./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_ptr_eq_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 173e3943 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_ptr_eq_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 e927e911c23486d4682cc4d9150666f96dac934e6255a36a06c854492483c520 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-173e394 [2021-11-06 11:42:14,194 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 11:42:14,197 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 11:42:14,240 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 11:42:14,242 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 11:42:14,249 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 11:42:14,256 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 11:42:14,261 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 11:42:14,263 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 11:42:14,268 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 11:42:14,269 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 11:42:14,270 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 11:42:14,270 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 11:42:14,272 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 11:42:14,273 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 11:42:14,274 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 11:42:14,276 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 11:42:14,278 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 11:42:14,279 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 11:42:14,283 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 11:42:14,292 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 11:42:14,293 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 11:42:14,294 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 11:42:14,295 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 11:42:14,297 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 11:42:14,300 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 11:42:14,300 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 11:42:14,301 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 11:42:14,302 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 11:42:14,302 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 11:42:14,303 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 11:42:14,303 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 11:42:14,304 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 11:42:14,305 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 11:42:14,306 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 11:42:14,306 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 11:42:14,307 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 11:42:14,307 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 11:42:14,307 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 11:42:14,308 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 11:42:14,308 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 11:42:14,309 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 11:42:14,333 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 11:42:14,334 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 11:42:14,334 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 11:42:14,334 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 11:42:14,335 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 11:42:14,335 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 11:42:14,336 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 11:42:14,336 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 11:42:14,336 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 11:42:14,336 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 11:42:14,337 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 11:42:14,337 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 11:42:14,337 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 11:42:14,337 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 11:42:14,337 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 11:42:14,337 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 11:42:14,338 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 11:42:14,338 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 11:42:14,338 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 11:42:14,338 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 11:42:14,338 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 11:42:14,338 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 11:42:14,338 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 11:42:14,339 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 11:42:14,339 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 11:42:14,339 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 11:42:14,339 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 11:42:14,339 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 11:42:14,339 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 11:42:14,339 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e927e911c23486d4682cc4d9150666f96dac934e6255a36a06c854492483c520 [2021-11-06 11:42:14,533 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 11:42:14,553 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 11:42:14,554 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 11:42:14,556 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 11:42:14,557 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 11:42:14,557 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_ptr_eq_harness.i [2021-11-06 11:42:14,615 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0bd75dc0/1e5edfafe2e140fc8b98de9d3d616102/FLAG21db9358d [2021-11-06 11:42:15,215 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 11:42:15,215 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_ptr_eq_harness.i [2021-11-06 11:42:15,244 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0bd75dc0/1e5edfafe2e140fc8b98de9d3d616102/FLAG21db9358d [2021-11-06 11:42:15,655 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0bd75dc0/1e5edfafe2e140fc8b98de9d3d616102 [2021-11-06 11:42:15,657 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 11:42:15,658 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 11:42:15,659 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 11:42:15,659 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 11:42:15,662 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 11:42:15,662 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:42:15" (1/1) ... [2021-11-06 11:42:15,663 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e363793 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:42:15, skipping insertion in model container [2021-11-06 11:42:15,663 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:42:15" (1/1) ... [2021-11-06 11:42:15,668 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 11:42:15,740 