./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_byte_buf_secure_zero_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_byte_buf_secure_zero_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 9db28b965fea5f2f8d3364c7a869d0042b63b50d32f7a417c3baadcb401d0709 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 12:30:42,960 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 12:30:42,961 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 12:30:42,986 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 12:30:42,986 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 12:30:42,987 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 12:30:42,990 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 12:30:42,992 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 12:30:42,993 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 12:30:42,994 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 12:30:42,995 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 12:30:42,996 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 12:30:42,997 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 12:30:43,016 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 12:30:43,020 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 12:30:43,022 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 12:30:43,023 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 12:30:43,029 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 12:30:43,031 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 12:30:43,035 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 12:30:43,040 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 12:30:43,041 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 12:30:43,042 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 12:30:43,043 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 12:30:43,045 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 12:30:43,048 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 12:30:43,049 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 12:30:43,050 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 12:30:43,051 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 12:30:43,051 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 12:30:43,052 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 12:30:43,053 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 12:30:43,054 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 12:30:43,055 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 12:30:43,056 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 12:30:43,057 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 12:30:43,057 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 12:30:43,057 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 12:30:43,058 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 12:30:43,058 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 12:30:43,059 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 12:30:43,060 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-15 12:30:43,097 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 12:30:43,097 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 12:30:43,098 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 12:30:43,098 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 12:30:43,099 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 12:30:43,099 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 12:30:43,100 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 12:30:43,100 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 12:30:43,100 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 12:30:43,101 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 12:30:43,101 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 12:30:43,102 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 12:30:43,102 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 12:30:43,102 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 12:30:43,102 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 12:30:43,102 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 12:30:43,103 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 12:30:43,103 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 12:30:43,103 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 12:30:43,103 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 12:30:43,103 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 12:30:43,103 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 12:30:43,104 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 12:30:43,104 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 12:30:43,104 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 12:30:43,104 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 12:30:43,104 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 12:30:43,105 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 12:30:43,105 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 12:30:43,105 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 12:30:43,105 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 12:30:43,105 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9db28b965fea5f2f8d3364c7a869d0042b63b50d32f7a417c3baadcb401d0709 [2021-12-15 12:30:43,359 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 12:30:43,387 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 12:30:43,396 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 12:30:43,398 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 12:30:43,398 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 12:30:43,400 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_byte_buf_secure_zero_harness.i [2021-12-15 12:30:43,457 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c3c1f582/24a5714374d64b37a2094174ad91429a/FLAG5ca72e8c3 [2021-12-15 12:30:44,175 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 12:30:44,178 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_secure_zero_harness.i [2021-12-15 12:30:44,218 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c3c1f582/24a5714374d64b37a2094174ad91429a/FLAG5ca72e8c3 [2021-12-15 12:30:44,425 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c3c1f582/24a5714374d64b37a2094174ad91429a [2021-12-15 12:30:44,427 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 12:30:44,428 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 12:30:44,430 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 12:30:44,430 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 12:30:44,439 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 12:30:44,440 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 12:30:44" (1/1) ... [2021-12-15 12:30:44,442 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e65fe5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:44, skipping insertion in model container [2021-12-15 12:30:44,442 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 12:30:44" (1/1) ... [2021-12-15 12:30:44,447 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 12:30:44,524 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 12:30:44,749 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_byte_buf_secure_zero_harness.i[4498,4511] [2021-12-15 12:30:44,757 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_byte_buf_secure_zero_harness.i[4558,4571] [2021-12-15 12:30:45,425 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:45,426 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:45,426 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:45,427 