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:32:53,636 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:32:53,637 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:32:53,637 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:32:53,638 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:32:53,641 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:32:53,642 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:32:53,642 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:32:53,643 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:32:53,688 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-15 12:32:53,688 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-15 12:32:53,689 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-15 12:32:53,689 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-15 12:32:53,690 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-15 12:32:53,690 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-15 12:32:53,690 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-15 12:32:53,691 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-15 12:32:53,691 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-15 12:32:53,691 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-15 12:32:53,706 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-12-15 12:32:53,747 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:32:53,747 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:32:53,813 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 12:32:54,010 INFO L208 MainTranslator]: Completed translation [2021-12-15 12:32:54,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:32:54 WrapperNode [2021-12-15 12:32:54,011 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 12:32:54,012 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 12:32:54,012 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 12:32:54,012 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 12:32:54,018 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:32:54" (1/1) ... [2021-12-15 12:32:54,110 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:32:54" (1/1) ... [2021-12-15 12:32:54,189 INFO L137 Inliner]: procedures = 693, calls = 2780, calls flagged for inlining = 57, calls inlined = 5, statements flattened = 822 [2021-12-15 12:32:54,189 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 12:32:54,190 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 12:32:54,190 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 12:32:54,190 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 12:32:54,198 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:32:54" (1/1) ... [2021-12-15 12:32:54,198 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:32:54" (1/1) ... [2021-12-15 12:32:54,205 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:32:54" (1/1) ... [2021-12-15 12:32:54,206 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:32:54" (1/1) ... [2021-12-15 12:32:54,234 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:32:54" (1/1) ... [2021-12-15 12:32:54,237 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:32:54" (1/1) ... [2021-12-15 12:32:54,244 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:32:54" (1/1) ... [2021-12-15 12:32:54,253 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 12:32:54,254 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 12:32:54,254 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 12:32:54,254 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 12:32:54,272 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:32:54" (1/1) ... [2021-12-15 12:32:54,278 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 12:32:54,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 12:32:54,304 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 12:32:54,328 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 12:32:54,348 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2021-12-15 12:32:54,349 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2021-12-15 12:32:54,349 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_compare [2021-12-15 12:32:54,349 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_compare [2021-12-15 12:32:54,349 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2021-12-15 12:32:54,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2021-12-15 12:32:54,349 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-12-15 12:32:54,349 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-12-15 12:32:54,350 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-12-15 12:32:54,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-15 12:32:54,351 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-12-15 12:32:54,351 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-12-15 12:32:54,351 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-15 12:32:54,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 12:32:54,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-15 12:32:54,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 12:32:54,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 12:32:54,352 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-12-15 12:32:54,353 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-12-15 12:32:54,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-15 12:32:54,353 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_bytes [2021-12-15 12:32:54,353 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_bytes [2021-12-15 12:32:54,353 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-15 12:32:54,354 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-15 12:32:54,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-15 12:32:54,354 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2021-12-15 12:32:54,355 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2021-12-15 12:32:54,355 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2021-12-15 12:32:54,355 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2021-12-15 12:32:54,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-15 12:32:54,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 12:32:54,593 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 12:32:54,595 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 12:32:55,242 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 12:32:55,249 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 12:32:55,249 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-15 12:32:55,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 12:32:55 BoogieIcfgContainer [2021-12-15 12:32:55,251 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 12:32:55,252 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 12:32:55,253 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 12:32:55,256 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 12:32:55,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 12:32:51" (1/3) ... [2021-12-15 12:32:55,257 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31adabb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 12:32:55, skipping insertion in model container [2021-12-15 12:32:55,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:32:54" (2/3) ... [2021-12-15 12:32:55,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31adabb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 