./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_byte_buf_init_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_init_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 7d8c1ced61af2c61b36782af6d28a32546abe33f0c852d8f862ae04f74aae5e5 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 12:30:40,078 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 12:30:40,083 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 12:30:40,137 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 12:30:40,137 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 12:30:40,138 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 12:30:40,139 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 12:30:40,140 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 12:30:40,141 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 12:30:40,142 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 12:30:40,143 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 12:30:40,143 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 12:30:40,144 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 12:30:40,144 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 12:30:40,145 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 12:30:40,146 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 12:30:40,147 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 12:30:40,148 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 12:30:40,149 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 12:30:40,150 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 12:30:40,151 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 12:30:40,157 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 12:30:40,158 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 12:30:40,161 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 12:30:40,163 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 12:30:40,166 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 12:30:40,167 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 12:30:40,168 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 12:30:40,168 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 12:30:40,169 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 12:30:40,170 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 12:30:40,170 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 12:30:40,171 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 12:30:40,172 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 12:30:40,173 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 12:30:40,174 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 12:30:40,175 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 12:30:40,175 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 12:30:40,175 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 12:30:40,176 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 12:30:40,178 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 12:30:40,179 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-15 12:30:40,205 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 12:30:40,205 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 12:30:40,206 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 12:30:40,206 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 12:30:40,207 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 12:30:40,207 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 12:30:40,207 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 12:30:40,208 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 12:30:40,208 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 12:30:40,208 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 12:30:40,209 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 12:30:40,209 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 12:30:40,209 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 12:30:40,209 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 12:30:40,209 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 12:30:40,209 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 12:30:40,210 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 12:30:40,210 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 12:30:40,210 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 12:30:40,210 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 12:30:40,210 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 12:30:40,210 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 12:30:40,211 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 12:30:40,211 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 12:30:40,211 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 12:30:40,211 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 12:30:40,211 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 12:30:40,211 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 12:30:40,212 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 12:30:40,212 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 12:30:40,212 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 12:30:40,212 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7d8c1ced61af2c61b36782af6d28a32546abe33f0c852d8f862ae04f74aae5e5 [2021-12-15 12:30:40,418 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 12:30:40,442 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 12:30:40,444 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 12:30:40,445 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 12:30:40,446 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 12:30:40,447 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_byte_buf_init_harness.i [2021-12-15 12:30:40,498 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c2ffac4b/0fdf1f383c2b4dbfa56b785d7e4a1bde/FLAG2b2af16a8 [2021-12-15 12:30:41,094 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 12:30:41,094 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_init_harness.i [2021-12-15 12:30:41,133 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c2ffac4b/0fdf1f383c2b4dbfa56b785d7e4a1bde/FLAG2b2af16a8 [2021-12-15 12:30:41,292 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c2ffac4b/0fdf1f383c2b4dbfa56b785d7e4a1bde [2021-12-15 12:30:41,294 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 12:30:41,295 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 12:30:41,306 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 12:30:41,306 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 12:30:41,308 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 12:30:41,309 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 12:30:41" (1/1) ... [2021-12-15 12:30:41,310 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ae16856 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:41, skipping insertion in model container [2021-12-15 12:30:41,311 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 12:30:41" (1/1) ... [2021-12-15 12:30:41,316 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 12:30:41,389 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 12:30:41,618 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_init_harness.i[4491,4504] [2021-12-15 12:30:41,624 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_init_harness.i[4551,4564] [2021-12-15 12:30:42,208 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:42,210 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:42,210 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:42,211 