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:45,428 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:45,442 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:45,443 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:45,445 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:45,445 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:45,727 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-15 12:30:45,729 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-15 12:30:45,730 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-15 12:30:45,731 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-15 12:30:45,735 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-15 12:30:45,739 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-15 12:30:45,741 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-15 12:30:45,741 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-15 12:30:45,760 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-15 12:30:45,761 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-15 12:30:45,978 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-12-15 12:30:46,217 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:46,218 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:46,336 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 12:30:46,418 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 12:30:46,450 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_byte_buf_secure_zero_harness.i[4498,4511] [2021-12-15 12:30:46,452 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_byte_buf_secure_zero_harness.i[4558,4571] [2021-12-15 12:30:46,520 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:46,520 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:46,521 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:46,522 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:46,522 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:46,529 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:46,538 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:46,539 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:46,540 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:46,588 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-15 12:30:46,604 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-15 12:30:46,604 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-15 12:30:46,607 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-15 12:30:46,608 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-15 12:30:46,608 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-15 12:30:46,608 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-15 12:30:46,609 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-15 12:30:46,609 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-15 12:30:46,613 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-15 12:30:46,643 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-12-15 12:30:46,791 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:46,791 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:46,833 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 12:30:47,153 INFO L208 MainTranslator]: Completed translation [2021-12-15 12:30:47,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:47 WrapperNode [2021-12-15 12:30:47,154 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 12:30:47,171 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 12:30:47,172 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 12:30:47,172 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 12:30:47,182 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:47" (1/1) ... [2021-12-15 12:30:47,380 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:47" (1/1) ... [2021-12-15 12:30:47,495 INFO L137 Inliner]: procedures = 691, calls = 2614, calls flagged for inlining = 60, calls inlined = 8, statements flattened = 796 [2021-12-15 12:30:47,496 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 12:30:47,497 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 12:30:47,497 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 12:30:47,497 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 12:30:47,518 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:47" (1/1) ... [2021-12-15 12:30:47,519 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:47" (1/1) ... [2021-12-15 12:30:47,529 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:47" (1/1) ... [2021-12-15 12:30:47,530 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:47" (1/1) ... [2021-12-15 12:30:47,613 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:47" (1/1) ... [2021-12-15 12:30:47,626 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:47" (1/1) ... [2021-12-15 12:30:47,635 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:47" (1/1) ... [2021-12-15 12:30:47,668 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 12:30:47,671 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 12:30:47,671 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 12:30:47,672 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 12:30:47,672 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:47" (1/1) ... [2021-12-15 12:30:47,684 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 12:30:47,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 12:30:47,737 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 12:30:47,803 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 12:30:47,834 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2021-12-15 12:30:47,834 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2021-12-15 12:30:47,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 12:30:47,835 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-12-15 12:30:47,835 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-12-15 12:30:47,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-15 12:30:47,835 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-12-15 12:30:47,835 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-12-15 12:30:47,836 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_secure_zero [2021-12-15 12:30:47,836 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_secure_zero [2021-12-15 12:30:47,836 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-15 12:30:47,837 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 12:30:47,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-15 12:30:47,838 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 12:30:47,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 12:30:47,838 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-12-15 12:30:47,838 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-12-15 12:30:47,838 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-15 12:30:47,838 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-15 12:30:47,838 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 12:30:47,839 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-15 12:30:47,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-15 12:30:47,839 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2021-12-15 12:30:47,839 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2021-12-15 12:30:47,839 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2021-12-15 12:30:47,839 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2021-12-15 12:30:47,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-15 12:30:47,846 INFO L130 BoogieDeclarations]: Found specification of procedure memset_impl [2021-12-15 12:30:47,846 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_impl [2021-12-15 12:30:47,847 