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 11:42:15,961 WARN L228 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_ptr_eq_harness.i[4484,4497] [2021-11-06 11:42:15,968 WARN L228 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_ptr_eq_harness.i[4544,4557] [2021-11-06 11:42:15,983 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-06 11:42:15,988 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-06 11:42:16,488 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:42:16,488 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:42:16,489 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:42:16,489 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:42:16,490 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:42:16,500 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:42:16,501 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:42:16,502 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:42:16,503 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:42:16,504 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:42:16,505 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:42:16,506 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:42:16,506 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:42:16,843 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:42:16,845 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:42:16,854 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:42:16,855 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:42:16,862 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:42:16,863 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:42:16,871 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:42:16,872 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:42:16,873 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:42:16,875 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:42:16,875 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:42:16,876 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:42:16,876 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:42:17,007 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-06 11:42:17,008 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-06 11:42:17,009 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-06 11:42:17,009 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-06 11:42:17,010 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-06 11:42:17,010 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-06 11:42:17,011 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-06 11:42:17,011 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-06 11:42:17,011 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-06 11:42:17,012 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-06 11:42:17,061 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 11:42:17,071 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 11:42:17,098 WARN L228 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_ptr_eq_harness.i[4484,4497] [2021-11-06 11:42:17,099 WARN L228 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_ptr_eq_harness.i[4544,4557] [2021-11-06 11:42:17,101 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-06 11:42:17,106 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-06 11:42:17,126 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:42:17,128 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:42:17,128 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:42:17,129 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:42:17,129 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:42:17,133 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:42:17,133 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:42:17,135 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:42:17,135 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:42:17,136 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:42:17,137 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:42:17,137 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:42:17,138 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:42:17,221 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:42:17,222 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:42:17,224 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:42:17,225 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:42:17,229 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:42:17,229 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:42:17,231 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:42:17,231 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:42:17,232 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:42:17,232 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:42:17,232 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:42:17,232 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:42:17,233 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:42:17,269 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-06 11:42:17,269 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-06 11:42:17,270 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-06 11:42:17,270 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-06 11:42:17,271 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-06 11:42:17,271 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-06 11:42:17,271 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-06 11:42:17,272 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-06 11:42:17,272 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-06 11:42:17,272 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-06 11:42:17,275 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 11:42:17,418 INFO L208 MainTranslator]: Completed translation [2021-11-06 11:42:17,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:42:17 WrapperNode [2021-11-06 11:42:17,419 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 11:42:17,419 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 11:42:17,420 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 11:42:17,420 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 11:42:17,425 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:42:17" (1/1) ... [2021-11-06 11:42:17,518 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:42:17" (1/1) ... [2021-11-06 11:42:17,551 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 11:42:17,553 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 11:42:17,553 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 11:42:17,553 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 11:42:17,559 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:42:17" (1/1) ... [2021-11-06 11:42:17,560 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:42:17" (1/1) ... [2021-11-06 11:42:17,569 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:42:17" (1/1) ... [2021-11-06 11:42:17,570 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:42:17" (1/1) ... [2021-11-06 11:42:17,586 