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:42,213 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:42,235 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:42,241 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:42,243 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:42,244 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:42,446 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-15 12:30:42,448 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-15 12:30:42,449 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-15 12:30:42,449 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-15 12:30:42,450 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-15 12:30:42,450 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-15 12:30:42,451 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-15 12:30:42,451 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-15 12:30:42,451 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-15 12:30:42,452 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-15 12:30:42,534 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-12-15 12:30:42,627 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:42,628 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:42,678 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 12:30:42,716 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 12:30:42,729 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_init_harness.i[4491,4504] [2021-12-15 12:30:42,731 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_init_harness.i[4551,4564] [2021-12-15 12:30:42,759 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:42,759 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:42,759 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:42,759 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:42,760 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:42,765 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:42,765 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:42,766 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:42,766 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:42,804 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-15 12:30:42,808 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-15 12:30:42,808 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-15 12:30:42,809 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-15 12:30:42,810 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-15 12:30:42,810 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-15 12:30:42,810 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-15 12:30:42,811 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-15 12:30:42,811 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-15 12:30:42,812 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-15 12:30:42,835 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-12-15 12:30:42,861 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:42,861 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:42,905 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 12:30:43,044 INFO L208 MainTranslator]: Completed translation [2021-12-15 12:30:43,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:43 WrapperNode [2021-12-15 12:30:43,044 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 12:30:43,045 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 12:30:43,045 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 12:30:43,045 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 12:30:43,050 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:43" (1/1) ... [2021-12-15 12:30:43,119 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:43" (1/1) ... [2021-12-15 12:30:43,175 INFO L137 Inliner]: procedures = 690, calls = 2496, calls flagged for inlining = 54, calls inlined = 5, statements flattened = 779 [2021-12-15 12:30:43,177 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 12:30:43,177 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 12:30:43,177 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 12:30:43,178 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 12:30:43,184 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:43" (1/1) ... [2021-12-15 12:30:43,184 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:43" (1/1) ... [2021-12-15 12:30:43,189 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:43" (1/1) ... [2021-12-15 12:30:43,192 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:43" (1/1) ... [2021-12-15 12:30:43,214 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:43" (1/1) ... [2021-12-15 12:30:43,217 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:43" (1/1) ... [2021-12-15 12:30:43,236 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:43" (1/1) ... [2021-12-15 12:30:43,243 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 12:30:43,259 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 12:30:43,260 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 12:30:43,260 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 12:30:43,261 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:43" (1/1) ... [2021-12-15 12:30:43,266 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 12:30:43,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 12:30:43,288 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 12:30:43,304 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 12:30:43,316 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2021-12-15 12:30:43,317 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2021-12-15 12:30:43,317 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 12:30:43,317 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-12-15 12:30:43,317 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-12-15 12:30:43,317 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2021-12-15 12:30:43,317 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2021-12-15 12:30:43,318 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-15 12:30:43,318 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2021-12-15 12:30:43,318 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2021-12-15 12:30:43,318 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-12-15 12:30:43,319 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-12-15 12:30:43,319 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-15 12:30:43,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 12:30:43,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-15 12:30:43,320 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 12:30:43,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 12:30:43,321 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-12-15 12:30:43,321 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-12-15 12:30:43,321 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2021-12-15 12:30:43,321 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2021-12-15 12:30:43,321 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-15 12:30:43,321 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-15 12:30:43,322 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_acquire [2021-12-15 12:30:43,322 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_acquire [2021-12-15 12:30:43,322 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 12:30:43,322 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-15 12:30:43,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-15 12:30:43,323 