12:32:55, skipping insertion in model container [2021-12-15 12:32:55,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 12:32:55" (3/3) ... [2021-12-15 12:32:55,259 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_string_compare_harness.i [2021-12-15 12:32:55,264 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 12:32:55,264 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 12:32:55,315 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 12:32:55,321 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=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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 12:32:55,321 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 12:32:55,340 INFO L276 IsEmpty]: Start isEmpty. Operand has 125 states, 80 states have (on average 1.3) internal successors, (104), 81 states have internal predecessors, (104), 33 states have call successors, (33), 10 states have call predecessors, (33), 10 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2021-12-15 12:32:55,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-12-15 12:32:55,347 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 12:32:55,347 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 12:32:55,348 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 12:32:55,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 12:32:55,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1023392938, now seen corresponding path program 1 times [2021-12-15 12:32:55,359 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 12:32:55,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620880699] [2021-12-15 12:32:55,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 12:32:55,360 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 12:32:55,448 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 12:32:55,449 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.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:89) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.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 12:32:55,458 INFO L158 Benchmark]: Toolchain (without parser) took 3865.88ms. Allocated memory was 98.6MB in the beginning and 172.0MB in the end (delta: 73.4MB). Free memory was 61.8MB in the beginning and 66.8MB in the end (delta: -5.0MB). Peak memory consumption was 68.4MB. Max. memory is 16.1GB. [2021-12-15 12:32:55,459 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 98.6MB. Free memory was 58.1MB in the beginning and 58.1MB in the end (delta: 47.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 12:32:55,463 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2418.82ms. Allocated memory was 98.6MB in the beginning and 172.0MB in the end (delta: 73.4MB). Free memory was 61.6MB in the beginning and 84.7MB in the end (delta: -23.1MB). Peak memory consumption was 68.8MB. Max. memory is 16.1GB. [2021-12-15 12:32:55,463 INFO L158 Benchmark]: Boogie Procedure Inliner took 177.40ms. Allocated memory is still 172.0MB. Free memory was 84.7MB in the beginning and 117.6MB in the end (delta: -32.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-12-15 12:32:55,464 INFO L158 Benchmark]: Boogie Preprocessor took 63.52ms. Allocated memory is still 172.0MB. Free memory was 117.6MB in the beginning and 110.4MB in the end (delta: 7.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-15 12:32:55,464 INFO L158 Benchmark]: RCFGBuilder took 997.20ms. Allocated memory is still 172.0MB. Free memory was 110.4MB in the beginning and 81.5MB in the end (delta: 28.9MB). Peak memory consumption was 52.8MB. Max. memory is 16.1GB. [2021-12-15 12:32:55,465 INFO L158 Benchmark]: TraceAbstraction took 203.42ms. Allocated memory is still 172.0MB. Free memory was 81.5MB in the beginning and 66.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-15 12:32:55,471 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 98.6MB. Free memory was 58.1MB in the beginning and 58.1MB in the end (delta: 47.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2418.82ms. Allocated memory was 98.6MB in the beginning and 172.0MB in the end (delta: 73.4MB). Free memory was 61.6MB in the beginning and 84.7MB in the end (delta: -23.1MB). Peak memory consumption was 68.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 177.40ms. Allocated memory is still 172.0MB. Free memory was 84.7MB in the beginning and 117.6MB in the end (delta: -32.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.52ms. Allocated memory is still 172.0MB. Free memory was 117.6MB in the beginning and 110.4MB in the end (delta: 7.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 997.20ms. Allocated memory is still 172.0MB. Free memory was 110.4MB in the beginning and 81.5MB in the end (delta: 28.9MB). Peak memory consumption was 52.8MB. Max. memory is 16.1GB. * TraceAbstraction took 203.42ms. Allocated memory is still 172.0MB. Free memory was 81.5MB in the beginning and 66.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. 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 12:32:55,509 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 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/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_string_compare_harness.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 66fb9bfec5c458b51d86deb6748dd65f162e7ac6a772af5f3fec59d101a18d8d --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 12:32:57,369 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 12:32:57,372 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 12:32:57,410 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 12:32:57,410 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 12:32:57,414 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 12:32:57,415 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 12:32:57,419 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 12:32:57,422 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 12:32:57,425 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 12:32:57,426 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 12:32:57,436 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 12:32:57,437 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 12:32:57,439 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 12:32:57,440 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 12:32:57,446 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 12:32:57,446 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 12:32:57,447 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 12:32:57,449 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 12:32:57,455 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 12:32:57,456 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 12:32:57,457 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 12:32:57,458 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 12:32:57,459 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 12:32:57,465 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 12:32:57,465 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 12:32:57,466 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 12:32:57,467 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 12:32:57,467 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 