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:42:17" (1/1) ... [2021-11-06 11:42:17,597 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:42:17" (1/1) ... [2021-11-06 11:42:17,603 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:42:17" (1/1) ... [2021-11-06 11:42:17,606 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 11:42:17,606 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 11:42:17,606 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 11:42:17,607 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 11:42:17,607 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:42:17" (1/1) ... [2021-11-06 11:42:17,616 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 11:42:17,628 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 11:42:17,639 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) [2021-11-06 11:42:17,646 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 [2021-11-06 11:42:17,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 11:42:17,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 11:42:17,676 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 11:42:17,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 11:42:17,931 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 11:42:17,932 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-11-06 11:42:17,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:42:17 BoogieIcfgContainer [2021-11-06 11:42:17,934 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 11:42:17,935 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 11:42:17,936 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 11:42:17,939 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 11:42:17,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 11:42:15" (1/3) ... [2021-11-06 11:42:17,940 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13ae33e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:42:17, skipping insertion in model container [2021-11-06 11:42:17,940 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:42:17" (2/3) ... [2021-11-06 11:42:17,940 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13ae33e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:42:17, skipping insertion in model container [2021-11-06 11:42:17,941 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:42:17" (3/3) ... [2021-11-06 11:42:17,942 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_ptr_eq_harness.i [2021-11-06 11:42:17,946 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 11:42:17,946 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-06 11:42:17,987 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 11:42:17,994 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 [2021-11-06 11:42:17,995 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-06 11:42:18,006 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.25) internal successors, (10), 9 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:42:18,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-06 11:42:18,015 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:42:18,016 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-06 11:42:18,016 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-06 11:42:18,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:42:18,020 INFO L85 PathProgramCache]: Analyzing trace with hash 28692802, now seen corresponding path program 1 times [2021-11-06 11:42:18,026 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 11:42:18,026 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778167965] [2021-11-06 11:42:18,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:42:18,027 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 11:42:18,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:42:18,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:42:18,422 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 11:42:18,422 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778167965] [2021-11-06 11:42:18,423 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778167965] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 11:42:18,423 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:42:18,423 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-06 11:42:18,425 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001292363] [2021-11-06 11:42:18,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 11:42:18,429 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 11:42:18,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 11:42:18,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 11:42:18,444 INFO L87 Difference]: Start difference. First operand has 10 states, 8 states have (on average 1.25) internal successors, (10), 9 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:42:18,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:42:18,498 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2021-11-06 11:42:18,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 11:42:18,499 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-06 11:42:18,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:42:18,502 INFO L225 Difference]: With dead ends: 14 [2021-11-06 11:42:18,502 INFO L226 Difference]: Without dead ends: 0 [2021-11-06 11:42:18,504 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 11:42:18,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-06 11:42:18,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-06 11:42:18,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:42:18,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-06 11:42:18,535 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2021-11-06 11:42:18,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:42:18,535 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-06 11:42:18,536 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:42:18,536 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-06 11:42:18,536 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-06 11:42:18,537 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:42:18,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 11:42:18,539 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-06 11:42:18,560 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-06 11:42:18,564 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-06 11:42:18,623 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-06 11:42:18,623 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-06 11:42:18,624 INFO L857 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2021-11-06 11:42:18,624 INFO L857 garLoopResultBuilder]: For program point L223-1(line 223) no Hoare annotation was computed. [2021-11-06 11:42:18,624 INFO L857 garLoopResultBuilder]: For program point L222(lines 1 8632) no Hoare annotation was computed. [2021-11-06 11:42:18,624 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-06 11:42:18,624 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-06 11:42:18,624 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-11-06 11:42:18,625 