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2021-12-15 12:30:43,323 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2021-12-15 12:30:43,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-15 12:30:43,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 12:30:43,463 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 12:30:43,464 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 12:30:43,998 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 12:30:44,006 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 12:30:44,006 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-15 12:30:44,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 12:30:44 BoogieIcfgContainer [2021-12-15 12:30:44,009 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 12:30:44,011 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 12:30:44,011 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 12:30:44,014 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 12:30:44,014 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 12:30:41" (1/3) ... [2021-12-15 12:30:44,016 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4203eb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 12:30:44, skipping insertion in model container [2021-12-15 12:30:44,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:43" (2/3) ... [2021-12-15 12:30:44,016 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4203eb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 12:30:44, skipping insertion in model container [2021-12-15 12:30:44,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 12:30:44" (3/3) ... [2021-12-15 12:30:44,017 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_init_harness.i [2021-12-15 12:30:44,023 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 12:30:44,023 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 12:30:44,074 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 12:30:44,079 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 12:30:44,080 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 12:30:44,093 INFO L276 IsEmpty]: Start isEmpty. Operand has 99 states, 67 states have (on average 1.2388059701492538) internal successors, (83), 68 states have internal predecessors, (83), 20 states have call successors, (20), 10 states have call predecessors, (20), 10 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2021-12-15 12:30:44,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-12-15 12:30:44,098 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 12:30:44,099 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-15 12:30:44,100 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 12:30:44,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 12:30:44,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1013294361, now seen corresponding path program 1 times [2021-12-15 12:30:44,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 12:30:44,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465041292] [2021-12-15 12:30:44,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 12:30:44,113 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 12:30:44,217 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 12:30:44,218 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 12:30:44,225 INFO L158 Benchmark]: Toolchain (without parser) took 2928.22ms. Allocated memory was 94.4MB in the beginning and 169.9MB in the end (delta: 75.5MB). Free memory was 57.4MB in the beginning and 76.8MB in the end (delta: -19.4MB). Peak memory consumption was 54.8MB. Max. memory is 16.1GB. [2021-12-15 12:30:44,225 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 94.4MB. Free memory is still 50.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 12:30:44,228 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1738.85ms. Allocated memory was 94.4MB in the beginning and 130.0MB in the end (delta: 35.7MB). Free memory was 57.2MB in the beginning and 50.2MB in the end (delta: 7.0MB). Peak memory consumption was 64.1MB. Max. memory is 16.1GB. [2021-12-15 12:30:44,229 INFO L158 Benchmark]: Boogie Procedure Inliner took 131.78ms. Allocated memory was 130.0MB in the beginning and 169.9MB in the end (delta: 39.8MB). Free memory was 50.2MB in the beginning and 113.4MB in the end (delta: -63.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-15 12:30:44,229 INFO L158 Benchmark]: Boogie Preprocessor took 81.52ms. Allocated memory is still 169.9MB. Free memory was 113.4MB in the beginning and 107.1MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-15 12:30:44,230 INFO L158 Benchmark]: RCFGBuilder took 749.37ms. Allocated memory is still 169.9MB. Free memory was 107.1MB in the beginning and 90.5MB in the end (delta: 16.7MB). Peak memory consumption was 59.3MB. Max. memory is 16.1GB. [2021-12-15 12:30:44,231 INFO L158 Benchmark]: TraceAbstraction took 212.02ms. Allocated memory is still 169.9MB. Free memory was 90.5MB in the beginning and 76.8MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-15 12:30:44,241 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 94.4MB. Free memory is still 50.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1738.85ms. Allocated memory was 94.4MB in the beginning and 130.0MB in the end (delta: 35.7MB). Free memory was 57.2MB in the beginning and 50.2MB in the end (delta: 7.0MB). Peak memory consumption was 64.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 131.78ms. Allocated memory was 130.0MB in the beginning and 169.9MB in the end (delta: 39.8MB). Free memory was 50.2MB in the beginning and 113.4MB in the end (delta: -63.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 81.52ms. Allocated memory is still 169.9MB. Free memory was 113.4MB in the beginning and 107.1MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 749.37ms. Allocated memory is still 169.9MB. Free memory was 107.1MB in the beginning and 90.5MB in the end (delta: 16.7MB). Peak memory consumption was 59.3MB. Max. memory is 16.1GB. * TraceAbstraction took 212.02ms. Allocated memory is still 169.9MB. Free memory was 90.5MB in the beginning and 76.8MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. 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 12:30:44,281 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_byte_buf_init_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 7d8c1ced61af2c61b36782af6d28a32546abe33f0c852d8f862ae04f74aae5e5 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 12:30:46,087 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 12:30:46,088 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 12:30:46,114 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 12:30:46,115 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 12:30:46,117 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 12:30:46,119 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 12:30:46,123 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 12:30:46,124 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 12:30:46,128 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 12:30:46,129 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 12:30:46,131 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 12:30:46,132 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 12:30:46,134 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 12:30:46,135 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 12:30:46,137 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 12:30:46,138 