12:32:57,468 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 12:32:57,468 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 12:32:57,469 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 12:32:57,470 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 12:32:57,475 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 12:32:57,476 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 12:32:57,476 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 12:32:57,477 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 12:32:57,477 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 12:32:57,478 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 12:32:57,479 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 12:32:57,480 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 12:32:57,483 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2021-12-15 12:32:57,519 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 12:32:57,520 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 12:32:57,521 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 12:32:57,521 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 12:32:57,522 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 12:32:57,522 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 12:32:57,523 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 12:32:57,523 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 12:32:57,523 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 12:32:57,523 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 12:32:57,524 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 12:32:57,524 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 12:32:57,524 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 12:32:57,524 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 12:32:57,524 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 12:32:57,524 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 12:32:57,524 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 12:32:57,525 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 12:32:57,525 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 12:32:57,525 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 12:32:57,525 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 12:32:57,525 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 12:32:57,525 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 12:32:57,525 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 12:32:57,525 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 12:32:57,525 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 12:32:57,526 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 12:32:57,526 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 12:32:57,526 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 12:32:57,526 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 12:32:57,526 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 12:32:57,526 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 12:32:57,526 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 12:32:57,526 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 12:32:57,526 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 66fb9bfec5c458b51d86deb6748dd65f162e7ac6a772af5f3fec59d101a18d8d [2021-12-15 12:32:57,832 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 12:32:57,850 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 12:32:57,852 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 12:32:57,854 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 12:32:57,855 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 12:32:57,856 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_string_compare_harness.i [2021-12-15 12:32:57,906 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91393de86/832452c2c2cf4269808917e2b506ca0d/FLAG420829f19 [2021-12-15 12:32:58,609 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 12:32:58,610 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_compare_harness.i [2021-12-15 12:32:58,653 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91393de86/832452c2c2cf4269808917e2b506ca0d/FLAG420829f19 [2021-12-15 12:32:58,936 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91393de86/832452c2c2cf4269808917e2b506ca0d [2021-12-15 12:32:58,938 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 12:32:58,939 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 12:32:58,942 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 12:32:58,942 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 12:32:58,949 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 12:32:58,949 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 12:32:58" (1/1) ... [2021-12-15 12:32:58,950 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39977605 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:32:58, skipping insertion in model container [2021-12-15 12:32:58,951 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 12:32:58" (1/1) ... [2021-12-15 12:32:58,956 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 12:32:59,064 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 12:32:59,337 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/aws-c-common/aws_string_compare_harness.i[4492,4505] [2021-12-15 12:32:59,343 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/aws-c-common/aws_string_compare_harness.i[4552,4565] [2021-12-15 12:33:00,195 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:33:00,196 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:33:00,197 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:33:00,198 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:33:00,199 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:33:00,222 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:33:00,224 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:33:00,226 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:33:00,227 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:33:00,504 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-15 12:33:00,506 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-15 12:33:00,506 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-15 12:33:00,507 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-15 12:33:00,508 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-15 12:33:00,508 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-15 12:33:00,509 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-15 12:33:00,509 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-15 12:33:00,510 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-15 12:33:00,510 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-15 12:33:00,609 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-12-15 12:33:00,696 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:33:00,696 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:33:00,770 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 12:33:00,845 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-12-15 12:33:00,901 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 12:33:00,906 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/aws-c-common/aws_string_compare_harness.i[4492,4505] [2021-12-15 12:33:00,909 