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset [2021-12-15 12:30:47,847 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset [2021-12-15 12:30:47,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 12:30:48,251 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 12:30:48,252 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 12:30:48,937 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 12:30:48,945 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 12:30:48,946 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-15 12:30:48,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 12:30:48 BoogieIcfgContainer [2021-12-15 12:30:48,949 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 12:30:48,950 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 12:30:48,951 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 12:30:48,954 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 12:30:48,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 12:30:44" (1/3) ... [2021-12-15 12:30:48,955 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7facc7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 12:30:48, skipping insertion in model container [2021-12-15 12:30:48,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:47" (2/3) ... [2021-12-15 12:30:48,956 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7facc7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 12:30:48, skipping insertion in model container [2021-12-15 12:30:48,956 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 12:30:48" (3/3) ... [2021-12-15 12:30:48,957 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_secure_zero_harness.i [2021-12-15 12:30:48,962 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 12:30:48,963 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 12:30:49,006 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 12:30:49,012 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 12:30:49,012 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 12:30:49,060 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 70 states have (on average 1.2285714285714286) internal successors, (86), 71 states have internal predecessors, (86), 21 states have call successors, (21), 10 states have call predecessors, (21), 10 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2021-12-15 12:30:49,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-12-15 12:30:49,083 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 12:30:49,083 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 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, 1, 1, 1] [2021-12-15 12:30:49,084 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 12:30:49,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 12:30:49,090 INFO L85 PathProgramCache]: Analyzing trace with hash -70528239, now seen corresponding path program 1 times [2021-12-15 12:30:49,101 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 12:30:49,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837366972] [2021-12-15 12:30:49,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 12:30:49,103 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 12:30:49,224 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 12:30:49,225 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 12:30:49,230 INFO L158 Benchmark]: Toolchain (without parser) took 4800.54ms. Allocated memory was 113.2MB in the beginning and 249.6MB in the end (delta: 136.3MB). Free memory was 89.1MB in the beginning and 187.5MB in the end (delta: -98.5MB). Peak memory consumption was 39.6MB. Max. memory is 16.1GB. [2021-12-15 12:30:49,230 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 86.0MB. Free memory is still 65.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 12:30:49,231 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2724.65ms. Allocated memory was 113.2MB in the beginning and 178.3MB in the end (delta: 65.0MB). Free memory was 88.8MB in the beginning and 91.5MB in the end (delta: -2.7MB). Peak memory consumption was 83.2MB. Max. memory is 16.1GB. [2021-12-15 12:30:49,231 INFO L158 Benchmark]: Boogie Procedure Inliner took 324.49ms. Allocated memory is still 178.3MB. Free memory was 91.5MB in the beginning and 80.1MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-15 12:30:49,232 INFO L158 Benchmark]: Boogie Preprocessor took 173.69ms. Allocated memory is still 178.3MB. Free memory was 80.1MB in the beginning and 125.2MB in the end (delta: -45.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 12:30:49,232 INFO L158 Benchmark]: RCFGBuilder took 1277.99ms. Allocated memory is still 178.3MB. Free memory was 125.2MB in the beginning and 116.4MB in the end (delta: 8.8MB). Peak memory consumption was 66.5MB. Max. memory is 16.1GB. [2021-12-15 12:30:49,233 INFO L158 Benchmark]: TraceAbstraction took 277.59ms. Allocated memory was 178.3MB in the beginning and 249.6MB in the end (delta: 71.3MB). Free memory was 115.4MB in the beginning and 187.5MB in the end (delta: -72.2MB). Peak memory consumption was 183.0kB. Max. memory is 16.1GB. [2021-12-15 12:30:49,235 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 86.0MB. Free memory is still 65.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2724.65ms. Allocated memory was 113.2MB in the beginning and 178.3MB in the end (delta: 65.0MB). Free memory was 88.8MB in the beginning and 91.5MB in the end (delta: -2.7MB). Peak memory consumption was 83.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 324.49ms. Allocated memory is still 178.3MB. Free memory was 91.5MB in the beginning and 80.1MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 173.69ms. Allocated memory is still 178.3MB. Free memory was 80.1MB in the beginning and 125.2MB in the end (delta: -45.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1277.99ms. Allocated memory is still 178.3MB. Free memory was 125.2MB in the beginning and 116.4MB in the end (delta: 8.8MB). Peak memory consumption was 66.5MB. Max. memory is 16.1GB. * TraceAbstraction took 277.59ms. Allocated memory was 178.3MB in the beginning and 249.6MB in the end (delta: 71.3MB). Free memory was 115.4MB in the beginning and 187.5MB in the end (delta: -72.2MB). Peak memory consumption was 183.0kB. 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 12:30:49,277 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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_byte_buf_secure_zero_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 9db28b965fea5f2f8d3364c7a869d0042b63b50d32f7a417c3baadcb401d0709 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 12:30:51,348 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 12:30:51,350 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 12:30:51,395 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 12:30:51,396 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 12:30:51,401 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 12:30:51,402 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 12:30:51,407 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 12:30:51,409 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 12:30:51,412 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 12:30:51,413 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 12:30:51,414 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 12:30:51,415 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 12:30:51,420 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 12:30:51,422 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 12:30:51,423 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 