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 12:30:46,139 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 12:30:46,140 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 12:30:46,146 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 12:30:46,147 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 12:30:46,147 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 12:30:46,148 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 12:30:46,149 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 12:30:46,154 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 12:30:46,154 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 12:30:46,155 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 12:30:46,156 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 12:30:46,156 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 12:30:46,157 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 12:30:46,157 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 12:30:46,158 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 12:30:46,159 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 12:30:46,159 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 12:30:46,160 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 12:30:46,160 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 12:30:46,161 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 12:30:46,161 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 12:30:46,161 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 12:30:46,162 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 12:30:46,163 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 12:30:46,163 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2021-12-15 12:30:46,196 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 12:30:46,197 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 12:30:46,198 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 12:30:46,198 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 12:30:46,199 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 12:30:46,199 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 12:30:46,200 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 12:30:46,200 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 12:30:46,200 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 12:30:46,200 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 12:30:46,201 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 12:30:46,201 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 12:30:46,201 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 12:30:46,201 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 12:30:46,201 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 12:30:46,202 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 12:30:46,202 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 12:30:46,202 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 12:30:46,202 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 12:30:46,202 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 12:30:46,202 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 12:30:46,202 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 12:30:46,202 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 12:30:46,203 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 12:30:46,203 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 12:30:46,213 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 12:30:46,213 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 12:30:46,213 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 12:30:46,214 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 12:30:46,214 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 12:30:46,214 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 12:30:46,214 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 12:30:46,214 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 12:30:46,215 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 12:30:46,215 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7d8c1ced61af2c61b36782af6d28a32546abe33f0c852d8f862ae04f74aae5e5 [2021-12-15 12:30:46,479 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 12:30:46,496 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 12:30:46,499 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 12:30:46,499 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 12:30:46,500 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 12:30:46,501 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_byte_buf_init_harness.i [2021-12-15 12:30:46,545 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea2871738/321fcf172ccd44438906ded2e348707c/FLAG840432b12 [2021-12-15 12:30:47,160 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 12:30:47,162 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_init_harness.i [2021-12-15 12:30:47,194 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea2871738/321fcf172ccd44438906ded2e348707c/FLAG840432b12 [2021-12-15 12:30:47,355 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea2871738/321fcf172ccd44438906ded2e348707c [2021-12-15 12:30:47,357 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 12:30:47,359 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 12:30:47,361 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 12:30:47,361 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 12:30:47,364 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 12:30:47,364 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 12:30:47" (1/1) ... [2021-12-15 12:30:47,365 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@692d2ab2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:47, skipping insertion in model container [2021-12-15 12:30:47,365 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 12:30:47" (1/1) ... [2021-12-15 12:30:47,371 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 12:30:47,449 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 12:30:47,689 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_init_harness.i[4491,4504] [2021-12-15 12:30:47,697 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_init_harness.i[4551,4564] [2021-12-15 12:30:48,257 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:48,258 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:48,258 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:48,259 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:48,260 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:48,270 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:48,279 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:48,280 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:48,281 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:48,483 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-15 12:30:48,485 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-15 12:30:48,485 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-15 12:30:48,487 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-15 12:30:48,491 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-15 12:30:48,494 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-15 12:30:48,495 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-15 12:30:48,498 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-15 12:30:48,500 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-15 12:30:48,502 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-15 12:30:48,618 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-12-15 