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/aws-c-common/aws_string_compare_harness.i[4552,4565] [2021-12-15 12:33:00,943 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:33:00,952 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:33:00,968 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:33:00,969 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:33:00,969 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:33:00,977 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:33:00,977 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:33:00,978 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:33:00,998 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:33:01,051 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-15 12:33:01,051 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-15 12:33:01,052 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-15 12:33:01,053 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-15 12:33:01,054 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-15 12:33:01,054 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-15 12:33:01,055 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-15 12:33:01,055 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-15 12:33:01,055 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-15 12:33:01,056 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-15 12:33:01,074 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-12-15 12:33:01,153 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:33:01,154 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:33:01,204 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 12:33:01,234 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 12:33:01,264 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/aws-c-common/aws_string_compare_harness.i[4492,4505] [2021-12-15 12:33:01,265 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/aws-c-common/aws_string_compare_harness.i[4552,4565] [2021-12-15 12:33:01,299 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:33:01,299 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:33:01,300 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:33:01,300 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:33:01,300 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:33:01,304 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:33:01,304 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:33:01,305 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:33:01,305 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:33:01,326 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-15 12:33:01,327 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-15 12:33:01,327 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-15 12:33:01,328 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-15 12:33:01,328 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-15 12:33:01,328 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-15 12:33:01,329 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-15 12:33:01,329 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-15 12:33:01,330 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-15 12:33:01,330 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-15 12:33:01,359 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-12-15 12:33:01,400 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:33:01,401 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:33:01,448 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 12:33:01,673 INFO L208 MainTranslator]: Completed translation [2021-12-15 12:33:01,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:33:01 WrapperNode [2021-12-15 12:33:01,674 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 12:33:01,675 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 12:33:01,675 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 12:33:01,675 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 12:33:01,681 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:33:01" (1/1) ... [2021-12-15 12:33:01,828 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:33:01" (1/1) ... [2021-12-15 12:33:01,913 INFO L137 Inliner]: procedures = 713, calls = 2780, calls flagged for inlining = 57, calls inlined = 5, statements flattened = 822 [2021-12-15 12:33:01,914 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 12:33:01,916 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 12:33:01,916 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 12:33:01,916 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 12:33:01,924 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:33:01" (1/1) ... [2021-12-15 12:33:01,925 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:33:01" (1/1) ... [2021-12-15 12:33:01,939 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:33:01" (1/1) ... [2021-12-15 12:33:01,940 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:33:01" (1/1) ... [2021-12-15 12:33:01,987 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:33:01" (1/1) ... [2021-12-15 12:33:01,999 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:33:01" (1/1) ... [2021-12-15 12:33:02,008 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:33:01" (1/1) ... [2021-12-15 12:33:02,021 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 12:33:02,022 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 12:33:02,022 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 12:33:02,022 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 12:33:02,022 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:33:01" (1/1) ... [2021-12-15 12:33:02,032 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 12:33:02,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 12:33:02,056 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 12:33:02,080 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 12:33:02,121 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2021-12-15 12:33:02,121 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2021-12-15 12:33:02,121 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_compare [2021-12-15 12:33:02,121 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_compare [2021-12-15 12:33:02,122 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2021-12-15 12:33:02,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2021-12-15 12:33:02,122 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-12-15 12:33:02,122 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-12-15 12:33:02,122 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-12-15 12:33:02,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 12:33:02,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-12-15 12:33:02,123 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-12-15 12:33:02,123 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-12-15 12:33:02,123 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-15 12:33:02,124 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 12:33:02,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-15 12:33:02,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 12:33:02,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 12:33:02,125 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-12-15 12:33:02,125 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-12-15 12:33:02,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-12-15 12:33:02,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-12-15 12:33:02,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-15 12:33:02,125 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_bytes [2021-12-15 12:33:02,125 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_bytes [2021-12-15 12:33:02,126 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-15 12:33:02,126 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-15 12:33:02,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-12-15 12:33:02,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-12-15 12:33:02,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-15 12:33:02,127 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2021-12-15 12:33:02,127 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2021-12-15 12:33:02,127 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2021-12-15 12:33:02,127 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2021-12-15 12:33:02,372 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 12:33:02,376 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 12:33:03,381 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 12:33:03,386 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 12:33:03,386 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-15 12:33:03,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 12:33:03 BoogieIcfgContainer [2021-12-15 12:33:03,389 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 12:33:03,391 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 12:33:03,392 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 12:33:03,396 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 12:33:03,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 12:32:58" (1/3) ... [2021-12-15 12:33:03,397 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@193c0f7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 12:33:03, skipping insertion in model container [2021-12-15 12:33:03,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:33:01" (2/3) ... [2021-12-15 12:33:03,398 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@193c0f7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 12:33:03, skipping insertion in model container [2021-12-15 12:33:03,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 12:33:03" (3/3) ... [2021-12-15 12:33:03,401 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_string_compare_harness.i [2021-12-15 12:33:03,405 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 12:33:03,406 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 12:33:03,460 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 12:33:03,467 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=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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 12:33:03,467 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 12:33:03,484 INFO L276 IsEmpty]: Start isEmpty. Operand has 124 states, 79 states have (on average 1.3037974683544304) internal successors, (103), 80 states have internal predecessors, (103), 33 states have call successors, (33), 10 states have call predecessors, (33), 10 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2021-12-15 12:33:03,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-12-15 12:33:03,494 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 12:33:03,495 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 12:33:03,495 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 12:33:03,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 12:33:03,500 INFO L85 PathProgramCache]: Analyzing trace with hash 2002868872, now seen corresponding path program 1 times [2021-12-15 12:33:03,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 12:33:03,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1083942853] [2021-12-15 12:33:03,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 12:33:03,515 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 12:33:03,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 12:33:03,519 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 12:33:03,520 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 12:33:03,632 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 12:33:03,829 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 12:33:03,829 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 12:33:03,833 INFO L158 Benchmark]: Toolchain (without parser) took 4893.55ms. Allocated memory was 56.6MB in the beginning and 157.3MB in the end (delta: 100.7MB). Free memory was 32.1MB in the beginning and 48.8MB in the end (delta: -16.7MB). Peak memory consumption was 85.2MB. Max. memory is 16.1GB. [2021-12-15 12:33:03,834 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 46.1MB. Free memory is still 28.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 12:33:03,834 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2732.07ms. Allocated memory was 56.6MB in the beginning and 157.3MB in the end (delta: 100.7MB). Free memory was 32.0MB in the beginning and 94.5MB in the end (delta: -62.6MB). Peak memory consumption was 51.1MB. Max. memory is 16.1GB. [2021-12-15 12:33:03,834 INFO L158 Benchmark]: Boogie Procedure Inliner took 239.53ms. Allocated memory is still 157.3MB. Free memory was 94.5MB in the beginning and 82.6MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-15 12:33:03,835 INFO L158 Benchmark]: Boogie Preprocessor took 104.73ms. Allocated memory is still 157.3MB. Free memory was 82.6MB in the beginning and 75.0MB in the end (delta: 7.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-15 12:33:03,835 INFO L158 Benchmark]: RCFGBuilder took 1368.46ms. Allocated memory is still 157.3MB. Free memory was 75.0MB in the beginning and 64.9MB in the end (delta: 10.0MB). Peak memory consumption was 46.7MB. Max. memory is 16.1GB. [2021-12-15 12:33:03,835 INFO L158 Benchmark]: TraceAbstraction took 441.19ms. Allocated memory is still 157.3MB. Free memory was 64.9MB in the beginning and 48.8MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-12-15 12:33:03,837 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 46.1MB. Free memory is still 28.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2732.07ms. Allocated memory was 56.6MB in the beginning and 157.3MB in the end (delta: 100.7MB). Free memory was 32.0MB in the beginning and 94.5MB in the end (delta: -62.6MB). Peak memory consumption was 51.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 239.53ms. Allocated memory is still 157.3MB. Free memory was 94.5MB in the beginning and 82.6MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 104.73ms. Allocated memory is still 157.3MB. Free memory was 82.6MB in the beginning and 75.0MB in the end (delta: 7.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1368.46ms. Allocated memory is still 157.3MB. Free memory was 75.0MB in the beginning and 64.9MB in the end (delta: 10.0MB). Peak memory consumption was 46.7MB. Max. memory is 16.1GB. * TraceAbstraction took 441.19ms. Allocated memory is still 157.3MB. Free memory was 64.9MB in the beginning and 48.8MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. 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 12:33:03,876 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