12:30:51,427 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 12:30:51,428 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 12:30:51,429 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 12:30:51,432 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 12:30:51,434 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 12:30:51,436 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 12:30:51,437 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 12:30:51,438 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 12:30:51,441 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 12:30:51,444 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 12:30:51,444 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 12:30:51,445 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 12:30:51,446 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 12:30:51,447 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 12:30:51,448 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 12:30:51,448 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 12:30:51,449 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 12:30:51,450 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 12:30:51,451 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 12:30:51,452 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 12:30:51,452 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 12:30:51,453 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 12:30:51,453 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 12:30:51,454 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 12:30:51,455 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 12:30:51,456 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2021-12-15 12:30:51,484 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 12:30:51,485 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 12:30:51,486 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 12:30:51,486 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 12:30:51,487 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 12:30:51,487 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 12:30:51,488 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 12:30:51,488 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 12:30:51,488 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 12:30:51,488 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 12:30:51,489 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 12:30:51,489 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 12:30:51,489 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 12:30:51,490 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 12:30:51,490 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 12:30:51,490 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 12:30:51,490 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 12:30:51,490 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 12:30:51,491 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 12:30:51,491 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 12:30:51,491 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 12:30:51,491 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 12:30:51,491 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 12:30:51,491 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 12:30:51,492 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 12:30:51,492 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 12:30:51,492 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 12:30:51,492 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 12:30:51,492 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 12:30:51,493 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 12:30:51,493 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 12:30:51,493 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 12:30:51,493 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 12:30:51,493 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 12:30:51,494 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9db28b965fea5f2f8d3364c7a869d0042b63b50d32f7a417c3baadcb401d0709 [2021-12-15 12:30:51,798 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 12:30:51,830 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 12:30:51,833 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 12:30:51,834 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 12:30:51,835 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 12:30:51,836 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_byte_buf_secure_zero_harness.i [2021-12-15 12:30:51,898 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7717a1dd7/fddd508b774f4211ab78c67d8837d6bd/FLAG58c731d69 [2021-12-15 12:30:52,745 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 12:30:52,748 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_secure_zero_harness.i [2021-12-15 12:30:52,800 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7717a1dd7/fddd508b774f4211ab78c67d8837d6bd/FLAG58c731d69 [2021-12-15 12:30:52,904 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7717a1dd7/fddd508b774f4211ab78c67d8837d6bd [2021-12-15 12:30:52,907 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 12:30:52,909 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 12:30:52,911 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 12:30:52,911 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 12:30:52,914 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 12:30:52,915 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 12:30:52" (1/1) ... [2021-12-15 12:30:52,918 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ffce40b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:52, skipping insertion in model container [2021-12-15 12:30:52,918 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 12:30:52" (1/1) ... [2021-12-15 12:30:52,926 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 12:30:53,027 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 12:30:53,373 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_byte_buf_secure_zero_harness.i[4498,4511] [2021-12-15 12:30:53,382 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_byte_buf_secure_zero_harness.i[4558,4571] [2021-12-15 12:30:54,301 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:54,303 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:54,305 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:54,306 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:54,307 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:54,325 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:54,327 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:54,329 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:54,330 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:54,635 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-15 12:30:54,636 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-15 12:30:54,637 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-15 12:30:54,639 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-15 12:30:54,643 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-15 12:30:54,647 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-15 12:30:54,651 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-15 12:30:54,651 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-15 12:30:54,652 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-15 12:30:54,652 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-15 12:30:54,777 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-12-15 12:30:54,877 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:54,878 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:54,941 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 12:30:55,023 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-12-15 12:30:55,069 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 12:30:55,073 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_byte_buf_secure_zero_harness.i[4498,4511] [2021-12-15 12:30:55,074 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_byte_buf_secure_zero_harness.i[4558,4571] [2021-12-15 12:30:55,121 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:55,121 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:55,123 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:55,124 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:55,127 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:55,142 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:55,143 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:55,145 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:55,145 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:55,173 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-15 12:30:55,174 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-15 12:30:55,175 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-15 12:30:55,175 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-15 12:30:55,176 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-15 12:30:55,176 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-15 12:30:55,177 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-15 12:30:55,177 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-15 12:30:55,178 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-15 12:30:55,178 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-15 12:30:55,212 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-12-15 12:30:55,291 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:55,292 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:55,352 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 12:30:55,387 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 12:30:55,406 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_byte_buf_secure_zero_harness.i[4498,4511] [2021-12-15 12:30:55,407 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_byte_buf_secure_zero_harness.i[4558,4571] [2021-12-15 12:30:55,437 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:55,438 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:55,438 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:55,438 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:55,439 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:55,444 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:55,445 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:55,472 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:55,487 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:55,516 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-15 12:30:55,517 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-15 12:30:55,517 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-15 12:30:55,518 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-15 12:30:55,518 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-15 12:30:55,519 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-15 12:30:55,524 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-15 12:30:55,525 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-15 12:30:55,526 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-15 12:30:55,527 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-15 12:30:55,559 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-12-15 12:30:55,618 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:55,618 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:55,679 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 12:30:55,923 INFO L208 MainTranslator]: Completed translation [2021-12-15 12:30:55,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:55 WrapperNode [2021-12-15 12:30:55,924 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 12:30:55,925 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 12:30:55,925 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 12:30:55,925 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 12:30:55,932 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:55" (1/1) ... [2021-12-15 12:30:56,049 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:55" (1/1) ... [2021-12-15 12:30:56,132 INFO L137 Inliner]: procedures = 711, calls = 2614, calls flagged for inlining = 60, calls inlined = 8, statements flattened = 797 [2021-12-15 12:30:56,133 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 12:30:56,134 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 12:30:56,134 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 12:30:56,134 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 12:30:56,142 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:55" (1/1) ... [2021-12-15 12:30:56,151 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:55" (1/1) ... [2021-12-15 12:30:56,162 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:55" (1/1) ... [2021-12-15 12:30:56,163 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:55" (1/1) ... [2021-12-15 12:30:56,219 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:55" (1/1) ... [2021-12-15 12:30:56,225 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:55" (1/1) ... [2021-12-15 12:30:56,235 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:55" (1/1) ... [2021-12-15 12:30:56,261 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 12:30:56,274 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 12:30:56,274 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 12:30:56,274 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 12:30:56,275 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:55" (1/1) ... [2021-12-15 12:30:56,281 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 12:30:56,293 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 12:30:56,309 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 12:30:56,327 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 12:30:56,363 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2021-12-15 12:30:56,364 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2021-12-15 12:30:56,364 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 12:30:56,364 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-12-15 12:30:56,364 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-12-15 12:30:56,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 12:30:56,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-12-15 12:30:56,365 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-12-15 12:30:56,365 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-12-15 12:30:56,365 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_secure_zero [2021-12-15 12:30:56,365 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_secure_zero [2021-12-15 12:30:56,365 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-15 12:30:56,365 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 12:30:56,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-15 12:30:56,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 12:30:56,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 12:30:56,366 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-12-15 12:30:56,366 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-12-15 12:30:56,366 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-12-15 