12:30:48,678 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:48,678 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:48,745 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 12:30:48,801 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-12-15 12:30:48,868 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 12:30:48,872 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_init_harness.i[4491,4504] [2021-12-15 12:30:48,873 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_init_harness.i[4551,4564] [2021-12-15 12:30:48,917 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:48,918 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:48,920 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:48,922 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:48,923 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:48,928 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:48,929 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:48,931 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:48,931 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:48,997 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-15 12:30:48,999 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-15 12:30:49,000 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-15 12:30:49,000 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-15 12:30:49,001 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-15 12:30:49,001 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-15 12:30:49,002 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-15 12:30:49,002 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-15 12:30:49,002 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-15 12:30:49,003 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-15 12:30:49,023 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-12-15 12:30:49,065 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:49,065 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:49,098 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 12:30:49,130 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 12:30:49,149 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_init_harness.i[4491,4504] [2021-12-15 12:30:49,150 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_init_harness.i[4551,4564] [2021-12-15 12:30:49,183 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:49,184 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:49,184 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:49,185 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:49,185 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:49,190 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:49,190 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:49,191 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:49,191 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:49,213 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-15 12:30:49,214 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-15 12:30:49,214 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-15 12:30:49,214 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-15 12:30:49,215 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-15 12:30:49,215 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-15 12:30:49,216 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-15 12:30:49,216 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-15 12:30:49,216 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-15 12:30:49,216 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-15 12:30:49,229 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-12-15 12:30:49,278 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:49,278 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-15 12:30:49,296 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 12:30:49,483 INFO L208 MainTranslator]: Completed translation [2021-12-15 12:30:49,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:49 WrapperNode [2021-12-15 12:30:49,484 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 12:30:49,485 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 12:30:49,486 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 12:30:49,486 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 12:30:49,490 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:49" (1/1) ... [2021-12-15 12:30:49,572 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:49" (1/1) ... [2021-12-15 12:30:49,652 INFO L137 Inliner]: procedures = 710, calls = 2496, calls flagged for inlining = 54, calls inlined = 5, statements flattened = 779 [2021-12-15 12:30:49,659 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 12:30:49,659 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 12:30:49,659 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 12:30:49,660 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 12:30:49,668 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:49" (1/1) ... [2021-12-15 12:30:49,670 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:49" (1/1) ... [2021-12-15 12:30:49,678 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:49" (1/1) ... [2021-12-15 12:30:49,678 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:49" (1/1) ... [2021-12-15 12:30:49,734 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:49" (1/1) ... [2021-12-15 12:30:49,776 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:49" (1/1) ... [2021-12-15 12:30:49,787 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:49" (1/1) ... [2021-12-15 12:30:49,795 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 12:30:49,800 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 12:30:49,800 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 12:30:49,801 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 12:30:49,801 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:49" (1/1) ... [2021-12-15 12:30:49,807 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 12:30:49,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 12:30:49,828 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 12:30:49,845 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 12:30:49,872 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2021-12-15 12:30:49,872 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2021-12-15 12:30:49,872 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 12:30:49,872 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-12-15 12:30:49,873 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-12-15 12:30:49,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 12:30:49,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-12-15 12:30:49,873 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2021-12-15 12:30:49,873 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2021-12-15 12:30:49,873 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2021-12-15 12:30:49,873 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2021-12-15 12:30:49,873 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-12-15 12:30:49,874 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-12-15 12:30:49,874 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-15 12:30:49,874 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 12:30:49,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-15 12:30:49,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 12:30:49,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 12:30:49,875 