INFO L853 garLoopResultBuilder]: At program point L8632(line 8632) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_aws_ptr_eq_harness_~p2~0.offset ULTIMATE.start_aws_ptr_eq_harness_~p1~0.offset)) (.cse1 (= ULTIMATE.start_aws_ptr_eq_harness_~p1~0.base ULTIMATE.start_aws_ptr_eq_harness_~p2~0.base))) (and (<= |ULTIMATE.start_aws_ptr_eq_#res| 1) (or (<= |ULTIMATE.start_aws_ptr_eq_#res| 0) (and .cse0 .cse1)) (<= (div ULTIMATE.start___VERIFIER_assert_~cond 256) 0) (<= 0 |ULTIMATE.start_aws_ptr_eq_#res|) (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (or (not .cse0) (<= 1 |ULTIMATE.start_aws_ptr_eq_#res|) (not .cse1)))) [2021-11-06 11:42:18,625 INFO L853 garLoopResultBuilder]: At program point L6804(lines 6802 6805) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_aws_ptr_eq_harness_~p2~0.offset ULTIMATE.start_aws_ptr_eq_harness_~p1~0.offset)) (.cse1 (= ULTIMATE.start_aws_ptr_eq_harness_~p1~0.base ULTIMATE.start_aws_ptr_eq_harness_~p2~0.base))) (and (<= |ULTIMATE.start_aws_ptr_eq_#res| 1) (or (<= |ULTIMATE.start_aws_ptr_eq_#res| 0) (and .cse0 .cse1)) (<= 0 |ULTIMATE.start_aws_ptr_eq_#res|) (or (not .cse0) (<= 1 |ULTIMATE.start_aws_ptr_eq_#res|) (not .cse1)))) [2021-11-06 11:42:18,628 INFO L731 BasicCegarLoop]: Path program histogram: [1] [2021-11-06 11:42:18,629 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-06 11:42:18,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 11:42:18 BoogieIcfgContainer [2021-11-06 11:42:18,638 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-06 11:42:18,638 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-06 11:42:18,638 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-06 11:42:18,638 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-06 11:42:18,639 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:42:17" (3/4) ... [2021-11-06 11:42:18,641 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-06 11:42:18,646 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2021-11-06 11:42:18,646 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-06 11:42:18,646 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-06 11:42:18,647 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-06 11:42:18,661 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\result <= 1 && (\result <= 0 || (p2 == p1 && p1 == p2))) && 0 <= \result) && ((!(p2 == p1) || 1 <= \result) || !(p1 == p2)) [2021-11-06 11:42:18,662 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((\result <= 1 && (\result <= 0 || (p2 == p1 && p1 == p2))) && cond / 256 <= 0) && 0 <= \result) && 1 <= cond) && ((!(p2 == p1) || 1 <= \result) || !(p1 == p2)) [2021-11-06 11:42:18,675 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-11-06 11:42:18,675 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-06 11:42:18,676 INFO L168 Benchmark]: Toolchain (without parser) took 3017.48 ms. Allocated memory was 102.8 MB in the beginning and 169.9 MB in the end (delta: 67.1 MB). Free memory was 64.0 MB in the beginning and 92.3 MB in the end (delta: -28.2 MB). Peak memory consumption was 37.1 MB. Max. memory is 16.1 GB. [2021-11-06 11:42:18,676 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 77.6 MB. Free memory was 35.4 MB in the beginning and 35.4 MB in the end (delta: 36.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-06 11:42:18,677 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1759.74 ms. Allocated memory was 102.8 MB in the beginning and 134.2 MB in the end (delta: 31.5 MB). Free memory was 63.8 MB in the beginning and 78.4 MB in the end (delta: -14.6 MB). Peak memory consumption was 53.6 MB. Max. memory is 16.1 GB. [2021-11-06 11:42:18,677 INFO L168 Benchmark]: Boogie Procedure Inliner took 132.28 ms. Allocated memory is still 134.2 MB. Free memory was 78.4 MB in the beginning and 72.1 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-11-06 11:42:18,678 INFO L168 Benchmark]: Boogie Preprocessor took 53.36 ms. Allocated memory is still 134.2 MB. Free memory was 72.1 MB in the beginning and 70.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-06 11:42:18,678 INFO L168 Benchmark]: RCFGBuilder took 327.89 ms. Allocated memory is still 134.2 MB. Free memory was 70.0 MB in the beginning and 58.2 MB in the end (delta: 11.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-11-06 11:42:18,678 INFO L168 Benchmark]: TraceAbstraction took 702.34 ms. Allocated memory was 134.2 MB in the beginning and 169.9 MB in the end (delta: 35.7 MB). Free memory was 57.4 MB in the beginning and 94.4 MB in the end (delta: -37.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-06 11:42:18,679 INFO L168 Benchmark]: Witness Printer took 36.83 ms. Allocated memory is still 169.9 MB. Free memory was 94.4 MB in the beginning and 92.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-06 11:42:18,683 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 77.6 MB. Free memory was 35.4 MB in the beginning and 35.4 MB in the end (delta: 36.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1759.74 ms. Allocated memory was 102.8 MB in the beginning and 134.2 MB in the end (delta: 31.5 MB). Free memory was 63.8 MB in the beginning and 78.4 MB in the end (delta: -14.6 MB). Peak memory consumption was 53.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 132.28 ms. Allocated memory is still 134.2 MB. Free memory was 78.4 MB in the beginning and 72.1 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 53.36 ms. Allocated memory is still 134.2 MB. Free memory was 72.1 MB in the beginning and 70.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 327.89 ms. Allocated memory is still 134.2 MB. Free memory was 70.0 MB in the beginning and 58.2 MB in the end (delta: 11.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 702.34 ms. Allocated memory was 134.2 MB in the beginning and 169.9 MB in the end (delta: 35.7 MB). Free memory was 57.4 MB in the beginning and 94.4 MB in the end (delta: -37.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 36.83 ms. Allocated memory is still 169.9 MB. Free memory was 94.4 MB in the beginning and 92.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 223]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 5 SDtfs, 9 SDslu, 3 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, InterpolantAutomatonStates: 4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 3 NumberOfFragments, 68 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 41 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 6802]: Loop Invariant Derived loop invariant: ((\result <= 1 && (\result <= 0 || (p2 == p1 && p1 == p2))) && 0 <= \result) && ((!(p2 == p1) || 1 <= \result) || !(p1 == p2)) - InvariantResult [Line: 8632]: Loop Invariant Derived loop invariant: ((((\result <= 1 && (\result <= 0 || (p2 == p1 && p1 == p2))) && cond / 256 <= 0) && 0 <= \result) && 1 <= cond) && ((!(p2 == p1) || 1 <= \result) || !(p1 == p2)) RESULT: Ultimate proved your program to be correct! [2021-11-06 11:42:18,712 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: TRUE