12:30:56,367 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-12-15 12:30:56,367 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-15 12:30:56,367 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-15 12:30:56,367 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 12:30:56,367 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-15 12:30:56,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-12-15 12:30:56,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-12-15 12:30:56,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-15 12:30:56,368 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2021-12-15 12:30:56,368 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2021-12-15 12:30:56,368 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2021-12-15 12:30:56,369 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2021-12-15 12:30:56,369 INFO L130 BoogieDeclarations]: Found specification of procedure memset_impl [2021-12-15 12:30:56,369 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_impl [2021-12-15 12:30:56,369 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset [2021-12-15 12:30:56,369 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset [2021-12-15 12:30:56,705 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 12:30:56,707 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 12:30:57,802 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 12:30:57,811 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 12:30:57,811 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-15 12:30:57,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 12:30:57 BoogieIcfgContainer [2021-12-15 12:30:57,815 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 12:30:57,818 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 12:30:57,820 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 12:30:57,823 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 12:30:57,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 12:30:52" (1/3) ... [2021-12-15 12:30:57,824 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@864ab8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 12:30:57, skipping insertion in model container [2021-12-15 12:30:57,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:55" (2/3) ... [2021-12-15 12:30:57,826 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@864ab8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 12:30:57, skipping insertion in model container [2021-12-15 12:30:57,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 12:30:57" (3/3) ... [2021-12-15 12:30:57,827 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_secure_zero_harness.i [2021-12-15 12:30:57,841 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 12:30:57,846 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 12:30:57,905 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 12:30:57,911 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 12:30:57,912 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 12:30:57,930 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 70 states have (on average 1.2285714285714286) internal successors, (86), 71 states have internal predecessors, (86), 21 states have call successors, (21), 10 states have call predecessors, (21), 10 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2021-12-15 12:30:57,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-12-15 12:30:57,939 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 12:30:57,940 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 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, 1, 1, 1] [2021-12-15 12:30:57,941 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 12:30:57,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 12:30:57,946 INFO L85 PathProgramCache]: Analyzing trace with hash -70528239, now seen corresponding path program 1 times [2021-12-15 12:30:57,961 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 12:30:57,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1590741942] [2021-12-15 12:30:57,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 12:30:57,962 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 12:30:57,962 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 12:30:57,967 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 12:30:58,005 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 12:30:58,082 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 12:30:58,279 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 12:30:58,280 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 12:30:58,285 INFO L158 Benchmark]: Toolchain (without parser) took 5375.19ms. Allocated memory was 54.5MB in the beginning and 159.4MB in the end (delta: 104.9MB). Free memory was 33.9MB in the beginning and 48.3MB in the end (delta: -14.4MB). Peak memory consumption was 90.4MB. Max. memory is 16.1GB. [2021-12-15 12:30:58,285 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 54.5MB. Free memory was 37.1MB in the beginning and 37.1MB in the end (delta: 36.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 12:30:58,285 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3013.13ms. Allocated memory was 54.5MB in the beginning and 159.4MB in the end (delta: 104.9MB). Free memory was 33.8MB in the beginning and 80.3MB in the end (delta: -46.6MB). Peak memory consumption was 61.6MB. Max. memory is 16.1GB. [2021-12-15 12:30:58,286 INFO L158 Benchmark]: Boogie Procedure Inliner took 207.82ms. Allocated memory is still 159.4MB. Free memory was 79.7MB in the beginning and 104.6MB in the end (delta: -24.9MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. [2021-12-15 12:30:58,286 INFO L158 Benchmark]: Boogie Preprocessor took 139.26ms. Allocated memory is still 159.4MB. Free memory was 104.6MB in the beginning and 97.3MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-15 12:30:58,286 INFO L158 Benchmark]: RCFGBuilder took 1541.13ms. Allocated memory is still 159.4MB. Free memory was 97.3MB in the beginning and 64.5MB in the end (delta: 32.8MB). Peak memory consumption was 70.6MB. Max. memory is 16.1GB. [2021-12-15 12:30:58,286 INFO L158 Benchmark]: TraceAbstraction took 465.86ms. Allocated memory is still 159.4MB. Free memory was 64.5MB in the beginning and 49.4MB in the end (delta: 15.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-12-15 12:30:58,290 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 54.5MB. Free memory was 37.1MB in the beginning and 37.1MB in the end (delta: 36.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3013.13ms. Allocated memory was 54.5MB in the beginning and 159.4MB in the end (delta: 104.9MB). Free memory was 33.8MB in the beginning and 80.3MB in the end (delta: -46.6MB). Peak memory consumption was 61.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 207.82ms. Allocated memory is still 159.4MB. Free memory was 79.7MB in the beginning and 104.6MB in the end (delta: -24.9MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 139.26ms. Allocated memory is still 159.4MB. Free memory was 104.6MB in the beginning and 97.3MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1541.13ms. Allocated memory is still 159.4MB. Free memory was 97.3MB in the beginning and 64.5MB in the end (delta: 32.8MB). Peak memory consumption was 70.6MB. Max. memory is 16.1GB. * TraceAbstraction took 465.86ms. Allocated memory is still 159.4MB. Free memory was 64.5MB in the beginning and 49.4MB in the end (delta: 15.1MB). 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 12:30:58,372 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