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-12-15 12:30:49,875 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-12-15 12:30:49,875 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-12-15 12:30:49,875 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2021-12-15 12:30:49,875 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2021-12-15 12:30:49,875 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-15 12:30:49,875 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-15 12:30:49,876 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_acquire [2021-12-15 12:30:49,876 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_acquire [2021-12-15 12:30:49,876 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 12:30:49,876 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-15 12:30:49,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-12-15 12:30:49,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-15 12:30:49,877 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2021-12-15 12:30:49,877 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2021-12-15 12:30:50,143 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 12:30:50,144 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 12:30:52,930 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 12:30:52,937 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 12:30:52,939 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-15 12:30:52,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 12:30:52 BoogieIcfgContainer [2021-12-15 12:30:52,941 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 12:30:52,942 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 12:30:52,943 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 12:30:52,945 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 12:30:52,957 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 12:30:47" (1/3) ... [2021-12-15 12:30:52,957 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ec41d6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 12:30:52, skipping insertion in model container [2021-12-15 12:30:52,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:30:49" (2/3) ... [2021-12-15 12:30:52,958 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ec41d6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 12:30:52, skipping insertion in model container [2021-12-15 12:30:52,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 12:30:52" (3/3) ... [2021-12-15 12:30:52,961 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_init_harness.i [2021-12-15 12:30:52,966 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 12:30:52,966 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 12:30:53,009 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 12:30:53,016 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 12:30:53,017 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 12:30:53,036 INFO L276 IsEmpty]: Start isEmpty. Operand has 99 states, 67 states have (on average 1.2388059701492538) internal successors, (83), 68 states have internal predecessors, (83), 20 states have call successors, (20), 10 states have call predecessors, (20), 10 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2021-12-15 12:30:53,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-12-15 12:30:53,043 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 12:30:53,043 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-15 12:30:53,044 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 12:30:53,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 12:30:53,049 INFO L85 PathProgramCache]: Analyzing trace with hash -1013294361, now seen corresponding path program 1 times [2021-12-15 12:30:53,065 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 12:30:53,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [939671485] [2021-12-15 12:30:53,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 12:30:53,067 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 12:30:53,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 12:30:53,095 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 12:30:53,131 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 12:30:53,230 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 12:30:53,415 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 12:30:53,415 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 12:30:53,421 INFO L158 Benchmark]: Toolchain (without parser) took 6061.91ms. Allocated memory was 62.9MB in the beginning and 188.7MB in the end (delta: 125.8MB). Free memory was 34.6MB in the beginning and 78.3MB in the end (delta: -43.7MB). Peak memory consumption was 82.7MB. Max. memory is 16.1GB. [2021-12-15 12:30:53,422 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 62.9MB. Free memory was 45.1MB in the beginning and 45.1MB in the end (delta: 50.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 12:30:53,422 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2123.88ms. Allocated memory was 62.9MB in the beginning and 127.9MB in the end (delta: 65.0MB). Free memory was 34.5MB in the beginning and 53.0MB in the end (delta: -18.5MB). Peak memory consumption was 67.5MB. Max. memory is 16.1GB. [2021-12-15 12:30:53,422 INFO L158 Benchmark]: Boogie Procedure Inliner took 173.51ms. Allocated memory is still 127.9MB. Free memory was 53.0MB in the beginning and 41.8MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-15 12:30:53,423 INFO L158 Benchmark]: Boogie Preprocessor took 139.79ms. Allocated memory was 127.9MB in the beginning and 157.3MB in the end (delta: 29.4MB). Free memory was 41.8MB in the beginning and 95.1MB in the end (delta: -53.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-15 12:30:53,423 INFO L158 Benchmark]: RCFGBuilder took 3141.08ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 95.1MB in the beginning and 94.7MB in the end (delta: 400.7kB). Peak memory consumption was 55.6MB. Max. memory is 16.1GB. [2021-12-15 12:30:53,423 INFO L158 Benchmark]: TraceAbstraction took 477.71ms. Allocated memory is still 188.7MB. Free memory was 94.7MB in the beginning and 78.3MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-12-15 12:30:53,425 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 62.9MB. Free memory was 45.1MB in the beginning and 45.1MB in the end (delta: 50.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2123.88ms. Allocated memory was 62.9MB in the beginning and 127.9MB in the end (delta: 65.0MB). Free memory was 34.5MB in the beginning and 53.0MB in the end (delta: -18.5MB). Peak memory consumption was 67.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 173.51ms. Allocated memory is still 127.9MB. Free memory was 53.0MB in the beginning and 41.8MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 139.79ms. Allocated memory was 127.9MB in the beginning and 157.3MB in the end (delta: 29.4MB). Free memory was 41.8MB in the beginning and 95.1MB in the end (delta: -53.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 3141.08ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 95.1MB in the beginning and 94.7MB in the end (delta: 400.7kB). Peak memory consumption was 55.6MB. Max. memory is 16.1GB. * TraceAbstraction took 477.71ms. Allocated memory is still 188.7MB. Free memory was 94.7MB in the beginning and 78.3MB in the end (delta: 16.4MB). 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 12:30:53,460 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 Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable